Analyzing the land use changes in the Poyang lake region

35th International Symposium on Remote Sensing of Environment

地球科学;生态环境科学

Zhang, Z.B.^1 ; Shang, Y.J.^2

School of Geography Sciences, Southwest University, No.2 Tiansheng Road Beibei District, Chongqing, 400715, China^1

College of Resources and Environment, Southwest University, No.1 Tiansheng Road Beibei District, Chongqing, 400716, China^2

关键词: Construction land;    Development stages;    Environmental problems;    Fresh water lakes;    Land-use change;    Landsat images;    Poyang lake regions;    Quantitative changes;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/17/1/012063/pdf
DOI  :  10.1088/1755-1315/17/1/012063

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Poyang Lake is the largest freshwater lake in China. It faces a series of ecological and environmental problems, hence it is important and necessary to study the land use change in the Poyang Lake region. In this study, Landsat images in 1976, 1989, 1999 and 2009 were analysed using methods including quantitative changes of land use and land use degree change in the Poyang Lake region. Land use was classified into seven types: cropland, woodland, grassland, water body, construction land, bottomland and unused land. Cropland, bottomland and water body were decreasing while water body decreased relatively slowly. However, construction land, grassland, woodland and unused land increased to a certain extent. The land use degree was above national average. During the period 1976-1989, 1989-1999 and 1999-2009, land use was in adjustment stage, development stage and adjustment stage.