【摘要】 通过采取实测结合TM卫片解译判读,区划图斑进行调查的方法提供沙化土地面积现状及其动态。调查以2004-2014年度沙化土地普查资料做本底,利用近似同期的最新TM影像,对内蒙古翁牛特旗沙化土地现状进行了分析研究。结果表明:翁牛特旗总土地面积为119.02万hm~2,沙化土地面积为48.48万hm~2,占全旗总土地面积的40.73%;在沙化土地中,流动沙化土地10.17万hm~2,占沙化土地的20.98%,半固定沙化土地8.83万hm~2,占沙化土地的18.12%,固定沙化土地29.48万hm~2,占沙化土地的60.81%;2004-2014年10年间翁牛特旗沙化土地面积减少了23.22万hm~2,流动沙地面积减少了22.81万hm~2,半固定沙地减少8.38万hm~2,固定沙地面积增加了7.97万hm~2,这充分说明翁牛特旗土地沙化治理工程工作成效显著。更多还原

【Abstract】 Based on the general survey of desertization land from 2004 to 2014,the present situations of desertizaiton land in Wengniute Banner have been analyzed by use of the newest TM images. The results show that the total land area of Wengniute Banner is 1. 1902 million hm2,the area of desertization land is 484. 8 thousands hm2 by taking up 40. 73 percent of the total area. The moving desertization land is 101. 7 thousands hm2 by taking up20. 98 percent of the desertization land,the semi- fixed desertization land is 88. 3 thousands hm2 by taking up18. 12 percent of the desertization land,the fixed desertization land is 294. 8 thousands hm2 by taking up 60. 81 percent of the desertization land. From 2004 to 2014,the area of desertization land has decreased by 232. 2 thousands hm2,the one of moving desertization land has decreased by 228. 1 thousands hm2,the one of semi- fixed desertization land has decreased by 83. 8 thousands hm2,the one of fixed desertization land has increased by 79. 7thousands hm2. It fully explains that the desertization land prevention and combat in Wengniute Banner has marked effects.更多还原