摘要
在对塔里木河中游肖塘绿洲-荒漠交错带1973年、1990年、2000年和2010年的4期Landsat卫星遥感影像进行解译的基础上,利用GIS技术和RS技术,建立该地区土地利用空间数据库,定量分析了研究区37年来土地利用变化特征,并从自然因素和人类活动2个方面对交错带土地利用变化的驱动力进行了较为深入的探讨。结果表明:肖塘交错带土地利用类型以未利用地和荒漠林地为主。与1973年相比,2010年荒漠林地面积大幅下降,占研究区的5.06%,而农田则急剧增加,占研究区的4.67%,未利用地有所增加,占0.63%,草地有所减少,占0.21%。研究区荒漠林地主要转化为农田,草地转化为农田和荒漠林地,农田面积的增长主要来源于荒漠林地。交错带内生态退化加剧,生态破坏严重。人类的生产生活方式对研究区的土地利用方式有着深刻的影响。
Land use data in the ecotone of the middle reaches of the Tarim River from 1973 to 2010 were interpreted from Landsat remote sensing satellite images and built by GIS and RS.In addition, the dynamics of land use changes was quantitatively explored,and its driving force was deeply discussed from aspects of nature and human. Results showed that the unused land and desert woodland were the main land use types in the area. Compared with the data of 1973, in 2010, desert woodland decreased sharply, accounting for 5.06% of the study area. Farmland increased dramatically, accounting for 4.67% .Unused land increased,accounting for 0.63%. Grassland reduced to 0.21% ,respectively.Desert woodland has been mainly converted to the fa.nnland. Grassland has been shifted into farmland and desert woodland. The increase of farmland mainly originated from desert woodland. The study area faces such issues as ecological destroy and aggravation ecological degeneration.The land use patterns in the research area were deeply influenced by human farming and living activities.
出处
《现代农业科技》
2015年第15期335-338,345,共5页
Modern Agricultural Science and Technology
基金
新疆农业大学校前期资助项目(XJAU201114)
