甘肃连城国家级自然保护区青海云杉种内种间竞争的研究

doi:10.13466/j.cnki.lyzygl.2008.05.012

林业资源管理 ›› 2008, Vol. 0 ›› Issue (5): 86-89.doi: 10.13466/j.cnki.lyzygl.2008.05.012

甘肃连城国家级自然保护区青海云杉种内种间竞争的研究

满自红¹, 张小翠², 瞿学方¹, 张育德¹, 陈学林^2,3

1.甘肃连城国家级自然保护区管理局,甘肃永登 730333;
2.西北师范大学生命科学学院,兰州 730070;
3.兰州大学干旱与草地生态教育部重点实验室,兰州 730000)

收稿日期:2008-08-26 修回日期:2008-09-19 出版日期:2008-10-28 发布日期:2020-12-08
作者简介:满自红(1966-),男,甘肃永登人,高级工程师,主要从事保护区科研宣教工作。
基金资助:
兰州市科技三项经费项目(06-2-45)

Study on Intraspecific and Interspecific Competition of Picea crassifolia in Liancheng National Nature Reserve of Gansu

MAN Zihong¹, ZHANG Xiaocui², QU Xuefang¹, ZHANG Yude¹, CHEN Xuelin^{2, 3}

1. Management Bureau of Liancheng National Nature Reserve,Yongdeng,Gansu 730333,China;
2. College of Life Science,Northwest Normal University,Lanzhou,Gansu 730070,China;
3. Key Laboratory of Arid and Grassland Ecology of the Ministry of Education,Lanzhou University,Lanzhou,Gansu 730000,China

Received:2008-08-26 Revised:2008-09-19 Online:2008-10-28 Published:2020-12-08

摘要/Abstract

摘要： 采用Hegyi 提出的单木竞争指数模型对甘肃连城国家级自然保护区的青海云杉种内、种间的竞争指数进行定量分析。结果表明:青海云杉种内竞争指数随着林木径级的增大而逐渐减小,种内竞争远远大于种间竞争,种内种间竞争指数的大小顺序为青海云杉>青杄>桦叶四蕊槭>山杨>红桦>柳树;竞争指数与对象木的胸径之间服从幂函数关系CI=AD^-B,当青海云杉胸径达到45cm以上时,竞争指数变化很小;青海云杉的竞争指数与海拔和郁闭度呈显著正相关性。

关键词: 甘肃, 连城国家级自然保护区, 青海云杉, 种内竞争, 种间竞争

Abstract: Using Hegyi’ s competition index model for individual tree,we analyse the intraspecific and interspecific competition of Picea crassifolia in Liancheng National Nature Reserve of Gansu.The results show that intraspecific competition intensity of Picea crassifolia reduced with increase in diameter scale of the trees.The intraspecific competition is more bigger than interspecific competition.The order of competition intensity(CI)is:Picea crassifolia>Picea wilsonii>Acer tetramerum var.betulifolium>Populus davidiana>Betula albo-sinensis>Salix sp.The relationship between competition intensity and individual growth of objecttive tree follows closely the equation CI=AD^-B.When the diameter scale reaches 45 cm,there is little change of competition intensity.The CI of Picea crassifolia has plus correlation with altitude and crown density.

Key words: Gansu, Liancheng National Nature Reserve, Picea crassifolia, intraspecific competition, interspecific competition

中图分类号:

满自红, 张小翠, 瞿学方, 张育德, 陈学林. 甘肃连城国家级自然保护区青海云杉种内种间竞争的研究[J]. 林业资源管理, 2008, 0(5): 86-89.

MAN Zihong, ZHANG Xiaocui, QU Xuefang, ZHANG Yude, CHEN Xuelin. Study on Intraspecific and Interspecific Competition of Picea crassifolia in Liancheng National Nature Reserve of Gansu[J]. FOREST RESOURCES WANAGEMENT, 2008, 0(5): 86-89.

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甘肃连城国家级自然保护区青海云杉种内种间竞争的研究

Study on Intraspecific and Interspecific Competition of Picea crassifolia in Liancheng National Nature Reserve of Gansu

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