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{{short description|Cycling of substances through biotic and abiotic compartments of Earth}}
{{short description|Cycling of substances through and compartments of Earth}}
{{biogeochemical cycle sidebar}}
A '''biogeochemical cycle''' is the pathway by which a [[chemical substance]] [[Wiktionary:cycle|cycles]] (is turned over or moves through) the [[Biotic components|biotic]] and the [[abiotic]] compartments of [[Earth]]. The biotic compartment is the [[biosphere]] and the abiotic compartments are the [[atmosphere]], [[hydrosphere]] and [[lithosphere]]. There are [[biogeochemistry|biogeochemical]] cycles for chemical elements, such as for [[calcium cycle|calcium]], [[carbon cycle|carbon]], [[hydrogen cycle|hydrogen]], [[mercury cycle|mercury]], [[nitrogen cycle|nitrogen]], [[oxygen cycle|oxygen]], [[phosphorus cycle|phosphorus]], [[selenium cycle|selenium]], [[iron cycle|iron]] and [[sulfur cycle|sulfur]], as well as molecular cycles, such as for [[water cycle|water]] and [[silica cycle|silica]]. There are also macroscopic cycles, such as the [[rock cycle]], and human-induced cycles for synthetic compounds such as [[polychlorinated biphenyl]]s (PCBs). In some cycles there are reservoirs where a substance can remain or be [[:Wiktionary:sequestered|sequestered]] for a long period of time.
A biogeochemical cycle is the pathway by which a chemical substance cycles (is turned over or moves through) the biotic and the abiotic compartments of Earth. The biotic compartment is the biosphere and the abiotic compartments are the atmosphere, hydrosphere and lithosphere. There are biogeochemical cycles for chemical elements, such as for calcium, carbon, hydrogen, mercury, nitrogen, oxygen, phosphorus, selenium, iron and sulfur, as well as molecular cycles, such as for water and silica. There are also macroscopic cycles, such as the rock cycle, and human-induced cycles for synthetic compounds such as polychlorinated biphenyls (PCBs). In some cycles there are reservoirs where a substance can remain or be sequestered for a long period of time.
生物地质化学循环是一种化学物质循环的途径,通过这种途径,地球上的生物和非生物的部分进行循环。生物区域是生物圈,非生物区域是大气圈、水圈和岩石圈。化学元素有生物地球化学循环,如钙、碳、氢、汞、氮、氧、磷、硒、铁和硫,以及分子循环,如水和硅。也有宏观循环,如岩石循环,和人为诱导的合成化合物,如多氯联苯(PCBs)的循环。在某些循环中,存在一种物质可以长期保留或被隔离的储存库。
==Overview==
[[File:Generalized biogeochemical cycle.jpg|thumb|upright=1.2| {{center|Generalized biogeochemical cycle{{hsp}}<ref name=Moses2012 />}}]]
thumb|upright=1.2|
1.2 |
Energy flows directionally through ecosystems, entering as sunlight (or inorganic molecules for chemoautotrophs) and leaving as heat during the many transfers between trophic levels. However, the matter that makes up living organisms is conserved and recycled. The six most common elements associated with organic molecules—carbon, nitrogen, hydrogen, oxygen, phosphorus, and sulfur—take a variety of chemical forms and may exist for long periods in the atmosphere, on land, in water, or beneath the Earth's surface. Geologic processes, such as weathering, erosion, water drainage, and the subduction of the continental plates, all play a role in this recycling of materials. Because geology and chemistry have major roles in the study of this process, the recycling of inorganic matter between living organisms and their environment is called a biogeochemical cycle.<ref name=OpenStax>[https://cnx.org/contents/ZdFkREJc@7/Biogeochemical-Cycles Biogeochemical Cycles] {{Webarchive|url=https://web.archive.org/web/20210927040316/https://cnx.org/contents/ZdFkREJc@7/Biogeochemical-Cycles |date=2021-09-27 }}, ''OpenStax'', 9 May 2019. [[File:CC-BY icon.svg|50px]] Material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License] {{Webarchive|url=https://web.archive.org/web/20171016050101/https://creativecommons.org/licenses/by/4.0/ |date=2017-10-16 }}.</ref>
Energy flows directionally through ecosystems, entering as sunlight (or inorganic molecules for chemoautotrophs) and leaving as heat during the many transfers between trophic levels. However, the matter that makes up living organisms is conserved and recycled. The six most common elements associated with organic molecules—carbon, nitrogen, hydrogen, oxygen, phosphorus, and sulfur—take a variety of chemical forms and may exist for long periods in the atmosphere, on land, in water, or beneath the Earth's surface. Geologic processes, such as weathering, erosion, water drainage, and the subduction of the continental plates, all play a role in this recycling of materials. Because geology and chemistry have major roles in the study of this process, the recycling of inorganic matter between living organisms and their environment is called a biogeochemical cycle.Biogeochemical Cycles , OpenStax, 9 May 2019. 50px Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License .
能量通过生态系统定向流动,以阳光(或化能自养生物的无机分子)的形式进入,并在多个营养级之间转移时以热量的形式离开。然而,组成生物体的物质是被保存和循环利用的。与有机分子有关的六种最常见元素ーー碳、氮、氢、氧、磷和硫ーー以各种化学形式存在,可能在大气层、陆地、水中或地球表面以下长期存在。地质过程,如风化、侵蚀、排水和大陆板块的俯冲,都在这种物质循环中发挥作用。因为地质学和化学在这个过程的研究中扮演着重要的角色,在生物体和它们的环境之间无机物的循环被称为生物地质化学循环。生物地球化学循环,OpenStax,2019年5月9日。50px 材料复制自这个来源,可以在知识共享署名4.0国际许可证下获得。
The six aforementioned elements are used by organisms in a variety of ways. Hydrogen and oxygen are found in water and organic molecules, both of which are essential to life. Carbon is found in all organic molecules, whereas nitrogen is an important component of nucleic acids and proteins. Phosphorus is used to make nucleic acids and the phospholipids that comprise biological membranes. Sulfur is critical to the three-dimensional shape of proteins. The cycling of these elements is interconnected. For example, the movement of water is critical for leaching sulfur and phosphorus into rivers which can then flow into oceans. Minerals cycle through the biosphere between the biotic and abiotic components and from one organism to another.<ref name=Fisher2019>Fisher M. R. (Ed.) (2019) ''Environmental Biology'', [https://openoregon.pressbooks.pub/envirobiology/chapter/3-2-biogeochemical-cycles/ 3.2 Biogeochemical Cycles] {{Webarchive|url=https://web.archive.org/web/20210927040314/https://openoregon.pressbooks.pub/envirobiology/chapter/3-2-biogeochemical-cycles/ |date=2021-09-27 }}, OpenStax. [[File:CC-BY icon.svg|50px]] Material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License] {{Webarchive|url=https://web.archive.org/web/20171016050101/https://creativecommons.org/licenses/by/4.0/ |date=2017-10-16 }}.</ref>
The six aforementioned elements are used by organisms in a variety of ways. Hydrogen and oxygen are found in water and organic molecules, both of which are essential to life. Carbon is found in all organic molecules, whereas nitrogen is an important component of nucleic acids and proteins. Phosphorus is used to make nucleic acids and the phospholipids that comprise biological membranes. Sulfur is critical to the three-dimensional shape of proteins. The cycling of these elements is interconnected. For example, the movement of water is critical for leaching sulfur and phosphorus into rivers which can then flow into oceans. Minerals cycle through the biosphere between the biotic and abiotic components and from one organism to another.Fisher M. R. (Ed.) (2019) Environmental Biology, 3.2 Biogeochemical Cycles , OpenStax. 50px Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License .
上述六种元素被生物体以各种方式利用。氢和氧存在于水和有机分子中,这两种分子对于生命都是必不可少的。所有的有机分子中都含有碳,而氮是核酸和蛋白质的重要组成部分。磷被用来制造核酸和构成生物膜的磷脂。硫对蛋白质的三维形状至关重要。这些元素的循环是相互关联的。例如,水的流动对于将硫和磷渗入河流,然后流入海洋是至关重要的。矿物质在生物圈中循环,在生物和非生物组成部分之间循环,在生物之间循环。(教育署)(2019)环境生物学,3.2生物地球化学循环,OpenStax。50px 材料复制自这个来源,可以在知识共享署名4.0国际许可证下获得。
Ecological systems ([[ecosystem]]s) have many biogeochemical cycles operating as a part of the system, for example, the water cycle, the carbon cycle, the nitrogen cycle, etc. All chemical elements occurring in organisms are part of biogeochemical cycles. In addition to being a part of living organisms, these chemical elements also cycle through abiotic factors of ecosystems such as water ([[hydrosphere]]), land ([[lithosphere]]), and/or the air ([[atmosphere]]).<ref name="enviroliteracy.org">{{cite web|title=Biogeochemical Cycles|url=http://www.enviroliteracy.org/subcategory.php/198.html|publisher=The Environmental Literacy Council|access-date=20 November 2017|archive-date=30 April 2015|archive-url=https://web.archive.org/web/20150430133927/http://enviroliteracy.org/subcategory.php/198.html|url-status=live}}</ref>
Ecological systems (ecosystems) have many biogeochemical cycles operating as a part of the system, for example, the water cycle, the carbon cycle, the nitrogen cycle, etc. All chemical elements occurring in organisms are part of biogeochemical cycles. In addition to being a part of living organisms, these chemical elements also cycle through abiotic factors of ecosystems such as water (hydrosphere), land (lithosphere), and/or the air (atmosphere).
生态系统(生态系统)有许多作为系统一部分运行的生物地球化学循环,例如水循环、碳循环、氮循环等。生物体内的所有化学元素都是生物地球化学循环的一部分。除了是生物体的一部分,这些化学元素还通过生态系统的非生物因素循环,如水(水圈)、陆地(岩石圈)和/或空气(大气)。
The living factors of the planet can be referred to collectively as the biosphere. All the nutrients—such as [[carbon]], [[nitrogen]], [[oxygen]], [[phosphorus]], and [[sulfur]]—used in ecosystems by living organisms are a part of a ''closed system''; therefore, these chemicals are recycled instead of being lost and replenished constantly such as in an open system.<ref name="enviroliteracy.org"/>
The living factors of the planet can be referred to collectively as the biosphere. All the nutrients—such as carbon, nitrogen, oxygen, phosphorus, and sulfur—used in ecosystems by living organisms are a part of a closed system; therefore, these chemicals are recycled instead of being lost and replenished constantly such as in an open system.
