RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2010, Vol. 19 >> Issue (8): 953-.

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HEALTH ASSESSMENT OF PROTECTION FOREST BASED ON PRESSURESTATERESPONSE MODEL

WANG Qing1, LI Fucheng1, LI Guorong1, MU Changlong2   

  1. (1. School of Environmental Resources and Engineering,Southwest University of Science &|Technology, Mianyang 621010, China|2. Sichuan Academy of Forestry, Chengdu 610081, China)〖
  • Online:2010-08-20

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Abstract:

Protection forest health assessment is the basic programs for improving its ecological service function and scientific management. Based on the PressureStateResponse (PSR) model,the health assessment index system included 20 indices was constructed for protection forest in the upper reaches of the Yangtze River,and each weight of the indices in the system was evaluated by analytical hierarchy process (AHP)，and modified by entropy technology.Utilizing the method of health indices to assess the state of main forest community in the sampling plots,the results showed that (1) The average health index in the Guansi River Valley was 4695；(2)The forest health data of tested forest community are as follows:Quercetum(55.43),mixed AlnusCupressus forest(52.54),mixed PinusCupressus forest(50.84),Cupressus funebris forest(49.68),Pinus massoniana forest(38.92).Health assessment of protection forest could be a way for improving the spatial allocation and stand structure of protection forest in the upper reaches of the Yangtze River.

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