Silicic acid biogeochemistry in the Gulf of California
Silicic acid biogeochemistry in the Gulf of California
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加利福尼亚湾硅酸生物地球化学
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Ernie Balcerak
中科院分区：
文献类型：
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作者：
Ernie Balcerak
硅是硅质浮游植物生长所必需的营养物质，硅质浮游植物占海洋初级生产量的很大一部分。硅酸的限制限制了初级生产和碳出口，因此生物地球化学硅循环影响碳循环和气候。硅的循环主要是在海洋中铁有限的区域进行的，关于铁的有效性对沿海上升流系统硅循环的影响知之甚少。Pichevin等人。调查了加利福尼亚州海湾的营养盐分布和沉积记录，该海湾全年不受铁的限制。他们发现，即使在这种环境下，铁的限制也是沿海上升流地区硅循环的一个重要因素。(《古海洋学》DOI：10.1029/2011PA002237,2012年)
Silicon is an essential nutrient for the growth of siliceous phytoplankton, which accounts for a significant amount of marine primary production. Constraints on silicic acid limit primary production and carbon export, so biogeochemical silicon cycling influences the carbon cycle and climate. Silicon cycling has been studied mostly in iron-limited regions of the ocean, and not much is known about the effects of iron availability on silicon cycling in coastal upwelling systems. Pichevin et al. investigated nutrient profiles and sedimentary records from the Gulf of California, which is not limited by iron year-round. They found that iron limitation even in this type of setting is an important factor in silicon cycling in coastal upwelling regions. (Paleoceanography, doi:10.1029/2011PA002237, 2012)