伯乐树致濒机理研究  

Research on Endangered Mechanism of Bretschneidera sinensis

作　　者：张季 田华林 朱雁 蔡卫东 王玉奇 刘宗媚 何可权 ZHANG Ji;TIAN Hua-lin;ZHU Yan;CAI Wei-dong;WANG Yu-qi;LIU Zong-mei;HE Ke-quan(Forest Pest Control and Quarantine Station of Qiannan Prefecture in Guizhou Province, Duyun Guizhou 558000;Forestry Station of Qiannan Prefecture;Forestry Survey and Planning Institute of Qiannan Prefecture;Forestry Institute of Qiannan Prefecture;State Forest Farm of Dushan County)

机构地区：[1]贵州省黔南州森林病虫防治检疫站,贵州都匀558000 [2]黔南州营林总站 [3]黔南州林业调查规划院 [4]黔南州林业科学研究所 [5]独山县国营林场

出　　处：《现代农业科技》2019年第4期123-124,127,共3页Modern Agricultural Science and Technology

基　　金：贵州省林业科学技术研究项目(2009-12);贵州省农业攻关项目(黔科合NY字〔2010〕3059号);黔南州农业科技项目[黔南科合2010农字(027)号]

摘　　要：在试验中模拟天然林中伯乐树种群生活状态,结果表明,天然林中伯乐树种子的发芽率总体处于较低水平,最高的发芽率也只有39%,远远低于大田育苗(发芽率89.5%);鸟类、老鼠等动物喜食伯乐树种子,不利于种子的萌发;伯乐树苗木生长与光照环境密切相关,而决定光照环境的因子是上层林冠类型、郁闭度、林冠疏密程度等,一年生伯乐树苗木生长除了要求上层林冠光照环境好之外,还需要灌木层的适当遮荫,而二年生伯乐树苗木生长则要求充足的直射光,不需要灌木层的遮荫。In the experiment,the living condition of Bretschneidera sinensis population in the natural forest was stimulated.The results demonstrated that the overall germination rate of B.sinensis seeds in the natural forest was relatively low,and the highest germination rate was only 39%, which was far lower than that of field seedlings (89.5%).Birds and mice liked to eat B.sinensis seeds, which was not conducive to seed germination. The growth of B.sinensis seedling was closely related to light environment.The factors determining the light environment included overstory type, crown density and canopy density.The growth of annual seedlings of B.sinensis required not only good light environment for overstory, but also proper shade for shrub layer.The growth of biennial seedlings of B.sinensis required adequate direct light but no shade for shrub layer.

关 键 词：伯乐树 致濒机理 发芽率 生长量 

分 类 号：S718.5[农业科学—林学]