Examination Of Ecological Sensitivity And Integrated Evaluation Of Eco-environmental Status In Qingyang City

The Qing Yang city is located in the loess hills ravine area, It is representative fragile organism's habits area.The article tried to do examination of ecological sensitivity and integrated evaluation of Eco-environmental Status in Qingyang City at the same time. Examination of ecological sensitivity can forecast the probability about the ecological environment problem appear while it received disturbance. Integrated evaluation of Eco-environmental Status can help us know that the degree superior or inferior because of structure and function's changing.If we can contrast both,it will be more rational and more effective to deal with ecological environment problem. Research method as follows:1.The method of examination of ecological sensitivityWe work out the index system in Qingyang by the factor chosing principle of examination of ecological sensitivity and the provisional rules of ecological function.Of cause,we also consider of the reality in Qingyang and the research results of other scholars.The index system contain five A class indexes and sixteen B class indexes.By the Analytical Hierarchy Process,AHP,we got the values of indexes.Finally,we could get the results by calculate formula.2.The method of integrated evaluation of Eco-environmental StatusThe eco-environmetal status of Qingyang was evaluated by the State Environmental Protection Administration of China issued, the evaluation index are as organism abundance index, vegetation cover index, river density index, degradation index and environmental quality index. We could get the results by calculate formula.The results showed that the ecological sensitivity in Qingyang be divised into four degrees and the whole eco-environmetal status of the region may be grouped into the second rate class.By analysis of both,we know that water and land resouces are the major problems in Qingyang.