| 马晓东，饶显龙，王发国，易绮斐，刘东明，邢福武.佛山市大浩湖山黄麻群落特征及物种多样性研究[J].广东农业科学,2014,41(21):153-158 |
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佛山市大浩湖山黄麻群落特征及物种多样性研究 |
| Community characteristics and species diversity of Trema tomentosa in Dahao Lake, Foshan city |
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| DOI： |
| 中文关键词: 山黄麻群落 群落特征 物种多样性 大浩湖 |
| 英文关键词: Trema tomentosa community community characteristics species diversity Dahao Lake |
| 基金项目:广州市科技计划项目(2012J2200060) |
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| 中文摘要: |
| 在佛山市大浩湖设置1200m2样地进行调查，并根据调查结果对山黄麻（Trema tomentosa）群落的种类组成、外貌、结构特征及动态进行分析。结果显示：（1）该样地共有维管束植物48种，隶属于28科44属。（2）通过计算乔木层、灌木层和草本层主要物种的重要值以及频度分析得出，该群落是以山黄麻为主的单优种群落，群落种类组成多样性和水平分布不均匀，其群落外貌四季常绿。通过对优势种种群的年龄结构分析，显示该种群处于增长状态。整个群落的Shannon-Wiener指数为3.8113，Simpson指数为0.8778，均匀度指数为1.0133，丰富度指数4.9382。该群落的多样性格局为草本层>灌木层>藤本层>乔木层。（3）与其他3个同地带森林群的物种多样性比较结果显示，山黄麻群落物种多样性较低，山黄麻在群落中优势地位较为明显。 |
| 英文摘要: |
| Species composition, appearance, structural characteristics and dynamic of Trema tomentosa community were analyzed based on community investigation of 1 200 m2 sample plot set in Dahao Lake, Foshan city.The results showed that: (1) 48 species in 44 genera and 28 families of vascular plants were recorded in the sample plot.(2) The analysis on species important value and frequency analysis showed that T. tomentosa was the main dominant species of the community and its composition diversity and horizontal distribution was uneven. The physiognomy of the community was evergreen.The age structure of dominant population showed that the main population of the community belonged to increasing population. The species diversity of the community was relatively low with the Shannon Wiener index of 3.8113, the Simpson index of 0.8778，the evenness index of 1.0133，and Richness index of 4.9382.The diversity pattern from maximum to minimum was herb,shrub,liana and arbor.(3) Diversity comparison with 3 communities of other same areas showed that the species diversity of T. tomentosa community was rather low and its dominant position was obvious. |
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