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林业资源管理 ›› 2016›› Issue (3): 61-66.doi: 10.13466/j.cnki.lyzygl.2016.03.012

• 科学研究 • 上一篇    下一篇

湖南阳明山甜槠次生林优势种群结构与分布格局研究

颜玉娟1, 谢红梅1, 陈星可1, 曾乐媛1, 王桔红2   

  1. 1.中南林业科技大学 风景园林学院,长沙 410004;
    2.韩山师范学院,广东 潮州 521000
  • 收稿日期:2016-03-24 修回日期:2016-04-25 出版日期:2016-06-28 发布日期:2020-11-02
  • 作者简介:颜玉娟(1968-),女,四川大竹人,副教授,博士,主要从事园林植物及其景观规划设计的教学和相关研究。Email:1964610285@qq.com
  • 基金资助:
    国家自然科学基金项目(31470021);中南林业科技大学青年基金项目(101|0435)

Population Structure and Distribution Pattern of Secondary Castanopsis eyrei Forest in Yangmingshan,Hunan Province

YAN Yujuan1, XIE Hongmei1, CHEN Xingke1, ZENG Leyuan1, WANG Juhong2   

  1. 1. School of Landscape Architecture,Central South University of Forestry & Technology,Changsha 410004,China;
    2. Hanshan Normal University,Chaozhou,Guangzhou 521000,China
  • Received:2016-03-24 Revised:2016-04-25 Online:2016-06-28 Published:2020-11-02

摘要: 运用典型样方调查法,从龄级结构、静态生命表特征、存活曲线和4种聚集强度指标(分布系数R、负二项指数K、平均拥挤度指数 M*、聚块性指数PAI)等方面研究湖南阳明山国家森林公园甜槠次生林种群结构特征和分布格局。结果表明:1) 阳明山甜槠种群结构为纺锤形,属于衰退型种群;2) 甜槠种群在总体上存活数随龄级增加先上升后降低,存活曲线接近Deevey I型,即曲线凸型;3) 在研究样地内,甜槠种群的分布格局整体呈现为集群分布,符合最普遍的种群样式。种群结构和分布格局与生态因子、生物学特性密切相关,自然干扰和人为破坏也有一定的影响。

关键词: 甜槠次生林, 种群结构, 分布格局, 阳明山

Abstract: By using the methods of typical quadrat,the structure characteristics and distribution pattern of Castanopsis eyrei populations of secondary forest through age stucture,lifetable characteristics,survival curves and 4 aggregation intensity index (distribution coefficient R,negative binomial parameter K,mean crowding index M* and accumulation index PAI) were studied in the National Forest Park of Yangmingshan,Hunan.The results showed that:1)the age structure of the C.eyrei population of the Yangmingshan followed a spindle shape,which indicated that the population was declining;2)In general,the survival rate of C.eyrei population increased first and then decreased with the increase of age,the survivorship approximated the type of the DeeveyI.3)In the study plots,the distribution pattern of C.eyrei population showed cluster distribution which coincides with the most common pattern of population.The population structure and distribution pattern were closely related to ecological factors and biological characteristics,natural disturbance and human destruction also had certain effect.The research results can provide a theoretical basis for natural regeneration and conservation of dominant population of Yangmingshan secondary C.eyrei forest.

Key words: secondary Castanopsis eyrei forest, population structure, distribution pattern, Yangmingshan

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