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Case Study on the Assessment of Ecosystem Health Based on Remote Sensing

Author: TianLei
Tutor: DongDeMing；FangChunSheng
School: Jilin University
Course: Environmental Science
Keywords: Ecosystem health Remote sensing GIS Land use Ordos
CLC: X826
Type: Master's thesis
Year: 2011
Downloads: 68
Quote: 0
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Abstract


In this paper, Ordos City ecosystem as the research object , based on the theory of ecosystem health , ecosystem health evaluation applied pressure - state - response (PSR ) model . 2009 TM image and its derived data as a source of basic information , were used to landscape the interpreted software and Excel software to calculate the index value of the pressure response . Standardization Law of extreme values ??of different dimensions to be standardized . Using SPSS principal component analysis of the normalized value different indicators weight values ??, and then calculated the pressure , state , response and health index score . Five grading criteria for the classification of the consolidated score . To use ArcGIS spatial expression of the results of each segment , combined with the actual situation of the actual area to identify main factors affect the study area ecosystem health . The research results show that the whole ecosystem health in Ordos City something differentiation was gradually getting better trend from west to east ecosystem health . The Dalateqi and the Dongsheng District Yijinhuoyi flag ecosystem health is relatively good ; the Otog and Etuokeqian relatively poor ecosystem health .

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CLC: > Environmental science, safety science > Environmental Quality Assessment and Environmental Monitoring > Analysis and Evaluation of Environmental Quality > Biological assessment, ecological assessment
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