Construction of regional ecological security pattern for Shunyi District,Beijing

Constructing regional ecological security pattern is the most important foundation for regional ecology management.In this paper,the authors put forward the technology route which selected ecological environment investigation and analysis,key ecological problem identify,regional ecological security assessment and regional ecological security pattern construction as core approaches,and did an exploratory research in Shunyi District,Beijing.The results showed that the main ecological systems in Shunyi included forest ecological system,wetland ecological system,town ecological system,farmland ecological system and so on.Lower biodiversity,wetland shrinking,water pollution and sandy desertification are the main ecological environmental problem in this region.For regional ecological security,regions with high level ecological security mainly included the regions along Chaobai River,mountains in the northeast and most areas in the east of Chaobai River;and regions with low level ecological security always in the west of Shuyi,especially the southwest regions.According to this,it should build ecological controlling bell around the main towns aggregation,recover natural rivers like Chaobai River,protect Hanshiqiao wetland,mountain forest ecological system of northeast regions and large patches along Chaobai River,build ecological corridor along roads to systematically construct regional ecological security pattern for Shunyi.