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- Cole, C. Vernon; Flach, Klaus; Lee, Jeffrey; Sauerbeck, Dieter; Stewart, Bobby
- Water, air, and soil pollution 1993 v.70 no.1-4 pp. 111
- agricultural land; carbon sequestration; land use change; history; agroecosystems; agricultural soils; inventories; soil organic carbon; carbon dioxide; soil management; fertilizers; production costs; greenhouse gases; gas emissions; water quality; crop production; databases; soil nutrient balance; meta-analysis
- ... Most existing agricultural lands have been in production for sufficiently long periods that C inputs and outputs are nearly balanced and they are neither a major source nor sink of atmospheric C. As population increases, food requirements and the need for more crop land increase accordingly. An annual conversion of previously uncultivated lands up to 1.5 x 10⁷ hectares may be expected. It is this ...