欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志

• 综述与专论 • 上一篇    下一篇

林木大年结实特征及其影响因素研究进展

殷东生1,2,沈海龙1*   

  1. 1东北林业大学林学院,  哈尔滨 150040;  2黑龙江省林业科学研究所, 哈尔滨 150081)
  • 出版日期:2016-02-10 发布日期:2016-02-10

Research review on the characteristics of mast seeding in forest trees and its influencing factors.

YIN Dong-sheng1,2, SHEN Hai-long1*   

  1. (1School of Forestry, Northeast Forestry University, Harbin 150040, China; 2Forestry Research Institute of Heilongjiang Province, Harbin 150081, China)
  • Online:2016-02-10 Published:2016-02-10

摘要: 大年结实是树木普遍的繁殖行为,在种群水平表现出较高的年际变化,存在不规律的间隔期。这种结实规律有利于调节捕食者种群数量,提高授粉效率,促进种子散布和降低种子捕食者的影响,是一种进化的生殖策略,但其对生产上种实高产稳产非常不利。本文综述了大年结实的特点以及大年结实对树木营养生长、资源消耗的影响,分析了影响大年结实的主要因素(碳水化合物、矿质养分、激素水平、气候因子等),最后提出了我国大年结实研究应该努力的方向。

关键词: 竹林, BEPS模型, LAI同化, 双集合卡尔曼滤波, 碳通量

Abstract: Mast seeding is one of the most peculiar reproductive behaviors observed in trees with high interannual variation at the population level following irregular intervals. Mast seeding has several demonstrated fitness benefits, including adjusting the predator population, enhancing pollination rate, increasing attraction of seed dispersers and reducing the impact of seed predators. It is an evolutionary strategy beneficial for the reproductive success of a population, but disadvantageous to high and stable yield in seed and fruit production. This paper reviewed the characteristics of mast seeding and its effects on vegetative growth and resource consumption of trees, and analyzed the main factors impacting mast seeding, including carbohydrates, mineral nutrients, hormone levels, and climate factors. Finally, the research directions for mast seeding in forest trees in China were proposed.

Key words: carbon flux, LAI assimilation, Dual EnKF, BEPS model, bamboo forest