基于RS和GIS的武川县景观格局变化研究  

Study on Dynamic Changes of Landscape Pattern of Wuchuan in RS and GIS

作　　者：王文玲[1] 高永[1] 杨光[1] 韩彦龙[1] 张琪[1] 王颖[1] 雷虹娟 

机构地区：[1]内蒙古农业大学生态环境学院,内蒙古呼和浩特010018 [2]内蒙古包头市达茂旗林业局

出　　处：《北方园艺》2014年第9期97-100,共4页Northern Horticulture

基　　金：国家科技支撑计划资助项目(2011BAC07B02-03)

摘　　要：利用ArcGIS和Fragstats软件,以1990年、2000年和2007年3期TM遥感影像为基础数据源,建立武川县土地利用遥感影像解译标志,获取各景观类型属性数据和图形数据,建立空间信息数据库,研究了武川县近17年景观空间格局动态变化。结果表明:在整个土地覆被景观中,耕地、林地和草地的面积相对较大,耕地的异质性最高,居民及建设用地异质性较小,水域最小。林地的面积逐年增加,破碎化程度逐年减少,连通性逐年增强,说明在退耕还林和京津风沙源治理工程作用下,武川县的生态环境建设效果明显。区域内未利用地主要是沙地、盐碱地呈大面积连续分布,说明区域内土地荒漠化的形势仍非常严峻,必须继续坚持退耕还林还草政策,加强生态环境建设。Taking Wuchuan as the study area,using ArcGIS and Fragstats software to 1990,2000 and 2007 3 TM remote sensing image as based data sources, to establish the land use remote sensing image interpretation signs, to get all types of property landscape data and graphics data, a spatial information database, the dynamic landscape pattern change of Wuchuan county in recent 17 years were studied. The results showed that,farmland,woodland and grassland in the entire land landscape were relatively larger, the heterogeneity of farmland was the highest, that of residential and construction land were smaller, waters were minimum. Forest area increased year by year, the degree of fragmentation decreased, connectivity gradually enhanced, the ecological environment construction effect of Wuchuan county obviously was obvious under in returning farmland to forest and the role of Beijing and Tianjin sandstorm source control projects. Area of unused land was mainly sand and saline showed a continuous distribution of a large area, indicating that the area of land desertification situation was still very serious,we must continue to uphold the policy of returning farmland to forest and grassland, improve the ecological environment.

关 键 词：RS GIS 景观格局 武川县 

分 类 号：P901[天文地球—自然地理学]