Air-sea exchange of carbon dioxide in ocean margins: A province-based synthesis
Air-sea exchange of carbon dioxide in ocean margins: A province-based synthesis
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DOI：
10.1029/2006gl026219
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发表时间：
2006-06-20
影响因子：
5.2
通讯作者：
Wang, Yongchen
中科院分区：
文献类型：
--
作者：
Cai, Wei-Jun;Dai, Minhan;Wang, Yongchen
在从测量或模型确定全球海洋到空气的CO2通量时，海洋边缘尚未从陆地或公海中分辨出来。最近的研究表明，大陆架可以是大气中二氧化碳的一个大的汇，也可以是一个源。这个CO2汇/源项可能会大大改变我们目前对陆地和海洋全球碳预算的看法。然而，过去的野外工作和综合都集中在北方温带的少数陆架上，而忽略了其他陆架的绝大多数。通过将高度异质的陆架划分为7个区，我们认为，在中高纬，陆架是大气CO2的汇（-0.33PgC a（-1）），在低纬，陆架是CO2的源（0.11PgC a（-1））。温暖的温度和高的陆地有机碳输入是低纬陆架CO2释放的主要原因。
In determining global sea-to-air CO2 flux from measurements or models, the ocean margin has not been resolved from the land or the open ocean. Recent studies have indicated that shelves can be either a large sink or a source for atmospheric CO2. This CO2 sink/source term may substantially alter our current view of the global carbon budget for land and oceans. However, past fieldwork and synthesis have focused on a few shelves in the northern temperate zone while the vast majority of other shelves are ignored. By dividing the highly heterogeneous shelves into seven provinces, we suggest that the continental shelves are a sink for atmospheric CO2 at mid-high latitudes (-0.33 Pg C a(-1)) and a source of CO2 at low latitudes (0.11 Pg C a(-1)). Warm temperature and high terrestrial organic carbon input are most likely responsible for the CO2 release in low latitude shelves.