RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2009, Vol. 18 >> Issue (2): 186-.

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ON ECOLOGICAL SECURITY PATTERN BASED ON REGIONAL DEVELOPMENT ALONG THE YANGTZE RIVER

WANG Weixia1|2| ZHANG Lei3| DONG Yawen1| HUANG Wenyu1   

  1. 1.Nanjing Institute of Geography and Limnology| Chinese Academy of Sciences| Nanjing 210008| China； 2.Graduate University| Chinese Academy of Sciences| Beijing 100049|China； 3.Jiangsu Academy of Environmental Sciences|Nanjing 210036|China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-02-20

Abstract:

As the exploitation along the Yangtze River is developing in greater depth，the contradiction between regional ecological security and development and construction is becoming increasingly conspicuous.With the conception of interaction between construction along the Yangtze River in Jiujiang and spatial structure of regional ecosystem and function of the ecosystem service，adopting the technology of RS and GIS，based on minor watershed units，choosing industrial concentration area，town residents' ground and road structure as the token of influence of constructing activity，with the river class，the amount and the area of lake，geography type，slope，overlaid plant，category of important ecosystem function area as the token natural ecosystem background，environmental pressure plots are posed after comprehensive superimposed.According to it，an ecological security pattern should be established，consisting of 5 ecological sources and 9 ecological corridors for functions of resisting pollution，abating pressures and protecting biodiversity so as to abate pressure，resist pollution，stabilize regional ecosystem and impel the construction，make the environment protection space and regional economic and social development.And then the important protection areas of ecology function should be governed and preserved.

Key words: regional development along the Yangtze River, environmental pressure plot, ecological security pattern, ecological spatial governance, Jiujiang City

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