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[1]ZHENG Jiaoqi,WANG Huabin,LIU Weiling,et al.Evaluation on the Change of Ecosystem Functions in Liao River Basin During the Preriod from 2000 to 2010[J].Research of Soil and Water Conservation,2015,22(06):245-249.

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Evaluation on the Change of Ecosystem Functions in Liao River Basin During the Preriod from 2000 to 2010

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 06 Page number: 245-249 Column: Public date: 2015-12-28

Title:: Evaluation on the Change of Ecosystem Functions in Liao River Basin During the Preriod from 2000 to 2010

Author(s):: ZHENG Jiaoqi^1,2,3, WANG Huabin², LIU Weiling³, ZHANG Linbo³; 1. Beijing Satimage Information Technology Co., Ltd., Beijing 101300, China;
2. Satellite Survey and Mapping Application Center, NASG, Beijing 101300, China;
3. State Environmental Protection Key Laboratory of Regional Ecological Processes and Functions Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

Keywords:: ecosystem functions; Liao River basin; land use

CLC:: X171

DOI:: -

Abstract:: Ecosystem functions refer to the natural environmental conditions and effectiveness for human survival and utility conditions, and are closely related to the life and production of human. Based on RS and GIS technology, using TM remote sensing images, NDVI of vegetation and meteorological data, change of land use types, landscape pattern, vegetation coverage, water conservation, soil erosion and biodiversity conservation were calculated in order to analyze the basic status and change trend of ecosystem functions in Liao River basin in the last decade. The results showed that in recent 10 years, the urban area expanded in the study area, but had little damage to ecological land; vegetation coverage, ability of water conservation and biodiversity conservation enhanced; while soil erosion exacerbated due to the rise in precipitation to some extent. Overall, ecosystem functions in Liao River basin were basically stable and had a better trend; but impaction on arable land and ecological land from urban expansion should be noticed.

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