生境类型对典型阔叶红松林群落构建的影响
发布时间：2021-07-21 03:08
在温带老龄林中植物群落的可持续性激发了许多生态学家在局域尺度的生境中探索物种共存的维持机制。环境异质性是控制群落结构和驱动生态过程的最基本因素之一,同时影响种群动态。基于生态位分化的概念,更多样化的环境可以通过划分的生态位空间支持更多物种,这意味着正的异质性-多样性关系。另外,环境异质性的作用被用于评估群落内植物性状对环境的响应。本研究依托于小兴安岭凉水典型阔叶红松（Pinus koraiensis）林的9 hm2森林动态监测样地进行。根据十个土壤变量、四个地形变量、叶面积指数（LAI）和物种丰富度对研究样地的生境进行分类,发现土壤有机碳和坡度是影响物种分布的重要因素,并将研究区划分为三种生境类型。三种生境类型分别为HabⅠ（中坡度、高土壤有机碳）,HabⅡ（中坡度、低土壤有机碳）和Hab Ⅲ（低坡度、低土壤有机碳）。为了通过生境过滤方法理解群落构建过程的机制,本文检验了乔木和灌木物种的物种-生境关联。结果表明,只有红松与Hab Ⅰ呈正相关。在不同生活史中,红松幼树与Hab Ⅲ呈正相关,红松成年树与HabⅠ呈正相关。在Hab Ⅰ中,作为优势树种——红松,其成年树与其他五种阔叶树种和六种...
【文章来源】：东北林业大学黑龙江省 211工程院校 教育部直属院校
【文章页数】：173 页
【学位级别】：博士
【文章目录】：
Abstract
摘要
1 Introduction
1.1 Community assembly process
1.1.1 Competition
1.1.2 Habitat filtering
1.2 Habitat heterogeneity
1.2.1 Species-habitat association
1.2.2 Niche differentiation
1.3 Plant functional traits
1.4 Plant growth
1.5 Research purpose and significance
1.6 Research technical route
1.7 Key scientific questions to be solved
1.8 Research contents
2 Study area and methods
2.1 Study plot description
2.1.1 Geographical condition
2.1.2 Climate
2.1.3 Soil
2.1.4 Floristic
2.2 Data collection
2.2.1 Site history and forest dynamic monitoring data
2.2.2 Topography and soil data
2.2.3 Leaf area index data
2.3 Methodology overview
2.4 Habitat classification
3 Relationship between habitat association and demographic parameter
3.1 Introduction
3.2 Methods
3.2.1 Data collection
3.2.2 Species-habitat association
3.2.3 Relative growth rate, mortality rate, and recruitment rate calculation
3.2.4 Data analysis
3.3 Results
3.3.1 Species habitat association for trees and shrubs
3.3.2 Species habitat association for trees in different life stages
3.3.3 Variation in growth, mortality, and recruitment rate among the three habitat types
3.3.4 Differences in growth and mortality rate between species-habitat association statuses in threelife stages and habitat types
3.3.5 Differences in growth and mortality rate between species-habitat association statuses forshrubs across three habitat types
3.3.6 Effects of habitat types, initial DBH, and species-habitat association status on demographicparameters for trees
3.3.7 Effects of habitat types, initial DBH, and species-habitat association status on demographicparameters for shrub
3.4 Discussion
3.4.1 Soil organic carbon and slope shape local habitat types
3.4.2 Habitat filtering support community assembly
3.4.3 Habitat associations change at different life stages
3.4.4 Habitat type shapes relative growth rate for different life stages
3.4.5 Tree mortality is affected by tree density and environmental factors
3.4.6 Species-habitat association effects on demographic parameters
3.5 Chapter summary
4 Leaf trait variation in trees and shrubs at three habitat types
4.1 Introduction
4.2 Methods
4.2.1 Leaf traits sample collection
4.2.2 Leaf trait measurement
4.2.3 Data analysis
4.3 Results
4.3.1. Leaf trait in differences life stages and habitat types within tree species
4.3.2 Plant functional types shaped leaf trait variations in trees at three habitat types
4.3.3 Effects of habitat type, plant functional type, and life stage on leaf traits in trees
4.3.4 Leaf trait in differences habitat types within shrub species
4.3.5 Species abundance shaped leaf trait variations in shrubs at three habitat types
4.3.6 Effects of habitat type and species abundance on shrub leaf traits
4.4 Discussion
4.4.1 Life stage is an important determinant of all leaf traits for trees
4.4.2 SLA, LNC, and LCC of trees are shaped by plant functional types
4.4.3 Influence of habitat type on the LDMC, LNC, and LPC of trees
