[1]刘映良,薛建辉*.贵州茂兰退化喀斯特森林群落的数量特征[J].南京林业大学学报(自然科学版),2005,29(03):023-27.[doi:10.3969/j.jssn.1000-2006.2005.03.006]
 LIU Ying-liang,XUE Jian-hui*.Quantitative Properties of Degraded Karst Forest Communities in Maolan Mountain Area of Guizhou[J].Journal of Nanjing Forestry University(Natural Science Edition),2005,29(03):023-27.[doi:10.3969/j.jssn.1000-2006.2005.03.006]
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贵州茂兰退化喀斯特森林群落的数量特征
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
29
期数:
2005年03期
页码:
023-27
栏目:
研究论文
出版日期:
2005-03-20

文章信息/Info

Title:
Quantitative Properties of Degraded Karst Forest Communities in Maolan Mountain Area of Guizhou
文章编号:
1000-2006(2005)03-0023-05
作者:
刘映良12薛建辉1*
1. 南京林业大学森林资源与环境学院, 江苏 南京 210037; 2. 贵州师范大学生物技术与工程学院, 贵州 贵阳 550001
Author(s):
LIU Ying-liang12 XUE Jian-hui2*
1. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China; 2. School of Biological Technology and Engineering Guizhou Normal University, Guiyang 550001, China
关键词:
退化喀斯特森林 群落数量特征 物种多样性 生物量 连续带指数
Keywords:
Degraded Karst forest Quantitative properties of community Species diversity Biomass Continuum index
分类号:
S718
DOI:
10.3969/j.jssn.1000-2006.2005.03.006
文献标志码:
A
摘要:
<正>采用RAPD分子标记技术对广西何首鸟野生种质资源进行遗传多样性分析。结果表明:40对随机引物用于PcR扩增,共得到295条扩增DNA片段,175个多态性片段,多态性达到59.3%,其中田林种源与西林种源之间的遗传变异最小,西林种源和灌阳种源之间遗传变异最大;根据RAPD标记划分10个何首乌野生种源得到5个品种群,这5个类型与地理分布有一定关系,地理位置较近的材料能聚在一起。分子标记可用于何首乌种质资源的分类、真伪鉴定及良种选育。
Abstract:
The quantitative characters of 30 community plots at different successional stages were studied. The main results showed: (1)Species richness and species diversity of shrubtree stages were higher than those of arbor-tree stages, the evenness of the former were gradually higher than those of the latter, but ecological dominance increased in natural restoration process; (2)Communities of degraded Karst forests have usually 1~2 dominant species; (3)Biomass accumulated gradually with the natural succession process. Meanwhile, the biomass components of different communities changed continually. The average herb layer biomass and shrub layer biomass of shrub forests were higher than those of arbor forests, respectively 5.4 and 3.5 times higher than those of arbor forests; (4)The community continuum index could be used to reflect the roles of different communities in succession stages.
更新日期/Last Update: 2013-05-20