| 茂兰国家自然保护区喀斯特森林系统发育结构 |
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| 引用本文： | 王雷宏,杨俊仙,曹翠萍.茂兰国家自然保护区喀斯特森林系统发育结构[J].山地学报,2020,38(2):201-209. |
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| 作者姓名： | 王雷宏 杨俊仙 曹翠萍 |
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| 作者单位： | 安徽农业大学 林学与园林学院,合肥 230036;安徽农业大学 理学院,合肥 230036 |
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| 基金项目： | 国家林木种质资源共享服务平台项目;国家林业局生物安全与遗传资源管理项目;安徽省教育厅高等学校自然科学研究项目 |
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| 摘 要： | 为了揭示茂兰喀斯特森林群落构建的主导力量,检测了11个典型喀斯特群落的系统发育结构以及与生境的关系。结果表明:喀斯特森林群落的系统发育多样性与香农威纳指数、物种丰富度的变化趋势基本是一致的,各群落在物种系统进化上累积的信息相近。黄梨木(Boniodendron minus)—飞蛾槭(Acer oblongum)、荚蒾(Viburnum dilatatum)—鹅掌柴(Schefflera heptaphylla)、青冈(Cyclobalanopsis glauca)—圆果化香(Platycarya longipes)、圆果化香—黄皮(Clausena lansium)、圆果化香—荚蒾、掌叶木(Handeliodendron bodinieri)—光叶槭(Acer laevigatum)、栲(Castanopsis fargesii)—杜英(Elaeocarpus decipiens)、紫树(Nyssa sinensis)—山胡椒(Lindera glauca)林系统发育结构聚集。短叶黄杉(Pseudotsuga brevifolia)—广东松(Pinus kwangtungensis)、短叶黄杉—化香、梧桐(Firmiana simplex)—青冈林系统发育结构均匀。群落系统发育结构分布格局表现为,系统发育结构聚集的群落位于山体的漏斗、沟谷、中坡、下坡、山垭口的部位,而系统发育结构均匀的群落位于山体的上坡、山脊的部位。以地形部位上坡为界划分两种生境,学生氏t检验表明两种生境下群落的系统发育结构差异显著,说明茂兰喀斯特地区山体的地形部位是构建和维持喀斯特森林类型的主导力量。
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| 关 键 词： | 喀斯特森林 群落构建 系统发育结构 地形部位 茂兰 |
Phylogenetic Structure of Karst Forest in Maolan National Nature Reserve,Guizhou Province,China |
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| WANG Leihong,YANG Junxian,CAO Cuiping.Phylogenetic Structure of Karst Forest in Maolan National Nature Reserve,Guizhou Province,China[J].Journal of Mountain Research,2020,38(2):201-209. |
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| Authors: | WANG Leihong YANG Junxian CAO Cuiping |
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| Institution: | (Anhui Agricultural University,School of Forestry&Landscape Architecture,Hefei 230036,China;Anhui Agricultural University,School of Science,Hefei 230036,China) |
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| Abstract: | The aim of study is to reveal the main driving force of Karst forest community assembly and maintenance in Maolan National Nature Reserve.The phylogenetic structures and patterns of 11 typical Karst communities were examined,and the relationship between these measures and habits for all communities was analyzed.The results showed that the basic accordance of the phylogenetic diversity(log10PD)of Karst forest community with the variation tendencies of species richness(lnS)and Shannon Wiener index(H′).The accumulated informations were similar in phylogenetic evolution of species for all communities.The communities of phylogenetic clustering were Boniodendron minus—Acer oblongum,Viburnum dilatatum—Schefflera heptaphylla,Cyclobalanopsis glauca-Platycarya longipes,Pl.longipes—Clausena lansium,Pl.longipes—Viburnum dilatatum,Handeliodendron bodinieri—Acer laevigatum,Castanopsis fargesii—Elaeocarpus decipiens,Nyssa sinensis—Lindera glauca.The communities of phylogenetic evenness or overdispersion were Pseudotsuga brevifolia—Pinus kwangtungensis,Ps.brevifolia—Pl.longipes,Firmiana simplex—C.glauca.The community phylogenetic structure patterns were that the communities in funnels,cheuchs,middle slopes,downslopes,and mountain passes were phylogenetic clustering.The communities on upslopes and ridges were phylogenetic evenness or overdispersion.All habitats were divided into two habitat types by the upslope of terrain.The differences of community phylogenetic structure among communities on these two habitats were significant by Student's t test,that suggested that the topographical position of a mountain in Karst areas in Maolan was a main force for assemble and maintenance various karst forest types dominantly. |
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| Keywords: | Karst forest community assemble phylogenetic structure topographical position Maolan |
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