宁夏重点风沙区土地沙化成因分析  

Causes of Soil Desertification in the Key Windy-sandy Region in Ningxia

作　　者：李谭宝[1] 张广军[2] 文妙霞[1] 

机构地区：[1]国家林业局西北林业调查规划设计院,西安710048 [2]西北农林科技大学资源环境学院,陕西杨陵712100

出　　处：《西北林学院学报》2003年第4期70-73,共4页Journal of Northwest Forestry University

基　　金：国家林业局全国荒漠化普查与监测项目

摘　　要：选择宁夏重点风沙区的毛乌素沙地、腾格里沙区、银川平原黄灌区腹地,从自然因素和人为因素两方面对其沙化土地形成原因作了分析,认为人口增长速度过快,土地资源利用和人类经济活动的不合理,是其土地沙化的主要原因。Desertification has become one of most serious environmental problems restricting the development of the local economy in Ningxia Hui Autonomous Region. Three key desertification-affected areas were selected to investigated the causes of desertification from natural and human factor i. e. , Mousu Desert,Tengeli desert and irrigated area in the central Yinchuan Plain. It has been found that the overgrowth population, irrational land use and economic activities were the main causes of desertification.

关 键 词：宁夏 重点风沙区 土地沙化 成因 

分 类 号：S156.2[农业科学—土壤学]