伊犁河流域油葵种植地产流产沙试验研究  

Experimental Study on Generation of Runoff and Sediment on the Slope Grown Oil Sunflower in Ili River Basin

作　　者：史彦江 宋锋惠 罗青红 马萍[2] 朱首军[2] 

机构地区：[1]新疆林科院造林治沙所,乌鲁木齐830000 [2]西北农林科技大学资环学院,陕西杨凌712100

出　　处：《水土保持研究》2011年第2期40-43,共4页Research of Soil and Water Conservation

基　　金：国家科技支撑计划项目"伊犁河谷水土流失综合治理关键技术开发与示范"(2007BAC15B07)

摘　　要：通过野外径流小区实地放水冲刷试验,研究伊犁河流域油葵坡地与裸地在不同放水条件下土壤水分入渗情况及其减流减沙效应,探讨灌溉坡耕地径流泥沙特征。结果表明:①油葵与裸地土壤入渗率随着放水流量的增加呈现递增的趋势,与裸地相比,油葵坡面入渗率增加10%,产流产沙时间晚于裸地。②油葵坡面较裸地具有显著的减流减沙效应,输沙率减少58.52%,径流系数减少22.56%左右,其削减径流作用明显弱于减沙效应。随着放水流量的增加,油葵与裸地输沙率均呈递增趋势。Based on the water scouring experiment on slope grown oil sunflower and bare slope in Ili River Basin,the situations of water infiltration and the effects of runoff and sediment reduction were investigated,exploring the characteristics of sediment output of irrigated sloping farmland.The results showed：（1） Soil infiltration rate took on the trend of increasing as the scouring discharge increased both in oil sunflower slope and bare slope.Compared to the bare slope,water infiltration rate increased by 10% and runoff initiation put off on the slope grown oil sunflower;（2） The slope grown oil sunflower had significant effects on reduction of runoff and sediment compared to the bare slope,and the sediment transport rate and the runoff coefficient decreased by 58.52% and 22.56%,respectively.

关 键 词：油葵坡地 放水冲刷 土壤水分 减流减沙 

分 类 号：S157[农业科学—土壤学]