作　　者： ; ; ;

机构地区： 中国科学院

出　　处： 《遥感技术与应用》 2012年第2期289-295,共7页

摘　　要： 根据1984、2000、2006和2009年4期Landsat影像,运用分类后比较法以及土地利用演变的时空分析方法,探讨和分析天津滨海新区和河北曹妃甸地区近30a的土地利用变化特征和规律,阐明了研究区土地利用变化的区域特点,为土地可持续利用提供有效的决策支持。结果表明:坑塘水面是两个区域最主要的土地利用类型,尤其在曹妃甸地区,坑塘水面占用比例达60%～70%。1984～2009年两地区围海造地面积呈增加趋势,有"向海洋要土地"的发展趋势。土地利用变化的主要特征为耕地减少和建设用地、坑塘水面增加,2000年以后土地利用变化趋势尤为显著。滨海新区建设用地重心有西南方向移动的趋势,其他土地利用类型重心均有向东向北迁移的趋势,曹妃甸地区各土地类型均有明显的南移趋势。 There have been a great changes for the land use and land cover in Tianjin Binhai new area and Caofeidian region since 1980s.Based on four years（1984,2000,2006 and 2009） Landsat images,this paper analyzed land use change characteristics for the past 26 years in the two study areas.This study adopted the maximum likelihood classification and post-classification change detection methods to monitor the land use dynamic variation characteristics,which clarified the regional differences of land use change,and provided valid decision for sustainable land use.The results indicated that：① The pond was the major land use type in the two areas,especially in Caofeidian,where the pond area covered 60%~70% of the total land area.The total land area showed an increasing trend with land reclamation from sea area since 1980s;② the reduction of cultivated area and the increasing of construction sites are the main features of land use change in two areas,especially after 2000;③ in the Binhai new area,the center of land trend for construction sites had mores towards southwest,whereas the other land use types had migrates to northeast.In Caofeidian region,the center of land use types had obvious southward trends.

关 键 词： 土地利用分类 变化监测 时空分析

领　　域： [自动化与计算机技术] [自动化与计算机技术]