中國西南地區(qū)喀斯特山區(qū)是由一群具有高生物多樣性和獨(dú)特植被類型的獨(dú)特的小型熱點(diǎn)地區(qū)。可是喀斯特地區(qū)同時也是一種如果管理不當(dāng)極易受到損害的地質(zhì)環(huán)境。然而現(xiàn)今,由于人為活動的影響和巖溶系統(tǒng)的生態(tài)脆弱性,導(dǎo)致了一些重要的生態(tài)系統(tǒng)損失和一些地區(qū)石漠化,從而使得中國西南地區(qū)喀斯特森林已面臨逐漸退化的危險。因此,對該地區(qū)植物群落的保護(hù)提供更多的改善管理建議、保護(hù)措施和恢復(fù)策略是十分有必要。此外,管理和修復(fù)與人為景觀變化有關(guān)的植物群落,可能明顯取決于我們對物種如何響應(yīng)環(huán)境變化的理解。本研究的主要目的是分析龍虎山自然保護(hù)區(qū)喀斯特森林的植物物種變化（多樣性,豐富度）和棲息地環(huán)境因子之間的關(guān)系。該研究除調(diào)查了物種多樣性（豐富度,多樣性）、物種多度（優(yōu)勢度,密度）的格局以及它們的生態(tài)相關(guān)性之外,還研究了植物群落的組成。本研究基于系統(tǒng)取樣,并結(jié)合植物物種種類（多樣性,多度）調(diào)查結(jié)果,以及巖石類型、環(huán)境和土壤因子的大量信息,并考慮這三類棲息地環(huán)境因子的相互作用,篩選17個樣方進(jìn)行了植被代表樣地調(diào)查。通過使用一般線性模型/GLM（方差分析/ANOVA、協(xié)方差分析/ANCOVA,多元線性回歸分析/MLR）和廣義線形模... 

【文章來源】：中國地質(zhì)大學(xué)湖北省 211工程院校 教育部直屬院校

【文章頁數(shù)】：188 頁

【學(xué)位級別】：博士

【文章目錄】：
CURRICULUM VITAE
摘要
ABSTRACT
CHAPTER I INTRODUCTION
    §1.1 BACKGROUND TO THE STUDY
    §1.2 PROBLEM STATEMENT
    §1.3 AIM AND OBJECTIVES OF THE RESEARCH
    §1.4 SIGNIFICANCE AND INNOVATIONS OF THE RESEARCH
    §1.5 RESEARCH QUESTIONS AND HYPOTHESES
CHAPTER Ⅱ REVIEW OF THE TRENDS IN PLANT-ENVIRONMENTRELATIONSHIPS, BIODIVERSITY CONSERVATION, AND KARSTENVIRONMENTAL CHARACTERISTICS
    §2.1 RELATIONSHIPS BETWEEN PLANTS AND THE ENVIRONMENT
    §2.2 ENVIRONMENTAL ISSUES, BIODIVERSITY, THREATS AND CHALLENGES
        2.2.1 Biodivcrsity in China and conservation issues
        2.2.2 Biodivcrsity in Guangxi, conservation, threats, and constraints
    §2.3 KARST GEOLOGICAL SETTINGS, ECOSYSTEMS, AND VULNERABILITY
        2.3.1 Karst geological settings
        2.3.2 The importance of karst mountains resources
        2.3.3 karst environments and their vulnerability
CHAPTER Ⅲ MATERIAL AND METHODOLOGY
    §3.1 SITE LOCATION AND DESCRIPTION
    §3.2 SAMPLING DESIGN AND DATA COLLECTION
    §3.3 SAMPLES' ANALYSIS
    §3.4 DATA PROCESSING AND STATISTICAL ANALYSIS
        3.4.1 Correlations and General Linear Models analyses
        3.4.2 Generalized Linear Models analyses
CHAPTER Ⅳ RESULTS
    §4.1 DESCRIPTION OF ROCK TYPE, SOIL CHARACTERISTICS, AND PLANT COMMUNITIES' COMPOSITION
        4.1.1 Rock type and soil characteristics
        4.1.2 Plant communities' composition
    §4.2 ANOVA/ANCOVA RESULTS FOR THE INFLUENCE OF ST AND RT ON PLANT SPECIES DIVERSITY AND ABUNDANCE
    §4.3 CORRELATIONS AND MLR MODELS FOR THE INTERRELATIONSHIP BETWEEN SOIL CHARACTERISTICS, GEOLOGICAL AND OTHER ENVIRONMENTAL FACTORS AND ITS EFFECT ON PLANT DIVERSITY AND ABUNDANCE
        4.3.1 MLR models for plant species responses to the single effects of rock type or soil properties
        4.3.2 MLR models for plant species responses to the single effects of other environmental factors
        4.3.3 MLR models for plant species responses to the combined effects of rock type, soil properties, and other environmental factors
    §4.4 GzLM REGRESSIONS FOR THE INTERACTIONS BETWEEN SOIL CHARACTERISTICS, GEOLOGICAL AND OTHER ENVIRONMENTAL FACTORS AND THEIR EFFECTS ON PLANT DIVERSITY AND ABUNDANCE
        4.4.1 Poisson and NB regressions models for plant species richness and density responses to the single or combined effects of rock type, soil properties, and other environmental factors
        4.4.2 Gamma regression models for plant species diversity and dominance responses to the single or combined effects of rock type, soil properties, and other environmental factors
CHAPTER V DISCUSSION
    §5.1 PATTERNS OF PLANT SPECIES DIVERSITY AND ABUNDANCE IN RELATIONSHIPS TO THE INTERACTIONS BETWEEN ENVIRONMENTAL HABITAT FACTORS IN LNR
        5.1.1 ANOVA/ANCO VA suggesting the interrelationships between geological, soil, and other environmental factors and their effect on the trends of plant species
        5.1.2 MLR and GzLM analyses suggesting the interrelationships between geological, soil, and other environmental factors and their effect on the patterns of plant species
    §5.2 DOMINANT SPECIES DISTRIBUTION ALONG SIGNIFICANT ENVIRONMENTAL GRADIENTS IN THE KARST FOREST OF LNR
CHAPTER VI CONCLUSION AND RECOMMENDATIONS
    §6.1 CONCLUSION
    §6.2 RECOMMENDATIONS
ACKNOWLEDGEMENTS
REFERENCES


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