摘要
本文利用RS与GIS技术手段分析了内蒙古农牧交错带中部地区荒漠化情况,得 出结论如下:①研究区土地退化主要以草地、耕地退化为主。其中,草地退化严重。在2000 年,草地退化面积达3556516.9hm2,占总草地面积的75.3%;耕地退化面积为1905119.6 hm2,占总耕地面积的69.2%。②研究区土地荒漠化面积达5982412.2hm2,占研究区面积的 71.0%。其中风蚀荒漠化面积最大,占研究区总面积的38.6%;水蚀荒漠化面积次之,面积 2491597hm2,占研究区总面积的29.6%;盐渍化面积最小,为239296hm2,只占2.8%。
Using RS and GIS technology ,desertification of the middle part of farming-grazing transitional zone in Inner Mongolia are analyzed in this paper. The conclusion are as follows: ①In research region , land degeneration give priority to degeneration of grassland and cultivated land. In it, degeneration of grassland is serious. In 2000 year,the area of grassland degeneration is 3556516.9 hm 2, it occupy 75.3% of all grassland area; Area of cultivated land degeneration is 1905119.6 hm 2, it occupy 69.2% of all cultivated land area.②In research region , desertification area is 5982412.2 hm 2, occupy 71.0% of research region. In it , area of wind erosion desertification is the most,it occupy 38.6% of research region; Area of water erosion desertification comes second ,is 2491597 hm 2 ,it occupy 29.6% of research region; Area of saline desertification is the least,is 239296 hm 2 ,it only occupy 2.8% of research region.
出处
《干旱区资源与环境》
CSSCI
CSCD
2004年第S3期69-72,共4页
Journal of Arid Land Resources and Environment
基金
教育部科学技术研究重点项目(02034)
教育部人文社会科学重点研究基地重大项目(02JAZJD840023)资助
关键词
荒漠化
土地利用
内蒙古农牧交错带中部地区
desertification
landuse
the middle part of farming-grazing transitional zone in Inner Mongolia
