燕沟流域水土流失治理及其效益分析  

Study on harnessing of soil and water loss and analysis of benefits in Yan Gully watershed

作　　者：琚彤军[1] 刘普灵[1] 郑世清[1] 徐学选[1] 

机构地区：[1]西北农林科技大学中国科学院水利部水土保持研究所,陕西杨陵712100

出　　处：《西北农林科技大学学报（自然科学版）》2003年第B10期65-67,72,共4页Journal of Northwest A&F University(Natural Science Edition)

基　　金：中国科学院西部行动计划资助项目(KZCX1-06-02-05);西北农林科技大学专项基金项目资助

摘　　要：　对燕沟流域水土流失及治理状况作了系统阐述,基于已完成的水土流失治理,对流域水土流失治理进度与相应的水保及社会经济效益进行了分析。截至2000年,流域新修高标准梯田485.6hm2,实现了人均基本农田0.165hm2;川台坝地粮食单产提高27.9%,梯田粮食单产提高12.8%,2000年人均产粮525.1kg;人均纯收入1541元;1997～2000年实测减沙效益平均达到了72%。基本完成坡耕地退耕还林还草及荒山荒沟封禁任务,植被覆盖率超过70%,治理度达73.3%。The present conditions of soil and water loss and harnessing results of Yan Gully watershed have been expounded in this paper.Furthermore,the benefits and schedule from watershed harness also have been analized.By 2000,there are increased 485.6 hm^2 high standard terrace,achieved average essential land 0.165 hm^2 per-person,average yield 525.1 kg per-person,average income 1 541 yuan per-person.From 1997 to 2000,benefit from reducing sediment reached 72% by observation.Vegetation covering rate exceeded 73.3%.Harness tasks have completely implemented in Yan Gully watershed.

关 键 词：燕沟流域 水土流失治理 效益分析 植被覆盖率 

分 类 号：S157.2[农业科学—土壤学]