地球上的生命因素可以统称为生物圈。生物体在生态系统中使用的所有营养物质,如碳、氮、氧、磷和硫,都是一个封闭系统的一部分; 因此,这些化学物质会被循环利用,而不是像在开放系统中那样不断地丢失和补充。
The diagram on the right shows a generalised biogeochemical cycle. The major parts of the biosphere are connected by the flow of chemical elements and compounds. In many of these cycles, the biota plays an important role. Matter from the Earth's interior is released by volcanoes. The atmosphere exchanges some compounds and elements rapidly with the biota and oceans. Exchanges of materials between rocks, soils, and the oceans are generally slower by comparison.<ref name=Moses2012>Moses, M. (2012) [http://editors.eol.org/eoearth/wiki/biogeochemical_cycles Biogeochemical cycles] {{Webarchive|url=https://web.archive.org/web/20211122221017/https://editors.eol.org/eoearth/wiki/Biogeochemical_cycles |date=2021-11-22 }}. ''[[Encyclopedia of Earth]]''.</ref>
The diagram on the right shows a generalised biogeochemical cycle. The major parts of the biosphere are connected by the flow of chemical elements and compounds. In many of these cycles, the biota plays an important role. Matter from the Earth's interior is released by volcanoes. The atmosphere exchanges some compounds and elements rapidly with the biota and oceans. Exchanges of materials between rocks, soils, and the oceans are generally slower by comparison.Moses, M. (2012) Biogeochemical cycles . Encyclopedia of Earth.
右边的图表显示了一个概括的生物地质化学循环。生物圈的主要部分通过化学元素和化合物的流动相连接。在许多这样的循环中,生物群起着重要的作用。地球内部的物质通过火山喷发而释放出来。大气与生物群和海洋迅速交换一些化合物和元素。相比之下,岩石、土壤和海洋之间的物质交换通常要慢一些。地球百科全书。
The flow of energy in an ecosystem is an ''open system''; the sun constantly gives the planet energy in the form of light while it is eventually used and lost in the form of heat throughout the [[trophic level]]s of a food web. Carbon is used to make carbohydrates, fats, and proteins, the major sources of [[food energy]]. These compounds are oxidized to release carbon dioxide, which can be captured by plants to make organic compounds. The [[chemical reaction]] is powered by the light energy of the sun.
The flow of energy in an ecosystem is an open system; the sun constantly gives the planet energy in the form of light while it is eventually used and lost in the form of heat throughout the trophic levels of a food web. Carbon is used to make carbohydrates, fats, and proteins, the major sources of food energy. These compounds are oxidized to release carbon dioxide, which can be captured by plants to make organic compounds. The chemical reaction is powered by the light energy of the sun.
生态系统中的能量流是一个开放的系统; 太阳不断地以光的形式给予地球能量,而这些能量最终在整个食物网的营养级中以热的形式被使用和损失。碳被用来制造碳水化合物、脂肪和蛋白质,它们是食物能量的主要来源。这些化合物被氧化,释放出二氧化碳,这些二氧化碳可以被植物捕获,制造出有机化合物。这种化学反应是由太阳的光能驱动的。
Sunlight is required to combine carbon with hydrogen and oxygen into an energy source, but ecosystems in the [[deep sea]], where no sunlight can penetrate, obtain energy from sulfur. [[Hydrogen sulfide]] near [[hydrothermal vent]]s can be utilized by organisms such as the [[giant tube worm]]. In the [[sulfur cycle]], sulfur can be forever recycled as a source of energy. Energy can be released through the [[oxidation]] and [[redox|reduction]] of sulfur compounds (e.g., oxidizing elemental sulfur to [[sulfite]] and then to [[sulfate]]).
Sunlight is required to combine carbon with hydrogen and oxygen into an energy source, but ecosystems in the deep sea, where no sunlight can penetrate, obtain energy from sulfur. Hydrogen sulfide near hydrothermal vents can be utilized by organisms such as the giant tube worm. In the sulfur cycle, sulfur can be forever recycled as a source of energy. Energy can be released through the oxidation and reduction of sulfur compounds (e.g., oxidizing elemental sulfur to sulfite and then to sulfate).
阳光需要将碳、氢和氧结合成一种能量来源,但是深海生态系统由于没有阳光可以穿透,从硫中获得能量。热液喷口附近的硫化氢可供生物如巨型管虫利用。在硫磺循环中,硫磺可以作为一种能源永久性地回收利用。能量可以通过氧化和还原硫化合物(例如,氧化元素硫生成亚硫酸盐,然后生成硫酸盐)来释放。
<gallery mode=packed style=float:left; heights=170px>
File:BIOGEOCHEMICAL CYCLING OF ELEMENTS.svg| {{center|Examples of major biogeochemical processes}}
File:WhalePump.jpg|The oceanic [[whale pump]] showing how whales cycle nutrients through the ocean [[water column]]
File:Global carbon cycle.webp|The implications of shifts in the [[global carbon cycle]] due to human activity are concerning scientists.<ref>Avelar, S., van der Voort, T.S. and Eglinton, T.I. (2017) "Relevance of carbon stocks of marine sediments for national greenhouse gas inventories of maritime nations". ''Carbon balance and management'', '''12'''(1): 10.{{doi|10.1186/s13021-017-0077-x}}. [[File:CC-BY icon.svg|50px]] Material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License] {{Webarchive|url=https://web.archive.org/web/20171016050101/https://creativecommons.org/licenses/by/4.0/ |date=2017-10-16 }}.</ref>
</gallery>
File:BIOGEOCHEMICAL CYCLING OF ELEMENTS.svg|
File:WhalePump.jpg|The oceanic whale pump showing how whales cycle nutrients through the ocean water column
File:Global carbon cycle.webp|The implications of shifts in the global carbon cycle due to human activity are concerning scientists.Avelar, S., van der Voort, T.S. and Eglinton, T.I. (2017) "Relevance of carbon stocks of marine sediments for national greenhouse gas inventories of maritime nations". Carbon balance and management, 12(1): 10.. 50px Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License .
文件: 元素的生物地球化学循环.svg | 文件: whalepp.jpg | 海洋鲸鱼水泵显示鲸鱼如何通过海洋水柱循环养分文件: 全球碳循环.webp | 由于人类活动引起的全球碳循环变化的影响令科学家担忧 | Avelar,s. ,van der Voort,t.s。还有艾格林顿,t.i。(2017年)”海洋沉积物碳储存与海洋国家温室气体清单的相关性”。碳平衡与管理,12(1) : 10。.50px 材料复制自这个来源,可以在知识共享署名4.0国际许可证下获得。
{{clear}}
Although the Earth constantly receives energy from the sun, its chemical composition is essentially fixed, as the additional matter is only occasionally added by meteorites. Because this chemical composition is not replenished like energy, all processes that depend on these chemicals must be recycled. These cycles include both the living biosphere and the nonliving lithosphere, atmosphere, and hydrosphere.
Although the Earth constantly receives energy from the sun, its chemical composition is essentially fixed, as the additional matter is only occasionally added by meteorites. Because this chemical composition is not replenished like energy, all processes that depend on these chemicals must be recycled. These cycles include both the living biosphere and the nonliving lithosphere, atmosphere, and hydrosphere.
虽然地球不断地从太阳那里获得能量,但其化学成份基本上是固定的,因为额外的物质只是偶尔被陨石添加进来。因为这些化学成份不像能源那样得到补充,所以所有依赖这些化学物质的过程都必须被回收。这些循环包括活生生的生物圈和无生命的岩石圈、大气圈和水圈。
Biogeochemical cycles can be contrasted with [[geochemical cycle]]s. The latter deals only with [[Earth's crust|crustal]] and subcrustal reservoirs even though some process from both overlap.
Biogeochemical cycles can be contrasted with geochemical cycles. The latter deals only with crustal and subcrustal reservoirs even though some process from both overlap.
生物地球化学旋回可与地球化学旋回对比。后者仅涉及地壳和地下储层,即使两者有重叠的过程。
== Reservoirs ==
The chemicals are sometimes held for long periods of time in one place. This place is called a ''reservoir'', which, for example, includes such things as [[coal]] deposits that are storing [[carbon]] for a long period of time.<ref name="carbon">{{cite web|last1=Baedke|first1=Steve J.|last2=Fichter|first2=Lynn S.|title=Biogeochemical Cycles: Carbon Cycle|url=http://csmgeo.csm.jmu.edu/geollab/idls/carboncycle.htm|website=Supplimental Lecture Notes for Geol 398|publisher=James Madison University|access-date=20 November 2017|archive-date=1 December 2017|archive-url=https://web.archive.org/web/20171201043948/http://csmgeo.csm.jmu.edu/geollab/idls/carboncycle.htm|url-status=live}}</ref> When chemicals are held for only short periods of time, they are being held in ''exchange pools''. Examples of exchange pools include plants and animals.<ref name="carbon" />
The chemicals are sometimes held for long periods of time in one place. This place is called a reservoir, which, for example, includes such things as coal deposits that are storing carbon for a long period of time. When chemicals are held for only short periods of time, they are being held in exchange pools. Examples of exchange pools include plants and animals.
这些化学品有时在一个地方放置很长时间。这个地方被称为一个水库,例如,这个水库包括一些煤矿,这些煤矿可以长时间储存碳。当化学品只持有很短一段时间时,它们就被存放在交换池中。交换池的例子包括植物及动物。
Plants and animals utilize carbon to produce carbohydrates, fats, and proteins, which can then be used to build their internal structures or to obtain energy. Plants and animals temporarily use carbon in their systems and then release it back into the air or surrounding medium. Generally, reservoirs are abiotic factors whereas exchange pools are biotic factors. Carbon is held for a relatively short time in plants and animals in comparison to coal deposits. The amount of time that a chemical is held in one place is called its [[residence time]] or [[turnover time]] (also called the renewal time or exit age).<ref name="carbon" />
Plants and animals utilize carbon to produce carbohydrates, fats, and proteins, which can then be used to build their internal structures or to obtain energy. Plants and animals temporarily use carbon in their systems and then release it back into the air or surrounding medium. Generally, reservoirs are abiotic factors whereas exchange pools are biotic factors. Carbon is held for a relatively short time in plants and animals in comparison to coal deposits. The amount of time that a chemical is held in one place is called its residence time or turnover time (also called the renewal time or exit age).
植物和动物利用碳来生产碳水化合物、脂肪和蛋白质,这些物质可以用来建立它们的内部结构或获得能量。植物和动物暂时使用它们系统中的碳,然后释放到空气中或周围的介质。一般来说,储层是非生物因素,而交换池是生物因素。与煤层相比,动植物体内的碳储存时间相对较短。一种化学品在一个地方停留的时间称为停留时间或周转时间(也称为更新时间或退出时间)。
==Box models==
{{see also|Climate box models}}
[[File:Simple box model.png|thumb|upright=1|right| {{center|'''Basic one-box model'''}}]]
thumb|upright=1|right|
= = 盒子模型 = = 拇指 | 竖直 = 1 | 右 |
Box models are widely used to model biogeochemical systems.<ref name=Sarmiento1984>{{cite journal| author = Sarmiento, J.L.|author2=Toggweiler, J.R.| year = 1984| title = A new model for the role of the oceans in determining atmospheric P CO 2| journal = Nature| volume = 308| pages = 621–24| doi = 10.1038/308621a0| issue=5960 |bibcode = 1984Natur.308..621S |s2cid=4312683}}</ref><ref name=Bianchi2007>[[Thomas S. Bianchi|Bianchi, Thomas]] (2007) [https://books.google.com/books?id=3no8DwAAQBAJ&printsec=frontcover&dq=%22Biogeochemistry+of+Estuaries%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwixq4PYm_brAhXYILcAHUVzBf0QuwUwAHoECAIQBw#v=onepage&q=%22Biogeochemistry%20of%20Estuaries%22&f=false ''Biogeochemistry of Estuaries''] {{Webarchive|url=https://web.archive.org/web/20210925012739/https://books.google.com/books?id=3no8DwAAQBAJ&printsec=frontcover&dq=%22Biogeochemistry+of+Estuaries%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwixq4PYm_brAhXYILcAHUVzBf0QuwUwAHoECAIQBw#v=onepage&q=%22Biogeochemistry%20of%20Estuaries%22&f=false |date=2021-09-25 }} page 9, Oxford University Press. {{ISBN|9780195160826}}.</ref> Box models are simplified versions of complex systems, reducing them to boxes (or storage [[Thermodynamics#Instrumentation|reservoir]]s) for chemical materials, linked by material [[flux]]es (flows). Simple box models have a small number of boxes with properties, such as volume, that do not change with time. The boxes are assumed to behave as if they were mixed homogeneously.<ref name=Bianchi2007 /> These models are often used to derive analytical formulas describing the dynamics and steady-state abundance of the chemical species involved.
