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[1]ZHANG Pei,XU Hailiang,DU Qing,et al.Discussion on Ecological Condition Change of Khotan River Basin in 1990-2010[J].Research of Soil and Water Conservation,2016,23(04):174-178,184.

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Discussion on Ecological Condition Change of Khotan River Basin in 1990-2010

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 23 Number of periods: 2016 04 Page number: 174-178,184 Column: Public date: 2016-04-28

Title:: Discussion on Ecological Condition Change of Khotan River Basin in 1990-2010

Author(s):: ZHANG Pei^1,2, XU Hailiang¹, DU Qing³, ZHAO Xinfeng¹; 1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Xinjiang Academy of Surveying & Mapping, Urumqi 830002, China

Keywords:: forest and grassland area; ecological index (EI); farmland expansion; Khotan River basin

CLC:: K903;X22

DOI:: -

Abstract:: The change of the eco-environment in arid continental river basin is related to human survival and development of the society. In order to discuss the eco-environment change in Khotan River basin during the period from 1990 to 2010, variation of forest and grassland area and ecological condition are analyzed based on Landsat-TM and CBERS images in 1990, 2000 and 2010, and combining with transition matrix and ecological index methods. It is revealed that:(1) amplitude of natural forest and grassland area declines significantly, while artificial forest increases rapidly during the period from 2000 to 2010; (2) the ecological index in 1990—2000 and 2000—2010 decreased by 0.1% and 1.19%, respectively; (3) the farmland expansion is the fundamental reason for natural forest and grassland area shrinking as well as the environment condition degradation.

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