华东师范大学学报(自然科学版) ›› 2013, Vol. 2013 ›› Issue (2): 11-19.

• 环境工程 生态学 • 上一篇    下一篇

上海人工林林下木本植物更新格局

张 净1， 郭雪艳1， 达良俊1-3， 王 婕1， 惠晓萍4， 耿 晔4   

  1. 1. 华东师范大学 环境科学系，上海 200062； 2. 华东师范大学 上海市城市化生态过程与生态恢复重点实验室，上海 200062； 3. 华东师范大学 天童森林生态系统国家野外科学观测研究站，上海 200062； 4. 上海市林业总站,上海 200072
  • 收稿日期:2012-03-01 修回日期:2012-06-01 出版日期:2013-03-25 发布日期:2013-03-20

Regeneration pattern and limitation of understory woody plants of artificial forest in Shanghai

ZHANG Jing 1, GUO Xue-yan 1, DA Liang-jun 1-3, WANG Jie 1, HUI Xiao-ping 4, GENG Ye 4   

  1. 1. Department of Environmental Science, East China Normal University, Shanghai 200062, China; 
    2. Shanghai Key Laboratory of Urbanization Ecological Restoration, East China Normal University, Shanghai 200062, China;
    3. Tiantong National Station of Forest Ecosystem, East China Normal University, Shanghai 200062, China;
    4. Shanghai Forestry Station, Shanghai 200072, China
  • Received:2012-03-01 Revised:2012-06-01 Online:2013-03-25 Published:2013-03-20

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摘要： 以上海市中心城区和外环绿带人工林为对象，于2007—2009年采用法瑞学派调查法和每木调查法相结合，共计调查典型样地908个，测定记录林下更新层木本植物的种类、数量、盖度及其生境特征，分析更新层物种组成及出现频率、不同群落类型及结构特征，并探讨影响其多样性格局的主要限制因子.结果表明：① 人工林样地更新层木本植物丰富度普遍高于林木层，针阔混交林和常绿落叶阔叶混交林更新层多样性较最高，乔—灌—草结构和乔—草结构更新层物种多样性高于灌—草结构；② 林下更新层共出现木本植物101种，占林木层总种数的65.1%，其中常绿树种33种，落叶树种68种，出现频率〖WTBX〗≥〖WTBZ〗1%的有36种，生活型以落叶阔叶乔木为主，乡土物种占75%，女贞（〖WTBX〗Ligustrum lucidum）〖WTBZ〗和香樟（〖WTBX〗Cinnamomum camphora〖WTBZ〗）出现频率最高，分别为58.6%和53.7%；③ 种源、种子散布方式、光照强度、土壤湿度和草本层盖度等生境因子是人工林林下自然更新的主要限制因素.

关键词: 人工林, 林下更新, 限制因子

Abstract: Combining the method of French-Swiss schools and that of British-American schools, species composition, diversity, frequency, regeneration patterns of different communities and structures, limitation factors of understory woody plants in the artificial plantation of Shanghai central city and the Green Belt were studied from 2007 to 2009 in 908 plots. The result showed that: ① The species richness in understory layer were much more abundant than in the upper layer, the species diversity of the needle broad-leaved mixed forest and the mixed evergreen and deciduous broad-leaved forest were much higher than the other community types, and so did the tree-shrub-herb structure and the tree-herb structure compared with the shrub-herb structure. ② 101 woody plant species were detected in the regeneration layer including 33 evergreen species and 68 deciduous species; only 36 species which mainly composed of deciduous broad-leaved trees and native species had the frequency of more than 1%; 〖WTBX〗Ligustrum lucidum〖WTBZ〗 and〖WTBX〗 Cinnamomum camphora〖WTBZ〗 appeared in more than half of the communities，the rates of frequency are 58.6% and 53.7%, respectively. ③ It was suggested that the seed sources and dispersal, light intensity, the soil moisture and the coverage of the regeneration layer were the key limitation of understory vegetation regeneration.

Key words: artificial forest, understory regeneration, limitation factors

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