File:Simplified budget of carbon flows in the ocean.png|thumb|简单三箱模型 <small>海洋碳流的简化预算<ref name=Middelburg2019>Middelburg, J.J.(2019) ''Marine carbon biogeochemistry: a primer for earth system scientists'', page 5, Springer Nature. [[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></small> | File:Simplified budget of carbon flows in the ocean.png|thumb|简单三箱模型 <small>海洋碳流的简化预算<ref name=Middelburg2019>Middelburg, J.J.(2019) ''Marine carbon biogeochemistry: a primer for earth system scientists'', page 5, Springer Nature. [[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></small> |