摘要
以新疆开孔河作为研究区域,利用1990年、2000年与2010年Landsat-TM影像数据和中巴资源卫星数据,结合GIS技术,分析了研究区近20a土地利用/覆被变化,并对其变化原因进行分析.结果表明:1990—2010年,研究区其他林地、裸土地、耕地、滩涂湿地、盐碱地和城镇用地面积呈现增加趋势,;其它建设用地、其它未利用地、灌木林地与中覆盖度草地面积呈现减少趋势,;利用转移矩阵可知,流域新增耕地面积主要来自草地和沙地.研究结果可为区域水土资源可持续利用及生态环境保护提供参考.
The extraction of land cover information based on remote sensing has a direct significance for agricultural and forestry production and environmental monitoring. In this paper,Kai-kong River Basin is selected as study area,by using1990,2000 and 2010 Landsat TM image data and CMB resource satellite data,combined with GIS technology,the land use / cover change of the study area nearly 20 years is analyzed and the reasons for such changes are discussed. The results show that: from 1990 to 2010,the land area of other forest land,bare land,farmland,wetland and saline land and towns increased,change rates were 6123. 86%,99. 48%,95. 18%,77. 83%,76. 70% and 72. 25%; other construction land and unused land,woodland,shrub and coverage grassland area showed a decreasing trend and the change rate were- 70.40%,- 37. 38%,- 27. 39% and- 25. 07%. The transfer matrix shows that the basin of new arable land mainly from grassland and sandy land,woodland area has increased 7. 62% from main cultivated land and 0. 60% from grassland,grassland area decreased,mainly transferred to cultivated land and water wetland; water wetland area added from grassland,accounting for 99. 68% of the area to the total wetland area. The results can provide reference for the sustainable utilization of regional water and soil resources,as well as ecological environment protection.
出处
《浙江水利水电学院学报》
2016年第4期48-57,共10页
Journal of Zhejiang University of Water Resources and Electric Power
基金
新疆水利水电工程重点学科基金资助(XJZDXK-2010-02-12)
关键词
开孔河流域
遥感
土地利用
土地覆被
Kai-kong River Basin
remote sensing
land use
land cover
