摘要
青海湖地区是我国青藏高原的生态脆弱区。我们利用遥感技术手段配合地面调查数据,建立适合青海湖流域的沙漠化评价指标体系,并对流域的沙漠化程度进行评价。结果显示,青海湖流域潜在沙漠化土地面积7497.45km^2,占研究区总面积的55.82%;发展中的沙漠化土地面积4569.81km^2,占研究区总面积的34.03%;强烈发展中的沙漠化土地面积546.41km^2,占研究区总面积的4.07%;严重沙漠化土地面积816.62km^2,占研究区总面积的6.08%。气候与土壤结构是青海湖流域土地沙化的主要原因。
Qinghai-Lake Area is one of ecologically vulnerable areas in Qinghai-Tibetan Plateau. Therefore, we use remote sensing technology and ground investigation data to build indicator system for desertification assessment, fit for Qinghai-Lake Area, and carries out assessment. The result shows, land area of potential desertification is 7497.45km2, which is 55.82% of total research area. Land area of development desertification is 4569.81km2, which is 34.03% of total research area. Land area of strong development desertitieation is 546.41km2, which is 4.07% of total research area. Land area of ser/ous desertification is 816.62km2, which is 6.08% of total research area. Climate and soil structure are the main reason of desertification in Qinghai- Lake Area.
出处
《国土与自然资源研究》
2016年第3期35-37,共3页
Territory & Natural Resources Study
基金
中央级公益性科研院所基本科研业务费专项
关键词
遥感
沙漠化
评价
指标体系
青海湖
Remote sensing
Desertificafion
Assessment
Indicator system
Qinghai-Lake Area
