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生态学杂志 ›› 1990, Vol. ›› Issue (6): 20-23,6.

• 研究报告 • 上一篇    下一篇

兴安落叶松结实规律与长短枝习性的关系

单建平1, 徐振邦1, 陶大立1, 杨善勋2   

  1. 1. 中国科学院沈阳应用生态研究所;
    2. 图强林业局
  • 收稿日期:1990-03-24 修回日期:1990-06-26 出版日期:1990-12-10

Fruiting Pattern of Larix gmelinii in Relation to Its Short and Long Shoot Behaviour

Shan Jianping1, Xu Zhenbang1, Tao Dali1, Yang Shanxun2   

  1. 1. Institute of Applied Ecology, Academia Sinica, Shenyang;
    2. Tuqiang Forestry Bureau
  • Received:1990-03-24 Revised:1990-06-26 Online:1990-12-10

关键词: 春飞蓬, 最大熵生态位元模型, 生态位, 潜在适生区

Abstract: Plot investigations indicate that the fruiting percentage of Larix gmelinii increases with theincrease of DBH.After a medium forest fire,seed producticn reduces in 1—2 years.By flower bud investigation in August,Seed production is predicted for the proceeding year,which is verified to be reliable and feasible.From the consideration of short shoot consumption in a major seed year,the fruiting periodicity of Larix gmelinii is estimated as3—4 years,which is also supported by the data of fruiting interval investigation for individual trees.Unfavorable events such as late frost or drought can delay the major seedyear,but favorable climate can not shorten the time interval between two major seed years.

Key words: Erigeron philadelphicus, MaxEnt model, niche, potential suitable distribution area