Yuan River Hydropower Planning The Economic Evaluation Of Environmental Impact

Hydropower development in the basin of the ecological crisis and regional conflicts growing social background, to speed up the development of river basin water planning environmental impact assessment work has become an important area of social research. Practice has proved that water basin environmental impact assessment is to protect the ecological environment and promote harmony between man and nature, according to the value of ecosystem services, ecological impact preventive measures, the opportunity cost of sustainable development, integrated use of administrative and market measures, adjusting the environment of prevention, rehabilitation and construction of projects related to compensation and interest between the parties, realized in different regions, the harmonious development of different interest groups. Therefore, water basin environmental impact assessment carried out to help establish and improve the orderly development of renewable resources and share resources development and utilization of results.In this paper, the environmental impact on watershed related to hydropower planning concepts, theories and research methods based on description and analysis, based on, River Basin hydropower planning to Yuanshui example, the basin water planning for the economic evaluation of environmental impact studies, draw the following conclusions:1.on the environmental impact assessment, environmental impact of the economic assessment, planning, environmental impact assessment and other related concepts are described, Discusses the environmental impact basin hydropower planning the theoretical basis of economic evaluation: The utility theory of value in Western economics, Marxist economics, labor theory of value, the value theory of environmental economics.2.for river basin environmental impact of hydropower planning particularity, defines the scope of economic evaluation of space and time scales; From the valley of socio-economic and ecological environment of two main parts starting, On the environmental impact of river basin hydropower planning to make a relatively comprehensive analysis; Discusses the environmental value of domestic and international long evaluation method used, Including the market price of law enforcement, restoration cost method, shadow project method, opportunity cost, travel cost method, asset value method, protection expenditure approach, environmental features and will cost the investigation and assessment methods, etc, impact assessment of various methods used by the corresponding use.3.to determine the environmental impact of river basin water planning two major indicators: Including food production, fisheries production, power generation efficiency, water efficiency, irrigation efficiency, navigation efficiency, reduce the value of the greenhouse effect, immigration and entertainment value of the loss, including socio-economic indicators and include organic production, soil erosion, biodiversity Impact of flood storage reservoir sedimentation, water purification and made land features, including economic evaluation of environmental indicators.4.According to the principle of integrating theory with practice: Will establish the environmental impact of Hydropower Planning, Economic evaluation index system of the concrete used in the Yuan River Basin hydropower planning economic evaluation of environmental impact. The Yuanshui River chosen for the study area, on the River hydropower planning environmental impact assessment of specific value, Economic and ecological environment, social economy and overall effectiveness of the total cost of the visual form of display, The hydropower planning and implementation to predict the possible benefits and losses, the decision-making for the basin to improve water planning basis.The results showed that although the Yuanshui River have been built and are building hydropower projects to bring about socio-economic and ecological damage and impact to some extent, but in the long run, is the significant economic benefits. Basin water planning, implementation, annual net benefit to the economic 8,068,275,600 yuan, causing a net loss of 2,607,740,600 yuan, the net social benefit is 5,460,535,000 yuan. From the ecological environment and socio-economic part of the consideration, the plan is feasible. Can be seen, although the hydropower project under construction has been built on the Yuan River basin ecosystem effects can not be ignored, but the ecological compensation can make up, not irreversible.5.Due to time constraints and incomplete information, case studies, this paper adopted a more market value method and the recovery cost method, Does not take into account the discount. In future studies, should try to gather more information, targeted to establish the corresponding evaluation index system, and consider the discount, in order to more accurately predict the nature of the economic evaluation.