Box models are widely used to model biogeochemical systems.Bianchi, Thomas (2007) Biogeochemistry of Estuaries page 9, Oxford University Press. . Box models are simplified versions of complex systems, reducing them to boxes (or storage reservoirs) for chemical materials, linked by material fluxes (flows). Simple box models have a small number of boxes with properties, such as volume, that do not change with time. The boxes are assumed to behave as if they were mixed homogeneously. These models are often used to derive analytical formulas describing the dynamics and steady-state abundance of the chemical species involved.
箱式模型被广泛用于模拟生物地球化学系统。《河口生物地球化学》 ,牛津大学出版社2007年第9页。.盒子模型是复杂系统的简化版本,将它们简化为化学材料的盒子(或储存库) ,通过材料流(流)连接起来。简单的盒子模型有少量的盒子,它们具有不随时间变化的属性,比如卷。假定这些盒子的行为好像它们是均匀混合的。这些模型经常被用来推导描述所涉及的化学物种的动力学和稳态丰度的解析公式。
The diagram at the right shows a basic one-box model. The reservoir contains the amount of material ''M'' under consideration, as defined by chemical, physical or biological properties. The source ''Q'' is the flux of material into the reservoir, and the sink ''S'' is the flux of material out of the reservoir. The budget is the check and balance of the sources and sinks affecting material turnover in a reservoir. The reservoir is in a [[steady state]] if ''Q'' = ''S'', that is, if the sources balance the sinks and there is no change over time.<ref name=Bianchi2007 />
The diagram at the right shows a basic one-box model. The reservoir contains the amount of material M under consideration, as defined by chemical, physical or biological properties. The source Q is the flux of material into the reservoir, and the sink S is the flux of material out of the reservoir. The budget is the check and balance of the sources and sinks affecting material turnover in a reservoir. The reservoir is in a steady state if Q = S, that is, if the sources balance the sinks and there is no change over time.
右边的图表显示了一个基本的单箱模型。储层包含了正在考虑的物质 m 的数量,按照化学、物理或生物特性的定义。源 q 是流入储层的物质通量,汇 s 是流出储层的物质通量。预算是水库中影响物料周转的源和汇的制约和平衡。当 q = s 时,储层处于稳定状态,也就是说,如果源平衡汇而且随时间没有变化。
The residence or turnover time is the average time material spends resident in the reservoir. If the reservoir is in a steady state, this is the same as the time it takes to fill or drain the reservoir. Thus, if τ is the turnover time, then τ = M/S.<ref name=Bianchi2007 /> The equation describing the rate of change of content in a reservoir is
The residence or turnover time is the average time material spends resident in the reservoir. If the reservoir is in a steady state, this is the same as the time it takes to fill or drain the reservoir. Thus, if τ is the turnover time, then τ = M/S. The equation describing the rate of change of content in a reservoir is
停留时间或周转时间是物质在水库中停留的平均时间。如果水库处于稳定状态,这等于水库蓄水或排水所需的时间。因此,如果 τ 是周转时间,那么 τ = m/s。描述储层含量变化速率的方程是
::<math> \frac{dM}{dt} = Q - S = Q - \frac{M}{\tau}</math>
:: \frac{dM}{dt} = Q - S = Q - \frac{M}{\tau}
* frac { dM }{ dt } = q-s = q-frac { m }{ tau }
When two or more reservoirs are connected, the material can be regarded as cycling between the reservoirs, and there can be predictable patterns to the cyclic flow.<ref name=Bianchi2007 /> More complex [[multi-compartment model|multibox models]] are usually solved using numerical techniques.
When two or more reservoirs are connected, the material can be regarded as cycling between the reservoirs, and there can be predictable patterns to the cyclic flow. More complex multibox models are usually solved using numerical techniques.
当两个或两个以上的油藏连通时,物质可以看作是油藏之间的循环,循环流动具有可预测的规律。更复杂的多箱模型通常用数值技术求解。
[[File:Simplified budget of carbon flows in the ocean.png|thumb|upright=0.9|left| {{center|'''Simple three box model'''<br /> <small>simplified budget of ocean carbon flows{{hsp}}<ref name=Middelburg2019>Middelburg, J.J.(2019) ''Marine carbon biogeochemistry: a primer for earth system scientists'', page 5, Springer Nature. {{ISBN|9783030108229}}. {{doi|10.1007/978-3-030-10822-9}}. [[File:CC-BY icon.svg|50px]] Material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License] {{Webarchive|url=https://web.archive.org/web/20171016050101/https://creativecommons.org/licenses/by/4.0/ |date=2017-10-16 }}.</ref></small>}}]]
[[File:Simplified diagram of the global carbon cycle.jpg|thumb|upright=2.2|right| {{center|'''More complex model with many interacting boxes'''<br /><small>export and burial rates of terrestrial organic carbon in the ocean{{hsp}}<ref name=Kandasamy2016 /></small>}}]]
thumb|upright=2.2|right|
2.2 | right |
{{Quote box
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|quote = Global biogeochemical box models usually measure:<br />{{space|12}}— ''reservoir masses'' in petagrams (Pg)<br />{{space|12}}— ''flow fluxes'' in petagrams per year (Pg yr<sup>−1</sup>)<br /> ________________________________________________<br /> <small>one [[petagram]] {{=}} 10<sup>15</sup> grams = one [[gigatonne]] {{=}} one [[billion]] (10<sup>9</sup>) [[tonne]]s</small>
|source =
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{{clear left}}
The diagram on the left above shows a simplified budget of ocean carbon flows. It is composed of three simple interconnected box models, one for the [[euphotic zone]], one for the [[Aphotic zone|ocean interior]] or dark ocean, and one for [[ocean sediment]]s. In the euphotic zone, net [[phytoplankton production]] is about 50 Pg C each year. About 10 Pg is exported to the ocean interior while the other 40 Pg is respired. Organic carbon degradation occurs as [[Particulate organic carbon|particles]] ([[marine snow]]) settle through the ocean interior. Only 2 Pg eventually arrives at the seafloor, while the other 8 Pg is respired in the dark ocean. In sediments, the time scale available for degradation increases by orders of magnitude with the result that 90% of the organic carbon delivered is degraded and only 0.2 Pg C yr<sup>−1</sup> is eventually buried and transferred from the biosphere to the geosphere.<ref name=Middelburg2019 />
The diagram on the left above shows a simplified budget of ocean carbon flows. It is composed of three simple interconnected box models, one for the euphotic zone, one for the ocean interior or dark ocean, and one for ocean sediments. In the euphotic zone, net phytoplankton production is about 50 Pg C each year. About 10 Pg is exported to the ocean interior while the other 40 Pg is respired. Organic carbon degradation occurs as particles (marine snow) settle through the ocean interior. Only 2 Pg eventually arrives at the seafloor, while the other 8 Pg is respired in the dark ocean. In sediments, the time scale available for degradation increases by orders of magnitude with the result that 90% of the organic carbon delivered is degraded and only 0.2 Pg C yr−1 is eventually buried and transferred from the biosphere to the geosphere.
上面左边的图表显示了海洋碳流动的简化预算。它由三个简单的相互连接的盒子模型组成,一个是透光层模型,一个是海洋内部或暗海洋模型,一个是海洋沉积物模型。在透光带,每年的净浮游植物生产量约为50 Pg c。大约10pg 出口到海洋内陆,其余40pg 则进行呼吸处理。有机碳降解发生在粒子(海洋雪)通过海洋内部沉降。最终只有2个 Pg 到达海底,而另外8个 Pg 则在黑暗的海洋中呼吸。在沉积物中,可用于降解的时间尺度每100秒数量级增加一次,结果是90% 的有机碳被降解,只有0.2 Pg c yr-1最终被掩埋并从生物圈转移到地圈。
The diagram on the right above shows a more complex model with many interacting boxes. Reservoir masses here represents ''carbon stocks'', measured in Pg C. Carbon exchange fluxes, measured in Pg C yr<sup>−1</sup>, occur between the atmosphere and its two major sinks, the land and the ocean. The black numbers and arrows indicate the reservoir mass and exchange fluxes estimated for the year 1750, just before the [[Industrial Revolution]]. The red arrows (and associated numbers) indicate the annual flux changes due to anthropogenic activities, averaged over the 2000–2009 time period. They represent how the carbon cycle has changed since 1750. Red numbers in the reservoirs represent the cumulative changes in anthropogenic carbon since the start of the Industrial Period, 1750–2011.<ref>{{cite journal |doi = 10.1063/1.1510279|title = Sinks for Anthropogenic Carbon|year = 2002|last1 = Sarmiento|first1 = Jorge L.|last2 = Gruber|first2 = Nicolas|journal = Physics Today|volume = 55|issue = 8|pages = 30–36|bibcode = 2002PhT....55h..30S}}</ref><ref>{{cite journal |doi = 10.13140/2.1.1081.8883|year = 2013|last1 = Chhabra|first1 = Abha|title = Carbon and Other Biogeochemical Cycles}}</ref><ref name=Kandasamy2016>{{cite journal |doi = 10.3389/fmars.2016.00259|title = Perspectives on the Terrestrial Organic Matter Transport and Burial along the Land-Deep Sea Continuum: Caveats in Our Understanding of Biogeochemical Processes and Future Needs|year = 2016|last1 = Kandasamy|first1 = Selvaraj|last2 = Nagender Nath|first2 = Bejugam|journal = Frontiers in Marine Science|volume = 3|s2cid = 30408500|doi-access = free}} [[File:CC-BY icon.svg|50px]] Material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License] {{Webarchive|url=https://web.archive.org/web/20171016050101/https://creativecommons.org/licenses/by/4.0/ |date=2017-10-16 }}.</ref>
The diagram on the right above shows a more complex model with many interacting boxes. Reservoir masses here represents carbon stocks, measured in Pg C. Carbon exchange fluxes, measured in Pg C yr−1, occur between the atmosphere and its two major sinks, the land and the ocean. The black numbers and arrows indicate the reservoir mass and exchange fluxes estimated for the year 1750, just before the Industrial Revolution. The red arrows (and associated numbers) indicate the annual flux changes due to anthropogenic activities, averaged over the 2000–2009 time period. They represent how the carbon cycle has changed since 1750. Red numbers in the reservoirs represent the cumulative changes in anthropogenic carbon since the start of the Industrial Period, 1750–2011. 50px Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License .
