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林业科学 ›› 2001, Vol. 37 ›› Issue (2): 29-35.doi: 10.11707/j.1001-7488.20010204

• 论文及研究报告 • 上一篇    下一篇

宝天曼落叶阔叶林种间联结性研究

史作民 刘世荣 程瑞梅 蒋有绪   

  1. 中国林业科学研究院森林生态环境与保护研究所,北京100091
  • 收稿日期:1999-09-08 修回日期:1900-01-01 出版日期:2001-03-25 发布日期:2001-03-25

INTERSPECIFIC ASSOCIATION OF PLANT POPULATIONS IN DECIDUOUS BROAD-LEAVED FOREST IN BAO TIANMAN

Shi Zuomin,Liu Shirong,Cheng Ruimei,Jiang Youxu   

  1. Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry Beijing100091
  • Received:1999-09-08 Revised:1900-01-01 Online:2001-03-25 Published:2001-03-25

摘要:

基于2×2联列表,应用X2 统计量度量、共同出现百分率和联结系数等公式测定了河南宝天曼保护区海拔1150~1500m范围落叶阔叶林的2 0种主要乔木和26种主要灌木种群的种间联结性。结果表明:在该区森林植被研究中,以X2 检验为基础,结合共同出现百分率PC和联结系数AC来测定植物种群的联结性,效果较好。种间正联结性越强,其生态位重叠值越大,种间负联结性越强,其生态位重叠值越小。根据种间联结特征,将20种主要乔木划分为4个生态种组。

关键词: 落叶阔叶林, 种间联结, 宝天曼

Abstract:

Based on the 2×2 contingency table, the interspecific associations of tree and shrub species in the deciduous broad-leaved forest at the elevation from 1150m to 1500m in Bao Tianman, Henan province were studied by different indices. The results show that X2 test, together with percentage co-occurrence (PC) and association coefficient (AC) was effective way to measure the association. The more intense the positive association was, the larger the value of niche overlap was; the more intense the negative association was, the smaller the value of niche overlap was. In the light of the interspecific association, tree species can be divided into four ecogroups of species.

Key words: Deciduous broad-leaved forest, Interspecific association, Bao Tianman