南太行黄连木群落特征及空间分布格局  

Characteristics and Spatial Distribution Pattern of Pistacia chinensis Community in South Taihang Mountains

作　　者：梅继林 苏晓迪 张硕 焦春雨 朱学灵 刘勇 MEI Jilin;SU Xiaodi;ZHANG Shuo;JIAO Chunyu;ZHU Xueling;LIU Yong(Huangchuan Forestry Technical Guidance Station,Xinyang 464000,China;Henan Yuanzhi Forestry Planning and Design Limited Company,Zhengzhou 450000,China;Northwest Surveying and Planning Institute of National Forestry and Grassland Administration)

机构地区：[1]潢川县林业工作站,河南信阳464000 [2]河南省远志林业规划设计有限公司,河南郑州450000 [3]国家林业和草原局西北调查规划院

出　　处：《四川林业科技》2023年第1期77-83,共7页Journal of Sichuan Forestry Science and Technology

基　　金：国家林业科技支撑计划(2008BADB0B0301);太行山野生林木种质资源专项普查(河南省林业局豫林种发[2016]20号)。

摘　　要：群落结构特征可以反映一定空间范围内的群落稳定性和发展更新趋势。通过调查分析南太行山区典型样地中的群落物种多样性、径级结构特征及种群分布格局,发现调查区内乔木层的黄连木重要值最高为59.20,成为该区的优势种。黄连木种群的径级结构与整个调查区的群落径级结构均呈现典型的倒“J”型,属于种群增长型,即群落具有较强的自我更新能力,且黄连木更新能力更强。调查区中的黄连木、栓皮栎等主要优势种呈现聚集分布,其他树种随机分布,而黄连木的方差均值比率(v/m)、聚集指数(Ci)分别高达262.37和261.37,在该调查区的所有乔木树种中聚集程度最大。结果表明:相比于其他树种,黄连木自我更新能力较高、适应性更强,并在南太行山区形成以黄连木为主要优势种的落叶阔叶混交林。Community structure characteristics can reflect the stability, development and renewal trends of community within a certain spatial range. Based on the investigation and analysis of the community species diversity, diameter class structure characteristics and population distribution patterns in the typical sample plots in the south Taihang Mountains,it was found that the highest important value of P. chinensis in the tree layer of the survey area was 59.20, which became the dominant species in the area. The diameter class structure of P. chinensis population and the community structure of the entire survey area showed a typical inverted “J” type, which belong to the population growth type,that is, the community had stronger self-renewal ability, and P. chinensis was stronger. The dominant species such as P.chinensis and Quercus variabilis in the survey area showed an aggregate distribution, while other tree species were randomly distributed. The mean variance ratio(v/m) and aggregation index(Ci) of P. chinensis were as high as 262.37and 261.37, respectively, which was the highest among all tree species in this investigation area. The results indicated that P. chinensis had higher self-renewal ability and stronger adaptability than other tree species, so a deciduous broadleaved mixed forest with P. chinensis as the main dominant species was formed in the South Taihang Mountains.

关 键 词：南太行山区 黄连木 重要值 物种多样性 径级结构 空间分布格局 

分 类 号：S792.99[农业科学—林木遗传育种]