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| 云南新平铁坚油杉森林群落结构特征 | |
| 引用本文： | 钏会艳,贾东瑞,浦江,张翠萍,李淑英,周元清.云南新平铁坚油杉森林群落结构特征[J].植物生态学报,2021,45(2):207-212. |
| 作者姓名： | 钏会艳 贾东瑞 浦江 张翠萍 李淑英 周元清 |
| 作者单位： | 云南大学生态与环境学院, 昆明 650500 玉溪师范学院污染控制与生态修复研究中心, 云南玉溪 653100 |
| 基金项目： | 国家自然科学基金(31960263) |
| 摘 要： | 摸清珍稀濒危抗旱植物铁坚油杉(Keteleeria davidiana)的种群数量及其分布情况, 能够为珍稀濒危物种保护工作提供基础数据。该文对云南省新平县6个乡镇铁坚油杉群落进行样方调查分析, 每个乡镇设置3个样方, 样方面积为20 m × 20 m, 记录样方生境信息、统计群落物种组成及其数量特征, 对群落类型及其结构特征进行了统计和分析。主要结果: (1)在调查样地内, 共有维管束植物163种, 隶属于58科131属; (2)植物群落区系分布类型有12种, 以热带成分和中国特有种为主, 热带成分占优势; (3)群落内乔木和灌木植物最多, 占62.58%, 其次是多年生草本植物; (4)按照建群种和生活型, 可将18组植被样方数据划分为3个群系17个群落类型; (5)年龄结构不合理, 铁坚油杉种群结构呈衰退趋势, 自然居群已成为小种群。如果铁坚油杉群落没有足够的幼苗进行更新和补充, 铁坚油杉将退出当前的群落。 |
| 关 键 词： | 铁坚油杉 物种多样性 群落特征 |
| 收稿时间： | 2020-06-18 |
Structural characteristics of Keteleeria davidiana forest communities in Xinping,Yunnan |
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| CHUAN Hui-Yan,JIA Dong-Rui,PU Jiang,ZHANG Cui-Ping,LI Shu-Ying,ZHOU Yuan-Qing.Structural characteristics of Keteleeria davidiana forest communities in Xinping,Yunnan[J].Acta Phytoecologica Sinica,2021,45(2):207-212. | |
| Authors: | CHUAN Hui-Yan JIA Dong-Rui PU Jiang ZHANG Cui-Ping LI Shu-Ying ZHOU Yuan-Qing |
| Affiliation: | School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, China Research Center for Pollution Control and Ecological Restoration, Yuxi Normal University, Yuxi, Yunnan 653100, China |
| Abstract: | Aims Understanding the population quantity and distribution of a drought-resistant plant, Keteleeria davidiana, can assist the protection of this rare and endangered species. Methods The K. davidiana forest communities were investigated in dry land of 6 townships in Xinping County, Yunnan Province, in three 20 m × 20 m plots for each township, and analyzed for structural characteristics in consideration of species composition and life-forms. Important findings We found 163 vascular plants belonging to 131 genera and 58 families in the plots with a total area of 7 200 m2. The communities are classified into 12 zonal types containing predominantly tropical and endemic species to China, dominated by the tropical components. Trees and shrubs (accounted for 62.58%) are dominant life-forms, followed by perennial herb. Based on the foundation species and life-form, the data of 18 vegetation plots were classified into 3 formations and 17 community types. The analysis of stumpage structure showed that the population structure of K. davidiana tended to recess, and the natural populations are small. If lacks sufficient regeneration seedlings, the K. davidiana trees would decline and diminish from the communities. |
| Keywords: | Keteleeria davidiana" target="_blank">Keteleeria davidiana')">Keteleeria davidiana species diversity community characteristics |
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