南京林业大学学报（自然科学版）2012，Vol.36Issue(3)：149-152,4.
不同降雨条件对江苏高沙土地区水土流失的影响
Erosion rule of disturbed sandy soil by artificial simulated rainfall
摘要
Abstract
Simulated rainfall was used to study the water erosion rule of disturbed sandy soil under different slope, different rainfall intensity and different vegetation coverage conditions. The results showed; ( 1) The runoff increased along with the increasing slope gradient. There was a critical erosion slope between erosion amount at sandy soil and slope gradient. When rainfall intensity was lower than 80 mm/h, the critical erosion slope was between 20° and 26. 5°. ( 2) When the rainfall amount was set, runoff amount increased as the rainfall intensity increased, while the precipitation infiltration amount decreased as the rainfall intensity increased. (3) Vegetation can greatly reduce runoff and soil erosion.关键词
人工模拟降雨/高沙土/水土流失Key words
simulated rainfall/ high sandy soil/ soil erosion分类
农业科技引用本文复制引用
胡辉,张金池,朱丽珺,毕峰,杨聪..不同降雨条件对江苏高沙土地区水土流失的影响[J].南京林业大学学报（自然科学版）,2012,36(3):149-152,4.基金项目
国家林业局"948"项目(2008-4-40) （2008-4-40）
江苏省自然科学基金重点项目(BK2001208) （BK2001208）
