| 生物土壤与生态 |
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| Monitoring and Evaluating the Land Cover Dynamics Based on the Entropy Weight Method: A case study of Yili and Bozhou area in Xinjiang, China |
| XIAO Ji-dong1, WANG Zhi2, SHI Qing-dong2, CHANG Shun-li2, XING Wen-yuan1 |
| 1.Xinjiang Climate Center, Xinjiang Meteorological Administration, Urumqi 830002, China; 2.Ministry of Education Key Laboratory of Oasis Ecology and the Institute of Arid Eco-environment, Xinjiang University, Urumqi 830046, China |
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Abstract Based on the MODIS (Moderate Resolution Imaging Spectroradiometer) data in combination with the land use types map of IGBP(International Geosphere-Biosphere Programme), and the entropy weight method, the land cover dynamic changes of Yili and Bozhou area in Xinjiang, China from 2003 to 2007 have been monitored and evaluated by making use of four indexes, namely net primary productivity, temperature and vegetation dryness index, modified soil-adjusted vegetation index and land surface temperature, which have significant meaning for the arid land cover evaluation. The results indicated that the different indices had different adaptability and indications for different land use types. Their comprehensive assessment results showed that there was obviously regional differentiation in land cover change of the study area. The relatively seriously degraded types lay in water, grassland, permanence swamp and city construction area, but forest, shrubland, desert grassland and farmland improved lightly, presenting a phase of "local amelioration but overall degeneration". Research proved that it is feasible to use the entropy weight method to monitor and evaluate land cover dynamic change by combining the several evaluation indices, and the results can provide a credible approach and valuable example for monitoring and evaluating land cover, desertification and vegetation change in arid area.
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Received: 11 January 2011
Published: 20 September 2011
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Cite this article:
XIAO Ji-dong;WANG Zhi;SHI Qing-dong;CHANG Shun-li;XING Wen-yuan. Monitoring and Evaluating the Land Cover Dynamics Based on the Entropy Weight Method: A case study of Yili and Bozhou area in Xinjiang, China. JOURNAL OF DESERT RESEARCH, 2011, 31(5): 1286-1292.
URL:
http://www.desert.ac.cn/EN/ OR http://www.desert.ac.cn/EN/Y2011/V31/I5/1286
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2011, Vol. 31 
