北京市永定河流域土地利用/覆盖变化研究  

Study on Land Use-Cover Change Of Yongding River Watershed in Beijing Section

作　　者：王海平[1,2] 冯仲科[1,2] 孙赫[1,2] 李影[1,2] 曹孟磊[1,2] 

机构地区：[1]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083 [2]北京林业大学测绘与3S技术中心,北京100083

出　　处：《林业调查规划》2011年第3期15-20,共6页Forest Inventory and Planning

基　　金：永定河生态服务价值与目标体系研究(D090409004009003);国家十一五科技支撑计划课题"城镇体系规划监测关键技术研究"(2006A14B02)

摘　　要：借助于遥感和地理信息技术,以永定河（北京段）流域1978、1988、1999、2004、2005年5期TM遥感影像为主要数据源,结合若干地形数据库资料,统计永定河31年间水域、草地、耕地、林地、建筑用地、未利用地六大土地类型的面积变化情况,通过分析单一土地利用平均动态度、单一土地利用平均转出率和转入率等指标,对永定河（北京段）流域土地利用/覆被变化的格局与过程进行了定量研究.结果表明：①31年间,永定河（北京段）流域的土地利用/覆盖面积呈现一定程度的波动.1978~2004年各类面积占总面积的比例由大到小为有林地〉耕地〉建筑用地〉水域〉未利用地〉草地;2004~2009年比例变化为有林地〉耕地〉建筑用地〉未利用地〉水域〉草地.②在1978~2009年间,水域、未利用地、建筑用地3个土地类型转化比较剧烈;草地在1988~2004年间变化幅度大,转入、转出率较高;耕地减少;林地则呈现增加态势.On the basis of remote sensing and geographical information system,remote sensing images of Yongding River（Beijing Section） of 1978,1988,1999,2004 and 2005 have been used as the main data source.Combined with the terrain databases,area change of six land use types（water,grassland,farmland,forestland,construction site and unutilized land） have been calculated during the 31 years.By analyzing the mean dynamic state of land use,mean import and export rate of single land use,quantitative research of land use and cover change of Yongding River（Beijing Section） has been carried out.The following results have been achieved.Firstly,during the 31 years,there has shown certain fluctuation in land use pattern of Yongding River（Beijing Section）.From the year 1978 to 2009,the area of each land type from large to small is like this： forest landfarm landconstruction site waterunutilized landgrassland.While from the year 2004 to 2009,the result is like this：forest landfarm landconstruction siteunutilized landwatergrassland.Secondly,during the year from 1978 to 2009,there has had severe change in the transformation among water,unutilized land and construction site.The grassland has experienced a huge change during the year from 1988 to 2004,with high import and export rate.And the area of farm land decreased while the area of forest land showed increasing trend.

关 键 词：土地利用/覆盖 遥感(RS) 地理信息技术(GIS) 永定河流域 

分 类 号：S757.21[农业科学—森林经理学] F301.24[农业科学—林学]