The Evaluation Research Of Beijing-Tianjin Sandstorm Source Control Project's Ecological Benefits

Beijing and Tianjin Sand Source Control Project is aim to improve the ecological environment of Beijing, Tianjin and the surrounding areas, reduce the hazards of sand storms, and has great strategic significance being an ecological construction. The implementation of the project is directly related to the sustainable development of our economic and social and the goal of constructing the well-off society. So the project has both great practical and far-reaching historical meaning. Based on the data of monitorings, investigations and experiments carried out by the Beijing Municipal Bureau of Landscape and Forestry and Beijing Forestry University, by special statistical monitoring, field and laboratory experiments and some other ways, combined with the expert rating method, mathematical models and so on to analyse the related research by home and abroad experts plus the actual situation of Beijing and Tianjin sand source control project in Beijing, then establish the evaluation index system of the ecological benefits of Beijing and Tianjin sand source control project.This article is based on the status of the project in Beijing, through the sample survey of the Beijing and Tianjin sand source control project and give all the indexes their grades, carried out the evaluation and analysis of ecological benefits of the project, and count out the economical benefits of the project, then we could evaluate the project objectively. The results show that the score of Beijing Tianjin sand source control project ecological benefits in Beijing is 69.71 points, is in superior level, Planting trees and grass have saved 163 million tons of water, the benefits though soil conservation is up to 115,838,300 yuan, the benefits of fixing carbon and releasing oxygen is obvious, the total of vegetation and soil carbon sequestration capacity reached 2.4812 million ton, and the value of ecological benefits reached 1.916 billion yuan. Through the calculation step by step, found that the ecological benefits is well, and the ecological function of maintaining ecological stability tend to the best condition.There are still some problems exist in the project implementation and management areas, such as the following industry development lagged behind, the use of the outcome of project is scared, and some areas lack of protect.According to these problems, I provided some advises,in order to make the best use of the Beijing Tianjin sand source control project and promise the success implementation of the project later.