学术
四川洪雅阔叶林区不同植被恢复模式物种多样性比较
兰立达[1,2] 李德文[2] 胡开波[1,2]
[1]四川农业大学林学园艺学院,四川雅安625014 [2]四川省林业调查规划院,四川成都610081
摘 要:
对四川中亚热带扁刺栲一华木荷林区20a生日本落叶松人工纯林（PI）、人工促进针阔混交林（P2）和次生阔叶林（P3）的森林植物群落进行了调查和分析。结果表明，P1、P2和P3的物种丰富度（S）分别为55、69和45；Shannon-Wiener多样性指数分别为3．39±0．26、3．77±0．14和3．14±0．31，其差异显著（P〈0．05）；P2物种多样性最高，P1物种多样性次之，P3物种多样性最低。采伐迹地的不同恢复和重建措施对森林群落以及对群落乔木层、灌木层和草本的物种多样性有显著影响（P〈0．001），但对森林群落不同层次物种多样性的影响强度不同，对草本层物种多样性影响强度较大。[著者文摘]
文章出处:
《四川林业科技》-2007年28卷5期 -45-49页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1003-5508（2007）05-0045-05
Comparison of the Plant Species Diversity in different vegetation restoration and Rehabilitation Patterns in Hongya County of Sichuan
LAN Li-da LI De-wen HU Kai-bo （ 1. College of Forestry and Horticulture, Sichuan Agricultural University, Ya＇an 625014, China; 2. Sichuan Forest Inventory and Plan Institute, Chengdu 610081 ,China）
Abstract:
Investigation and analysis were made of secondary forest communities resulting from different restoration and rehabilitation measures, including twenty-year coniferous plantation （P1）, man-made coniferous and broad-leaved mixed forest （P2）, and secondary broad-leaved forests （P3） in the middle subtropical broad-leaved forest area in Sichuan. The results showed that species abundance indices of P1,P2 and P3 were 55, 69 and 45,respectively. The Shannon-Wiener indices （SW） diversity of P1, P2 and P3 were 3.39 ±0.26, 3.77 ±0. 14 and 3.14±0. 31, and the differences of SW among P1, P2 and P3 were markedly different. The species diversity of P2 was higher than that of P1 and P3. Restoration and rehabilitation measures had a significant impact on plant species diversity of community, and yet their influencing strength on plant species diversity was varied in the different layers of forest communities. Besides, their influencing strength on the plant species diversity of the herb layer was the greatest.[著者文摘]
Key words:
Rrestoration measure, Species diversity, Secondary forest, Middle subtropical area
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