奈曼旗沙漠化土地动态变化分析  

THE ANALYSIS OF THE DYNAMIC CHANGES OF DESERTED LAND IN NAI MAN BANNER

作　　者：闫德仁[1] 刘永军[1] 余伟莅[1] 

机构地区：[1]内蒙古林业科学研究院,呼和浩特010010

出　　处：《内蒙古环境保护》2001年第3期20-22,共3页Inner Mongolia Environmental Protection

摘　　要：本文利用两期TM卫片对奈曼旗五个苏木的沙漠化土地动态进行了分析。 10年间沙漠化土地总面积减少了 45 7. 82km2 ,但同期耕地面净增加了 394. 0 8km2 ;同时 ,流动沙地面积增加了 139. 62km2 ,图斑数降低到 5 0 % ,流动沙地明显扩展 ,斑块间发生合并 ,集中连片的趋势严峻。不同苏木沙漠化土地变化表明 ,土地利用方式对其有明显影响。Based on the two terms of TM satellite photo,the dynamic changes of deserted land in five Su Mu of Nai Man Banner are analyzed. During last ten years,the total areas of deserted land had decreased as 457.82 square km,but, at the same time, the net arable land had increased as 394.08 square km, the areas of moving sand had increased as 139.62 square km. The final results influences on desertification formation.

关 键 词：沙漠化土地 动态变化 奈曼旗 生态建设 水土流失 

分 类 号：S157.1[农业科学—土壤学] X171.4[农业科学—农业基础科学]