4.4.4 Species abundance shapes the variation of leaf traits at three habitat types
4.5 Chapter summary
5 Exploring the relationship between leaf traits and growth rate
5.1 Introduction
5.2 Methods
5.2.1 Study site
5.2.2 Leaf traits variable
5.2.3 Soil variable
5.2.4 Tree and shrub growth calculation
5.2.5 Data analysis
5.3 Results
5.3.1 The relationship between leaf traits and soil variables and tree growth
5.3.2 Mean AGR and RGR within and between functional group and life stage comparison at threehabitat types
5.3.3 Effect of leaf trait and soil variation on broadleaf and conifer tree growth across different lifestages and habitat types
5.3.4 The relationship between leaf traits and soil variables with shrub growth at three habitat types
5.3.5 The relationship between leaf traits and soil variables with shrub growth
5.3.6 Effect of leaf trait and soil variation on shrub growth across different habitat types
5.4 Discussion
5.4.1 Mean AGR and RGR vary across functional groups and life stages
5.4.2 Leaf traits and soils effects on growth within functional groups are life stage dependence
5.4.3 Leaf traits effect on tree growth depends on habitat types
5.4.4 High-nutrient habitat explains soils-growth relationship across functional groups
5.5 Chapter summary
6 Species diversity and stand structure-growth rates relationships
6.1 Introduction
6.2 Methods
6.2.1 Study site
6.2.2 Quantification of species and stand structural diversity across forest strata
6.2.3 Soil organic carbon and slope
6.2.4 Leaf area index measurement
6.2.5 Quantification of the forest growth rate across forest strata
6.2.6 Statistical analyses
6.3 Results
6.4 Discussion
6.5 Chapter summary
7 Conclusion
References
Papers published in the period of PhD study
Acknowledgements
Resume
【参考文献】：
期刊论文
[1]The influence of canopy-layer composition on understory plant diversity in southern temperate forests[J]. Luciana Mestre,Mónica Toro-Manríquez,Rosina Soler,Alejandro Huertas-Herrera,Guillermo Martínez-Pastur,María Vanessa Lencinas. Forest Ecosystems. 2017(02)
本文编号：3294181
【文章来源】：东北林业大学黑龙江省 211工程院校 教育部直属院校
【文章页数】：173 页
【学位级别】：博士
【文章目录】：
Abstract
摘要
1 Introduction
1.1 Community assembly process
1.1.1 Competition
1.1.2 Habitat filtering
1.2 Habitat heterogeneity
1.2.1 Species-habitat association
1.2.2 Niche differentiation
1.3 Plant functional traits
1.4 Plant growth
1.5 Research purpose and significance
1.6 Research technical route
1.7 Key scientific questions to be solved
1.8 Research contents
2 Study area and methods
2.1 Study plot description
2.1.1 Geographical condition
2.1.2 Climate
2.1.3 Soil
2.1.4 Floristic
2.2 Data collection
2.2.1 Site history and forest dynamic monitoring data
2.2.2 Topography and soil data
2.2.3 Leaf area index data
2.3 Methodology overview
2.4 Habitat classification
3 Relationship between habitat association and demographic parameter
3.1 Introduction
3.2 Methods
3.2.1 Data collection
3.2.2 Species-habitat association
3.2.3 Relative growth rate, mortality rate, and recruitment rate calculation
3.2.4 Data analysis
3.3 Results
3.3.1 Species habitat association for trees and shrubs
3.3.2 Species habitat association for trees in different life stages
3.3.3 Variation in growth, mortality, and recruitment rate among the three habitat types
3.3.4 Differences in growth and mortality rate between species-habitat association statuses in threelife stages and habitat types
3.3.5 Differences in growth and mortality rate between species-habitat association statuses forshrubs across three habitat types
3.3.6 Effects of habitat types, initial DBH, and species-habitat association status on demographicparameters for trees
