水土保持通报2012，Vol.32Issue(4)：147-150,4.
半干旱黄土丘陵区坡地集流水平沟的设计与应用
Engineering Design and Application of Leveled Ditch for Surface Runoff Harvesting on Slope Land in Semiarid Loess Hilly Areas
摘要
Abstract
In order to solve the problem of absent rationality and system in leveled ditch design for runoff har- vesting, the objectives, cross-section parameters, and havesting potential were studied for leveled ditch de- sign in both theory and experiments. The results show that in the growing seasons （March to September） of the 6 years from 2002 to 2008, water stored in the soil on the slope with leveled ditches was significantly higher than that on the natural slope, in the test rainfall intensity and rainfall, the intercepted runoff were 4.41, 64.23, and 104.13 mm on a 25~ slope with leveled ditches, and were 5.25, 72.39 mm on a 35~ slope with leveled ditches, respectively. The intercepting capacity per unit time increased with the increase of rain- fall intensity, reflecting the importance of high-intensity rainfall to surface runoff harvesting after slope transformation with leveled ditches.关键词
集流水平沟/工程设计/应用/半干旱黄土丘陵区Key words
level ditch of runoff harvesting/engineering design/application/semi-arid loess hilly area分类
农业科技引用本文复制引用
王月玲,王思成,蔡进军,马璠,董立国,李生宝..半干旱黄土丘陵区坡地集流水平沟的设计与应用[J].水土保持通报,2012,32(4):147-150,4.基金项目
“十一五”国家科技支撑计划项目“半干旱黄土丘陵区退化生态系统恢复技术研究” （）
宁夏回族自治区农业综合开发项目“宁南山区小流域综合治理与生态农业建设技术集成与示范” （）
