乌陡河小流域水土保持效益分析

Analysis of Benefits on soil and water Conservation in wupohe watershed

乌陂河小流域,坚持长期综合治理,取得了显著的生态效益和经济效益。该河是移质输沙量1990年比1985年下降45775.79t,减少77.3%;河床下切1.25m;植被覆盖度由1952年的15%提高到1990年的80%;土壤肥力明显提高,农作物大幅度增产,粮食总产1990年比1981年增长5.4%,人均收入增长92.8%,人民生活水平显著提高。

Remarkable benefits of ecology,economy have been achieved through the effect of long-term comprehensive con-trol of water and soil erosion in wupohe valley,The amount of conveyance of suspended sediment of the river was de-creased by 45 775. 79t or 77. 3%from 1985 to 1990,The river bed was cut down by 1. 25 meter,The degree of vegeta-tion cover had been incteased from 15% in 1952 to 80% in 1990. Thus soil fertility and crop yield have been raised,The total grain yield rose by 5. 4 % from 1981 to 1990,The per capita income of people rose by 92. 8%. As a result,the living standards of the people improved apparently.