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| Species diversity of deciduous broad-leaved forest communities in Baihua Mountain,Beijing |
| Hu Shuping,Yu Xinxiao,Liu Yan,Yue Yongjie |
| Key Lab.of Soil & Water Conservation and Desertification Combating,Ministry of Education,College of Soil and Water Conservation,Beijing Forestry University,100083,Beijing,China |
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Abstract The species diversity of 3 deciduous broad-leaved forest communities in Baihua Mountain of Beijing in warm temperate zone were studied by using species abundance,Simpson index,Shannon-Wienner index,Pielou evenness index and Alatalo evenness index.The results show that: 1) In total diversity index of communities,the species abundance of community Ⅱ(<i>Betula davurica-Spiraea pubescens-Deyeuxia arundinacea+ Iris ruthenica</i>),the species diversity index of community Ⅰ(<i>Juglans mandshurica-Spiraea velutina-Rabdosia japonica+ Spodiopogon sibiricus</i>) and evenness index of community Ⅲ(<i>Quercus liaotungensis-Deutzia parviflora-Carex lanceolata</i>) are higher than others.2) In different growth forms,the species abundance and diversity indices of herb layer are bigger than shrub and tree layers,the descending order of evenness indices is shrub layer,herb layer,and tree layer.3) The species abundance and diversity indices of tree layer and shrub layer have significant difference with herb layer.Pielou evenness index of shrub layer and herb layer has significant difference with tree layer.
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Received: 27 June 2007
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