水土保持学报2012，Vol.26Issue(5)：17-21,5.
南方红壤区强降雨下不同农路水蚀过程及其防蚀效应
Erosion Processes and Anti-erosion Effects of Different Farm Roads Under Heavy Rain in Red Soil Region of Southern China
摘要
Abstract
In order to illustrate the erosion processes and anti-erosion effects of different farm roads in red soil region of southern China,4 farm roads,i.e.the bare unpaved road,the stone covered road,the stone and grass covered road and the grass covered road,were selected on the representative area named Jiangxi Eco-science Park of Soil and Water Conservation.12 rainfall simulation experiments with an intensity of 3.0 mm/min were carried out on the selected roads.The roads' pavements were compacted tightly,with big bulk density and large proportion.The water infiltration rate of the farm road,especially the stone and grass covered road,the bare unpaved road and the grass covered road,experienced a sharp decrease to a stable process.After a short period of time,sediment concentration of the farm road reached a peak then dropped quickly.Compared with the bare unpaved road,effects on water conservation of the stone and grass covered road,the stone covered road and the grass covered road were not obvious,and the maximum was only 14.1%.But,the benefits of sediment reduction were obvious,and the lowest was up to about 40%.This study results provide a scientific reference for comprehensive management of small watershed and the construction of agricultural road infrastructure in red soil region of southern China.关键词
农路/水蚀过程/防蚀效应/南方红壤区Key words
farm road/erosion process/anti-erosion effect/red soil region of southern China分类
农业科技引用本文复制引用
武艺,郑海金,肖胜生,汪邦稳,欧阳辉,段剑..南方红壤区强降雨下不同农路水蚀过程及其防蚀效应[J].水土保持学报,2012,26(5):17-21,5.基金项目
水利公益性行业科研专项 （）
