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《Journal of Anhui Agricultural Sciences》 2012-03
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Ecological Security Assessment of Sewage Irrigation Area

LI Hai-bo et al(College of Population Resource and Environment,Shandong Normal University,Jinan,Shandong 250014)  
The study area was divided into a series of grid of 100 meters multiplied by 100 meters,and the information about the impact factors on eco-security in each grid was obtained.Then the ecological safety index of each unit grid was calculated through influence factor analysis and ecological safety evaluation models,and finally the ecological security situation grading of Yellow River basin was obtained.The result showed that the area gave priority to safety and basic security,which accounted for 45.2% and 39.6% of total study area,the average security index was 69.7,which belonged to the basic safety level.
【Fund】: 山东省自然科学基金资助项目(Y2008E10);; 中德科技合作项目(2007DFB70200)
【CateGory Index】: X826
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