作　　者： ; ;

机构地区： 华南理工大学土木与交通学院

出　　处： 《安徽农业科学》 2010年第8期4180-4183,4186,共5页

摘　　要： 以1985、2000年两期LandsatTM/ETM+遥感图像和基础地理信息数据为基础,利用RS和GIS信息技术、空间分析技术和景观生态学方法,对东江流域15年来的土地利用/覆被变化进行了分析。结果表明,该流域土地利用以耕地和林地为主;15年来,林地大幅度减少,建设用地面积显著增加,耕地有所增加,水域和未利用地相对变化幅度不大;土地利用类型转移的主要方向是林地转化为耕地和建设用地、耕地转化为建设用地;流域土地利用变化存在明显的区域差异;流域景观多样性增加,破碎度加大,人类活动对流域土地利用格局的影响越来越大。 Based on Landsat TM/ETM＋ remote-sensing images and basic geographic information data in 1985 and 2000,the changes of land use/land cover in Dongjiang River Basin in recent 15 years were analyzed by using RS and GIS information acquisition technology,spatial analysis technique and landscape ecology method.The results showed that the major land covers were cropland and woodland.In recent 15 years,the area of woodland sharply decreased,the area of construction land increased significantly,cropland increased.The relative change extent of water area and unused land was little.The main directions of land use types transfer were the conversions between woodland,cropland and construction land,the conversions between cropland and construction land.The land use changes of areas had obvious regional difference.The landscape diversity of areas increased and the fragment of the landscape degree enlarged.The influences of the land use patterns of areas were more and more distinct by human activity.

关 键 词： 土地利用 土地覆被 东江流域 变化特征

领　　域： [农业科学]