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Scientia Silvae Sinicae ›› 2009, Vol. 12 ›› Issue (10): 19-24.doi: 10.11707/j.1001-7488.20091004

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Establishment of an Evaluation Model of the Forest Community Stability Based on Fuzzy Synthetic Evaluation:

Guo Qiqiang1,2,Zhang Wenhui1,Cao Xuping3   

  1. 1.Key Laboratory of Environment and Ecology of Education Ministry in West China, Northwest Agricultural and Forestry University Yangling 712100; 2.Research Institute of Tibet Plateau Ecology Linzhi 860000; 3.Forest Bureau of Huanglongshan in Yan’an City Huanglong 715700
  • Received:2008-06-01 Revised:1900-01-01 Online:2009-10-25 Published:2009-10-25
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Abstract:

The forest community stability was evaluated by calculating subordinate function values of a model which was established based on fuzzy synthetic evaluation by five indices of population regeneration,soil fertility, woodland productivity,species diversity and anthropogenic destroy in main forest communities of Huanglong Mountains. The results showed that forest community stability evaluation of main forest communities in Huanglong Mountains ranked in the decreasing order of community of Quercus liaotungensis forest,Pinus tabulaeformis+Quercus liaotungensis forest,Pinus tabulaeformis forest and Betula platyphylla forest. The result was consistent with development status of the local forest community. The selected indices of this model reflected forest community stability,and highlighted forestry data application. Whole process of evaluation in this model avoided complicated calculation, and was easy to operate. Therefore,this model is suitable for extending its application in forest community stability judgment.

Key words: forest community, stability, fuzzy synthetic evaluation, established model

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