灌溉排水学报2012，Vol.31Issue(6)：45-48,4.
三峡库区坡耕地有限顺坡耕作模式及减蚀效应
A Downslope Tillage System with Limited Slopelength on Sloping Farmlands in the Three Gorges Area and Its Erosion Reduction Effects
摘要
Abstract
The slopelength of each field varied with slope gradient and could be decided by the critical rill erosion slopelength. Slopelengths for different slope gradients on the basis of field surveys and experiments were recommends. The results indicated that compared to the bare slope farmland, the erosion reductions by horizontal ditches, terrace ridge and bank, terrace hedgerows were 63 %, 77%and 94 %, respectively, showing significant soil conservation effects. In addition, the limited downslope tillage was characterized by low cost, efficient, practical and simple operation, farmers readily acceptable, and it was suitable for promotion in the Three Gorges reservoir area.关键词
有限顺坡耕作/水平沟/埂坎/地埂经济植物篱/减蚀Key words
limited-slopelength downslope tillage/horizontal ditch/terrace ridge or bank/terrace hedgerow/erosion control分类
农业科技引用本文复制引用
韦杰,鲍玉海,金慧芳,贺秀斌..三峡库区坡耕地有限顺坡耕作模式及减蚀效应[J].灌溉排水学报,2012,31(6):45-48,4.基金项目
基金项目：国家自然科学基金项目 （）
国家科技支撑计划项目 （）
重庆市自然科学基金 （）
中国科学院山地表生过程与生态调控重点实验室开放基金 （）
