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林业资源管理 ›› 2021, Vol. 0 ›› Issue (2): 149-157.doi: 10.13466/j.cnki.lyzygl.2021.02.020

• 研究简报 • 上一篇    下一篇

黔西北地区云南松种群数量动态及空间分布格局

何斌(), 李青, 李仰征, 李望军   

  1. 1.贵州省典型高原湿地生态保护与修复重点实验室,贵州毕节 551700
    2.贵州工程应用技术学院 生态工程学院,贵州 毕节 551700
  • 收稿日期:2021-03-12 修回日期:2021-04-09 出版日期:2021-04-28 发布日期:2021-06-03
  • 作者简介:何斌(1980-),男,山西朔州人,副教授,博士,主要从事森林生态学和恢复生态学研究。Email: hebin23kewen@163.com
  • 基金资助:
    国家自然科学基金(41871031);国家自然科学基金(31860111);贵州省科技计划项目“植物—土壤—微生物互作调控喀斯特地区人工林森林功能的机制研究”(黔科合基础-ZK[2021]一般 231);毕节市科学技术项目“黔西北地区濒危植物黄杉群落特征及其种群维持机制”(毕科合字[2019]3号)

Quantitative Dynamics and Spatial Distribution Pattern of Pinus yunnanensis Population in Northwest of Guizhou Province

HE Bin(), LI Qing, LI Yangzheng, LI Wangjun   

  1. 1. The Key Laboratory of Ecological Protection and Restoration of Typical Plateau Wetland in Guizhou Province,Bijie,Guizhou 551700,China
    2. College of Ecological Engineering,Guizhou University of Engineering Science,Bijie,Guizhou 551700,China
  • Received:2021-03-12 Revised:2021-04-09 Online:2021-04-28 Published:2021-06-03

摘要:

研究种群数量动态和空间分布格局对阐明种群的发展机制和各种生态过程及群落的稳定性和演替规律等具有重要意义。以贵州省西北地区云南松为研究对象,通过典型样地调查,应用“空间代替时间”的方法,运用种群动态量化方法、静态生命表、扩散系数、聚块性指数、丛生指数等分析云南松种群动态数量特征和空间分布格局。结果表明:1)云南松种群龄级结构呈纺锤型,个体主要集中分布在Ⅲ—Ⅵ龄级(占78.93%)。2)种群存活曲线趋近于Deevey-Ⅱ型,整体呈增长趋势,但趋于稳定。3)云南松种群的空间分布格局总体上为集群分布,但不同样地种群的集群程度存在一定差异;随着龄级的增加,种群空间分布格局由集群分布向均匀分布转变。

关键词: 云南松, 种群结构, 静态生命表, 存活曲线, 空间分布格局

Abstract:

The study of population dynamics and spatial distribution pattern is of great significance to elucidate the population development mechanism,various ecological processes,as well as the stability and succession law of the community.This study aimed to clarify the structure of Pinus yunnanensis population in the northwest part of Guizhou Province.Through data from field survey and the method of “space instead of time”,the population dynamic quantitative characteristics are studied based on the static life table and quantitative analysis methods.The population distribution pattern was analyzed with the diffusion coefficient,aggregation intensity index and clumping index.The results showed that:(1)The population structure of P.yunnanensis was spindle type,and mainly aggregated on age classⅢ—ⅥⅠ(78.93%).(2)The population survival curves tended to be Deevey-Ⅱ type,indicating that the population was on an overall growth trend,but gradually tended to be stable.(3)The population distribution pattern was generally cluster distribution,but there were some differences in the degree of clustering of populations in different plots.With the increase of age class,the spatial distribution pattern of population changed from cluster distribution to uniform distribution.This study can provide theoretical basis for the sustainable management of Pinus yunnanensis forest and further provide reference for the management and protection of forest ecosystem in karst areas.

Key words: Pinus yunnanensis, population structure, static life table, survival curve, spatial distribution pattern

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