人民黄河Issue(10)：89-91,98,4.DOI:10.3969/j.issn.1000-1379.2015.10.023
黄土丘陵沟壑区坡地土壤侵蚀与降雨产流关系
Study on the Relationship Between Rainfall Runoff and Soil Erosion of Slopeland in Gullied Rolling Loess Area
摘要
Abstract
Based on the data of 27 erosive rainfalls from 2009 to 2012 of four farmland runoff plots in Anjiapo small watershed,this paper analyzed the relationship characteristics of the rainfall runoff and the soil erosion in gullied rolling loess area. The results show that rainfall runoff and soil erosion of cultivated land are proportional to the gradient variables under the same rainfall conditions. The erosive rainfall distributions are extremely uneven and show obvious distribution characteristics of one-peak in flood seasons. Leading to the soil and water loss of farmland rainfall about the runoff level is heavy rain in gullied rolling loess area. Especially,the erosive rainfall in July is the largest. Therefore,July becomes the most critical period to prevent and control the soil erosion of farmland in the gullied rolling loess area.关键词
降雨/产流/土壤侵蚀/黄土丘陵沟壑区/安家坡小流域Key words
rainfall/runoff yield/soil erosion/gullied rolling loess area/Anjiapo small watershed分类
农业科技引用本文复制引用
焦金鱼..黄土丘陵沟壑区坡地土壤侵蚀与降雨产流关系[J].人民黄河,2015,(10):89-91,98,4.基金项目
甘肃省教育厅科研项目（1127B－01）。 （）
