Research on Biodiversity Evaluation of Xiazhu Lake National Wetland Park
A comprehensive investigation was conducted on the Xiazhu Lake National Wetland Park using field survey method and geographic information technology,and biodiversity evaluation index data was obtained by combining relevant literature and materials.Using the Analytic Hierarchy Process(AHP)and PSR model,nine indicators were determined,including wetland area,wetland type,plant species richness,animal species richness,rare species,invasive alien species,protection and management level,science education level,and human threat.The weights of the indicators were determined using the Delphi method,and a wetland park biodiversity evaluation index system was constructed to evaluate the Xiazhu Lake National Wetland Park.After calculation,the biodiversity index(BI)of Xiazhu Lake National Wetland Park is 50.8744,indicating a moderate level of condition.The results indicate that:1)Plant species richness is the primary limiting factor for biodiversity in Xiazhu Lake National Wetland Park;2)Invasion of alien species poses a threat to biological security.3)Human activities to some extent interfere with the ecological environment of the park.4)The indicator value of science popularization education level in the evaluation area is relatively low.Based on the evaluation results,provide protection suggestions for the biodiversity of Xiazhu Lake National Wetland Park.
wetland parkbiological diversityevaluateXiazhu Lake National Wetland Park
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