[1]夏小梅,王娟,彭培好,等.大渡河干旱河谷四川牡丹种群结构特征及与环境因子的关系[J].浙江林业科技,2017,37(02):30-35.[doi:10.3969/j.issn.1001-3776.2017.02.005]
 XIA Xiao-mei,WANG Juan,PENG Pei-hao,et al.Relationship of Population Structure of Paeonia szechuanica with EnvironmentalFactors in Sichuan Province[J].Journal of Zhejiang Forestry Science and Technology,2017,37(02):30-35.[doi:10.3969/j.issn.1001-3776.2017.02.005]
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大渡河干旱河谷四川牡丹种群结构特征及与环境因子的关系()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
37
期数:
2017年02期
页码:
30-35
栏目:
出版日期:
2017-06-30

文章信息/Info

Title:
Relationship of Population Structure of Paeonia szechuanica with EnvironmentalFactors in Sichuan Province
作者:
夏小梅王娟彭培好刘贤安
成都理工大学 生态资源与景观研究所,四川 成都 610059
Author(s):
XIA Xiao-meiWANG JuanPENG Pei-haoLIU Xian-an
Institute of Ecological Resources and Landscape, Chengdu University of Technology, Chengdu 610059, China
关键词:
大渡河干旱河谷四川牡丹种群结构特征环境因子主成分分析
Keywords:
dry valley of Dadu River Paeonia szechuanica population structure environment factors principal component analysis
分类号:
S718.54
DOI:
10.3969/j.issn.1001-3776.2017.02.005
文献标志码:
A
摘要:
2014 年对四川省阿坝州四川牡丹分布较为集中的地方设置19 个样方进行调查,根据其数据编制静态生命表,采用主成分分析等方法对大渡河干旱河谷四川牡丹种群结构、种群特征与环境因子的关系进行研究。结果表明,不同生境的四川牡丹种群年龄级分布存在一定差异,在以灌木为优势种的群落生境中,由于郁闭度低、透光率高,四川牡丹幼苗数量多,种群的更新状态较好,属于增长型或稳定型种群;在以乔木为优势种的群落生境中,四川牡丹幼苗死亡率高,种群属于衰退型;主成分分析表明,四川牡丹平均基径和种群密度受环境因子影响显著,其中坡度是影响四川牡丹种群特征的首要环境因子,其次是土壤自然含水率。
Abstract:
Investigations were implemented in 2014 on 19 samples plots of Paeonia szechuanica communities relatively more distributed in Aba,Sichuan province. Static life table was compiled based on survey data. Relationship of population structure and properties with environmental factorswas analyzed by principal component analysis. The results showed that age class distribution of P. szechuanica population had difference amongdifferent sample plots. At habitats dominated by bush species, P. szechuanica had more seedlings, indicating better regeneration and belonging tostable and growing population. At habitats dominated by tree species, P. szechuanica had higher death rate of seedlings, indicating decliningpopulation. Principal component analysis showed that the average ground diameter and population density of P. szechuanica was significantlyaffected by environmental factors, especially slope and soil moisture content.

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备注/Memo

备注/Memo:
收稿日期:2016-09-23;修回日期:2017-03-09
基金项目:阿坝州重点保护野生植物资源调查(80303-SZA001)
作者简介:夏小梅,硕士研究生,从事植物生态研究;E-mail:905878484@qq.com。通信作者:彭培好,博士生导师,从事植物生态研究;E-mail:peihaop@163.com。
更新日期/Last Update: 2017-04-20