【摘要】 以太原市1990年和2000年的Landsat TM影像为基本图件,在遥感和地理信息系统技术支持下,用土地利用指数定量分析了该区域土地利用的时空格局和演变趋势,并对其原因进行了初步探讨.结果表明:1耕地和林地是研究区域内居优势地位的土地类型,但这两种类型正不断地向其他土地类型流转,建设用地呈大幅度增长,水域面积变化较小.2 10年来研究区域内的土地利用类型发生了复杂的相互转换,尤以林草交错带和农草交错带变动剧烈.3 10年来区域内耕地、林地、草地、水域以及未利用土地的重要度均有所下降,城镇的重要度则有较大幅度的增加.城镇用地已经取代耕地而成为区域内重要度最高的土地利用类型.4 10年来全区土地利用破碎度呈增加趋势,土地利用图斑数不断增加,但城镇的破碎度反而有所降低.5人口与经济的增长、城市化进程的加快是引起研究区土地利用格局变化的最主要因素.更多还原

【Abstract】 Land-use/cover change(LUCC) in Taiyuan city is analyzed based on remote sensing(RS) images in 1990 and 2000.Geographical information system technology,mathematical statistic methods,and the dynamic model of land use are used to research the spatial-temporal pattern and the trend of LUCC.Some preliminary explorations of driving forces are carried out at the same time.From the study,the following conclusions are drawn: ① Cultivated land and woodland were two dominant land use types,however,the area of the two types was decreasing with time.The area of building land was increased dramatically,and the water area was equable correspondingly.② The region’s land-use fragmentation index increased,especially those interlaced areas between cultivated land and grass land and between woodland and grass land.③ The building land had replaced the cultivated land,which is the most significant land use type. ④ The land-use state trended to fragmentation while the building land had a gathering trend in ten years.⑤ The pressure from the growth of population and economy,and accelerated process of urbanization were the main factors that changed the pattern of land use in studied area.更多还原