Plant diversity of forest communities in Chengdu ring ecological zone under park city initiative

Gui Mengmeng; Liu Qin; Yan Kun; Yan Yangyang; Wang Juan; Xu Qiuxuan

doi:10.13961/j.cnki.stbctb.2025.06.018

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Plant diversity of forest communities in Chengdu ring ecological zone under park city initiative

Experimental Researches

- Plant diversity of forest communities in Chengdu ring ecological zone under park city initiative
- Bulletin of Soil and Water Conservation Vol. 45, Issue 6, Pages: 59-66(2025)
- 作者机构：
  
  1.成都理工大学地理与规划学院，四川成都 610059
  2.中国科学院、水利部成都山地灾害与环境研究所，四川成都 610213
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2025.06.018
  CLC： Q948;S718.54
- CSTR：32312.14.stbctb.2025.06.018
- Received：25 April 2025，
  
  Revised：2025-08-02，
  
  Published：10 December 2025
- 稿件说明：
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桂萌萌, 刘勤, 严坤，等.公园城市背景下成都市环城生态区森林群落植物多样性[J].水土保持通报,2025,45(6):59-66.

Gui Mengmeng, Liu Qin, Yan Kun, et al. Plant diversity of forest communities in Chengdu ring ecological zone under park city initiative [J]. Bulletin of Soil and Water Conservation,2025,45(6):59-66.
桂萌萌, 刘勤, 严坤，等.公园城市背景下成都市环城生态区森林群落植物多样性[J].水土保持通报,2025,45(6):59-66. DOI： 10.13961/j.cnki.stbctb.2025.06.018. CSTR： 32312.14.stbctb.2025.06.018.

Gui Mengmeng, Liu Qin, Yan Kun, et al. Plant diversity of forest communities in Chengdu ring ecological zone under park city initiative [J]. Bulletin of Soil and Water Conservation,2025,45(6):59-66. DOI： 10.13961/j.cnki.stbctb.2025.06.018. CSTR： 32312.14.stbctb.2025.06.018.

摘要

目的

分析成都市环城生态区典型城郊过渡带群落物种组成特征，揭示不同群落类型、管理模式和功能林地的植物多样性差异，为土地整治与生态修复工程成效评估和植被管理优化提供科学依据。

方法

采用分层随机抽样法布设样方，利用Shannon-Wiener多样性指数、Simpson优势度指数、物种丰富度指数和Pielou均匀度指数评价植物物种多样性。

结果

①城郊植物种类丰富，共记录植物92科177属231种，其中乡土植物占41.1%，国内引进种占33.3%，国外引进种占25.5%；外来入侵植物31种，以草本为主（占80.6%）。②种子植物属地理成分较复杂，泛热带分布（29.4%）和北温带分布（18.6%）占主导。③混交林乔木层物种多样性显著高于落叶阔叶林（

0.05）；公园管理模式下的乔木层多样性显著低于非公园管理（

0.05）；景观林乔木层物种丰富度显著低于非景观林（

0.05）。

结论

城郊过渡带具有较高的植物多样性水平，但仍需警惕外来物种入侵风险。建议加强动态监测，在生态修复中优先选择常绿阔叶乡土树种。

Abstract

Objective

The species composition characteristics of the typical urban-suburban transition zone in Chengdu ring ecological zone were analyzed， in order to reveal the differences in plant diversity among different community types， management models and functional forest lands， and provide a scientific basis for the evaluation of the effectiveness of land consolidation and ecological restoration projects as well as the optimization of vegetation management.

Methods

Quadrats were established using a stratified random sampling method， and the Shannon-Wiener diversity index， Simpson dominance index， species richness index， and Pielou evenness index were used as measurement indicators to evaluate diversity.

Results

①The urban-suburban transition zone exhibited rich plant diversity， with a total of 231 plant species belonging to 177 genera and 92 families recorded. Among them， native species accounted for 41.1%， domestically introduced species for 33.3%， and exotic species for 25.5%. In addition， the survey found 31 alien invasive plant species， predominantly herbaceous， accounting for 80.6%. ②The phytogeographic composition of seed plant genera was relatively complex， with pantropical distribution （29.4%） and nort

h temperate distribution （18.6%） being dominant. ③The species diversity of the tree layer in mixed forests was significantly higher than that in deciduous broad-leaved forests （

0.05）. The tree layer diversity was significantly lower in park-managed forests compared to non-park-managed forests （

0.05）， and the species richness of the tree layer in landscape forests was significantly lower than that in non-landscape forests （

0.05）.

Conclusion

The urban-suburban transition zone maintains a relatively high level of plant diversity， but requires heightened vigilance against the risk of invasion by alien species. It is recommended to strengthen dynamic monitoring and prioritize the selection of native evergreen broad-leaved tree species in ecological restoration.

关键词

Keywords

references

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