[1]李辉 包维楷** 李芳兰.画稿溪自然保护区桫椤（Alsophila spinulosa）群落乔木层的物种组成与结构[J].应用与环境生物学报,2021,27(03):1-12.[doi:10.19675/j.cnki.1006-687x.2020.05047]
LI Hui,BAO Weikai ** & LI Fanglan.Species composition and structure of tree layer of Alsophila spinulosa community in the Huagaoxi national n ature reserve, Sichuan[J].Chinese Journal of Applied & Environmental Biology,2021,27(03):1-12.[doi:10.19675/j.cnki.1006-687x.2020.05047]
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画稿溪自然保护区桫椤（Alsophila spinulosa）群落乔木层的物种组成与结构()
LI Hui,BAO Weikai ** & LI Fanglan.Species composition and structure of tree layer of Alsophila spinulosa community in the Huagaoxi national n ature reserve, Sichuan[J].Chinese Journal of Applied & Environmental Biology,2021,27(03):1-12.[doi:10.19675/j.cnki.1006-687x.2020.05047]
《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]
- 卷:
- 27卷
- 期数:
- 2021年03期
- 页码:
- 1-12
- 栏目:
- 研究简报
- 出版日期:
- 2021-06-25
文章信息/Info
- Title:
- Species composition and structure of tree layer of Alsophila spinulosa community in the Huagaoxi national n ature reserve, Sichuan
- Keywords:
- Alsophila spinulosa ; Monitoring plot; Species density; Species composition; Height structure; DBH structure
- 摘要:
- 桫椤是世界上珍稀濒危植物之一。为了对生物多样性进行长期监测与研究，在画稿溪保护区建立了2 hm2监测样地，分析样地乔木层（H ≥ 3 m）的物种组成、物种密度、径级结构和高度结构，结果表明，乔木层有3498株，隶属39科56属87种。桫椤（Alsophila spinulosa）、八角枫（Alangium chinense）、赤杨叶（Alniphyllum fortunei）、杉木（Cunninghamia lanceolata）和润楠（Machilus pingii）重要值分别为22.58%, 8.53%, 8.24%, 6.27%, 4.87%和4.63%，桫椤占绝对优势，样地为桫椤群落。乔木层最大密度为69株/100m2，最小密度为1株/100m2，平均密度约为18株/100m2。物种具有较多的幼树和幼苗，种群能够自我更新且群落较为稳定。桫椤主要分布在乔木的中下层，有一定数量的幼苗库。目前临时样地面积小、监测时间短，不足以认识桫椤群落水平上生物多样性维持机制。本研究对2 hm2监测样地进行首次调查并对物种组成、物种密度、径级结构和高度结构首次分析，可为生物多样性进行长期监测与研究提供有效的理论依据。
- Abstract:
- Alsophila spinulosa is a rare and endangered plant . For long-term monitoring and research of biodiversity, we established a monitoring plot (2 hm2 of area) in Huagaoxi national nature reserve and investigated species composition, DBH and height structures of trees ( H ≥ 3 m). The results show ed t hat monitoring plot were 3498 individuals , belonging to 39 families, 56 genera and 87 species . Important values of Alsophila spinulosa , Alangium chinense, Alniphyllum fortune, Cunninghamia lanceolate and Machilus pingii were 22.58%, 8.53%, 8.24%, 6.27% and 4.63%, A. spinulosa w as obvious advantages, monitoring plot was A. spinulosa community . The maximum density w ere 69 individuals/100m 2, the minimum density was 1 individual/100m2 and the average density w ere 18 individuals/100m 2 in monitoring plot . Species were rich in saplings and seedlings , population could self-regeneration and A. spinulosa community could stabilization. A. spinulosa was mainly distributed in the lower and middle layers of trees and had a amount of seedling banks. At present, the temporary plot are small in size and short in monitoring time, which is insufficient to understand the mechanism of biodiversity maintenance at the community level. This study first survey and analysis of the species composition, species density, diameter grade structure and height structure of 2 hm2 monitoring plot , so provides an effective theoretical basis for long-term monitoring and research of biodiversity.
相似文献/References:
[1]宋萍 洪伟** 吴承祯 封磊 范海兰.濒危植物桫椤种群生态场研究[J].应用与环境生物学报,2008,14(04):474.
[2]宋培勇,李林,肖仲久,等.4株桫椤内生细菌的分离鉴定及系统发育分析[J].应用与环境生物学报,2013,19(03):528.[doi:10.3724/SP.J.1145.2013.00528]
SONG Peiyong,LI Lin,XIAO Zhongjiu,et al.Identification and Phylogenetic Analysis of Four Endophytic Bacteria Isolated from Alsophila spinulosa[J].Chinese Journal of Applied & Environmental Biology,2013,19(03):528.[doi:10.3724/SP.J.1145.2013.00528]
备注/Memo
- 备注/Memo:
-
收稿日期 Received: 2020-05-27 接受日期 Accepted: 2020-07-10
四川画稿溪国家级自然保护区桫椤林监测样地建设项目（LZZFCGSYD(2017)7049）资助 Supported by the Project of Monitoring Plots of Alsophila spinulosa in the Huagaoxi National Nature Reserve, Sichuan Province (LZZFCGSYD(2017)7049)
**通讯作者 Corresponding author (E-mail: baowk@cib.ac.cn)
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更新日期/Last Update:
2020-08-04