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唐健民,邹蓉,朱成豪,秦惠珍,谷睿,韦霄.广西兴安白石天坑植物群落及地理成分分析[J].广西科学院学报,2020,36(1):65-72. [点击复制]
- TANG Jianmin,ZOU Rong,ZHU Chenghao,QIN Huizhen,GU Rui,WEI Xiao.Analysis of Plant Community and Geographical Component of Baishi Tiankeng in Guangxi Xing'an[J].Journal of Guangxi Academy of Sciences,2020,36(1):65-72. [点击复制]
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| 广西兴安白石天坑植物群落及地理成分分析 |
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唐健民1, 邹蓉1, 朱成豪1,2, 秦惠珍1,3, 谷睿1,4, 韦霄1
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| (1.广西壮族自治区中国科学院广西植物研究所, 广西喀斯特植物保育与恢复生态学重点实验室, 广西桂林 541006;2.桂林医学院, 广西桂林 541004;3.广西师范大学生命科学学院, 广西桂林 541006;4.桂林理工大学旅游与风景园林学院, 广西桂林 541006) |
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| 摘要: |
| 本研究对广西兴安白石天坑的植物区系特征和植物群落进行调查研究，以探寻植物生物多样性与地理演化、天坑生境的密切关系。结果表明：白石天坑植物有65科117属131种，区系组成中乔木有21种，占总数的16.03%；灌木有28种，占总数的21.37%；藤本植物有13种，占总数的9.92%，草本植物占总数的52.67%。植物区系地理成分科级水平可划分为6个分布类型，主要是世界广布（36.92%）和泛热带分布（32.31%）；在属级水平可分为14个分布类型9个变型，热带分布类型有60属，占总属数的51.28%，温带分布类型有37属，占总属数的31.62%。白石天坑植物群落的生物多样性受光照影响较大：天坑底部向洞穴纵深100 m区域，物种分布只有3科3种；向洞穴纵深50 m区域分布11科13种；天坑底部区域分布13科14种；天坑中部植物丰富度较高，为33科44种，天坑外围分布有48科84种。白石天坑植物区系以泛热带成分为主，温带区系为辅，植物区系受中国-日本植物区系的影响更明显。本研究结果丰富了岩溶地区植物区系和生物多样性的研究资料，为以后开展全球气候变化和喀斯特植物生物多样性变化相关性研究奠定基础。 |
| 关键词: 白石天坑 喀斯特 植物区系 气候变化 群落 |
| DOI：10.13657/j.cnki.gxkxyxb.20200317.013 |
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| 基金项目:中央引导地方科技发展专项（桂科ZY1949013），广西科技基础和人才专项（桂科AD17129022），广西植物功能物质研究与利用重点实验室项目（ZRJJ2018-9）和广西植物研究所基本业务费项目（桂植业18013，18014，19002）资助。 |
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| Analysis of Plant Community and Geographical Component of Baishi Tiankeng in Guangxi Xing'an |
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TANG Jianmin1, ZOU Rong1, ZHU Chenghao1,2, QIN Huizhen1,3, GU Rui1,4, WEI Xiao1
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| (1.Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, Guangxi, 541006, China;2.Guilin Medical College, Guilin, Guangxi, 541004, China;3.College of Life Science, Guangxi Normal University, Guilin, Guangxi, 541006, China;4.College of Tourism and Landscape Architecture, Guilin University of Technology, Guilin, Guangxi, 541006, China) |
| Abstract: |
| The flora characteristics and plant communities of Baishi tiankeng in Guangxi Xing'an were investigated to explore the close relationship between plant biodiversity,geographical evolution and tiankeng habitat.According to the investigation,there were 65 families,117 genera,131 species of Baishi tiankeng vascular plants.In the composition of plant flora,there were 21 species of trees,accounting for 16.03% of the total.There were 28 species of shrubs which accounted for 21.37%,and there were 13 species of lianas which accounted for 9.92%,and herbaceous plants accounted for 52.67% of the total.The family level of the geographical component of the flora could be divided into 6 distribution types.The main types were world-wide generic types (36.92%) and pan-tropical types (32.31%).At the genera level,it could be divided into 14 distribution types and 9 variations.There were 60 genera of tropical distribution types,accounting for 51.28% of the total number of genera.There were 37 genera of temperate distribution types,accounting for 31.62% of the total number of genera.The biodiversity of plant community in Baishi tiankeng was greatly affected by light.There were only 3 families and 3 species in the bottom of Baishi tiankeng with a depth of 100 m to the cave.11 families and 13 species distributed 50 m deep towards the cave.There were 13 families and 14 species distributed in the region at the bottom of tiankeng.The high plant richness in the middle of tiankeng was 44 species of 33 families,and 84 species of 48 families distributed in the periphery of tiankeng. The flora of Baishi tiankeng was mainly dominated by pan-tropical elements,supplemented by the temperate flora,and more significantly influenced by the flora of China and Japan.The results of this study enrich the research data of flora and biodiversity in karst areas,and lay the foundation for future research on the correlation between global climate change and karst plant biodiversity changes. |
| Key words: Baishi tiankeng karst plant flora climate change community |
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