3.3.7 Effects of habitat types, initial DBH, and species-habitat association status on demographicparameters for shrub
3.4 Discussion
3.4.1 Soil organic carbon and slope shape local habitat types
3.4.2 Habitat filtering support community assembly
3.4.3 Habitat associations change at different life stages
3.4.4 Habitat type shapes relative growth rate for different life stages
3.4.5 Tree mortality is affected by tree density and environmental factors
3.4.6 Species-habitat association effects on demographic parameters
3.5 Chapter summary
4 Leaf trait variation in trees and shrubs at three habitat types
4.1 Introduction
4.2 Methods
4.2.1 Leaf traits sample collection
4.2.2 Leaf trait measurement
4.2.3 Data analysis
4.3 Results
4.3.1. Leaf trait in differences life stages and habitat types within tree species
4.3.2 Plant functional types shaped leaf trait variations in trees at three habitat types
4.3.3 Effects of habitat type, plant functional type, and life stage on leaf traits in trees
4.3.4 Leaf trait in differences habitat types within shrub species
4.3.5 Species abundance shaped leaf trait variations in shrubs at three habitat types
4.3.6 Effects of habitat type and species abundance on shrub leaf traits
4.4 Discussion
4.4.1 Life stage is an important determinant of all leaf traits for trees
4.4.2 SLA, LNC, and LCC of trees are shaped by plant functional types
4.4.3 Influence of habitat type on the LDMC, LNC, and LPC of trees
4.4.4 Species abundance shapes the variation of leaf traits at three habitat types
4.5 Chapter summary
5 Exploring the relationship between leaf traits and growth rate
5.1 Introduction
5.2 Methods
5.2.1 Study site
5.2.2 Leaf traits variable
5.2.3 Soil variable
5.2.4 Tree and shrub growth calculation
5.2.5 Data analysis
5.3 Results
5.3.1 The relationship between leaf traits and soil variables and tree growth
5.3.2 Mean AGR and RGR within and between functional group and life stage comparison at threehabitat types
5.3.3 Effect of leaf trait and soil variation on broadleaf and conifer tree growth across different lifestages and habitat types
5.3.4 The relationship between leaf traits and soil variables with shrub growth at three habitat types
5.3.5 The relationship between leaf traits and soil variables with shrub growth
5.3.6 Effect of leaf trait and soil variation on shrub growth across different habitat types
5.4 Discussion
5.4.1 Mean AGR and RGR vary across functional groups and life stages
5.4.2 Leaf traits and soils effects on growth within functional groups are life stage dependence
5.4.3 Leaf traits effect on tree growth depends on habitat types
5.4.4 High-nutrient habitat explains soils-growth relationship across functional groups
5.5 Chapter summary
6 Species diversity and stand structure-growth rates relationships
6.1 Introduction
6.2 Methods
6.2.1 Study site
6.2.2 Quantification of species and stand structural diversity across forest strata
6.2.3 Soil organic carbon and slope
6.2.4 Leaf area index measurement
6.2.5 Quantification of the forest growth rate across forest strata
6.2.6 Statistical analyses
6.3 Results
6.4 Discussion
6.5 Chapter summary
7 Conclusion
References
Papers published in the period of PhD study
Acknowledgements
Resume
【参考文献】：
期刊论文
[1]The influence of canopy-layer composition on understory plant diversity in southern temperate forests[J]. Luciana Mestre,Mónica Toro-Manríquez,Rosina Soler,Alejandro Huertas-Herrera,Guillermo Martínez-Pastur,María Vanessa Lencinas. Forest Ecosystems. 2017(02)
本文编号：3294181
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