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应用生态学报 ›› 2004, Vol. ›› Issue (3): 357-362.

• 研究论文 •    下一篇

秦岭山地华山松林群落学特征研究

王得祥, 刘建军, 李登武, 雷瑞德, 兰国玉   

  1. 西北农林科技大学林学院, 杨凌 712100
  • 收稿日期:2002-12-10 修回日期:2003-05-29 出版日期:2004-03-15
  • 通讯作者: 王得祥,男,1966年生,博士,副教授,主要从事生态学的教学和科研工作,发表论文28篇.Tel:029-87082124,E-mail:Wangdx66@sohu.com
  • 基金资助:
    国家林业局“十五”重点资助项目(200104)

Community characteristics of Pinus armandi forest on Qinling Mountains

WANG Dexiang, LIU Jianjun, LI Dengwu, LEI Ruide, LAN Guoyu   

  1. College of Forestry, Northwest Sci-Tech University of Agricultural and Forest, Yangling 712100, China
  • Received:2002-12-10 Revised:2003-05-29 Online:2004-03-15

摘要: 以秦岭南坡华山松群落为对象,分析了其群落特征.结果表明,华山松群落共容纳种子植物166种,分属51科111属,区系组成丰富;在植物区系地理成分上,属的分布类型以温带性质居多,共65个,占总属数的66.7%,表明了群落植物区系组成的温带亲缘;在群落外貌特征上,华山松群落高位芽植物最多,占75.9%,叶级以中型叶为主,共96种,占57.8%,叶型以单叶为主,共139种,占83.7%;群落可分为乔、灌、草3个层次,亦有层间植物伴生;随年龄增长,群落中华山松种群空间结构呈集群分布→随机分布→集群分布变化,聚块指标变化不大,其聚块面积在100m2左右波动;种群格局强度随年龄阶段变化缓慢,处于较弱的生境异质性变化状态中;尽管缺失某些年龄阶段的幼数、幼苗现象存在,华山松林作为一个稳定群落在该区域仍占有优势地位.

Abstract: The community characteristics of Pinus armandi forest distributed on the mid-west zone of Qinling Mountains' south slope were investigated.The results showed that there were 166 seed plants belonging to 51 families,111generas.Among them,65 genera,66.7% of the total,belonged to temperate biome.There was a closely relationship between Pinus armandi forest and the temperate biome.As regards to the physiognomy of the community,phanerophyte made up 75.9% of the total,dominating the community.In the community,96 species with middle-sized leaves made up 57.8%,and there were 139 single leaf species,accounted for 83.7% of the total.There was a complicated vertical structure in the community,which could be divided into three layers:arbor layer,shrub layer and herb layer.In addition,there were also a lot of inter-stratum plants in the community.It is also found that the lack of seedlings,saplings and small trees was due to both the self-thinning caused by intra-specific competition and the alien-thinning by inter-specific competition for the light resource in the stand.The population of P.armandi was characterized with the patch size about 100 m2.The dynamics of the community showed that the community was stable and in a process of development.

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