Effects of Desertification Control Project Based on Windbreak System in Daxing County, Beijing

Windbreak system consisting of the forms of net, belt, sheet and point, has improved local ecoenvironment greatly and promoted the level of social economy and local people's living. The result of environment impact assessment shows that the quality of eco-environment has been improved obviously and the impact process is mainly positive after building of windbreak system in Daxing County of Beijing, a dry-sub-humid region. Effects of windbreak system and their environmental impacts are analyzed scientifically and reasonably in this paper. The study will enrich the theory of environment impact assessment and extend the scope of research, and will provide experience for the construction of windbreak system in the region.