上面右边的图表显示了一个包含许多交互框的更复杂的模型。这里的储存量代表碳储量,以 Pg c a r-1为单位测量碳交换通量,发生在大气层和它的两个主要吸收汇,陆地和海洋之间。黑色的数字和箭头表示的是1750年工业革命前的水库规模和交换通量。红色箭头(和相关数字)表示2000-2009年期间由于人为活动而产生的年通量变化。它们代表了自1750年以来碳循环的变化。水库中的红色数字代表自1750年至2011年工业时期开始以来人为碳的累积变化。50px 材料复制自这个来源,可以在知识共享署名4.0国际许可证下获得。
{{clear}}
==Compartments==
==Compartments==
= = 分隔 = =
===Biosphere===
[[File:Role of marine organisms in biogeochemical cycling.jpg|thumb|upright=2.1| {{center|Role of marine organisms in biogeochemical cycling in the Southern Ocean{{hsp}}<ref name=Henley2020>{{cite journal |title = Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications|year = 2020|doi = 10.3389/fmars.2020.00581|doi-access = free|last1 = Henley|first1 = Sian F.|last2 = Cavan|first2 = Emma L.|last3 = Fawcett|first3 = Sarah E.|last4 = Kerr|first4 = Rodrigo|last5 = Monteiro|first5 = Thiago|last6 = Sherrell|first6 = Robert M.|last7 = Bowie|first7 = Andrew R.|last8 = Boyd|first8 = Philip W.|last9 = Barnes|first9 = David K. A.|last10 = Schloss|first10 = Irene R.|last11 = Marshall|first11 = Tanya|last12 = Flynn|first12 = Raquel|last13 = Smith|first13 = Shantelle|journal = Frontiers in Marine Science|volume = 7}} [[File:CC-BY icon.svg|50px]] Material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License] {{Webarchive|url=https://web.archive.org/web/20171016050101/https://creativecommons.org/licenses/by/4.0/ |date=2017-10-16 }}.</ref>}}]]
{{main|Biosphere}}
[[File:Oxygen Cycle.jpg|thumb| {{center|[[Oxygen cycle]]}}]]
Microorganisms drive much of the biogeochemical cycling in the earth system.<ref>{{cite journal |title = The Microbial Engines That Drive Earth's Biogeochemical Cycles|year = 2008|doi = 10.1126/science.1153213|last1 = Falkowski|first1 = P. G.|last2 = Fenchel|first2 = T.|last3 = Delong|first3 = E. F.|journal = Science|volume = 320|issue = 5879|pages = 1034–1039|pmid = 18497287|bibcode = 2008Sci...320.1034F|s2cid = 2844984}}</ref><ref name=Zakem2020>{{cite journal |title = Redox-informed models of global biogeochemical cycles|year = 2020|doi = 10.1038/s41467-020-19454-w|last1 = Zakem|first1 = Emily J.|last2 = Polz|first2 = Martin F.|last3 = Follows|first3 = Michael J.|journal = Nature Communications|volume = 11|issue = 1|page = 5680|pmid = 33173062|pmc = 7656242|bibcode = 2020NatCo..11.5680Z}} [[File:CC-BY icon.svg|50px]] Material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License] {{Webarchive|url=https://web.archive.org/web/20171016050101/https://creativecommons.org/licenses/by/4.0/ |date=2017-10-16 }}.</ref>
Microorganisms drive much of the biogeochemical cycling in the earth system. 50px Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License .
微生物是地球系统生物地球化学循环的主要驱动力。50px 材料复制自这个来源,可以在知识共享署名4.0国际许可证下获得。
===Atmosphere===
{{main|Atmosphere}}
===Hydrosphere===
{{main|Hydrosphere}}
The global ocean covers more than 70% of the Earth's surface and is remarkably heterogeneous. Marine productive areas, and coastal ecosystems comprise a minor fraction of the ocean in terms of surface area, yet have an enormous impact on global biogeochemical cycles carried out by microbial communities, which represent 90% of the ocean's biomass.<ref>{{cite journal |doi = 10.1007/s12526-011-0084-1|title = The Census of Marine Life—evolution of worldwide marine biodiversity research|year = 2011|last1 = Alexander|first1 = Vera|last2 = Miloslavich|first2 = Patricia|last3 = Yarincik|first3 = Kristen|journal = Marine Biodiversity|volume = 41|issue = 4|pages = 545–554|s2cid = 25888475}}</ref> Work in recent years has largely focused on cycling of carbon and macronutrients such as nitrogen, phosphorus, and silicate: other important elements such as sulfur or trace elements have been less studied, reflecting associated technical and logistical issues.<ref name=Murillo2019 /> Increasingly, these marine areas, and the taxa that form their ecosystems, are subject to significant anthropogenic pressure, impacting marine life and recycling of energy and nutrients.<ref>Galton, D. (1884) [https://www.proquest.com/openview/792c496cb0a1bdf11778db87c126ff44/1?pq-origsite=gscholar&cbl=1816417 10th Meeting: report of the royal commission on metropolitan sewage] {{Webarchive|url=https://web.archive.org/web/20210924063154/https://www.proquest.com/openview/792c496cb0a1bdf11778db87c126ff44/1?pq-origsite=gscholar&cbl=1816417 |date=2021-09-24 }}. ''J. Soc. Arts'', '''33''': 290.</ref><ref>{{cite journal |doi = 10.2307/1294478|jstor = 1294478|last1 = Hasler|first1 = Arthur D.|title = Cultural Eutrophication is Reversible|journal = BioScience|year = 1969|volume = 19|issue = 5|pages = 425–431}}</ref><ref>{{cite journal |doi = 10.1002/2016GB005586|title = A reevaluation of the magnitude and impacts of anthropogenic atmospheric nitrogen inputs on the ocean|year = 2017|last1 = Jickells|first1 = T. D.|last2 = Buitenhuis|first2 = E.|last3 = Altieri|first3 = K.|last4 = Baker|first4 = A. R.|last5 = Capone|first5 = D.|last6 = Duce|first6 = R. A.|last7 = Dentener|first7 = F.|last8 = Fennel|first8 = K.|last9 = Kanakidou|first9 = M.|last10 = Laroche|first10 = J.|last11 = Lee|first11 = K.|last12 = Liss|first12 = P.|last13 = Middelburg|first13 = J. J.|last14 = Moore|first14 = J. K.|last15 = Okin|first15 = G.|last16 = Oschlies|first16 = A.|last17 = Sarin|first17 = M.|last18 = Seitzinger|first18 = S.|last19 = Sharples|first19 = J.|last20 = Singh|first20 = A.|last21 = Suntharalingam|first21 = P.|last22 = Uematsu|first22 = M.|last23 = Zamora|first23 = L. M.|journal = Global Biogeochemical Cycles|volume = 31|issue = 2|page = 289|bibcode = 2017GBioC..31..289J|hdl = 1874/348077}}</ref> A key example is that of [[cultural eutrophication]], where [[agricultural runoff]] leads to nitrogen and phosphorus enrichment of coastal ecosystems, greatly increasing productivity resulting in [[algal bloom]]s, [[Ocean deoxygenation|deoxygenation]] of the water column and seabed, and increased greenhouse gas emissions,<ref name=Bouwman2005>{{cite journal |doi = 10.1029/2004GB002314|title = Exploring changes in river nitrogen export to the world's oceans|year = 2005|last1 = Bouwman|first1 = A. F.|last2 = Van Drecht|first2 = G.|last3 = Knoop|first3 = J. M.|last4 = Beusen|first4 = A. H. W.|last5 = Meinardi|first5 = C. R.|journal = Global Biogeochemical Cycles|volume = 19|issue = 1|bibcode = 2005GBioC..19.1002B}}</ref> with direct local and global impacts on [[nitrogen cycle|nitrogen]] and [[carbon cycle]]s. However, the runoff of [[organic matter]] from the mainland to [[coastal ecosystem]]s is just one of a series of pressing threats stressing microbial communities due to global change. Climate change has also resulted in changes in the [[cryosphere]], as glaciers and permafrost melt, resulting in intensified [[Stratification (water)|marine stratification]], while shifts of the [[redox|redox-state]] in different biomes are rapidly reshaping [[microbial assemblage]]s at an unprecedented rate.<ref>{{cite journal |doi = 10.1111/gcb.12754|title = Climate change and dead zones|year = 2015|last1 = Altieri|first1 = Andrew H.|last2 = Gedan|first2 = Keryn B.|journal = Global Change Biology|volume = 21|issue = 4|pages = 1395–1406|pmid = 25385668|bibcode = 2015GCBio..21.1395A}}</ref><ref name=Breitburg2018>{{cite journal |doi = 10.1126/science.aam7240|title = Declining oxygen in the global ocean and coastal waters|year = 2018|last1 = Breitburg|first1 = Denise|last2 = Levin|first2 = Lisa A.|last3 = Oschlies|first3 = Andreas|last4 = Grégoire|first4 = Marilaure|last5 = Chavez|first5 = Francisco P.|last6 = Conley|first6 = Daniel J.|last7 = Garçon|first7 = Véronique|last8 = Gilbert|first8 = Denis|last9 = Gutiérrez|first9 = Dimitri|last10 = Isensee|first10 = Kirsten|last11 = Jacinto|first11 = Gil S.|last12 = Limburg|first12 = Karin E.|last13 = Montes|first13 = Ivonne|last14 = Naqvi|first14 = S. W. A.|last15 = Pitcher|first15 = Grant C.|last16 = Rabalais|first16 = Nancy N.|last17 = Roman|first17 = Michael R.|last18 = Rose|first18 = Kenneth A.|last19 = Seibel|first19 = Brad A.|last20 = Telszewski|first20 = Maciej|last21 = Yasuhara|first21 = Moriaki|last22 = Zhang|first22 = Jing|journal = Science|volume = 359|issue = 6371|pages = eaam7240|pmid = 29301986|bibcode = 2018Sci...359M7240B|s2cid = 206657115}}</ref><ref name=Cavicchioli2019>{{cite journal |doi = 10.1038/s41579-019-0222-5|title = Scientists' warning to humanity: Microorganisms and climate change|year = 2019|last1 = Cavicchioli|first1 = Ricardo|last2 = Ripple|first2 = William J.|last3 = Timmis|first3 = Kenneth N.|last4 = Azam|first4 = Farooq|last5 = Bakken|first5 = Lars R.|last6 = Baylis|first6 = Matthew|last7 = Behrenfeld|first7 = Michael J.|last8 = Boetius|first8 = Antje|last9 = Boyd|first9 = Philip W.|last10 = Classen|first10 = Aimée T.|last11 = Crowther|first11 = Thomas W.|last12 = Danovaro|first12 = Roberto|last13 = Foreman|first13 = Christine M.|last14 = Huisman|first14 = Jef|last15 = Hutchins|first15 = David A.|last16 = Jansson|first16 = Janet K.|last17 = Karl|first17 = David M.|last18 = Koskella|first18 = Britt|last19 = Mark Welch|first19 = David B.|last20 = Martiny|first20 = Jennifer B. H.|last21 = Moran|first21 = Mary Ann|last22 = Orphan|first22 = Victoria J.|last23 = Reay|first23 = David S.|last24 = Remais|first24 = Justin V.|last25 = Rich|first25 = Virginia I.|last26 = Singh|first26 = Brajesh K.|last27 = Stein|first27 = Lisa Y.|last28 = Stewart|first28 = Frank J.|last29 = Sullivan|first29 = Matthew B.|last30 = Van Oppen|first30 = Madeleine J. H.|journal = Nature Reviews Microbiology|volume = 17|issue = 9|pages = 569–586|pmid = 31213707|pmc = 7136171|display-authors = 1}}</ref><ref name=Hutchins2019>{{cite journal |doi = 10.1038/s41579-019-0178-5|title = Climate change microbiology — problems and perspectives|year = 2019|last1 = Hutchins|first1 = David A.|last2 = Jansson|first2 = Janet K.|last3 = Remais|first3 = Justin V.|last4 = Rich|first4 = Virginia I.|last5 = Singh|first5 = Brajesh K.|last6 = Trivedi|first6 = Pankaj|journal = Nature Reviews Microbiology|volume = 17|issue = 6|pages = 391–396|pmid = 31092905|s2cid = 155102440}}</ref><ref name=Murillo2019>{{cite journal |doi = 10.3389/fmars.2019.00657|doi-access = free|title = Editorial: Marine Microbiome and Biogeochemical Cycles in Marine Productive Areas|year = 2019|last1 = Murillo|first1 = Alejandro A.|last2 = Molina|first2 = Verónica|last3 = Salcedo-Castro|first3 = Julio|last4 = Harrod|first4 = Chris|journal = Frontiers in Marine Science|volume = 6}} [[File:CC-BY icon.svg|50px]] Material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License] {{Webarchive|url=https://web.archive.org/web/20171016050101/https://creativecommons.org/licenses/by/4.0/ |date=2017-10-16 }}.</ref>
