抚育措施对热带天然次生林群落结构与物种多样性的影响

丁易; 路兴慧; 臧润国; 黄继红; 杨秀森; 周亚东; 黄勇; 冯业洲

抚育措施对热带天然次生林群落结构与物种多样性的影响

1.
国家林业局森林生态环境重点实验室, 中国林业科学研究院森林生态环境与保护研究所, 北京 100091
2.
南京林业大学南方现代林业协同创新中心, 江苏南京 210037
3.
海南省霸王岭林业局, 海南昌江 572721
4.
海南大学农学院, 海南海口 570228
基金项目:
国家“十二·五”科技支撑计划项目（2012BAD22B0103）
中图分类号: S718.54

Effects of Tending on the Community Structure and Species Diversity of a Tropical Natural Secondary Forest

1.
Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Key Laboratory of Forest Ecology and Environment of the State Forestry Administration, Beijing 100091
2.
Co-Innovation Center for Sustainable Forestry in Sounthern China, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
3.
Bawangling Forestry Bureau of Hainan Province, Changjiang 572721, Hainan, China
4.
College of Agriculture, Hainan University, Haikou 570228, Hainan, China
CLC number: S718.54

摘要: ［目的］通过对海南霸王岭林区的热带天然次生林抚育技术试验，了解抚育对次生林群落组成和结构的影响。［方法］通过对30个热带天然次生中龄林（60年）固定样地（50 m×50 m）进行抚育前后的森林调查数据，利用配对t检验、非维度多尺度标定（NMS）和指示种分析等统计方法，比较个体数量、物种多样性、群落物种组成、指示种、优势种和群落径级结构在抚育后的变化特征。［结果］表明：经过抚育后群落上层物种（胸径≥5 cm）和下层（1 cm≤胸径［结论］通过中幼林综合抚育措施，热带低地雨林次生林中短寿命先锋种数量显著减少，降低了抚育后先锋种对保留目的种的竞争强度，从而为加快热带次生林的生态功能恢复和实施森林经营管理奠定了重要基础。
- 群落结构
- / 干扰
- / 森林恢复
- / 优势种
- / 演替
Abstract: [Objective] To determine the effects of forest tending on the community combination and structure of secondary forest by tending trial on a tropical natural secondary forest in Bawangling forest region,Hainan Island. [Method] Based the forest survey data on 30 permanent plots (50 m×50 m) of 60-year-old tropical secondary forest before and after tending, the variations in stem density, species diversity, community composition, indicator species, dominate species and stem diameter class structure were compared by using pairs t-test, non-metric multidimensional scaling, and indicator species analysis. [Result] The results showed that the stem density in overstory (dbh≥5 cm) and understory (1 cm≤dbh[Conclusion] After tending,the number of short-lived pioneer species were significantly reduced. This effect consequently decreased the competition intensity from pioneer species and proved important foundation for accelerating ecosystem functioning recovery of tropical secondary forest and conducting forest management.
- community structure
- / disturbance
- / forest recovery
- / dominant species
- / succession

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抚育措施对热带天然次生林群落结构与物种多样性的影响

Effects of Tending on the Community Structure and Species Diversity of a Tropical Natural Secondary Forest

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抚育措施对热带天然次生林群落结构与物种多样性的影响

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Effects of Tending on the Community Structure and Species Diversity of a Tropical Natural Secondary Forest

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抚育措施对热带天然次生林群落结构与物种多样性的影响

Effects of Tending on the Community Structure and Species Diversity of a Tropical Natural Secondary Forest

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抚育措施对热带天然次生林群落结构与物种多样性的影响

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Effects of Tending on the Community Structure and Species Diversity of a Tropical Natural Secondary Forest

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