Study Of Ecosystem Health Assessment In Huangqian Small Watershed In Mount Tai

River basin as a whole, is an open system who centers for water sports to achieve energyflow, material recycling and information transmission. With the rapid development ofeconomy, the phenomenon such as human is not reasonable to river basin water resources’development and utilization, the destruction of water ecological environment, and so on, ismore and more cause the extensive concern of society. As the background, this studydiscusses the concept and connotation of watershed ecosystem health, and health evaluationof specific methods, and put the Huangqian watershed in Mount tai as the research object fora practical research. There are the following research results:(1) It roundly statements the rivers and watershed ecosystem health evaluation at homeand abroad research situation, And on this basis, it analysis watershed ecosystem healthevaluation related theory and concepts involved.(2)According to the analysis of the related theoretical basis, It puts forward the conceptof river ecosystem health and explores its connotation, it also summarizes the watershedecosystem health evaluation involved in all aspects of the factors.(3) In order to select the understandable, quantification, monitoring, and fullyhighlight showed river health statusof sensitivity index. I refer to the literature of scienceand technology about ecological health of river and basin evaluation over the years, I select61representative evaluation index system from them. And from four aspects of habitat,biological, water environment and its service function and human activity, on the basis ofexpression index name, content and meaning as well as the quantification method,I alsoanalysis the aspect of index relation and correlation,and I classify and merge the index.FinallyI select the high usage rate, high degrees of approval, important significance index which canreflect the river health, as the sensitivity indexof river health.(4) From four aspects of habitat, biological, water environment and its service functionand human activity, according to the selection of sensitivity index, the connotation ofecological health basin, and the evaluation of watershed health involving various factors etc,I construct a framework model of watershed ecosystem health assessment.(5) This paper analyzes the meaning of index and the quantization method, establishesthe standard classification table of index health and use the order relation analysis methodto calculation the index weight,finally I use the comprehensive health index of watershedecosystem to assess the comprehensive health status of river basin ecosystem.(6) Taking Huangqian watershed in mount tai as the research object, using the established the framework model of watershed ecosystem health assessment, this paperevaluation roundly and analysis the health of Huangqian watershed ecological system toconclude that the ecological system in Huangqian watershed’s health is in critical state,itanalyse the causes of this state and the changes in the situation in the future time, and putforward corresponding suggestions and measures.