Assessment of Wetland Resource in East Dongting Lake National Nature Reserve,Hunan Province

  • 1. Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China;
    2. Research Institute of Forest Resource Information Techniques,CAF,Beijing 100091,China

Received date: 2010-10-10

  Revised date: 2011-05-18

  Online published: 2011-06-15


Wetlands are the transition zone between terrestrial and aquatic ecosystems,the largest terrestrial carbon reservoir and an important part of the terrestrial ecosystems cycle.Wetlands perform functions that support the generation of ecologically,socially and economically important values.However,as the unreasonable utilization and destruction of wetlands,the total area of natural wetlands decreased rapidly,and wetland resources in China are no exception.In recent years,assessment of wetland resource has been paid close attention.Assessment of wetland resource can further protect wetland resources and provide scientific foundation for decision-makers.Through the study of wetland ecosystems,from the ecological,social,economic benefits,we build the ecological health assessment and legitimate utilization assessment for the East Dongting Lake National Nature Reserve.In this study,Delphi method,analytical hierarchy process (AHP) and PSR model are adopted to appraise ecological health and legitimate utilization.First,an index system of integrated assessment of wetland resource was constructed,and the indexes involve the following three aspects,i.e.pressure,state and response.An index system of ecological health for wetland resource established was composed of 3 subsystems,with 17 indicators involved.And the index system of reasonable utilization of wetland resource established was composed of 3 subsystems,with 9 indicators involved.By conducting field investigation in East Dongting Lake and by performing remote sensing data processing,the score of ecological health of wetland in East Dongting Lake National Nature Reserve is 1.09,which means its health is generally reasonable,while the score of legitimate utilization is 0.64, that is a moderate score.

Cite this article

WANG Yaxin, JU Hongbo, ZHANG Huaiqing, JIANG Dong, ZHUANG Dafang . Assessment of Wetland Resource in East Dongting Lake National Nature Reserve,Hunan Province[J]. Journal of Geo-information Science, 2011 , 13(3) : 323 -331 . DOI: 10.3724/SP.J.1047.2011.00323


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