Eco-Economic Evaluation of Farmland Water Conservancy Project Based on Energy Analysis *

rd , 2012; revised: Sep. 19 th , 2012; accepted: Sep. 27 th , 2012 Abstract: Engineering project evaluation is an important means of farmland and conservancy project during investment decisions. However the present means cannot make a thorough quantitative analysis of all cost and benefit. Aiming at this problem, a new thinking of using energy analysis to make an ecological economic evaluation of farmland and conservancy project is put forward in this paper. With example of Zhaokou Irriga- tion Area II Project, the complete analysis and calculation are made from three aspects such as economic, so- cial and ecological environment. The paper demonstrates the feasibility of farmland and conservancy project at the angle of ecological economic evaluation according the EmCBR and its criteria. The results show that the most affected factor in the eco-economic evaluation of farmland water conservancy project is the ecological environment, followed by economic and society. Their EmCBR values are 6.55, 4.44, 281.37, respectively. Therefore, this project has great social benefits. It is shows that the project is practical based on the eco-economic evaluation.