The global ocean covers more than 70% of the Earth's surface and is remarkably heterogeneous. Marine productive areas, and coastal ecosystems comprise a minor fraction of the ocean in terms of surface area, yet have an enormous impact on global biogeochemical cycles carried out by microbial communities, which represent 90% of the ocean's biomass. Work in recent years has largely focused on cycling of carbon and macronutrients such as nitrogen, phosphorus, and silicate: other important elements such as sulfur or trace elements have been less studied, reflecting associated technical and logistical issues. Increasingly, these marine areas, and the taxa that form their ecosystems, are subject to significant anthropogenic pressure, impacting marine life and recycling of energy and nutrients.Galton, D. (1884) 10th Meeting: report of the royal commission on metropolitan sewage . J. Soc. Arts, 33: 290. A key example is that of cultural eutrophication, where agricultural runoff leads to nitrogen and phosphorus enrichment of coastal ecosystems, greatly increasing productivity resulting in algal blooms, deoxygenation of the water column and seabed, and increased greenhouse gas emissions, with direct local and global impacts on nitrogen and carbon cycles. However, the runoff of organic matter from the mainland to coastal ecosystems is just one of a series of pressing threats stressing microbial communities due to global change. Climate change has also resulted in changes in the cryosphere, as glaciers and permafrost melt, resulting in intensified marine stratification, while shifts of the redox-state in different biomes are rapidly reshaping microbial assemblages at an unprecedented rate. 50px Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License .
全球海洋覆盖了地球表面的70% 以上,而且非常不均匀。海洋生产区和沿海生态系统只占海洋表面积的一小部分,但却对微生物群落执行的全球生物地球化学循环产生巨大影响,微生物群落占海洋生物量的90% 。近年来的工作主要集中在碳和大量营养元素的循环,如氮、磷和硅酸盐: 其他重要元素,如硫和微量元素的研究较少,反映了相关的技术和后勤问题。这些海域以及形成其生态系统的分类群正日益受到人类活动的巨大压力,影响着海洋生物以及能量和营养物质的循环。高尔顿(1884)第十次会议: 皇家污水处理委员会报告。J. Soc.33:290.一个关键的例子是文化富营养化,农业径流导致沿海生态系统的氮和磷富集,大大提高生产力,造成藻类大量繁殖,水体和海床脱氧,温室气体排放增加,对氮和碳循环产生直接的地方和全球影响。然而,有机物从大陆流入沿海生态系统只是全球变化对微生物群落造成的一系列紧迫威胁之一。气候变化还导致冰冻圈的变化,冰川和永久冻土融化,加剧了海洋分层,而不同生物群中的氧化还原状态的变化正在以前所未有的速度迅速重塑微生物群落。50px 材料复制自这个来源,可以在知识共享署名4.0国际许可证下获得。
Global change is, therefore, affecting key processes including [[Marine primary production|primary productivity]], CO<sub>2</sub> and N<sub>2</sub> fixation, organic matter respiration/[[remineralization]], and the sinking and burial deposition of fixed CO<sub>2</sub>.<ref name=Hutchins2019 /> In addition to this, oceans are experiencing an [[Ocean acidification|acidification process]], with a change of ~0.1 [[pH]] units between the pre-industrial period and today, affecting [[carbonate]]/[[bicarbonate]] [[Buffering agent|buffer]] chemistry. In turn, acidification has been reported to impact [[planktonic]] communities, principally through effects on calcifying taxa.<ref>{{cite journal |doi = 10.1242/jeb.115584|title = Biochemical adaptation to ocean acidification|year = 2015|last1 = Stillman|first1 = Jonathon H.|last2 = Paganini|first2 = Adam W.|journal = Journal of Experimental Biology|volume = 218|issue = 12|pages = 1946–1955|pmid = 26085671|s2cid = 13071345}}</ref> There is also evidence for shifts in the production of key intermediary volatile products, some of which have marked greenhouse effects (e.g., N<sub>2</sub>O and CH<sub>4</sub>, reviewed by Breitburg in 2018,<ref name=Breitburg2018 /> due to the increase in global temperature, ocean stratification and deoxygenation, driving as much as 25 to 50% of nitrogen loss from the ocean to the atmosphere in the so-called [[oxygen minimum zone]]s{{hsp}}<ref>{{cite journal |doi = 10.1038/s41579-018-0087-z|title = Microbial niches in marine oxygen minimum zones|year = 2018|last1 = Bertagnolli|first1 = Anthony D.|last2 = Stewart|first2 = Frank J.|journal = Nature Reviews Microbiology|volume = 16|issue = 12|pages = 723–729|pmid = 30250271|s2cid = 52811177}}</ref> or [[Anoxic waters|anoxic]] marine zones,<ref>{{cite journal |doi = 10.1073/pnas.1205009109|title = Microbial oceanography of anoxic oxygen minimum zones|year = 2012|last1 = Ulloa|first1 = O.|last2 = Canfield|first2 = D. E.|last3 = Delong|first3 = E. F.|last4 = Letelier|first4 = R. M.|last5 = Stewart|first5 = F. J.|journal = Proceedings of the National Academy of Sciences|volume = 109|issue = 40|pages = 15996–16003|pmid = 22967509|pmc = 3479542|bibcode = 2012PNAS..10915996U|s2cid = 6630698|doi-access = free}}</ref> driven by microbial processes. Other products, that are typically toxic for the marine [[nekton]], including reduced sulfur species such as H<sub>2</sub>S, have a negative impact for marine resources like fisheries and coastal aquaculture. While global change has accelerated, there has been a parallel increase in awareness of the complexity of marine ecosystems, and especially the fundamental role of microbes as drivers of ecosystem functioning.<ref name=Cavicchioli2019 /><ref name=Murillo2019 />
Global change is, therefore, affecting key processes including primary productivity, CO2 and N2 fixation, organic matter respiration/remineralization, and the sinking and burial deposition of fixed CO2. In addition to this, oceans are experiencing an acidification process, with a change of ~0.1 pH units between the pre-industrial period and today, affecting carbonate/bicarbonate buffer chemistry. In turn, acidification has been reported to impact planktonic communities, principally through effects on calcifying taxa. There is also evidence for shifts in the production of key intermediary volatile products, some of which have marked greenhouse effects (e.g., N2O and CH4, reviewed by Breitburg in 2018, due to the increase in global temperature, ocean stratification and deoxygenation, driving as much as 25 to 50% of nitrogen loss from the ocean to the atmosphere in the so-called oxygen minimum zones or anoxic marine zones, driven by microbial processes. Other products, that are typically toxic for the marine nekton, including reduced sulfur species such as H2S, have a negative impact for marine resources like fisheries and coastal aquaculture. While global change has accelerated, there has been a parallel increase in awareness of the complexity of marine ecosystems, and especially the fundamental role of microbes as drivers of ecosystem functioning.
因此,全球变化影响着关键过程,包括初级生产力、 co2和 n2的固定、有机物呼吸/再矿化以及固定 co2的沉积和埋藏。此外,海洋正在经历酸化过程,从工业化前到今天,pH 值变化为0.1,影响碳酸盐/重碳酸盐缓冲化学。据报道,酸化反过来影响浮游生物群落,主要是通过对钙化类群的影响。还有证据表明,关键的中间挥发性产品的生产发生了变化,其中一些产品具有明显的温室效应(例如,由于全球温度升高、海洋分层和脱氧,在微生物过程驱动的所谓最低含氧区或缺氧海洋区,导致多达25% 至50% 的氮从海洋流失到大气中。其他产品,包括硫磺物种的减少,如 H2S,对海洋资源如渔业和沿海水产养殖产生负面影响。虽然全球变化加速,但人们对海洋生态系统的复杂性,特别是微生物作为生态系统运作的驱动者的根本作用的认识也同时提高。
===Lithosphere===
{{main|Lithosphere}}
==Fast and slow cycles==
There are fast and slow biogeochemical cycles. Fast cycle operate in the [[biosphere]] and slow cycles operate in [[rock (geology)|rocks]]. Fast or biological cycles can complete within years, moving substances from atmosphere to biosphere, then back to the atmosphere. Slow or geological cycles can take millions of years to complete, moving substances through the Earth's [[Earth's crust|crust]] between rocks, soil, ocean and atmosphere.<ref name=Libes2015>Libes, Susan M. (2015). [https://books.google.com/books?hl=en&lr=&id=5tC9CgAAQBAJ&oi=fnd&pg=PA89&dq=%22blue+planet%22+libes&ots=oesDSXq1NZ&sig=B7HrLG0Y6iE9p_AqfDfSVktQGN4#v=onepage&q=%22blue%20planet%22%20libes&f=false Blue planet: The role of the oceans in nutrient cycling, maintain the atmosphere system, and modulating climate change] {{Webarchive|url=https://web.archive.org/web/20210120070507/https://books.google.com/books?hl=en&lr=&id=5tC9CgAAQBAJ&oi=fnd&pg=PA89&dq=%22blue+planet%22+libes&ots=oesDSXq1NZ&sig=B7HrLG0Y6iE9p_AqfDfSVktQGN4#v=onepage&q=%22blue%20planet%22%20libes&f=false |date=2021-01-20 }} In: ''Routledge Handbook of Ocean Resources and Management'', Routledge, pages 89–107. {{isbn|9781136294822}}.</ref>
There are fast and slow biogeochemical cycles. Fast cycle operate in the biosphere and slow cycles operate in rocks. Fast or biological cycles can complete within years, moving substances from atmosphere to biosphere, then back to the atmosphere. Slow or geological cycles can take millions of years to complete, moving substances through the Earth's crust between rocks, soil, ocean and atmosphere.Libes, Susan M. (2015). Blue planet: The role of the oceans in nutrient cycling, maintain the atmosphere system, and modulating climate change In: Routledge Handbook of Ocean Resources and Management, Routledge, pages 89–107. .
