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[1]张宇阳,马文宝,于涛,等.梓叶槭的种群结构和群落特征[J].应用与环境生物学报,2018,24(04):697-703.[doi:10.19675/j.cnki.1006-687x.2017.09040]
 ZHANG Yuyang,MA Wenbao**,YU Tao,et al.Population structure and community characteristics of Acer catalpifolium Rehd.[J].Chinese Journal of Applied & Environmental Biology,2018,24(04):697-703.[doi:10.19675/j.cnki.1006-687x.2017.09040]
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梓叶槭的种群结构和群落特征()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
24卷
期数:
2018年04期
页码:
697-703
栏目:
研究论文
出版日期:
2018-08-20

文章信息/Info

Title:
Population structure and community characteristics of Acer catalpifolium Rehd.
作者:
张宇阳马文宝于涛姬慧娟高健李俊清高尚柯蕾
1北京林业大学省部共建森林培育与保护教育部重点实验室 北京 100083 2 四川省林业科学研究院 成都 610081 3 大千生态环境集团股份有限公司 南京 210036
Author(s):
ZHANG Yuyang1 MA Wenbao2** YU Tao1 JI Huijuan2 GAO Jian1 LI Junqing1** GAO Shang3 & KE Lei1
1 Key Laboratory for Silviculture and Conservation of MOE, Beijing 100083, China 2 Sichuan Academy of Forestry, Chengdu 610081, China 3 Daqian Ecology & Environment Group Co., Ltd., Nanjing 210036, China
关键词:
梓叶槭极小种群野生植物群落特征多样性指数种群结构
Keywords:
Acer catalpifolium Rehd. plant species with extremely small population community characteristics diversity index population structure
分类号:
Q949.755.308
DOI:
10.19675/j.cnki.1006-687x.2017.09040
摘要:
梓叶槭(Acer catalpifolium Rehd.)是分布狭窄的极小种群野生植物. 为充分了解梓叶槭分布地种群现状和未来发展趋势以促进种群保护,对其5个分布点——财神庙(CSM)、般若寺(BRS)、张山村(ZSC)、伏虎寺(FHS)、报国寺(BGS)——进行群落调查,研究其种群结构及其生存群落的物种构成和群落特征. 结果表明,梓叶槭主要分布于常绿阔叶-落叶阔叶混交林中,不同样地的梓叶槭群落层次,即乔木层、灌木层以及草本层分别有伴生植物52种、74种和52种. 从梓叶槭的多度分配比例来看,BRS样地最大,为26.04%,随后依次是FHS、ZSC、BGS和CSM. 梓叶槭生存群落内,FHS、BRS、BGS和CSM样地的物种多样性指数均较高,但ZSC相对较低;在种群年龄结构的调查中发现,梓叶槭幼苗及幼树等级分布出现残缺,种群自然更新困难. 综上所述,梓叶槭生存群落内,不同生长层优势种占有较大的环境资源,是影响梓叶槭种子萌发、幼苗幼树生长和种群发展的主要障碍;本研究结果可为梓叶槭种群回归与复壮提供一定理论依据. (图2 表3 参31)
Abstract:
Acer catalpifolium Rehd., a critically endangered tree species with an extremely limited range of distribution, is one of the 120 plant species with extremely small populations, as approved by the state forestry administration of the People’s Republic of China and requires urgent rescue action. In order to comprehensively understand the population status and the future developmental trend of A. catalpifolium, the plant communities were investigated from 5 sites, including Caishenmiao (CSM), Banruosi (BRS), Zhangshancun (ZSC), Fuhusi (FHS), and Baoguosi (BGS). The population structure of A. catalpifolium as well as the species composition and community characteristics of its habitat were investigated. The results showed that A. catalpifolium is mainly distributed in the evergreen broad-leaved and deciduous broad-leaved mixed forests, in different community layers, namely, the tree layer, shrub layer, and herb layer, and is accompanied by 52, 74, and 52 plant species, respectively. Analyses of the distribution of population abundance revealed that BRS had the largest distribution of A. catalpifolium, accounting for 26.04% of the total population, followed by FHS, ZSC, BGS, and CSM, in that order. Analyses of the community characteristics revealed that the species diversity indices in FHS, BRS, BGS, and CSM were greater than that in ZSC. Analyses of the population age structure of A. catalpifolium revealed the gap in the distribution of the levels of seedlings and young trees. There were serious obstacles to the regeneration of the natural population. We concluded that the obstacle to the regeneration of the population of A. catalpifolium might be caused by the high competitive pressure from the dominant species and the micro-environment in the forest. Understanding the community characteristics and the population structure of A. catalpifolium could provide a theoretical foundation for its reintroduction and recovery.

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更新日期/Last Update: 2018-08-25