黄土高原沟壑区中尺度流域水土流失治理探讨  

Approach to Treatment of Soil and Water Loss of Mesorscale Watersheds in Gullied Rolling Loess Area

作　　者：郭锐[1] 赵安成[1] 王爱龙[2] 左涛鸣[1] 

机构地区：[1]黄河水土保持西峰治理监督局,甘肃庆阳745000 [2]中国石油长庆油田公司,陕西西安710018

出　　处：《人民黄河》2010年第9期76-77,共2页Yellow River

基　　金："十一五"国家科技支撑计划项目(2006BAD09B09)

摘　　要：将砚瓦川流域划分为中尺度流域分区治理,项目区上游塬面面积大,交通方便,地下水埋藏较浅,饮水条件较好,以"保塬固沟"为主;项目区中游塬面破碎,交通相对落后,人均土地面积大,塬地少,山坡地多,饮水条件差,以"塬沟兼治"为目标;项目区下游塬面窄小,川台地面积大,人均土地面积较多,交通困难,要在粮食自给的条件下,退耕还林还草,有效控制水土流失,促进全流域水土保持生态工程建设。It conducts regional treatment by dividing Xianwachuan drainage basin into mesorscale watersheds: a) the area of tableland on the upper reaches of the project area is large,convenient transportation,shallower groundwater,better drinking water condition and taking 'protecting tableland and stabilizing gully' as the main;b) the tableland on the middle reaches of the project area is broken,transportation is relatively backward,large land area per person,less tableland,more sloped land,poor drinking water conditions and taking 'simultaneous treatment of tableland and gully' as the objective;c) the tableland on the lower reaches of the project area is narrow,large low-lying flat land between hills,larger land area per person and difficult transportation.It should return cultivated land to woodland and grassland,effectively control soil and water loss and promote soil and water conservation ecological building of the whole drainage basin under the conditions of self-sufficient in grain.

关 键 词：中尺度 流域 治理途径 

分 类 号：S157.2[农业科学—土壤学]