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