滇中矮杨梅种群结构与动态特征  

Population Structure and Dynamic Characteristics of Myrica nana in Central Yunnan

作　　者：杨艳波 蔡起航 巩合德[1] YANG Yan-bo;CAI Qi-hang;GONG He-de(School of Geography and Ecotourism,Southwest Forestry University,Kunming Yunnan 650244,P.R.China;College of Landscape Architecture and Horticulture Science,Southwest Forestry University,Kunming Yunnan 650244,P.R.China)

机构地区：[1]西南林业大学地理与生态旅游学院,云南昆明650224 [2]西南林业大学园林与园艺学院,云南昆明650224

出　　处：《西部林业科学》2022年第5期146-152,共7页Journal of West China Forestry Science

基　　金：国家自然科学基金(31560189);国家科技基础性工作专项子项目(2015FY110300)子课题“云南省灌丛植物群落调查(2015FY1103001-4)”。

摘　　要：为探讨矮杨梅种群结构特征和动态变化,以及种群更新和维稳机制,通过样地采样法,在滇中地区9个样地内选取27个样方,对样地内矮杨梅种群结构、动态特征进行研究分析。结果显示:矮杨梅种群数量结构呈增长型(V′=0.0777),矮杨梅种群发展趋于稳定;种群幼龄个体出现高死亡率,表明存活曲线趋于Deevey-Ⅲ型;经过2、4、6个大小级后,各级个体数呈小幅增长的趋势,种群存在自我恢复的能力。本研究结果为滇中地区矮杨梅灌丛及其伴生物种的监测和管理提供科学依据。In this paper,the population structure and dynamic characteristics of Myrica nana in central Yunnan were studied and analyzed by sampling method,and 27 quadrats were selected from 7 plots.The results showed that the population structure of M.nana was increasing(V′=0.0777),and the population development of M.nana tended to be stable.The high mortality rate of young individuals in the population indicates that the survival curve tends to Deevey-Ⅲtype.After 2,4 and 6 grades,the number of individuals at all levels showed a slight increasing trend,and the population had the ability of self-recovery.

关 键 词：矮杨梅 种群结构 存活曲线 生命表 时间序列 

分 类 号：S667.6[农业科学—果树学]