| 青山湖针阔混交林优势树种竞争的数量研究 |
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| 引用本文： | 辛营营,韦新良.青山湖针阔混交林优势树种竞争的数量研究[J].浙江林学院学报,2011,28(4):601-606. |
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| 作者姓名： | 辛营营 韦新良 |
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| 作者单位： | 浙江农林大学环境与资源学院,浙江临安,311300 |
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| 基金项目： | 浙江省自然科学基金资助项目(Y304369) |
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| 摘 要： | 针阔混交林是浙江杭州青山湖地区主要森林类型之一，研究树种的种内种间竞争特性对改善森林结构，提高森林景观品质具有重要作用。采用典型选样法设置研究样地，并对样地内树种的各个测树因子进行调查统计，应用Hegyi竞争指数对数据进行分析并讨论，其中对竞争木的确定方法进行改进，通过竞争木与对象木冠幅和距离之间的关系确定竞争木。结果显示：青山湖针阔混交林优势树种的种内竞争大于种间竞争，优势树种呈现出一定的聚集分布状态，特别是杉木Cunnunghamia lanceolata，甜槠Castanopsis eyrei，青皮木Schoepfia jasminodora，木荷Schima superba聚集程度非常高；白栎Quercus fabri和枫香Liquidambar formosana，白栎Quercus fabri和甜槠Castanopsis eyrei，化香Platycarya strobilacea和杉木种间竞争剧烈，说明它们具有相似的生态位需求，对环境及资源的争夺较为激烈。竞争指数与对象木胸径大小符合幂函数关系，并达到显著水平，优势种群种内、种间的竞争强度随着对象木胸径的增大而下降，并维持在较低的水平。图2表4参9
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| 关 键 词： | 森林生态学 针阔混交林 优势树种 Hegyi竞争指数 竞争木选择 青山湖 |
Dominance in a mixed conifer and broadleaved forest of Qingshan Lake,Zhejiang |
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| XIN Ying-ying,WEI Xin-liang.Dominance in a mixed conifer and broadleaved forest of Qingshan Lake,Zhejiang[J].Journal of Zhejiang Forestry College,2011,28(4):601-606. |
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| Authors: | XIN Ying-ying WEI Xin-liang |
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| Institution: | XIN Ying-ying,WEI Xin-liang(School of Environmential Sciences and Resources,Zhejiang A & F University,Lin'an 311300,Zhejiang,China) |
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| Abstract: | To improve forest structure and forest landscape quality,tree intraspecific and interspecific competition characteristics of a conifer and broadleaf mixed forest,one of the main forest types of the Qingshan Lake Area,were studied.Methods included use of typical sampling laws to establish research plots with a survey of each measurement factor for species within the plots.The Hegyi competition index was used to analyze and to suggest improvements in defining dominant trees.Dominant trees were determined by j... |
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| Keywords: | forest ecology mixed conifer and broadleaf forest dominant tree species Hegyi competition index competitive tree selection Qingshan Lake |
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