生态环境学报2011，Vol.20Issue(11)：1653-1658,6.
近17年鄱阳湖区景观格局动态变化研究
Dynamic changes of landscape pattern in Poyang Lake region over the recent 17 years
摘要
Abstract
Based on the remote sensing images of 1989, 1999 and 2006, dynamic changes of landscape pattern in Poyang Lake region were studied with ARCGIS and FRAGSTATS in recent 17 years. The result shows that the landscape pattern of Poyang Lake region had changed significantly due to both natural factors and human activities intervention. Analyzed from landscape level indexes, the landscape fragmentation was increasing, the different landscape patches tended to be uniform and scattered distributed, and the shapes of patches were becoming more complex and irregular. Patch types analysis indicates that the fragmentation degree in water bodies was increasing; the patches were becoming smaller, the shape of patches was more complex, and the hydraulic linkage between water patches was weakening. No evident changes were detected in grassland and forest which presented stable structure. Cropland was the dominant landscape; however, it became more irregular and fragmentized. Bottomland was influenced by hydrological condition and silt deposition more significantly. Its fragmentation degree was increasing during 1989-1999, and decreased in 1999-2006. Variation of construction land was most obvious with increasing fragmentation and patches linkage. Unused land was relative small, the fragmentation was decreasing, and the shape of patches was becoming simpler.关键词
鄱阳湖区/景观格局/动态变化/遥感Key words
Poyang Lake Region/ landscape pattern/ dynamic changes/ remote sensing分类
资源环境引用本文复制引用
周云凯,白秀玲..近17年鄱阳湖区景观格局动态变化研究[J].生态环境学报,2011,20(11):1653-1658,6.基金项目
国家自然科学基金项目(41101089 （）
41001319) （）
河南大学科研启动项目(2009081 （）
2009080) （）
