| 李 雯,乔 璐,李潇晗,刘 平,唐宗英.人类活动干扰下云南油杉群落物种组成及多样性研究[J].林业调查规划,2023,48(5):56-60 |
| 人类活动干扰下云南油杉群落物种组成及多样性研究 |
| Species Composition and Diversity Analysis of Keteleeria evelyniana Community Under Human Disturbance |
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| DOI： |
| 中文关键词: 人类活动干扰 云南油杉 群落结构 物种组成 多样性 |
| 英文关键词: human disturbance Keteleeria evelyniana community structure species composition diversity |
| 基金项目:云南林业职业技术学院科研项目（KT(YB)201926）. |
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| 中文摘要: |
| 对长期处于人类活动干扰下的云南油杉群落进行定位观测调查，分析其群落物种组成和结构特征。研究共调查到9种植物，101株个体，隶属8科9属；群落的乔木层以云南油杉为优势种，灌木层以铁仔为优势种，草本层以紫茎泽兰和荩草为优势种。乔木层中树种的高度级主要集中在10~<15 m，1~<5 m高度级中仅发现幼苗3株，皆为云南油杉。DBH为8~<20 cm径级的株数占乔木层总株数的60.29%，云南油杉群落结构相对稳定，处于近熟林和成熟林阶段。研究结果表明，人类活动干扰影响了群落的林下更新，同时导致伴生种和偶见种显著减少。 |
| 英文摘要: |
| Keteleeria evelyniana community under frequent human activities was investigated and species composition and structure of community were analyzed. 9 species and 101 individuals were found in selected plots which were from 8 families and 9 genera. K.evelyniana was the dominant species of arbor layer, whereas M.africana dominated in shrub layer and E.coelestinum and A.hispidus in herb layer as well. Heights of trees were mainly distributed at 10-<15 m class. Only 3 seedlings were found at 1-<5 m class, which all belonged to K.evelyniana. DBH of 60.29% tree individuals had the range of 8-<20 cm. K.evelyniana community was at near mature or mature stage and with a quite stable structure. The results showed that human disturbance affected community′s regeneration, at the same time, disturbance also leaded to a marked decrease in associated and occasional species. |
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