有快速和慢速的生物地球化学循环。快速循环在生物圈中运行,慢速循环在岩石中运行。快速或生物周期可以在年内完成,将物质从大气层转移到生物圈,然后返回大气层。缓慢或地质周期可能需要数百万年才能完成,在岩石、土壤、海洋和大气之间穿过地壳的物质移动。苏珊 · m · 利贝斯(Susan m.)(2015)。《蓝色星球: 海洋在营养循环、维持大气系统和调节气候变化中的作用》 ,载于《路特雷奇海洋资源和管理手册》 ,路特雷奇,第89-107页。.
As an example, the fast carbon cycle is illustrated in the diagram below on the left. This cycle involves relatively short-term [[biogeochemical]] processes between the environment and living organisms in the biosphere. It includes movements of carbon between the atmosphere and terrestrial and marine ecosystems, as well as soils and [[seafloor sediments]]. The fast cycle includes annual cycles involving photosynthesis and decadal cycles involving vegetative growth and decomposition. The reactions of the fast carbon cycle to human activities will determine many of the more immediate impacts of climate change.<ref name=Bush2020 /><ref>{{cite journal |doi = 10.1073/pnas.022055499|title = Atmospheric carbon dioxide levels for the last 500 million years|year = 2002|last1 = Rothman|first1 = D. H.|journal = Proceedings of the National Academy of Sciences|volume = 99|issue = 7|pages = 4167–4171|pmid = 11904360|pmc = 123620|bibcode = 2002PNAS...99.4167R|doi-access = free}}</ref><ref name=Carpinteri2019>{{cite journal |doi = 10.3390/sci1010017|title = Correlation between the Fluctuations in Worldwide Seismicity and Atmospheric Carbon Pollution|year = 2019|last1 = Carpinteri|first1 = Alberto|last2 = Niccolini|first2 = Gianni|journal = Sci|volume = 1|page = 17|doi-access = free}} [[File:CC-BY icon.svg|50px]] Material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License] {{Webarchive|url=https://web.archive.org/web/20171016050101/https://creativecommons.org/licenses/by/4.0/ |date=2017-10-16 }}.</ref><ref>{{Cite journal|last=Rothman|first=Daniel|date=January 2015|title=Earth's carbon cycle: A mathematical perspective|url=https://www.ams.org/bull/2015-52-01/S0273-0979-2014-01471-5/|journal=Bulletin of the American Mathematical Society|language=en|volume=52|issue=1|pages=47–64|doi=10.1090/S0273-0979-2014-01471-5|issn=0273-0979|hdl=1721.1/97900|hdl-access=free|access-date=2021-09-27|archive-date=2021-11-22|archive-url=https://web.archive.org/web/20211122221018/https://www.ams.org/journals/bull/2015-52-01/S0273-0979-2014-01471-5/|url-status=live}}</ref>
As an example, the fast carbon cycle is illustrated in the diagram below on the left. This cycle involves relatively short-term biogeochemical processes between the environment and living organisms in the biosphere. It includes movements of carbon between the atmosphere and terrestrial and marine ecosystems, as well as soils and seafloor sediments. The fast cycle includes annual cycles involving photosynthesis and decadal cycles involving vegetative growth and decomposition. The reactions of the fast carbon cycle to human activities will determine many of the more immediate impacts of climate change. 50px Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License .
作为一个例子,快速的碳循环如下图所示。这一循环涉及环境与生物圈中的生物有机体之间相对短期的生物地球化学过程。它包括碳在大气层与陆地和海洋生态系统以及土壤和海底沉积物之间的移动。快速循环包括光合作用和年代际循环,包括营养生长和分解。快速碳循环对人类活动的反应将决定气候变化的许多更直接的影响。50px 材料复制自这个来源,可以在知识共享署名4.0国际许可证下获得。
[[File:Carbon cycle.jpg|thumb|upright=1.8|left| The fast cycle operates through the biosphere, including exchanges between land, atmosphere, and oceans. The yellow numbers are natural fluxes of carbon in billions of tons (gigatons) per year. Red are human contributions and white are stored carbon.<ref name="nasacc">{{cite web|last1=Riebeek|first1=Holli|title=The Carbon Cycle|url=http://earthobservatory.nasa.gov/Features/CarbonCycle/?src=eoa-features|website=Earth Observatory|publisher=NASA|access-date=5 April 2018|date=16 June 2011|archive-url=https://web.archive.org/web/20160305010126/http://earthobservatory.nasa.gov/Features/CarbonCycle/?src=eoa-features|archive-date=5 March 2016|url-status=live|df=dmy-all}}</ref>]]
thumb|upright=1.8|left| The fast cycle operates through the biosphere, including exchanges between land, atmosphere, and oceans. The yellow numbers are natural fluxes of carbon in billions of tons (gigatons) per year. Red are human contributions and white are stored carbon.
快速循环在生物圈中运行,包括陆地、大气层和海洋之间的交换。黄色数字是每年数十亿吨碳的自然通量。红色是人类的贡献,白色是储存的碳。
[[File:Rock cycle nps.PNG|thumb|upright=2.25|right| {{center|The slow cycle operates through rocks, including volcanic and tectonic activity}}]]
thumb|upright=2.25|right|
2.25
{{clear}}
The slow cycle is illustrated in the diagram above on the right. It involves medium to long-term [[geochemical]] processes belonging to the [[rock cycle]]. The exchange between the ocean and atmosphere can take centuries, and the [[weathering]] of rocks can take millions of years. Carbon in the ocean precipitates to the ocean floor where it can form [[sedimentary rock]] and be [[subducted]] into the [[earth's mantle]]. [[Mountain building]] processes result in the return of this geologic carbon to the Earth's surface. There the rocks are weathered and carbon is returned to the atmosphere by [[degassing]] and to the ocean by rivers. Other geologic carbon returns to the ocean through the [[Hydrothermal circulation|hydrothermal emission]] of calcium ions. In a given year between 10 and 100 million tonnes of carbon moves around this slow cycle. This includes volcanoes returning geologic carbon directly to the atmosphere in the form of carbon dioxide. However, this is less than one percent of the carbon dioxide put into the atmosphere by burning fossil fuels.<ref name=Libes2015 /><ref name=Bush2020>{{cite book|doi = 10.1007/978-3-030-15424-0_3|url = https://books.google.com/books?id=h_60DwAAQBAJ&q=%22Climate+Change+and+Renewable+Energy%22+%22The+Carbon+Cycle%22chapter+%3D+The+Carbon+Cycle&pg=PA109|title = Climate Change and Renewable Energy|year = 2020|last1 = Bush|first1 = Martin J.|pages = 109–141|isbn = 978-3-030-15423-3|s2cid = 210305910|access-date = 2021-09-27|archive-date = 2021-09-27|archive-url = https://web.archive.org/web/20210927001642/https://books.google.com/books?id=h_60DwAAQBAJ&q=%22Climate+Change+and+Renewable+Energy%22+%22The+Carbon+Cycle%22chapter+%3D+The+Carbon+Cycle&pg=PA109|url-status = live}}</ref>
The slow cycle is illustrated in the diagram above on the right. It involves medium to long-term geochemical processes belonging to the rock cycle. The exchange between the ocean and atmosphere can take centuries, and the weathering of rocks can take millions of years. Carbon in the ocean precipitates to the ocean floor where it can form sedimentary rock and be subducted into the earth's mantle. Mountain building processes result in the return of this geologic carbon to the Earth's surface. There the rocks are weathered and carbon is returned to the atmosphere by degassing and to the ocean by rivers. Other geologic carbon returns to the ocean through the hydrothermal emission of calcium ions. In a given year between 10 and 100 million tonnes of carbon moves around this slow cycle. This includes volcanoes returning geologic carbon directly to the atmosphere in the form of carbon dioxide. However, this is less than one percent of the carbon dioxide put into the atmosphere by burning fossil fuels.
