| 不同干扰条件下构树萌枝种群结构和分布格局 |
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| 引用本文： | 魏媛,喻理飞.不同干扰条件下构树萌枝种群结构和分布格局[J].福建林学院学报,2009,29(4). |
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| 作者姓名： | 魏媛 喻理飞 |
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| 作者单位： | 1. 贵州财经学院资源与环境管理学院,贵州,贵阳,550004;贵州大学林学院,贵州,贵阳,550025
2. 贵州大学林学院,贵州,贵阳,550025 |
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| 基金项目： | 国家"十一五"科技支撑计划资助项目，国家"十一五"科技支撑计划资助项目，国家"973"重点基础研究发展规划资助项目，国家自然科学基金资助项目 |
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| 摘 要： | 构树是喀斯特地区的先锋树种之一,文中分析了喀斯特地区不同干扰条件下构树萌枝种群的数量特征、年龄结构及空间分布格局。结果表明,不同干扰条件下的构树萌枝种群年龄结构呈现增长、稳定和衰退的趋势;萌枝种群结构可分为5种主要类型,各类型的数量和年龄结构与干扰有关,说明萌枝是主要的更新方式,干扰是影响萌枝产生的主要因素,中度干扰促进了构树萌枝的发展。萌枝种群的空间分布格局分析表明乔木层呈随机分布型,而灌木层呈集群分布型,主要与构树本身的生物学和生态学特性密切相关,同时受干扰及群落内生境异质性的影响。
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| 关 键 词： | 喀斯特 不同干扰 构树萌枝 种群结构 分布格局 |
Population structure and distribution pattern of Broussonetla papyrifera sprouting in different disturbed conditions |
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| WEI Yuan,YU Li-fei.Population structure and distribution pattern of Broussonetla papyrifera sprouting in different disturbed conditions[J].Journal of Fujian College of Forestry,2009,29(4). |
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| Authors: | WEI Yuan YU Li-fei |
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| Institution: | WEI Yuan1,2,YU Li-fei2 (1.School of Resources and Environmental Management,Guizhou College of Finance and Economics,Guiyang,Guizhou 550004,China,2.College of Forestry,Guizhou University,Guizhou 550025,China) |
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| Abstract: | Broussonetia papyrifera was one of pioneer tree species in karst region.The quantitative characteristics,the age structure and the spatial distribution patterns of B.papyrifera sprouting population were analyzed in different disturbance conditions of karst region.The results were as follows: The age structure of B.papyrifera sprouting population showed three kinds of trends of growth,stability and decline under the different interference;The structure of sprouting population could be divided into 5 main typ... |
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| Keywords: | karst different disturbance Broussonetia papyrifera sprouting population structure distribution pattern |
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