云南省千家寨不同坡向大理茶群落结构比较

大理茶（Camellia talinensis）为国家二级保护植物,近年来遭受人类的过度砍伐与采摘,已逐渐濒危。以目前我国发现的面积最大、保存最完整的云南省千家寨野生大理茶群落为研究对象,通过样方调查的方法研究其不同坡向群落的树种多样性及群落结构。结果表明,大理茶为乔木第二层的优势种,其第一层的优势种为香花木姜子（Litsea panamonja）、腾冲栲（Castanopsis wattii）、截头石栎（Lithocarpustrun catus）等;大理茶在东坡、南坡的群落中为优势种,在西坡、北坡的群落中为亚优势种;高度级、径级分析均表明,物种丰富度、多度呈现出随高度级、径级增加而降低的趋...

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Published in广东农业科学 Vol. 41; no. 15; pp. 20 - 24
Main Author 齐丹卉 刘文胜
Format Journal Article
LanguageChinese
Published 西南林业大学环境科学与工程学院,云南昆明,650224%西南林业大学环境科学与工程学院,云南昆明650224 2014
中南林业科技大学生命科学与技术学院,湖南长沙410004
Subjects
千家寨
坡向
大理茶
物种多样性
群落结构
千家寨
大理茶
坡向
物种多样性
群落结构
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ISSN1004-874X

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Summary:大理茶（Camellia talinensis）为国家二级保护植物,近年来遭受人类的过度砍伐与采摘,已逐渐濒危。以目前我国发现的面积最大、保存最完整的云南省千家寨野生大理茶群落为研究对象,通过样方调查的方法研究其不同坡向群落的树种多样性及群落结构。结果表明,大理茶为乔木第二层的优势种,其第一层的优势种为香花木姜子（Litsea panamonja）、腾冲栲（Castanopsis wattii）、截头石栎（Lithocarpustrun catus）等;大理茶在东坡、南坡的群落中为优势种,在西坡、北坡的群落中为亚优势种;高度级、径级分析均表明,物种丰富度、多度呈现出随高度级、径级增加而降低的趋势,说明上层植物为下层植物生长创造了良好的环境;坡向对大理茶各群落物种多样性有较大影响,其中,西坡具有较高的树种多样性（S、D、H）,南坡、北坡居中,东坡的最低;南坡与其他各坡向树种相似性较低。并提出了相应的保护措施。
Bibliography:44-1267/S
QI Dan-hui;LIU Wen-sheng; （1. College of Environmental Sciences and Engineering, Southwest Forestry University, Kunming 650224, China; 2. College of Life Science and Technology, Cer~tral South University of Forestry and Technology, Changsha 410004, China）
Camellia talinensis is one of the national protected two-grade rare plants,and is becoming endangered by over felling and picking in recent years.C.talinensis communities of Qianjiazhai,located in Zhenyuan county Yunnan province,is the largest and best-preserved C.talinensis community in China.To better protect C.talinensis,we selected C.talinensis communities of Qianjiazhai as test objects,tree diversity and community structure were studied by field investigation.The results showed what C.talinensis was the dominant species of the second layer of trees,and the dominant species of the first layer included Litsea panamonja,Castanopsis wattii,Lithocarpustrun catus and so on.C.talinensis is the dominant species of the communities on the east- and south-
ISSN:1004-874X