Global Carbon Cycling on a Heterogeneous Seafloor.
Global Carbon Cycling on a Heterogeneous Seafloor.
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DOI：
10.1016/j.tree.2017.11.004
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发表时间：
2017-12
影响因子：
16.8
通讯作者：
P. Snelgrove;K. Soetaert;M. Solan;S. Thrush;Chih‐Lin Wei;R. Danovaro;R. Fulweiler;H. Kitazato;Baban Shravan Ingole;A. Norkko;R. Parkes;N. Volkenborn
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文献类型：
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作者：
P. Snelgrove;K. Soetaert;M. Solan;S. Thrush;Chih‐Lin Wei;R. Danovaro;R. Fulweiler;H. Kitazato;Baban Shravan Ingole;A. Norkko;R. Parkes;N. Volkenborn
不同的生物群落介导地球上生命基本元素的转化、运输和储存，包括碳、氮和氧。然而，全球生物地球化学模型的结果可能相差几个数量级，影响预测地球变化的现实生态系统反应的能力，包括海洋生产力和气候。在这里，我们比较了全球碳周转率估计基于生物与地球化学理论的模型，并认为基于每一个角度的营业额估计产生不同的结果。重要的是，包括沉积物生物活动的实证研究比那些忽略它的研究差异更小，提高模型预测的相关性和减少与全球变化的预期后果相关的不确定性需要调和这些观点，使更好的减缓和适应的社会决策。
Diverse biological communities mediate the transformation, transport, and storage of elements fundamental to life on Earth, including carbon, nitrogen, and oxygen. However, global biogeochemical model outcomes can vary by orders of magnitude, compromising capacity to project realistic ecosystem responses to planetary changes, including ocean productivity and climate. Here, we compare global carbon turnover rates estimated using models grounded in biological versus geochemical theory and argue that the turnover estimates based on each perspective yield divergent outcomes. Importantly, empirical studies that include sedimentary biological activity vary less than those that ignore it. Improving the relevance of model projections and reducing uncertainty associated with the anticipated consequences of global change requires reconciliation of these perspectives, enabling better societal decisions on mitigation and adaptation.