【摘要】 为有效解决湿地洲滩植物群落生物多样性保护与提升过程中遇到的技术难题，该研究在对白洋淀湿地洲滩植物群落进行群落调查的基础上，构建了包含群落物种多样性和功能多样性指标的生物多样性评价指标体系，利用主成分分析法进行植物群落生物多样性综合评价，提出了基于植物功能性状的物种筛选方法，总结了仿自然植物群落构建的湿地洲滩植物群落生物多样性保护与提升技术。研究结果发现，白洋淀湿地洲滩植物群落生物多样性评价指数平均为0.47，依据仿自然植物群落的技术体系，构建的洲滩生境植物群落各生物多样性指标均有明显改善，生物多样性水平提升78.9%。综上所述，利用群落结构特征结合物种功能性状构建仿自然群落是保护和提升湿地洲滩植物群落生物多样性水平的有效手段。更多还原

【Abstract】 To effectively address the urgent technical needs in the conservation and enhancement the biodiversity of wetland floodplain plant communities. This study, based on the of plant community investigations of the floodplain plant community within the Baiyangdian wetland, constructed a biodiversity evaluation index system that includes both species diversity and functional diversity indicators. Principal component analysis was utilized for a comprehensive assessment of plant community biodiversity, and a species selection method based on plant functional traits was proposed. Besides, the study also summarized techniques for the protection and improvement of biodiversity in wetland floodplain plant communities through the construction of natural-like plant communities. The results showed that the average biodiversity evaluation index of wetland floodplain plant communities was 0.47. According to the technical system of plant communities that artificial nature, biodiversity indicators of the constructed floodplain plant community have shown significant improvement, with a 78.9% increase in biodiversity levels. In conclusion, constructing communities that artificial nature by combining the community structural characteristics with species functional traits is an effective means to protect and enhance the biodiversity level of wetland floodplain plant communities.更多还原