缓慢的循环在上面右边的图表中显示出来。它涉及中长期的地球化学过程,属于岩石旋回。海洋和大气之间的交换可能需要几个世纪,岩石的风化可能需要几百万年。海洋中的碳沉淀到海底,在那里它可以形成沉积岩并潜入地幔。造山过程导致这种地质碳返回到地球表面。在那里,岩石被风化,碳通过排气返回大气层,通过河流流入海洋。其他地质碳通过钙离子的水热释放返回海洋。在给定的一年中,1000万到1亿吨的碳在这个缓慢的循环周期中移动。这包括火山以二氧化碳的形式将地质碳直接返回大气层。然而,这还不到燃烧化石燃料排放到大气中的二氧化碳的百分之一。
==Deep cycles==
{{further|Deep carbon cycle}}
The terrestrial subsurface is the largest reservoir of carbon on earth, containing 14–135 [[Orders of magnitude (mass)|Pg]] of carbon{{hsp}}<ref>{{cite journal |doi = 10.1111/1574-6941.12196|title = Weighing the deep continental biosphere|year = 2014|last1 = McMahon|first1 = Sean|last2 = Parnell|first2 = John|journal = FEMS Microbiology Ecology|volume = 87|issue = 1|pages = 113–120|pmid = 23991863}}</ref> and 2–19% of all biomass.<ref>{{cite journal |doi = 10.1073/pnas.1203849109|title = Global distribution of microbial abundance and biomass in subseafloor sediment|year = 2012|last1 = Kallmeyer|first1 = J.|last2 = Pockalny|first2 = R.|last3 = Adhikari|first3 = R. R.|last4 = Smith|first4 = D. C.|last5 = d'Hondt|first5 = S.|journal = Proceedings of the National Academy of Sciences|volume = 109|issue = 40|pages = 16213–16216|pmid = 22927371|pmc = 3479597|doi-access = free}}</ref> Microorganisms drive organic and inorganic compound transformations in this environment and thereby control biogeochemical cycles. Current knowledge of the microbial ecology of the subsurface is primarily based on [[16S ribosomal RNA]] (rRNA) gene sequences. Recent estimates show that <8% of 16S rRNA sequences in public databases derive from subsurface organisms{{hsp}}<ref>{{cite journal |doi = 10.1128/mBio.00201-16|title = Status of the Archaeal and Bacterial Census: An Update|year = 2016|last1 = Schloss|first1 = Patrick D.|last2 = Girard|first2 = Rene A.|last3 = Martin|first3 = Thomas|last4 = Edwards|first4 = Joshua|last5 = Thrash|first5 = J. Cameron|journal = mBio|volume = 7|issue = 3|pmid = 27190214|pmc = 4895100}}</ref> and only a small fraction of those are represented by genomes or isolates. Thus, there is remarkably little reliable information about microbial metabolism in the subsurface. Further, little is known about how organisms in subsurface ecosystems are metabolically interconnected. Some cultivation-based studies of [[syntrophic]] [[microbial consortia|consortia]]{{hsp}}<ref>{{cite journal |doi = 10.1093/femsre/fuw019|title = Decoding molecular interactions in microbial communities|year = 2016|last1 = Abreu|first1 = Nicole A.|last2 = Taga|first2 = Michiko E.|journal = FEMS Microbiology Reviews|volume = 40|issue = 5|pages = 648–663|pmid = 27417261|pmc = 5007284}}</ref><ref>{{cite journal |doi = 10.1186/s13040-015-0054-4|title = Interaction networks for identifying coupled molecular processes in microbial communities|year = 2015|last1 = Bosse|first1 = Magnus|last2 = Heuwieser|first2 = Alexander|last3 = Heinzel|first3 = Andreas|last4 = Nancucheo|first4 = Ivan|last5 = Melo Barbosa Dall'Agnol|first5 = Hivana|last6 = Lukas|first6 = Arno|last7 = Tzotzos|first7 = George|last8 = Mayer|first8 = Bernd|journal = BioData Mining|volume = 8|page = 21|pmid = 26180552|pmc = 4502522}}</ref><ref>{{cite journal |doi = 10.1111/j.1574-6941.2011.01237.x|title = Genetic characterization of denitrifier communities with contrasting intrinsic functional traits|year = 2012|last1 = Braker|first1 = Gesche|last2 = Dörsch|first2 = Peter|last3 = Bakken|first3 = Lars R.|journal = FEMS Microbiology Ecology|volume = 79|issue = 2|pages = 542–554|pmid = 22092293}}</ref> and small-scale metagenomic analyses of natural communities{{hsp}}<ref name=Hug2015>{{cite journal|doi = 10.1111/1462-2920.12930|title = Critical biogeochemical functions in the subsurface are associated with bacteria from new phyla and little studied lineages|year = 2016|last1 = Hug|first1 = Laura A.|last2 = Thomas|first2 = Brian C.|last3 = Sharon|first3 = Itai|last4 = Brown|first4 = Christopher T.|last5 = Sharma|first5 = Ritin|last6 = Hettich|first6 = Robert L.|last7 = Wilkins|first7 = Michael J.|last8 = Williams|first8 = Kenneth H.|last9 = Singh|first9 = Andrea|last10 = Banfield|first10 = Jillian F.|journal = Environmental Microbiology|volume = 18|issue = 1|pages = 159–173|pmid = 26033198|url = https://escholarship.org/uc/item/2f1480x2|access-date = 2021-09-27|archive-date = 2021-09-27|archive-url = https://web.archive.org/web/20210927050621/https://escholarship.org/uc/item/2f1480x2|url-status = live}}</ref><ref>{{cite journal |doi = 10.1073/pnas.1010732107|title = Microbial community transcriptomes reveal microbes and metabolic pathways associated with dissolved organic matter turnover in the sea|year = 2010|last1 = McCarren|first1 = J.|last2 = Becker|first2 = J. W.|last3 = Repeta|first3 = D. J.|last4 = Shi|first4 = Y.|last5 = Young|first5 = C. R.|last6 = Malmstrom|first6 = R. R.|last7 = Chisholm|first7 = S. W.|last8 = Delong|first8 = E. F.|journal = Proceedings of the National Academy of Sciences|volume = 107|issue = 38|pages = 16420–16427|pmid = 20807744|pmc = 2944720|doi-access = free}}</ref><ref>{{cite journal |doi = 10.1073/pnas.1506034112|title = Networks of energetic and metabolic interactions define dynamics in microbial communities|year = 2015|last1 = Embree|first1 = Mallory|last2 = Liu|first2 = Joanne K.|last3 = Al-Bassam|first3 = Mahmoud M.|last4 = Zengler|first4 = Karsten|journal = Proceedings of the National Academy of Sciences|volume = 112|issue = 50|pages = 15450–15455|pmid = 26621749|pmc = 4687543|bibcode = 2015PNAS..11215450E|doi-access = free}}</ref> suggest that organisms are linked via metabolic handoffs: the transfer of redox reaction products of one organism to another. However, no complex environments have been dissected completely enough to resolve the metabolic interaction networks that underpin them. This restricts the ability of biogeochemical models to capture key aspects of the carbon and other nutrient cycles.<ref>{{cite journal |doi = 10.1016/j.tim.2016.04.006|title = Microbial Metagenomics Reveals Climate-Relevant Subsurface Biogeochemical Processes|year = 2016|last1 = Long|first1 = Philip E.|last2 = Williams|first2 = Kenneth H.|last3 = Hubbard|first3 = Susan S.|last4 = Banfield|first4 = Jillian F.|journal = Trends in Microbiology|volume = 24|issue = 8|pages = 600–610|pmid = 27156744}}</ref> New approaches such as genome-resolved metagenomics, an approach that can yield a comprehensive set of draft and even complete genomes for organisms without the requirement for laboratory isolation{{hsp}}<ref name=Hug2015 /><ref>{{cite journal |doi = 10.7717/peerj.1319|title = Anvi'o: An advanced analysis and visualization platform for 'omics data|year = 2015|last1 = Eren|first1 = A. Murat|last2 = Esen|first2 = Özcan C.|last3 = Quince|first3 = Christopher|last4 = Vineis|first4 = Joseph H.|last5 = Morrison|first5 = Hilary G.|last6 = Sogin|first6 = Mitchell L.|last7 = Delmont|first7 = Tom O.|journal = PeerJ|volume = 3|pages = e1319|pmid = 26500826|pmc = 4614810}}</ref><ref>{{cite journal |doi = 10.1038/nmeth.3103|title = Binning metagenomic contigs by coverage and composition|year = 2014|last1 = Alneberg|first1 = Johannes|last2 = Bjarnason|first2 = Brynjar Smári|last3 = De Bruijn|first3 = Ino|last4 = Schirmer|first4 = Melanie|last5 = Quick|first5 = Joshua|last6 = Ijaz|first6 = Umer Z.|last7 = Lahti|first7 = Leo|last8 = Loman|first8 = Nicholas J.|last9 = Andersson|first9 = Anders F.|last10 = Quince|first10 = Christopher|journal = Nature Methods|volume = 11|issue = 11|pages = 1144–1146|pmid = 25218180|s2cid = 24696869}}</ref> have the potential to provide this critical level of understanding of biogeochemical processes.<ref name=Anantharaman2016>{{cite journal |doi = 10.1038/ncomms13219|title = Thousands of microbial genomes shed light on interconnected biogeochemical processes in an aquifer system|year = 2016|last1 = Anantharaman|first1 = Karthik|last2 = Brown|first2 = Christopher T.|last3 = Hug|first3 = Laura A.|last4 = Sharon|first4 = Itai|last5 = Castelle|first5 = Cindy J.|last6 = Probst|first6 = Alexander J.|last7 = Thomas|first7 = Brian C.|last8 = Singh|first8 = Andrea|last9 = Wilkins|first9 = Michael J.|last10 = Karaoz|first10 = Ulas|last11 = Brodie|first11 = Eoin L.|last12 = Williams|first12 = Kenneth H.|last13 = Hubbard|first13 = Susan S.|last14 = Banfield|first14 = Jillian F.|journal = Nature Communications|volume = 7|page = 13219|pmid = 27774985|pmc = 5079060|bibcode = 2016NatCo...713219A}} [[File:CC-BY icon.svg|50px]] Material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License] {{Webarchive|url=https://web.archive.org/web/20171016050101/https://creativecommons.org/licenses/by/4.0/ |date=2017-10-16 }}.</ref>
The terrestrial subsurface is the largest reservoir of carbon on earth, containing 14–135 Pg of carbon and 2–19% of all biomass. Microorganisms drive organic and inorganic compound transformations in this environment and thereby control biogeochemical cycles. Current knowledge of the microbial ecology of the subsurface is primarily based on 16S ribosomal RNA (rRNA) gene sequences. Recent estimates show that <8% of 16S rRNA sequences in public databases derive from subsurface organisms and only a small fraction of those are represented by genomes or isolates. Thus, there is remarkably little reliable information about microbial metabolism in the subsurface. Further, little is known about how organisms in subsurface ecosystems are metabolically interconnected. Some cultivation-based studies of syntrophic consortia and small-scale metagenomic analyses of natural communities suggest that organisms are linked via metabolic handoffs: the transfer of redox reaction products of one organism to another. However, no complex environments have been dissected completely enough to resolve the metabolic interaction networks that underpin them. This restricts the ability of biogeochemical models to capture key aspects of the carbon and other nutrient cycles. New approaches such as genome-resolved metagenomics, an approach that can yield a comprehensive set of draft and even complete genomes for organisms without the requirement for laboratory isolation have the potential to provide this critical level of understanding of biogeochemical processes. 50px Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License .
