Ecological Benefit Evaluation of the Beijing-Tianjin Sandstom Source Control Project in Beijing

The Beijing-Tianjin sandstorm source control project started formal implementation in 2001, This paper construct a set of ecological benefit evaluation system about the Beijing-Tianjin sandstorm source control engineering of Beijing, using the monitoring data of Beizhuang monitoring stations of Miyun country of Beijin, Choosing analytic hierarchy process(AHP) to evaluate the ecological environment of Beijing, The result shows that Beijing ecological environment is becoming better year after year and the Beijing-Tianjin sandstorm source control project effect is remarkable.