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林业科学 ›› 1997, Vol. 33 ›› Issue (4): 289-298.

• 论文及研究报告 •    下一篇

常绿阔叶林树种组成株数比例和材积比例变化规律的研究*

张水松1,詹有生2,陈长发2,敖向阳2   

  1. 1. 林业部南方山地用材林培育实验室 福州 350012
    2. 江西省林科所 南昌 330000
  • 收稿日期:1995-10-17 出版日期:1997-07-25 发布日期:1997-07-25

THE EVOLVING PATTERN OF TREE SPECIES COMPOSITION, NUMBER AND VOLUME PROPORTIONS IN EVERGREEN BROAD-LEAVED FORESTS

Shuisong Zhang1,Yousheng Zhan2,Changfa Chen2,Xiangyang Ao2   

  1. 1. Southern mountain timber forest cultivation laboratory, the Ministry of Forestry Fuzhou 350012
    2. Jiangxi forestry institute Nanchang 330000
  • Received:1995-10-17 Online:1997-07-25 Published:1997-07-25

摘要:

针对常绿阔叶林树种组成结构复杂,种类繁多的特点,对林分树种组成结构、数量结构和产量结构的动态变化规律及其相互关系进行了10年的研究,结果表明:(1)林分树种划分为重要速生树种、重要慢生树种和次要树种3类; (2)3类树种组成结构和株数比例(N%)随年龄(A)增加呈规律性变化。重要速生树种株数比例与年龄呈线性关系,组成和数量结构较稳定;重要慢生树种株数比例与年龄呈双曲线关系,相关密切;次要树种株数比例与年龄呈二次抛物线关系,相关密切; (3)3类树种材积比例(V%)随年龄的变化规律与株数比例的变化规律相类似,但相比之下,重要速生树种的材积比例的变化尤为重要,而另2类树种的株数比例的变化更重要些。(4)3类树种材积比例与株数比例之间均存在线性相关。其中重要速生树种在林分中生产力较高。

关键词: 常绿阔叶林, 树种生长类型, 株数比例, 材积比例

Abstract:

In accordance with the characteristics of species diversity and the complicacy of tree species composition in evergreen broad - leaved forests, a ten - years' study on the evolving pattern of tree species composition, number and volume proportion in stands and their interrelation was carried on by means of the division and mergence of tree species growth types of main forest types. The results indicate that (1) the tree species composition in stands can be divided into three kinds, i. e. main fast growing species, main slow growing species and secondary (associated) species; (2) The number proportion (N%) and age (A) of main fast growing species assume linear ralation, N% and A of main slow growing species assume hyperbolical relation and this relation is mutually close; N% and A of decondary species assume quadratic parabolical relation and that is mutually close, too. (3) For the three kinds of tree species, the evolving pattern of the volume proportion (V%) is similar to that of N% with the increase of A, but for the main fast growing species the pattern of V% is larger than that of N% and for the rest two kinds the pattern of V% is smaller than that of N%; and (4) there is linear ralation between V% and N% for the three kinds of tree species, the productivity of the main fast growing species is higher than the others.

Key words: Evergreen broad-leaved forests, Tree species growth types, Tree species composition, Number proportion, Volume proportion