陆地地下是地球上最大的碳储存库,含有14-135 Pg 的碳,占所有生物量的2-19% 。微生物在这种环境中推动有机和无机化合物的转变,从而控制生物地球化学循环。目前对地下微生物生态学的了解主要是基于16S 核糖体RNA 基因序列。最近的估计显示,公共数据库中的16s rRNA 序列中,少于8% 来自地下生物,其中只有一小部分由基因组或分离物表示。因此,关于地下微生物代谢的可靠信息非常少。此外,关于地下生态系统中的生物体是如何在新陈代谢上相互关联的,我们知之甚少。一些以培养为基础的联合营养研究和对自然群落的小规模宏基因组学分析表明,生物体之间是通过代谢传递联系起来的: 一种生物体的氧化还原反应产物转移到另一种生物体。然而,还没有一个复杂的环境被彻底剖析,足以解析支撑它们的代谢交互网络。这限制了生物地球化学模型捕捉碳和其他养分循环关键方面的能力。基因组分解宏基因组学等新的方法可以为生物体提供一套全面的草图甚至完整的基因组,而不需要实验室隔离,这种方法有可能提供对生物地球化学过程的这一关键水平的理解。50px 材料复制自这个来源,可以在知识共享署名4.0国际许可证下获得。
==Some examples==
Some of the more well-known biogeochemical cycles are shown below:
Some of the more well-known biogeochemical cycles are shown below:
= = = 一些例子 = = 一些比较著名的生物地球化学循环如下:
<gallery mode=packed style=float:left; heights=140px>
File:Carbon cycle-cute diagram.svg|alt=Diagram of the carbon cycle|[[Carbon cycle]]
File:Nitrogen_Cycle.jpg|alt=Diagram of the nitrogen cycle|[[Nitrogen cycle]]
File:WhalePump.jpg|alt=Diagram of the nutrient cycle|[[Nutrient cycle]]
File:Phosphorus cycle.png|alt=Diagram of the phosphorus cycle|[[Phosphorus cycle]]
File:Sulfur Cycle (Ciclo do Enxofre).png|alt=Diagram of the sulfur cycle|[[Sulfur cycle]]
File:Rockcycle.jpg|alt=Diagram of the rock cycle|[[Rock cycle]]
File:Water cycle.png|alt=Diagram of the water cycle|[[Water cycle]]
</gallery>
File:Carbon cycle-cute diagram.svg|alt=Diagram of the carbon cycle|Carbon cycle
File:Nitrogen_Cycle.jpg|alt=Diagram of the nitrogen cycle|Nitrogen cycle
File:WhalePump.jpg|alt=Diagram of the nutrient cycle|Nutrient cycle
File:Phosphorus cycle.png|alt=Diagram of the phosphorus cycle|Phosphorus cycle
File:Sulfur Cycle (Ciclo do Enxofre).png|alt=Diagram of the sulfur cycle|Sulfur cycle
File:Rockcycle.jpg|alt=Diagram of the rock cycle|Rock cycle
File:Water cycle.png|alt=Diagram of the water cycle|Water cycle
文件: 碳循环-可爱的图解. svg | alt = 碳循环图 | 碳循环文件: 氮循环。氮循环图 | 氮循环文件: whaleump.jpg | alt = 营养循环图 | 营养循环文件: p Cycle.png | alt = 磷循环循环图 | 磷循环循环文件: 硫循环(Ciclo do Enxofre)。硫循环图 | 硫循环图 | 岩石循环图 | 岩石循环图 | 水循环图 | 水循环图
{{clear}}
Many biogeochemical cycles are currently being studied for the first time. [[Climate change]] and human impacts are drastically changing the speed, intensity, and balance of these relatively unknown cycles, which include:
* the [[mercury cycle]],<ref>{{cite web|title=Mercury Cycling in the Environment|url=http://wi.water.usgs.gov/mercury/mercury-cycling.html|website=Wisconsin Water Science Center|publisher=United States Geological Survey|date=10 January 2013|access-date=20 November 2017|archive-date=11 April 2021|archive-url=https://web.archive.org/web/20210411155926/https://wi.water.usgs.gov/mercury/mercury-cycling.html|url-status=live}}</ref> and
* the human-caused cycle of PCBs.<ref>{{cite book |title=Organic contaminants that leave traces : sources, transport and fate |publisher=Ifremer |isbn=9782759200139 |pages=22–23}}</ref>
<gallery mode=packed style=float:left; heights=155px>
File:Plagiomnium affine laminazellen.jpeg|[[Chloroplasts]] conduct [[photosynthesis]] in [[plant cell]]s and other [[eukaryote|eukaryotic]] organisms.
File:Organic carbon cycle including the flow of kerogen.png|[[Kerogen]] cycle{{hsp}}<ref>{{cite journal |doi = 10.1038/nature14400|title = Global carbon export from the terrestrial biosphere controlled by erosion|year = 2015|last1 = Galy|first1 = Valier|last2 = Peucker-Ehrenbrink|first2 = Bernhard|last3 = Eglinton|first3 = Timothy|journal = Nature|volume = 521|issue = 7551|pages = 204–207|pmid = 25971513|bibcode = 2015Natur.521..204G|s2cid = 205243485}}</ref><ref>{{cite journal |doi = 10.1016/S0146-6380(97)00056-9|title = Comparative organic geochemistries of soils and marine sediments|year = 1997|last1 = Hedges|first1 = J.I|last2 = Oades|first2 = J.M|journal = Organic Geochemistry|volume = 27|issue = 7–8|pages = 319–361}}</ref>
File:Coal anthracite.jpg|Coal is a reservoir of carbon
</gallery>
Many biogeochemical cycles are currently being studied for the first time. Climate change and human impacts are drastically changing the speed, intensity, and balance of these relatively unknown cycles, which include:
* the mercury cycle, and
* the human-caused cycle of PCBs.
File:Plagiomnium affine laminazellen.jpeg|Chloroplasts conduct photosynthesis in plant cells and other eukaryotic organisms.
File:Organic carbon cycle including the flow of kerogen.png|Kerogen cycle
File:Coal anthracite.jpg|Coal is a reservoir of carbon
目前许多生物地球化学循环的研究尚属首次。气候变化和人类活动的影响正在极大地改变这些相对未知的循环的速度、强度和平衡,其中包括:
* 汞循环,
* 多氯联苯的人为循环。文件: 寒地走灯藓/叶绿体在植物细胞和其他真核生物中进行光合作用。文件: 有机碳循环包括干酪根的流动
{{clear}}
Biogeochemical cycles always involve active equilibrium states: a balance in the cycling of the element between compartments. However, overall balance may involve compartments distributed on a global scale.
Biogeochemical cycles always involve active equilibrium states: a balance in the cycling of the element between compartments. However, overall balance may involve compartments distributed on a global scale.
生物地球化学循环总是涉及活动平衡状态: 元素在区间循环中的平衡。然而,总体平衡可能涉及在全球范围内分布的部门。
As biogeochemical cycles describe the movements of substances on the entire globe, the study of these is inherently multidisciplinary. The carbon cycle may be related to research in [[ecology]] and [[atmospheric sciences]].<ref>{{cite book|last1=McGuire|first=1A. D.|last2=Lukina|first2=N. V.|chapter=Biogeochemical cycles|editor-last1=Groisman|editor-first1=P.|editor-last2=Bartalev|editor-first2=S. A.|editor-last3=NEESPI Science Plan Development Team|title=Northern Eurasia earth science partnership initiative (NEESPI), Science plan overview|date=2007|pages=215–234|series=Global Planetary Change|volume=56|chapter-url=http://neespi.org/science/NEESPI_SP_chapters/SP_Chapter_3.2.pdf|access-date=20 November 2017|archive-date=5 March 2016|archive-url=https://web.archive.org/web/20160305025005/http://neespi.org/science/NEESPI_SP_chapters/SP_Chapter_3.2.pdf|url-status=live}}</ref> Biochemical dynamics would also be related to the fields of [[geology]] and [[pedology]].<ref>{{cite web|title=Distributed Active Archive Center for Biogeochemical Dynamics|url=http://daac.ornl.gov/|website=daac.ornl.gov|publisher=Oak Ridge National Laboratory|access-date=20 November 2017|archive-date=11 February 2011|archive-url=https://web.archive.org/web/20110211040758/http://daac.ornl.gov/|url-status=live}}</ref>
As biogeochemical cycles describe the movements of substances on the entire globe, the study of these is inherently multidisciplinary. The carbon cycle may be related to research in ecology and atmospheric sciences. Biochemical dynamics would also be related to the fields of geology and pedology.
由于生物地球化学循环描述了物质在整个地球上的运动,对这些运动的研究本质上是多学科的。碳循环可能与生态学和大气科学研究有关。生物化学动力学也与地质学和土壤学领域有关。
==History==
[[File:1934-V I Vernadsky.jpg|thumb|upright=0.9| {{center|[[Vladimir Vernadsky]] 1934<br />father of biogeochemistry{{hsp}}<ref name=Bianchi2021>{{cite journal |doi = 10.1007/s10533-020-00708-0|title = The evolution of biogeochemistry: Revisited|year = 2021|last1 = Bianchi|first1 = Thomas S.|journal = Biogeochemistry|volume = 154|issue = 2|pages = 141–181|s2cid = 227165026}} [[File:CC-BY icon.svg|50px]] Material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License] {{Webarchive|url=https://web.archive.org/web/20171016050101/https://creativecommons.org/licenses/by/4.0/ |date=2017-10-16 }}.</ref>}}]]
{{Quote box
|quote = The chemistry of the arena of life — that is Earth’s biogeochemistry — will be at the center of how well we do, and all biogeochemists should strive to articulate that message clearly and forcefully to the public and to leaders of society, who must know our message to do their job well.
|source = — [[William H. Schlesinger]] 2004{{hsp}}<ref>{{cite journal |doi = 10.1890/03-0242|title = Better Living Through Biogeochemistry|year = 2004|last1 = Schlesinger|first1 = William H.|journal = Ecology|volume = 85|issue = 9|pages = 2402–2407}}</ref>
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{{clear}}
== See also ==
{{Portal|Environment|Ecology|Earth sciences}}
{{div col}}
* [[Carbonate–silicate cycle]]
* [[Ecological recycling]]
* [[Great Acceleration]]
* [[Hydrogen cycle]]
* [[Marine biogeochemical cycles]]
* [[Redox gradient]]
{{div col end}}
* Carbonate–silicate cycle
* Ecological recycling
* Great Acceleration
* Hydrogen cycle
* Marine biogeochemical cycles
* Redox gradient
= = = =
* 碳酸盐-硅酸盐循环
* 生态循环
* 大加速度
* 氢循环
* 海洋生物地球化学循环
* 氧化还原梯度
== References ==
{{reflist}}
==Further reading==
{{Wikiquote}}
{{refbegin}}
*Schink, Bernhard; "Microbes: Masters of the Global Element Cycles" pp 33–58. "Metals, Microbes and Minerals: The Biogeochemical Side of Life", pp xiv + 341. Walter de Gruyter, Berlin. [https://doi.org/10.1515/9783110589771-002 DOI 10.1515/9783110589771-002]
*{{cite book|editor-last1=Butcher|editor-first1=Samuel S.|title=Global biogeochemical cycles|date=1993|publisher=Academic Press|location=London|isbn=9780080954707}}
*{{cite journal|last1=Exley|first1=C|title=A biogeochemical cycle for aluminium?|journal=Journal of Inorganic Biochemistry|date=15 September 2003|volume=97|issue=1|pages=1–7|doi=10.1016/S0162-0134(03)00274-5|pmid=14507454}}
*{{cite book|last1=Jacobson|first1=Michael C.|last2=Charlson|first2=Robert J.|last3=Rodhe|first3=Henning|last4=Orians|first4=Gordon H.|title=Earth system science from biogeochemical cycles to global change|date=2000|publisher=Academic Press|location=San Diego, Calif.|isbn=9780080530642|edition=2nd}}
*{{cite book|chapter=12. Biogeochemical cycles|last1=Palmeri|first1=Luca|last2=Barausse|first2=Alberto|last3=Jorgensen|first3=Sven Erik|title=Ecological processes handbook|date=2013|publisher=Taylor & Francis|location=Boca Raton|isbn=9781466558489}}
{{refend}}
*Schink, Bernhard; "Microbes: Masters of the Global Element Cycles" pp 33–58. "Metals, Microbes and Minerals: The Biogeochemical Side of Life", pp xiv + 341. Walter de Gruyter, Berlin. DOI 10.1515/9783110589771-002
*
*
*
*
= = 进一步阅读 = = =
* Schink,Bernhard; “ Microbes: Masters of the Global Element cycle”pp 33-58。“金属、微生物和矿物: 生命的生物地球化学方面”,pp xiv + 341。德格鲁伊特,柏林。DOI 10.1515/9783110589771-002
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{{biogeochemical cycle|state=expamded}}
{{modelling ecosystems}}
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[[Category:Biogeochemical cycle| ]]
[[Category:Geochemistry]]
[[Category:Biogeography]]
Category:Geochemistry
Category:Biogeography
类别: 地球化学类别: 生物地理学
<noinclude>
<small>This page was moved from [[wikipedia:en:Biogeochemical cycle]]. Its edit history can be viewed at [[生物地球化学循环/edithistory]]</small></noinclude>
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