通用土壤流失方程
土壤流失
耕作
环境科学
残余物
封面(代数)
水文学(农业)
天蓬
腐蚀
农业管理
覆盖作物
土壤科学
农业
数学
农林复合经营
农学
生态学
地质学
岩土工程
生物
算法
工程类
古生物学
机械工程
作者
George E. Dissmeyer,G. R. Foster
摘要
ABSTRACT: A new procedure for estimating the cover-management factor (C) in the universal soil loss equation (USLE) for forest conditions is based on an evaluation of nine subfactors: (1) amount of bare soil, (2) canopy, (3) soil reconsolidation, (4) high organic content, (5) fine roots, (6) residual binding effect, (7) on-site storage, (8) steps, and (9) contour tillage. The procedure, validated with data from 39 research watersheds in the Southeast, provided reasonably good estimates of erosion. Use of C values obtained with this procedure are preferable to use of those from tables 11 and 12 in Agricultural Handbook 537.
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