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作 者:魏光辉[1] 姜振盈[1] 张洛晨 WEI Guang-Hui;JIANG Zhen-Ying;ZHANG Luo-Chen(Xinjiang Tarim River Basin Management Bureau,Rorla 841000,China)
机构地区:[1]新疆塔里木河流域管理局,新疆库尔勒841000
出 处:《黑龙江大学工程学报》2018年第3期14-20,共7页Journal of Engineering of Heilongjiang University
基 金:水利部公益性行业科研专项(201501059);国家自然科学基金资助项目(51779074;41371052)
摘 要:通过GIS技术,以及1990年、2000年、2010年与2015年新疆和田河流域Landsat-TM影像数据,分析了研究区近25 a土地利用/覆被变化。结果表明:1990—2015年,研究区主要土地利用类型为沙地及其它未利用土地,占总面积的80%以上;研究期间,变化最显著的是城镇用地,变化率为82. 88%,其次是耕地,变化率为32. 89%。变化最不明显的是裸土地,变化率为0. 01%;新增林地面积主要来自于47. 08%的耕地面积和0. 49%的草地面积,新增沙地面积主要来自3. 62%的水域湿地面积。新增建设用地主要来自0. 85%的其它未利用地和1. 06%的耕地;经济发展与人口增加是导致流域耕地面积增加的主要因素。研究结果为和田河流域水土资源可持续利用及生态环境保护提供了一定的参考。Based on the GIS technology, and the Landsat-TM image data of 1990, 2000, 2010 and 2015 in Hotan River Basin, the land use/cover change near 25 years in study area was analyzed. The results showed that: in 1990--2015, the main land use types in the study area were sand and other unused land, accounting for more than 80% of the total area. During the study period, the most significant change was urban land, the change rate was 82.88% , followed by the cultivated land, and the change rate was 32. 89%. The most obvious change is bare land. The change rate is 0.01%. The new forest area mainly comes from 47.08% of arable land and 0.49% of the grassland area. The new sand area mainly comes from 3.62% of the wetland area. The new construction land was mainly from 0. 85% other unused land and 1.06% of the cultivated land; Economic development and population growth are the main factors leading to the increase of cultivated land. The research results provide a certain reference for the sustainable utilization of soil and water resources and the protection of ecological environment in the Hotan River Basin.
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