Estimating the cover-management factor (C) in the universal soil loss equation for forest conditions
Estimating the cover-management factor (C) in the universal soil loss equation for forest conditions
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DOI：
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发表时间：
1981-07
影响因子：
3.9
通讯作者：
George E. Dissmeyer;G. R. Foster
中科院分区：
文献类型：
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作者：
George E. Dissmeyer;G. R. Foster
摘要：估算森林条件通用土壤流失方程 (USLE) 中覆盖管理因子 (C) 的新程序基于对九个子因子的评估：(1) 裸露土壤量、(2) 树冠、(3) 土壤再固结、(4) 高有机含量、(5) 细根、(6) 残留结合效应、(7) 现场储存、(8) 台阶和 (9) 等高耕作。该程序利用东南部 39 个研究流域的数据进行了验证，提供了相当好的侵蚀估计。使用通过此程序获得的 C 值优于使用农业手册 537 中表 11 和 12 中的值。
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.