文献类型：期刊文献

中文题名：典型阔叶林的物种多样性分布和环境解释

英文题名：Distribution of species diversity and environmental interpretation of typical broadleaved forests

作者：刘晓[1] 丛静[1,2] 卢慧[1,3] 蒋军[4] 李广良[1] 宿秀江[5] 王秀磊[1] 李迪强[1] 张于光[1]

第一作者：刘晓

机构：[1]中国林业科学研究院森林生态环境与保护研究所,国家林业局森林生态环境重点实验室,北京100091;[2]中南大学资源加工与生物工程学院,长沙410083;[3]中央民族大学生命与环境科学学院,北京100081;[4]湖北神农架自然保护区管理局,神农架442421;[5]白云山国家级自然保护区管理局,保靖416503

年份：2016

卷号：0

期号：4

起止页码：125-133

中文期刊名：生态科学

外文期刊名：Ecological Science

收录：CSTPCD;;CSCD:【CSCD_E2015_2016】；

基金：中央公益型科研院所基本科研业务费专项资金项目(CAFRIFEEP201101);国家自然保护区生物标本资源共享子平台(2005DK21404)

语种：中文

中文关键词：阔叶林;物种多样性;环境因子;分布格局;形成机制

外文关键词：broadleaved forest; species diversity; environment factors; distribution pattern; forming mechanism

分类号：S718.51

摘要：生物多样性的分布格局和形成机制一直是生态学研究的核心内容之一。大量的研究表明,气候是影响物种分布的主要因素,但是对不同气候带内的形成机制关注较少。作者沿不同气候带选择了山西庞泉沟、山西历山、河南龙峪湾、湖北神农架以及湖南八大公山等五个国家级自然保护区的典型阔叶林植物群落为研究对象,分析了植物物种多样性的变化趋势及其与环境因子的关系。DCA分析结果表明:植物群落具有一定的区域性,从暖温带的山西庞泉沟保护区依次向南到亚热带的湖南八大公山保护区,植物物种多样性和丰富度均呈增加的趋势。CCA和Partial Mantel Test分析都表明,年均气温和年均降水量是影响不同气候带上植物分布的显著因子。此外,影响暖温带庞泉沟和历山植物分布的环境因子还包括土壤碱解氮和速效磷,影响亚热带神农架和八大公山的环境因子还包括土壤湿度、p H和土壤硫。因此,不同气候带上水热分配不均以及土壤养分存在的差异是影响不同区域植物物种多样性分布的主要因素。
The biogeographic distributions and their underlying mechanisms are major focuses in ecology. Although a large number of studies have shown that climate is the deterministic factor in shaping the biogeographic distributions, less attention has been paid to the species distribution mechanism in the same climatic zones. In this study, we selected broadleaved forests in five nature reserves, including Pangquangou（PQG） Natural Reserve and Lishan（LS） Natural Reserve in Shanxi Province, Longyuwan（LYW） Natural Reserve in Henan Province, Shennongjia（SNJ） Natural Reserve in Hubei Province and Badagongshan（BDGS） Natural Reserve in Hunan Province. The distribution patterns of plant species in these five sites were studied and the relationships between the species distribution and environmental factors were further analyzed. Detrended Correspondence Analysis（DCA） of the plant communities showed that the plant communities could be well separated from each other and exhibited certain regional distribution patterns. The diversity and richness of plant species were increased from PQG which located in the warm temperate zone to BDGS which located in subtropical zone. Both Canonical Correspondence Analysis（CCA） and Partial Mantel test were applied to analyze the relationships between the plant distribution and the environmental factors. Both of them suggested that the annual mean temperature and annual total precipitation were the most significant controlling factors in determining the distribution of plant communities at the inter-zone scale. Furthermore, these two methods also revealed the soil available nitrogen and the soil rapid available phosphorus were the key factors in shaping the distribution of plant communities in PQG and LS within climatic zones. The important controlling factors that affected the distribution of plant communities in SNJ and BDGS were soil moisture, soil pH and soil total sulfur. In conclusion, the uneven distributions of water, thermal energy and soil nutrients in different climatic zones are all the key factors in shaping plant distribution patterns.