[1]于达勇,樊智丰,马长乐*,等. 云南榧树群落种内与种间竞争研究[J].西北林学院学报,2022,37(1):47-52.[doi:10.3969/j.issn.1001-7461.2022.01.07]
　YU Da-yong,FAN Zhi-feng,MA Chang-le*,et al. Intra-and Inter-specific Competition of Torreya yunnanensis Community[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2022,37(1):47-52.[doi:10.3969/j.issn.1001-7461.2022.01.07]
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 云南榧树群落种内与种间竞争研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第37卷
期数:
2022年第1期
页码:
47-52
栏目:
出版日期:
2022-01-31

文章信息/Info

Title:
 Intra-and Inter-specific Competition of Torreya yunnanensis Community
文章编号:
1001-7461(2022)01-0047-06
作者:
 于达勇1; 樊智丰1; 马长乐1; 2*; 李瞒瞒1
 （1.西南林业大学 园林园艺学院，云南 昆明 650224；2.国家林业和草原局 西南风景园林工程技术研究中心，云南 昆明 650233）
Author(s):
 YU Da-yong1; FAN Zhi-feng1; MA Chang-le1; 2*; LI Man-man1
 (1.School of Landscape Architecture and Horticulture,Southwest Forestry University,Kunming 650224,Yunnan,China; 2.Southwest Landscape Architecture Engineering Technology Research Center of National Forestry and Grassland Administration,Kunming 650233,Yunnan,China)
关键词:
 ; 云南榧树; 种间竞争; 种内竞争; 竞争强度
Keywords:
Torreya yunnanensis;  interspecific competition;  intraspecific competition;  competition intensity
分类号:
S791.53
DOI:
10.3969/j.issn.1001-7461.2022.01.07
文献标志码:
A
摘要:
 为探讨云南榧树竞争关系和动态规律，在其群落样地踏勘的基础上，采用Hegyi单木竞争模型对云南榧树种群的种内和种间竞争进行定量分析。结果表明，不同树种对云南榧树的种间竞争存在着差异，云南榧树受到种间竞争强度由大到小顺序为：川滇高山栎、胡桃、飞蛾槭、栗等。云南榧树的种内竞争强度与种间竞争强度的总和大致相同，种内和种间竞争强度均随着径级的增加而逐渐减小。对象木胸径与竞争强度之间服从幂函数关系CI=AD-B，胸径大于10 cm受到的竞争压力处于较低水平，且变化幅度不明显，利用该模型能很好地预测云南榧树种内和种间竞争强度。
Abstract:
Torreya yunnanensis is a second-class protected wild plant in China.In order to explore the competition relationship and dynamic rules of T.yunnanensis,based on the survey of the community plots,the intra-and inter-specific competitions of T.yunnanensis were quantitatively analyzed by using Hegyi single-tree competition model.The results showed that the inter-specific competition of different tree species to T.yunnanensis was different,the order of the intensity of inter-specific competition for T.yunnanensis wass Quercus guyavaefolia,Juglans regia,Acer oblongum,Castanea mollissima,etc.The intensity of intra-specific competition of T.yunnanensis was similar to that of inter-specific competition,the intra-and inter-specific competition intensity of T.yunnanensis decreased with the increase of the tree diameter.The relationship between the competition intensity and DBH of T.yunnanensis followed the power function (CI=AD-B).When the DBH was greater than 10 cm,the competitive pressure on T.yunnanensis was less and tended to stabilize.The model can be used to predict the intra-and inter-specific competition of T.yunnanensis.

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备注/Memo

备注/Memo:
 收稿日期：2021-01-08修回日期：2021-03-01
基金项目：国家自然科学基金（31360037）；云南省教育厅基金（2021Y260）。
第一作者：于达勇。研究方向：植物群落生态。E-mail:1933917523@qq.com
*通信作者：马长乐，博士生导师，教授。研究方向：风景园林。E-mail:machangle@sina.com
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