期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2010
卷号：XXXVIII - Part 2
页码：581-585
出版社：Copernicus Publications
摘要：During the period of 1978~2005, substance changes have taken place of coastal wetland in Pearl River Estuary as the result of interaction of human and natural factors. To investigate the spatial and temporal variations of coastal wetland in Pearl River estuary, Landsat-MSS images in 1978 and Landsat-TM images of 1995 & 2005 year were processed, and wetland database of the three periods was established based on these remote sensing images. The result showed that: (1) area of natural wetlands decreased while the area of construct wetland increased distinctively; (2) in the period of 1978~1995, coastal wetland area decreased by 3.3%, while it decreased by 18.3% in period of 1995~2005; (3) Among 6 administrative districts in the study area, the wetland dynamic degree can be sorted in a descending order as: Zhuhai, Shenzhen, Macao, Dongguan,Zhongshan and Guangzhou; (4) the centroids of wetland in Pearl River Estuary coastal zone moved to north by a linear distance of 0.6 km during 1978~2005, and move to south east during 1995~2005 by a linear distance of 6.1 km; (5) according to the changes of coastlines in Pear River Estuary, area of sea reclamation during 1978~2005 along coastline inland in Zhuhai, Macao, Zhongshan, Guangzhou Dongguan, Shenzhen are 12439.29，502.60，2946.45，5372.21，1815.96，6317.88 hectares respectively
关键词：Pearl River Estuary; Coastal Wetlands; Change Range，Degree of Dynamic Change; Centroid displacement
