Ocean primary production and climate: Global decadal changes
Ocean primary production and climate: Global decadal changes
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DOI：
10.1029/2003gl016889
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发表时间：
2003-08-09
影响因子：
5.2
通讯作者：
Casey, NW
中科院分区：
文献类型：
--
作者：
Gregg, WW;Conkright, ME;Casey, NW
卫星现场混合海洋叶绿素记录表明，自 1980 年代初以来，全球海洋年初级生产力下降了 6% 以上。全球十年间下降的近70%发生在高纬度地区。在北部高纬度地区，初级生产力的减少与海面温度的上升和大气铁沉积到海洋的减少相对应。在南极，减少的同时伴随着风应力的增加。四个低纬盆地中的三个盆地的年初级生产力呈现出十年间的增长。这些结果表明，海洋光合作用对碳的吸收可能会因气候变化而发生变化，并对全球碳循环产生重大影响。
Satellite-in situ blended ocean chlorophyll records indicate that global ocean annual primary production has declined more than 6% since the early 1980's. Nearly 70% of the global decadal decline occurred in the high latitudes. In the northern high latitudes, these reductions in primary production corresponded with increases in sea surface temperature and decreases in atmospheric iron deposition to the oceans. In the Antarctic, the reductions were accompanied by increased wind stress. Three of four low latitude basins exhibited decadal increases in annual primary production. These results indicate that ocean photosynthetic uptake of carbon may be changing as a result of climatic changes and suggest major implications for the global carbon cycle.