干旱区土地利用变化及其成因研究——以新疆吐鲁番地区为例

The Variety of Land Use in Dry Province and Research the Cause of Formation——A Case of Turpan in Xinjiang Province

吐鲁番地区位于我国西北部,新疆维吾尔自治区东部,总面积为67.56×105hm2,是我国极端干旱区之一.利用1999—2008年间的统计数据,研究该地区的土地利用变化及其成因.综合分析显示:①整个研究区范围内,虽然农作物面积增多,但是耕地面积变化很小或保持不变.虽然鄯善县、托克逊县的耕地面积分别减少了1.06%和0.68%,但是吐鲁番市却增多了1.5%,弥补了减少部分.②建设用地中虽然居民点及工矿用地增多了6 374 hm2,但是交通运输用地减少了1 868 hm2,基本上补给居民点增长部分.③到2008年未利用地比1999年减少0.12%,,主要被新增农用地占用.

Turpan is located at northwest of our country＇ s and east of Xinjiang Uighur autonomous region,with total area of 67.56 ×10^5 hm^2. The variation of land utilization was studied using the statistics data in the years of 1999- 2008. Comprehensive analysis indicates that, the farm crop area increased, while farmland area varied little or keep constant, For example, the variety speed of farmland was 0.13% lower than that of 1.86% at the garden province. In the residents ground, water conservancy facilities used ground was increased with 2.84% speed in relation to total output value and population growth. In 2008, the unused grounds decreased 0.12% than that in1999, which was mostly appropriated by inhabitation place and mining.