黄连木群落的生物多样性与天然更新  

Biodiversity and natural regeneration of Pistacia chinensis communities in the South Taihang Mountains

作　　者：张孟仁 苏晓迪 张学献 叶先亮 ZHANG Mengren;SU Xiaodi;ZHANG Xuexian;YE Xianliang(Department of Ecological Engineering and Tourism,Henan Forestry Vocational College,Luoyang,Henan 471000,China;Henan Yuanzhi Forestry Planning and Design Limited Company,Zhengzhou,Henan 450000,China;Luanchuan County Forestry Bureau,Luanchuan,Henan 471500,China)

机构地区：[1]河南林业职业学院生态工程与旅游系,河南洛阳471000 [2]河南省远志林业规划设计有限公司,河南郑州450000 [3]栾川县林业局,河南栾川471500

出　　处：《森林与环境学报》2020年第6期597-604,共8页Journal of Forest and Environment

基　　金：国家“十一五”林业科技支撑计划(2008BADB0B0301);太行山野生林木种质资源专项普查(豫财农[2016]21号)。

摘　　要：黄连木的天然更新是一个复杂的生物学过程,为了探究南太行山区黄连木群落的生物多样性和天然更新状况,为黄连木群落的保育和恢复提供理论依据,采用典型样地调查、生物多样性指数计算及方差分析等对南太行山区黄连木群落的生物多样性和不同更新方式下的幼树苗级及高度转化率进行分析。结果表明:调查样地中,乔木层的优势度指数(C)最高,但灌木层与草本层植物的种类比乔木层丰富,在南太行山区形成了许多以黄连木为主的单优势种群落;黄连木幼树在Ⅱ级苗向Ⅲ级苗高度转化率差异显著,苗级在Ⅳ级出现苗级缺失现象;在实生更新与萌芽更新双重更新方式下,黄连木萌芽更新占据主要地位,适当进行人工干预,可以更好地恢复南太行山区的黄连木种质资源。The natural regeneration of Pistacia chinensis is a complex biological process.In order to explore the biodiversity and natural renewal status of the P.chinensis community in the South Taihang Mountains and provide a theoretical basis for the conservation and restoration of the P.chinensis community,typical plot survey methods,biodiversity index calculation,and analysis of variance were used to analyze the P.chinensis community in the South Taihang Mountains.Species diversity of the P.chinensis wood community and the level and high conversion rate of seedlings under different regeneration patterns were analyzed.The results showed that the tree layer had the highest dominance index in the survey plots;however,the species of shrubs and herbaceous plants were more abundant than the trees.A monodominant population dominated by P.chinensis was observed on the southern slope of the Taihang Mountains.There was a significant difference in the height conversion rate of P.chinensis saplings from levelⅡseedlings to levelⅢseedlings;however,the phenomenon of diameter loss was observed at seedling levelⅣ.Under the dual regeneration mode of seed renewal and germination renewal,the germination renewal of P.chinensis occupied a major position.Thus,appropriate manual intervention can better restore the germplasm resources of P.chinensis in the South Taihang Mountains.

关 键 词：黄连木 物种重要值 生物多样性 更新方式 南太行山区 

分 类 号：S727.3[农业科学—林木遗传育种]