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Remote sensing monitoring of wetlands dynamics in the Manas River basin from 1998 to 2015 |
| WEI Benzan1, 2, FU Lihua1, FAN Fang1, ZHANG Ce1, JIE Wenhui1, 2, DONG Shuangfa1 |
1. Airborne Survey and Remote Sensing Center of Nuclear Industry, Shijiazhuang 050002, China;
2. Faculty of Earth Sciences, East China Institute of Technology, Nanchang 330013, China |
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Abstract Using TM data of 1998, 2005, 2010 and land change survey remote sensing data, in combination with the visual interpretation and GIS technology, the authors extracted boundaries of the Manas River basin wetlands, and analyzed the influence produced by climate and anthropogenic factors on dynamic changing of wetland. The results show three different relationships. Firstly, the degradation of Manas River basin wetland was more serious from 1998 to 2015, especially lake wetlands and marsh wetlands. Meanwhile, wetland had shrunk dramatically from 2010 to 2015. Secondly, the period of 2010—2015 had the highest annual changing rate of lake wetlands and marsh wetlands, reaching respectively -12.90% and -14.30%. Thirdly, human activities have become the most important factor for wetland change. The study of the relationship between human activities and climate change as well as wetlands response reveals that the human factor has become the more important factor than climate for wetland change.
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| Keywords
time pyramid model
resource satellite
statistical analysis
mass data processing
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Issue Date: 24 November 2017
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2017,
Vol. 29
