气候变化领域集成服务门户(CCPortal): Increase in the export of alkalinity from North America's largest river

CCPortal

DOI	10.1126/science.1083788
	Increase in the export of alkalinity from North America's largest river
	Raymond P.A.; Cole J.J.
发表日期	2003
ISSN	0036-8075
起始页码	88
结束页码	91
卷号	301 期号:5629
英文摘要	Chemical weathering and the subsequent export of carbonate alkalinity (HCO3- + CO3-2) from soils to rivers account for significant amounts of terrestrially sequestered atmospheric CO2. We show here that during the past half-century, the export of this alkalinity has increased dramatically from North America's largest river, the Mississippi. This increased export is in part the result of increased flow resulting from higher rainfall in the Mississippi basin. Subcatchment data from the Mississippi suggest that the increase in the export of alkalinity is also linked to amount and type of land cover. These observations have important implications for the potential management of carbon sequestration in the United States.
英文关键词	Alkalinity; Carbon; Carbonates; Catchments; Chemical weathering; Rivers; carbon; carbon dioxide; carbonic acid; rain; alkalinity; carbon sequestration; chemical weathering; land cover; rainfall; soil; alkalinity; article; atmospheric diffusion; catchment; priority journal; river basin; river ecosystem; soil; terrestrial surface waters; United States; water flow; weathering; Atmosphere; Bicarbonates; Biomass; Carbon; Carbon Dioxide; Carbonates; Crops, Agricultural; Fresh Water; Geologic Sediments; Hydrogen-Ion Concentration; Protons; Rain; Silicates; Soil; Trees; United States; Water Movements; North America
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245190
作者单位	Sch. of Forest./Environ. Studies, Yale University, 205 Prospect Street, New Haven, CT 06511, United States; Institute of Ecosystem Studies, 65 Sharon Turnpike, Millbrook, NY 12545, United States
推荐引用方式 GB/T 7714	Raymond P.A.,Cole J.J.. Increase in the export of alkalinity from North America's largest river[J],2003,301(5629).
APA	Raymond P.A.,&Cole J.J..(2003).Increase in the export of alkalinity from North America's largest river.Science,301(5629).
MLA	Raymond P.A.,et al."Increase in the export of alkalinity from North America's largest river".Science 301.5629(2003).