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老挝Phou Khao Khouay国家公园森林群落树种组成特征研究

作　者: Metmany SOUKHAVONG
导　师: 刘勇
学　校: 北京林业大学
专　业: 森林培育学
关键词: diversity species composition Tad Xai in the Phou khao khouay Lao PDR individuals
分类号: Q948.1
类　型: 硕士论文
年　份: 2013年
下　载: 0次
引　用: 0次
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内容摘要

Phou Khao Khouy National Park (PKK), in the Lao People’s Democratic Republic, is rich in biological diversity, particular in plant species in the density forests. Knowledge of species composition provides basic information that is essential for protection and preservation of the existing forest and for sustainable forest management. The objective of this study was to explore species composition in plant community assemblage and of plant density, diversity and abundance in different vegetation strata. The study was conducted at Tad Xai in the PKK in2012. The total sample area comprised eleven50x50m plots and hierarchical plot design was employed to sample three vegetation strata (trees, sapling, and seedlings). The measured indicators consisted of diversity, evenness and richness indices. Sixty-two families,145species and1,221individuals were recorded in the tree plots. The most abundant tree species in terms of individual number were Hydnocarpus ilicifolia, Hopea spp., and the most abundant families among trees in terms of species number were Rubiaceae and Dipterocarpaceae. Twenty-four families,33species and91individuals were recorded in the sapling plots, in which the most abundant species were Rinorea boissieui, Ailanthus triphysa and Hopea spp., and the most abundant families were Dipterocarpaceae and Myrtaceae. The seedling quadrate contained88families,153species and1,586individuals, the most abundant sapling species were Hopea spp., Hopea ferrea and Leguminosae spp., and the most abundant families among saplings were Rubiaceae, Annonaceae and Dipterocarpaceae. Diversity was extremely high at the trees and seedling levels, which showed diversity indices of2.63and2.83, respectively, but was low in sapling level (1.43). The highest trees belonged to the Dipterocarpaceae, in which the mean height of17.24m and maximum mean DBH was33.57cm. The canopy cover of Diperocarpaceae was highest (35%) among families in the study area. Lauraceae and six additional families had lowest crown cover around5%.

全文目录

Abstract  5-6
Acknowledgement  6-7
Table of content  7-9
List of Figures  9-10
List of Tables  10-11
List of appendix  11-12
Acronyms  12-13
1. Introduction  13-15
  1.1 Background  13-14
  1.2 Problem statement  14
  1.3 Study objectives  14-15
2. Literature review  15-20
  2.1 Plant diversity  15-17
  2.2 Species abundance  17
  2.3 Biodiversity  17-18
  2.4 Plant community  18
  2.5 Biodiversity in Lao PDR  18-20
3. Study area characteristics and Method  20-29
  3.1 Study area  20-22
    3.1.1 Location  20-21
    3.1.2 Climate  21
    3.1.3 Topography  21-22
    3.1.4 Soil  22
    3.1.5 Vegetation type  22
  3.2 Study technical route  22-24
  3.3 Sampling plot and procedure  24-26
    3.3.1 Location of sampling plot  24-25
    3.3.2 Sampling procedure and simple plot design  25-26
  3.4 Data analysis  26-28
  3.5 Specimen collection  28-29
4. Result and Discussion  29-41
  4.1 Species composition  29-32
    4.1.1 Tree species composition  29-30
    4.1.2 Sapling species composition  30-31
    4.1.3 Seedling species composition  31-32
  4.2 Family composition  32-35
    4.2.1 Familial classification of trees species  32-33
    4.2.2 Familial classification of sapling species  33-34
    4.2.3 Familial classification of seedling species  34-35
  4.3 Species diversity of plant communities  35-38
  4.4 Trees growth stage  38-41
    4.4.1 Mean tree height, DBH and canopy width  38-41
5. Conclusion and Recommendation  41-43
  5.1 Conclusion  41
  5.2 Recommendation  41-43
Reference  43-46
Appendix  46-61
CANDIDATE RESUME  61-62
SUPERVISOR RESUME  62

老挝Phou Khao Khouay国家公园森林群落树种组成特征研究

内容摘要

全文目录

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