Accounting And Analyzing On The Value Of Construction Of Hydropower Station On Eco-Environment Impact

The Jinping Cascade Hydropower Stations which are made up of Jinping Hydropower Station I and Jinping Hydropower Station II are constructing on the main stream of the Yalong River in Sichuan Province. The builting of them will bring enormous economic and social benebits, but also some negative impacts to the resources of eco-environment. Through theoretical analyzing and mathematical accounting, the author analysis the factors of the Jinping Cascade Hydropower Stations on eco-environmental resources, quantify the loss value of negative impact and research on the advantages and disadvantages of cascade hydropower stations and a mechanism for compensation.The author study on the accounting system of the loss value of eco-environmental resources due to construction of hydropower station, base on the theory of natural resources value, studies on eco-environmental impact of hydropower stations and the reality that cascade hydropower stations have become the main style of hydropower development. The accounting system consist of theory on the value of eco-environmental resources, analyzing and accounting on the factors of the cascade hydropower stations on eco-environmental resources, judgement on overall value of hydropower station using the analysis method of advantages and disadvantages, as well as the theory of economic compensation. Jinping Hydropower Station I is the development of hydroelectric-dam and Jinping Hydropower Station II is the water-Station.The different ways of development lead to different effects to eco-environmental. On the basis of the accounting system, the different effects, as well as the features of project-affected location and natural environment, first of all there is an analysis of the 13 impact factors of the Jinping Cascade hydropower stations on the ecological environment, which include forest resources, immigration, cultivated lands, up and down the river siltation changes, water environment, geological environment, the construction period environment, population health, the micro-climate, biodiversity, wetlands, grasslands and landscape. Then an accounting on the loss value of these factors in a year is made according Market Valuation Method, Evaluation of Alternative Market Method and Evaluation Survey Method. So that the author accounts the total loss value of the Jinping Cascade Hydropower Station on eco-environment resources in the running life. Then, using the analysis of advantages and disadvantages, judge the feasibility of the projection according their use-value, compensated value and the total loss value, also study on whether the financial compensation is reasonable and realistic, and finally suggest measures and proposals.The results are as follows: the most serious impact factor for the Jinping Cascade Hhydropower Stations on eco-environmental resources is the loss value of flood of forest resources. The total loss value of the stations in the running years on the eco-environment resource convert into present price in 2008 is 38,179,792,600 yuan, and indicators of the pros and cons is 0.81. That shows the economic compensation of eco-environment loss is not enough. As the hydropower projections have started, they call for dynamic compensation on the construction and run-time, for the amount of compensation required at least 22,055,467,600 yuan, while compensation coefficients is 0.59. The financial compensation can dynamic value-added to Jinping Cascade Hydropower Stations.The impact loss of eco-environmental at Jinping Cascade Hydropower Stations is a typical case, as the research results can provide guidance and reference for account and research on other cascade hydropower stations's impact loss of eco-environmental resources.