[1]冯立新,陈荣,朱昌叁,等. 桂西北红椿种群年龄结构与空间分布格局研究[J].西北林学院学报,2015,30(01):46-50.[doi:doi:10.3969/j.issn.1001-7461.2015.01.08]
　FENG Li-xin,CHEN Rong,ZHU Chang-san,et al. Age Structure and Spatial Distribution Pattern of Toona ciliate Population in Northwestern Guangxi[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2015,30(01):46-50.[doi:doi:10.3969/j.issn.1001-7461.2015.01.08]
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 桂西北红椿种群年龄结构与空间分布格局研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第30卷
期数:
2015年01期
页码:
46-50
栏目:
出版日期:
2015-01-31

文章信息/Info

Title:
 Age Structure and Spatial Distribution Pattern of Toona ciliate Population in Northwestern Guangxi
文章编号:
1001-7461(2015)01-0046-05
作者:
 冯立新1;  陈荣1;  朱昌叁1;  杨善云1;  廖英汉1;  买凯乐1*;  苏付保1; 岑建余2;  杨顺华3;  罗世安3
 （1.广西生态工程职业技术学院 广西珍贵乡土树种良种培育中心,广西 柳州 545004；2.广西西林县古障林场,广西 百色 533505；3.广西隆林县林业局,广西 百色 533500）
Author(s):
 FENG Li-xin1;  CHEN Rong1;  ZHU Chang-san1;  YANG Shan-yun1;  LIAO Ying-han1; MAI Kai-le1*;  SU Fu-bao1;  CEN Jian-yu2;  YANG Shun-hua3;  LUO Shi-an3
 (1.Guangxi Eco-Engineering Vocational and Technical College, Guangxi Rare Indigenous Trees Propagation Center, Liuzhou, Guangxi 545004, China; 2. Guzhang Forest Farm, Baise, Guangxi 533505, China; 3. Longlin Forestry Bureau, Baise, Guangxi 533505, China)
关键词:
 ; 桂西北; 红椿; 龄级; 尺度; 空间分布格局
Keywords:
 ; northwest Guangxi;  Toona ciliate;  age grade;  scale;  spatial distribution pattern
分类号:
S791.49
DOI:
doi:10.3969/j.issn.1001-7461.2015.01.08
文献标志码:
A
摘要:
 红椿是我国濒危保护物种，针对红椿天然林在广西的分布及种群分布特点，在桂西北红椿分布集中区域设置了9个20 m×20 m的调查样地，采用离散分布理论拟合方法，对该地红椿不同生长发育阶段种群年龄结构和空间分布格局进行分析。结果表明，桂西北红椿种群个体主要集中在Ⅳ、Ⅴ和Ⅶ龄级，而幼龄树（Ⅰ和Ⅱ级）较少或者没有，表明桂西北红椿种群更新比较困难。桂西北红椿在5 m×5 m、5 m×10 m、10 m×10 m的取样面积上，低龄级呈现均匀分布，高龄级呈现聚集分布，并随着取样面积的增大，呈均匀分布的龄级逐渐增加。
Abstract:
Toona ciliate is a nationally endangered and protected species in China. Based on the distribution characteristics of T. ciliate population, 9 sampling plots, designed as 20 m by 20 m were established in the concentrated distribution area in northwestern Guangxi to study the age structure and spatial distribution pattern by using discrete distribution theory. The results showed that most of individuals concentrated in size class Ⅳ, Ⅴ and Ⅶ, relative few or none individuals appeared in size class Ⅰ and Ⅱ, indicating that the regeneration of T. ciliate was difficult. At the different sampling areas, such as 5 m×5 m, 5 m×10 m, 10 m×10 m, T. ciliate performed the pattern of uniform distribution in size class Ⅰ and Ⅱ, performed the pattern of aggregated distribution in size class of Ⅳ, Ⅴ, and Ⅶ, the size class increased in the pattern of uniform distribution along with the increase of the sampling plot area.

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备注/Memo

备注/Memo:
 收稿日期：2014-04-07 修回日期：2014-05-16
基金项目：广西教育厅项目（201203YB202）；广西生态工程职业技术学院项目（201106A、201105A）； 广西高校科学技术研究项目（2013LX199）。
作者简介：冯立新，男，硕士，研究方向：森林培育、林业经济管理。E-mail: xiaoxin04010215@126.com
*通信作者：买凯乐，女，博士；研究方向：森林培育、景观生态。E-mail: maikaile32@163.com
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