人民长江2016，Vol.47Issue(1)：11-14,4.DOI:10.16232/j.cnki.1001-4179.2016.01.003
等高反坡阶对坡耕地土壤水分空间分布的影响——以昆明松花坝水源区为例
Effect of contour reverse-slope on spatial distribution of soil moisture of slope farmland:case of water sources area of Songhuba in Kunming
摘要
Abstract
The sloping farmland is the main land-use type in water sources area of Songhuaba in Kunming. Aiming at the se-rious soil erosion of slope farmland in the water source protection areas, the slope farmland with different gradients in the small watershed ( Yizhe) of the water sources area, treated with contour reverse-slope method, was taken as example to research the effect of contour reverse-slope on spatial distribution of soil moisture of slope farmland. The results showed that the water con-servation effect of the slope treated by contour reverse-slope method is better than that of the ordinary slope; the contour slope steps has the functions of surface runoff interception and redistribution, the moisture content of soil layer from 20 to 40 cm after rainfall is 1. 9% to 6. 49% higher than that of the ordinary surface soil;the soil water content is significantly and negatively relat-ed with slope, depth and absence of the reverse slope steps, while is significantly and positively related with the altitude.关键词
土壤水分/松华坝水源区/等高反坡阶/水土流失Key words
soil moisture/Songhuaba water sources area/contour reverse-slope/soil and water loss分类
农业科技引用本文复制引用
华锦欣,王克勤,张香群,翟子宁,朱晓婷..等高反坡阶对坡耕地土壤水分空间分布的影响——以昆明松花坝水源区为例[J].人民长江,2016,47(1):11-14,4.基金项目
国家自然科学基金资助项目"微区域集水系统控制云南山区农业面源污染的机理研究"(30660037) （30660037）
