Relationship between land use pattern and water quality change in Fuxian Lake basin
YANG Yanan1,2, WANG Jinliang1, CHEN Guangjie1, XI Xiaohuan2, WANG Cheng2
1. School of Tourism and Geographical Science, Yunnan Normal University, Kunming 650500, China;
2. Key Laboratory of Digital Earth, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China
The water quality of the Fuxian Lake basin has been deteriorating during the past 20 years. To evaluate the impacts of land use changes on water quality, the authors used Landsat TM and ETM+ from 1992 to 2010, in combination with GIS methods and correlation analysis, to explore the relationships of water quality with land use structure and landscape patterns respectively in the period of 1992-2010. The results showed that the surface water area, forest coverage and cultivated land area all displayed a decreasing trend, with a negative correlation of water quality with water area, forest coverage and cultivated land area respectively. There was a rapid expansion of transportation and construction land, which exhibited a significant positive correlation with water quality. Both the landscape diversity index and Shannon's diversity index (SDI) exhibit a significant positive correlation with water quality, and landscapes become more fragmented with an increase in patch number and shape complexity.
杨娅楠, 王金亮, 陈光杰, 习晓环, 王成. 抚仙湖流域土地利用格局与水质变化关系[J]. 国土资源遥感, 2016, 28(1): 159-165.
YANG Yanan, WANG Jinliang, CHEN Guangjie, XI Xiaohuan, WANG Cheng. Relationship between land use pattern and water quality change in Fuxian Lake basin. REMOTE SENSING FOR LAND & RESOURCES, 2016, 28(1): 159-165.
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