水土保持研究2011，Vol.18Issue(1)：7-11,5.
黄土区浅沟侵蚀影响因素对其侵蚀速率影响的模拟试验研究
Experimental Study on Influencing Factors of Ephemeral Gully Erosion on Losses Slope
摘要
Abstract
Ephemeral gully erosion is an important erosion type in hilly area of Loess Plateau. The influence of rainfallt intensity, area of upper catchment, gradient and tillage to ephemeral gully was studied preliminarily by simulating experiments. Main conclusions as follows: there was positive correlation between ephemeral gully erosion velocity and slope gradient, rainfall intensity, upper catchment area; Tillage changed the response relationship between rainfall intensity, slope gradient, upper catchment area and erosion velocity by changing the surface soil structure. Erosion velocity showed accelerating trend from small slope and small catchment area to steep slope and large catchment area.On lesser gradient slope, tillage reduced the erosion changes invited by rainfall intensity significantly, but on bigger gradient slope, tillage increased erosion velocity under bigger rainfall intensity. This study can provide with theoretical support for understanding characteristic of ephemeral gully erosion deeply, developing the mechanism.关键词
黄土/浅沟侵蚀/影响因素/雨强/坡度/上游汇水面积/耕作分类
农业科技引用本文复制引用
龚家国,庞金城,贾仰文,王文龙,周祖昊,彭辉..黄土区浅沟侵蚀影响因素对其侵蚀速率影响的模拟试验研究[J].水土保持研究,2011,18(1):7-11,5.基金项目
国家自然科学基金项目(50709041,50779074,50939006,50721140161) （50709041,50779074,50939006,50721140161）
"十一五"国家科技支撑计划课题(2006BAB06B06) （2006BAB06B06）
中国水科院博士生学位论文创新研究资助课题 （）
