北京市通州区不同类型公园绿地植物群落特征比较

Comparison about Plant Community Characters in Different Park Green Space of Tongzhou Distinct in Beijing

采用典型抽样法对北京市通州区部分公园绿地共计42个群落进行了调查,统计其树种组成,在计算各树种重要值的基础上分析了各公园绿地的生态优势度、物种丰富度指数和多样性指数。结果表明:大光园和万春园生态优势度较高;生态公园和运河城市绿地具有较高的物种多样性指数和物种丰富度指数,均匀度指数也较高。表明人工配置力度越大的群落其优势种地位越不明显,物种更丰富且分布均匀,更适合给人们创造活动空间。

Survey of the various styles of 42 botanical communities of the park and garden in Tongzhou district was conducted by representative method of sampling.Its species composition was statistics,on the basis of calculation of various tree species importance values,ecological dominance,species richness index and the diversity index of each park green space were analyzed.The result showed that Daguang Yuan and Wanchun Yuan had a high degree of ecological dominance;ecological parks and canals of urban green space had a high species diversity index and species richness index,evenness index was also higher.It also indicated that the greater the intensity of manual configuration,the less obvious of the dominant species in the communities,the more species-rich and more evenly distributed,and so that more suitable for creating activity space.