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File:BIOGEOCHEMICAL CYCLING OF ELEMENTS.svg| {{center|Examples of major biogeochemical processes}}
File:BIOGEOCHEMICAL CYCLING OF ELEMENTS.svg| {{center|Examples of major biogeochemical processes}}
File:WhalePump.jpg|海洋中的“鲸泵”显示鲸鱼如何使得养分在大洋水柱中循环。
File:WhalePump.jpg|海洋中的“鲸泵”显示鲸鱼如何使得养分在大洋水柱中循环。
File:Global carbon cycle.webp|人类活动引起的全球碳循环变化造成的影响令科学家们担忧。<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].</ref>
File:Global carbon cycle.webp.png|人类活动引起的全球碳循环变化造成的影响令科学家们担忧。<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].</ref>
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