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应用生态学报 ›› 2016, Vol. 27 ›› Issue (3): 963-972.doi: 10.13287/j.1001-9332.201603.033

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林下层植被对上层乔木的影响研究综述

杜忠1*, 蔡小虎2, 包维楷1, 陈槐1, 潘红丽2   

  1. 1中国科学院成都生物研究所山地生态恢复与生物资源利用重点实验室/生态恢复与生物多样性保育四川省重点实验室, 成都 610041;
    2四川省林业科学研究院, 成都 610081
  • 收稿日期:2015-08-10 出版日期:2016-03-18 发布日期:2016-03-18
  • 通讯作者: * E-mail: duzhong@cib.ac.cn
  • 作者简介:杜忠,男,1980年生,博士.主要从事全球变化生态学研究.E-mail:duzhong@cib.ac.cn
  • 基金资助:
    本文由国家林业局公益性行业科研专项(201104026)、中国科学院战略性先导科技专项(XDA0505020407)和国家自然科学基金项目(41501227)资助

Understory effects on overstory trees: A review

DU Zhong1*, CAI Xiao-hu2, BAO Wei-kai1, CHEN Huai1, PAN Hong-li2   

  1. 1Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Sichuan Province Key Laboratory of Ecological Restoration Biodiversity Conservation, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China;
    2Sichuan Academy of Forestry, Chengdu 610081, China
  • Received:2015-08-10 Online:2016-03-18 Published:2016-03-18
  • Contact: * E-mail: duzhong@cib.ac.cn
  • Supported by:
    This work was supported by the Scientific Research Program on Public Welfare of State Forestry Administration (201104026), the Strategic Priority Research Program of the ChineseAcademy of Sciences (XDA0505020407) and the National Natural Science Foundation of China (41501227).

摘要: 植物间交互作用在植物群落和生态系统的组成、结构、功能等方面发挥着重要作用.在过去的森林生态系统研究中,更多地关注上层乔木之间的相互作用或乔木层对下层植被的影响,较少研究林下层植被对上层乔木生理生态和生长的影响.本文综述了去除林下层植被对土壤理化性质、土壤动物区系、凋落物分解及上层乔木生理生态和生长的影响,讨论了外界干扰对林下植被-乔木层竞争关系的影响,提出林下植被对上层乔木影响的生理生态学机理概念模型.研究区域、乔木林龄、地力条件、林下植物种类是影响林下层植被-乔木层竞争关系的重要因素.

Abstract: Plant-plant interactions play a key role in regulating the composition and structure of communities and ecosystems. Studies of plant-plant interactions in forest ecosystems have traditionally concentrated on either tree-tree interactions or overstory species’ impacts on understory plants. The possible effects of understory species on overstory trees have received less attention. We summarized the effects of understory species on soil physiological properties, soil fauna activities, leaf litter decomposition, and ecophysiology and growth of the overstory species. Then the effects of distur-bance on understory-overstory interactions were discussed. Finally, an ecophysiology-based concept model of understory effects on overstory trees was proposed. Understory removal experiments showed that the study area, overstory species age, soil fertility and understory species could significantly affect the understory-overstory interactions.