水土保持措施对罗玉沟流域水沙变化的影响  

Influence of Soil and Water Conservation Measures to Runoff and Sediment Variations of Luoyugou Watershed

作　　者：秦瑞杰[1] 陆广勇 安乐平[1] 李雷[1] 蔡玖锱 QIN Ruijie;LU Guangyong;AN Leping(Yellow River Conservancy Commission,Tianshui Soil and Water Conservation Experimental Station,Tianshui,Gansa 741000,China;Guangxi Bohuan Environmental Consulting Services Co.,LTD.,Nanning,Guangxi 530005,China)

机构地区：[1]黄河水利委员会天水水土保持科学试验站,甘肃天水741000 [2]广西博环环境咨询服务有限公司,广西南宁530005

出　　处：《中国水土保持》2019年第1期19-22,69,共5页Soil and Water Conservation in China

基　　金：中央级公益性科研院所基本科研业务费专项资金资助项目(HKY-JBYW-2016-17);黄河流域水土保持项目(12616201453102)

摘　　要：根据罗玉沟流域1986—2010年降水、径流、泥沙观测数据,分析1986—2010年观测期,以及1986—1999、2000—2010年的降水量、径流量、输沙量及其相关关系,结果表明:流域内年径流量、输沙量与降水量之间均表现为较好的幂函数关系,而年输沙量与径流量之间则呈现出较好的线性关系;受流域内梯田、林地和草地面积增加,以及坡耕地面积减少影响,年径流量和输沙量均表现出不同程度的减少趋势。The paper analyzed the precipitation,runoff,sediment discharge and their correlations in the observed period of 1986-2010,1986-1999 and 2000-2010 based on the observed data of precipitation,runoff and sediment during the period of 1986-2010. The outcomes show that a) the annual runoff,annual sediment discharge and annual precipitation within the watershed all show good power function relation and the annual sediment discharge and annual runoff show good linear relation and;b) influenced by the increased area of terraced fields,woodland and grassland and the decreased area of slope farmland,the annual runoff and annual sediment discharge show decreased trend by varying degrees.

关 键 词：降水 径流 泥沙 水土保持措施 罗玉沟流域 

分 类 号：S157[农业科学—土壤学]