紫椴天然种群空间分布与生命结构特征分析  

Analysis of Spatial Distribution and Life Structure Characteristics of Tilia amurensis Natural Population

作　　者：郭忠玲[1] 宋雪婷 范春楠[1] 刘丹 郭梦媛[1] 张永鑫 GUO Zhongling;SONG Xueting;FAN Chunnan;LIU Dan;GUO Mengyuan;ZHANG Yongxin(Forestry College of Beihua University,Jilin 132013,China;College of Forestry Engineering,Guangxi Ecological Engineering Vocational and Technical College,Liuzhou 545000,China;Forestry College of Northeast Forestry University,Harbin 150040,China;Shantou Forestry Research Institute,Shantou 515000,China)

机构地区：[1]北华大学林学院,吉林吉林132013 [2]广西生态工程职业技术学院林业工程学院,广西柳州545000 [3]东北林业大学林学院,黑龙江哈尔滨150040 [4]汕头市林业科学研究所,广东汕头515000

出　　处：《北华大学学报（自然科学版）》2022年第6期726-732,共7页Journal of Beihua University（Natural Science）

基　　金：国家重点研发课题(2017YFD0600606);吉林省科技发展计划项目(20190301084NY).

摘　　要：为了解集安市清河镇紫椴天然母树林保护区天然紫椴种群的空间分布格局和生存结构特征,开展样地调查,分析紫椴种群径级结构、空间格局、静态生命表.结果表明:调查区域紫椴种群径级分布呈正偏山状分布,属于衰退型种群;紫椴种群在0~14 m空间尺度上呈聚集分布,在14~50 m空间尺度上呈随机分布.通过对紫椴种群构造的静态生命表发现,种群死亡率和消失率均随径级增大直线上升,生命期望值逐渐减小,种群生存能力逐渐降低;紫椴种群的存活曲线属于Deevey-Ⅱ型,存活率随径级增大直线下降,死亡率直线上升.In order to understand the spatial distribution pattern and survival structure characteristics of natural Tilia amurensis populations in Qinghe Town,Ji’an City,carry out sample surveys,analyze size structure,spatial pattern,static life table.The result showed that the size class distribution of Tilia amurensis population in the survey area is in a positive-to-slanted mountain-like distribution,belonging to a declining species;Tilia amurensis populations are clustered and distributed on the spatial scale of 0~14 m,it is randomly distributed on the spatial scale of 14~50 m.Through the static life table of Tilia amurensis population structure,the mortality and disappearance rate of the population both increased linearly with the diameter class,life expectancy gradually decreases as the diameter level increases,the viability of the population gradually decreases;The survival curve of Tilia amurensis population belongs to Deevey-Ⅱ,the survival rate decreased linearly with the increasing of diameter class,the death rate skyrocketed.

关 键 词：紫椴 径级结构 空间格局 静态生命表 

分 类 号：S759.9[农业科学—森林经理学]