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中国生态脆弱区土地可持续利用评价研究/RESEARCH ON THE EVALUATION OF LAND USE SUSTAINABILITY IN ECOLOGICALLY FRAGILE REGION IN CHINA[J]
Authors
Xu Erqi
Zhang Hongqi
+4 more
中国科学院地理科学与资源研究所 北京100101
中国科学院研究生院 北京100049
张红旗
许尔琪
Publication date
1 January 2012
Publisher
Abstract
该文以县域为研究单元,针对中国黄土高原区、北方农牧交错区、西北干旱风沙区、西南岩溶区和三江源区等生态脆弱区域,从环境支持性、资源保护性、经济可行性和社会可接受性等四方面建立了土地可持续利用评价体系,综合评价了各区的土地利用可持续性程度及其空间分布特征.结果表明:黄土高原区和三江源区的弱度、较弱可持续性等级县数比例各为55.14%和87.5%,整体可持续性较低;其余三区强度和较强可持续性等级的县比重均超过或接近40%,可持续性相对较高.从空间上看,新疆昆仑山北坡绿洲区、黄土高原丘陵沟壑区、宁夏南部山区、青海三江源区和贵州南部岩溶山区是弱度土地可持续性的主要聚集区
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Institutional Repository of Xinjiang Institute of Ecology and Geography, CAS
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Last time updated on 29/11/2016