Organic Carbon in Soils of the World

作者：H. Eswaran, Evert van den Berg, Paul F. Reich · 发表于：Soil Science Society of America Journal · 年份：1993 · DOI：10.2136/sssaj1993.03615995005700010034x · 被引用次数：1471 · 研究领域：Soil Carbon and Nitrogen Dynamics、Geochemistry and Geologic Mapping

Abstract The C stored in soils is nearly three times that in the aboveground biomass and approximately double that in the atmosphere. Reliable estimates have been difficult to obtain due to a lack of global data on kinds of soils and the amount of C in each soil. With new data bases, our study is able to provide more reliable data than previous estimates. Globally, 1576 Pg of C is stored in soils, with ≈ 506 Pg (32%) of this in soils of the tropics. It is also estimated that ≈ 40% of the C in soils of the tropics is in forest soils. Other studies have shown that deforestation can result in 20 to 50% loss of this stored C, largely through erosion.