Based on land use data in 1990, 2000 and 2008, and previous theoretical research on land use and ecosystem service value, the authors estimated the ecosystem service value of this three years in Zhangjiakou City and examined the effects of land use change on ecosystem services value, in order to provide useful references for city development planning. Results indicated that the main land use types of Zhangjiakou are farmland, grassland and woodland, grassland decreased and construction land increased significantly. Ecosystem service value of different land use types are sorted in a descending order: woodland, farmland, grassland, water body and wetland; woodland, farmland and grassland contributed about 90% of the total service value. The total ecosystem service value of land use from 1990 to 2008 was on a declining curve, which was mainly due to the decrease in grassland and wetland. As for the service value of single service function, from 1990 to 2000, climate regulation decreased obviously, while raw material and water supply increased significantly; from 2000 to 2008, only climate regulation and food production’s service value increased.

As one of the four biggest forest shelterbelt programs in the world, the Three-North Forest Shelterbelt Program didn't achieve due defending purpose. As for the reasons, there are conflictions with Chinese climate pattern and population pressure, ecological principles and market rules since the very beginning of this program. New situation of Chinese desertification demands transformation of the Three-North Forest Shelterbelt Program，which should solve the conflictions firstly. And several suggestions，such as satisfying water demand of afforestation, peristing in diversification route and market direction and establishing ecological compensation mechanism, were put forward at last.