欢迎访问《植物研究》杂志官方网站,今天是 分享到:

植物研究 ›› 2023, Vol. 43 ›› Issue (6): 943-952.doi: 10.7525/j.issn.1673-5102.2023.06.016

• 植物群落生态学 • 上一篇    下一篇

桉树引种对林下植物功能群的物种组成及其多样性的影响

唐媛媛1, 邓福英2, 赵筱青2(), 黄佩1, 陶俊逸2, 周世杰2, 储博程3   

  1. 1.云南大学国际河流与生态安全研究院,昆明 650500
    2.云南大学地球科学学院,昆明 650500
    3.云南风蓝项目投资咨询集团有限公司,昆明 650500
  • 收稿日期:2023-04-22 出版日期:2023-11-20 发布日期:2023-11-08
  • 通讯作者: 赵筱青 E-mail:xqzhao@ynu.edu.cn
  • 作者简介:唐媛媛(1999—),女,硕士研究生,主要从事植物多样性方面研究工作。
  • 基金资助:
    国家自然科学基金项目(42061052);云南大学第十三届研究生科研创新项目(2021Y373);云南大学研究生人才培养模式改革计划:产教融合研究生联合培养基地建设项目(CZ22622203-2022)

Effects of Eucalyptus Introduction on Species Composition and Diversity of Understory Plant Functional Groups

Yuanyuan TANG1, Fuying DENG2, Xiaoqing ZHAO2(), Pei HUANG1, Junyi TAO2, Shijie ZHOU2, Bocheng CHU3   

  1. 1.Institute of International Rivers and Eco-security,Yunnan University,Kunming 650500
    2.School of Earth Sciences,Yunnan University,Kunming 650500
    3.Yunnan Fenglan Project Investment Consulting Group Co. ,Ltd. ,Kunming 650500
  • Received:2023-04-22 Online:2023-11-20 Published:2023-11-08
  • Contact: Xiaoqing ZHAO E-mail:xqzhao@ynu.edu.cn
  • About author:TANG Yuanyuan(1999—),female,postgraduate student,mainly engaged in plant diversity research work.
  • Supported by:
    National Natural Science Foundation of China(42061052);13th Graduate Research Innovation Project of Yunnan University(2021Y373);Yunnan University Graduate Talent Training Mode Reform Plan:Integration of Production and Education Graduate Joint Training Base Construction Project(CZ22622203-2022)

摘要:

为回答桉树(Eucalyptus)引种对植物多样性有无影响的争议问题,以云南省桉树大规模集中引种区澜沧县桉树林为研究对象,将次生常绿阔叶林、人工思茅松(Pinus kesiya)林作为参照林,各设置6组对比样地,划分植物为不同功能群,比较分析桉树林与参照林林下各功能群的物种组成特征和物种多样性指数的差异,研究桉树引种对林下植物功能群的物种组成及其多样性的影响。结果表明:(1)桉树林替代次生常绿阔叶林后,会增加暖性-阳生-中生功能群的物种数量,减少温性-阴生-喜湿功能群的物种数量;而桉树林替代人工思茅松林后,会增加温性-阴生-喜湿功能群的物种数量,减少暖性-阳生-中生功能群的物种数量。(2)桉树林替代两种参照林后,林下植物种类组成及重要值改变,紫茎泽兰(Eupatorium adenophorum)占据暖性-阳生-中生功能群的绝对优势地位,荩草(Arthraxon hispidus)占据温性-阴生-喜湿功能群的绝对优势地位。(3)桉树林替代两种参照林后,林下暖性-阳生-中生功能群的Shannon-Wiener多样性指数、Pielou均匀度指数显著降低(P<0.05),而对温性-阴生-喜湿功能群的各物种多样性指数均无显著影响(P>0.05)。总之,桉树引种改变了林下植物功能群的物种组成,对不同植物功能群的物种多样性影响不同。

关键词: 外来树种, 桉树, 植物功能群, 植物多样性, 群落生态学, 澜沧县

Abstract:

In order to answer the controversial question of the effects of Eucalyptus introduction on plant diversity, the Eucalyptus forest in Lancang County, a large-scale introduction area of Eucalyptus in Yunnan Province, was taken as the research object, and the secondary evergreen broad-leaved forest and artificial Pinus kesiya forest were used as reference forests, and six groups of comparative plots were set up, and the plants were divided into different functional groups. The species composition characteristics and species diversity index of each functional group under Eucalyptus forest and reference forest were compared and analyzed, and the effects of Eucalyptus introduction on the species composition and diversity of understory plant functional groups were examined. The results showed that: (1)the replacement of the secondary evergreen broad-leaved forest by Eucalyptus plantation would increase the number of species in the warm-sun-medium functional group and decrease the number of species in the warm-shade-wet functional group. The replacement of artificial Simao pine forest by Eucalyptus forest would increase the number of species in warm-shade-wet functional group and reduce the number of species in warm-sun-medium functional group. (2)the species composition and important value of understory plants changed after Eucalyptus forest replaced the two reference forests, Eupatorium adenophorum occupied the absolute dominant position of warm-sun-medium functional group, and Arthraxon hispidus occupied the absolute dominant position of warm-shade-wet functional group. (3)after Eucalyptus forest replaced the two reference forests, the Shannon-Wiener diversity index and Pielou uniformity index of the warm-sun-medium functional group under the forest were significantly decreased(P<0.05), but there was no significant effect on the species diversity index of the warm-shade-wet functional group(P>0.05). In conclusion, Eucalyptus introduction changed the species composition of understory plant functional groups, and had different effects on the species diversity of different plant functional groups.

Key words: Exotic tree species, Eucalyptus, plant functional groups, plant diversity, community ecology, Lancang County

中图分类号: