摘要
【目的】了解贵州习水的天然南天竹群落结构。【方法】以贵州习水县温水镇的一个天然南天竹群落为调查对象,以典型样地调查法对其开展了群落调查,对群落的物种组成、结构特征及物种多样性进行分析。【结果】习水天然南天竹群落共有植物93种,隶属45科79属,其中灌木层植物43种(隶属26科),草本层植物有52种(隶属28科)。群落内植物科的分布区类型有4个,以世界分布最多,占44.44%,属的分布区类型有12个,以泛热带分布最多,占22.78%,灌木层中重要值最大的是南天竹,为13.395,物种间重要值差异较大,优势种群比较明显;草本层重要值最大的是白茅,为8.014。【结论】草本层各多样性指数均比灌木层要高,灌木层的优势度物种地位更为突出,草本层植物分布更均匀。
[Objective]This study aimed to study the community structures of Nadina domestica.[Method]Field surveys were conducted on Nadina domestica communities in Guizhou,by using the typical method of plot investigation covering the community structure and species diversity.[Result]The results showed that N.domestica communities consisted of 93 species in 79 genera,45 families.Among them there were 43 species in 26 families in the shrub layer and 52 species in 28 families in the herb layer.The areal-types of the family were 4,in which,cosmopolitans accounted for the most,44.44%.There were 12 areal-types of genera,in which pantropic accounted for the most,22.78%.The important value of Nadina domestica was 13.395,which was the highest of all the species.The important values of Imperata cylindrica was the highest(8.014)in the herb layer.[Conclusion]All the diversity indexes of the herb layer were higher than those of the shrub layer.The species of the shrub layer was more dominant,while more evenly distributed of the herb layer.
作者
陈模芳
张仁波
赵海
CHEN Mofang;ZHANG Renbo;ZHAO Hai(College of Biological and Agricultural Sciences and Technology,Zunyi Normal College,Zunyi,Guizhou 563006,China)
出处
《生物灾害科学》
2022年第1期68-75,共8页
Biological Disaster Science
基金
贵州省教育厅青年人才成长项目(黔教合KY字[2019]120)
贵州省科技厅联合基金(黔科合LH字[2015]7058号)
贵州省林业厅青年人才资金项目(黔林科合J字[2015]05号)。
关键词
南天竹
群落特征
物种多样性
贵州习水
Nadina domestica
community characteristics
species diversity
Xishui
