摘要
对顺德区5种人工林群落物种多样性进行了定量研究.结果表明:窿缘桉、台湾相思与湿地松群落物种多样性指数为灌木层>草本层>乔木层,针阔混交与阔叶混交群落物种多样性指数为灌木层>乔木层≥草本层,均匀度指数(E a除外)为灌木层>草本层>乔木层;群落间乔木层差异显著,灌木层与草本层变化趋势相对较复杂,但针阔混交林群落与阔叶混交林群落之间,窿缘桉、台湾相思与湿地松群落间无显著差异;7种多样性指数中,乔木层与灌木层采用的研究指数幅度更宽广,可采用SP、SW与P指数测度物种多样性,草本层采用Jsp、P指数较好;提出了基于物种多样性的人工林群落管理措施.
Characteristics of the species diversity of five plantation communities in Shunde, Guangdong province were systematically studied. The results are as follows. Firstly, the species diversity of Eucalyptus exserta, Acacia confusa and Pinus elliottii communities is in the order of shrub layer2〉 herb layer2〉arbor layer while that of the mixed coniferous broad- leaved community and mixed broad-leaved community is in the order of shrub layer2〉 arbor layer≥herb layer, but the variation of evenness index order appears basically consistent： shrub layer2〉 herb layer 2〉 arbor layer. Secondly, the difference of the species diversity in the five plantation communities reveals that arbor layer is significant and shrub and herb layers are complex; however, the Acacia con fuss and Pinus elliottii communities are insignificant and the variation of species diversity among Eucalyptus exserta, Acacia con fuss and Pinus elliottii communities is insignificant. Thirdly, among the species diversity index, Sp, Sw and P are the better exponents for the measurement of arbor and shrub layers while Jsp and P are the better exponents for the measurement of herb layers. And finally, based on the species diversity of the five plantation communities, the measures for their management have been put forward.
出处
《中南林学院学报》
CSCD
北大核心
2006年第6期71-75,87,共6页
Journal of Central South Forestry University
基金
顺德‘青山工程’环境效益监测与研究(2001-2005)资助
关键词
森林生态学
顺德
人工林群落
物种多样性
forest ecology
Shunde
plantation communities
species diversity
