Black carbon in deep-sea sediments
Black carbon in deep-sea sediments
复制标题
DOI：
10.1126/science.280.5371.1911
复制
发表时间：
1998-06-19
期刊：
影响因子：
56.9
通讯作者：
Druffel, ERM
中科院分区：
文献类型：
--
作者：
Masiello, CA;Druffel, ERM
黑碳（BC）通过气溶胶和河流沉积进入海洋。在两个深海地点，BC占沉积有机碳（SOC）的12%至31%，它是2400至13,900个碳-比同期沉积的非BC SOC早14年。BC可能更古老，因为它在沉积沉积之前储存在中间储层中。可能的中间库是海洋溶解有机碳（DOC）和陆地土壤。如果DOC是中间水库，那么BC是DOC库的4%至22%。如果土壤是中间储存库，那么河流碳在海洋碳循环中的重要性就被低估了。
Black carbon (BC) enters the ocean through aerosol and river deposition. BC makes up 12 to 31 percent of the sedimentary organic carbon (SOC) at two deep ocean sites, and it is 2400 to 13,900 carbon-14 years older than non-BC SOC deposited concurrently. BC is likely older because it is stored in an intermediate reservoir before sedimentary deposition. Possible intermediate pools are oceanic dissolved organic carbon (DOC) and terrestrial soils. If DOC is the intermediate reservoir, then BC is 4 to 22 percent of the DOC pool. If soils are the intermediate reservoir, then the importance of riverine carbon in the ocean carbon cycle has been underestimated.