珠江口两岸城市景观格局变化差异化分析

Difference Analysis of Urban Landscape Pattern Change on Both Banks of Pearl River Estuary

采用Landsat-5 TM(1988、1995、1998年)与Landsat-7 ETM(2002年)遥感影像数据,将遥感影像数据、土地利用图和DEM等数据统一到同一坐标系和投影下,在ArcView软件环境下,将所有数据统一栅格化为30 m×30 m的GRID数据。通过Fragstats软件计算景观格局指数,选用研究区平均面积、斑块密度、景观分离度、边界密度、形状指数、分维数、聚集度、多样性、均匀度指数,对不同时期的土地利用景观格局及演变进行分析,揭示珠江口两岸景观格局的时空变化的差异化。

By using remote sensing image data of Landsat-5 TM（1988,1995 and 1998） and Landsat-7 ETM（2002）,remote sensing image data,land-use map and DEM had been put in the same coordinate system and projection.In ArcView software,all data had been rasterized as grid data of 30 m×30 m.By Fragstats software,landscape pattern indexes had been calculated.Based on the average area,patch density,landscape isolation,boundary density,shape index,fractal dimension,aggregation degree,diversity and evenness index,land-use landscape patterns at different periods and its evolution had been analyzed,revealing the differentiation of spatio-temporal change of landscape pattern on both banks of Pearl River Estuary.