中国科学院植物科学数据中心>> 植被生态 >> 数据集
中国长芒草群系的群落
Community structure of Miscanthus elongatus formation in China
乔鲜果 郭 柯等(中国科学院植物研究所)
发布时间:2022/5/28 8:34:00
摘要
长芒草(Stipa bungeana)群系是欧亚大陆草原区东南部的主要针茅草原类型之一, 中国特有群系类型, 以黄土高原及其周边为集中分布区。由于农业开垦等人为活动, 其天然植被保存不多, 现有分布破碎化严重或处于不稳定的演替阶段。该文利用2013–2019年在全国范围内调查的108个样地的数据, 对长芒草群系的地理分布、物种组成、生态特征和群落分类做了详细的描述和研究。结果表明: 长芒草群系在陕北、宁南、陇东、陇中、晋北、阴山南部黄土丘陵和鄂尔多斯高原的分布较为集中, 通常发育在黄绵土或栗钙土上, 海拔高度在(1) 631–3174 (4 098) m之间。108个样地内共记录到种子植物37科109属214种, 大多为偶见种或稀有种, 生活型组成以地面芽植物或多年生杂类草居多, 水分生态类型以旱生, 尤其是中旱生和典型旱生植物居多, 区系地理成分以东亚成分、东古北极成分和亚洲中部成分较多。群落的高度、盖度、生物量及物种丰富度变化幅度均较大, 这些与生境的湿润程度和干扰状况密切关联。长芒草群系划分为7个群丛组, 37个群丛。
The Stipa bungeana alliance is one of the main steppe types in Eurasian. Endemic to China, the alliance is mainly found in the Loess Plateau and the adjacent areas, but its range of distribution has been noted to decline and become highly fragmented due to conversion to cropland or at unstable successional stages. In this study, we described and analyzed the eco-geographical distribution, community characteristics, and vegetation classification of S. bugneana alliance based on data from 108 plots surveyed during 2013–2019. Results show that S. bungeana alliance is currently distributed in northern Shaanxi, southern Ningxia, eastern and central Gansu, northern Shanxi, the loess hills in the south of Yinshan Mountains and the Erdos Plateau. This alliance occurs mainly on loess soils or kastanozems, along elevation ranging from (1) 631 to 3 174 (4 098) m. Two hundred and fourteen plant species from 37 families and 109 genera were recorded across the 108 plots, with most of them being rare species in the alliance. There are more hemicryptophytes and perennial forbs than other life forms. Xerophytes, especially meso-xerophytes and typical xerophytes, have higher representation in species richness than mesophytes. Among the 10 geographical floristic elements, the East Asia element, the East Palearctic element and the central Asia element were the three dominants. The height, cover, biomass and species richness vary greatly across the plots because those variables are highly related to the moisture and disturbance intensity of the habitats. Based on China Vegetation Classification System, S. bugneana alliance could be classified into seven association groups and 37 associations.
关键词
长芒草; 黄土高原; 物种组成; 生活型谱; 植被分类
数据引用
必引文献:
数据引用: 数据来源于:中国长芒草群系的群落,乔鲜果 郭 柯等(中国科学院植物研究所), 2021, 中国科学院植物科学数据中心, DOI:10.17521/cjpe.2020.0150

Normative references:Community structure of Miscanthus elongatus formation in China, 2021, Plant Data Center of Chinese Academy of Sciences, DOI:10.17521/cjpe.2020.0150
数据使用条款
为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力,请数据使用者在使用数据所产生的研究成果中(包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果),明确注明数据来源和数据作者。对于转载(二次或多次发布)的数据,作者还须注明原始数据来源。
中文致谢方式:
  感谢中国科学院植物科学数据中心(Plant Data Center of Chinese Academy of Sciences, https://www.plantplus.cn) 提供数据支撑。
To respect the intellectual property rights, protect the rights of data authors, expand services of the data center, and evaluate the application potential of data, data users should clearly indicate the source of the data and the author of the data in the research results generated by using the data (including published papers, articles, data products, and unpublished research reports, data products and other results). For re-posting (second or multiple releases) data, the author must also indicate the source of the original data.
Acknowledgements:
  Acknowledgement for the data support from Plant Data Center of Chinese Academy of Sciences (https://www.plantplus.cn).
数据服务
浏览量: 488,下载量: 241
元数据:
地理范围
东经E:75.591322-135.345742
北纬N:17.542743-53.809235
空间分辨率:1km
数据提供者
数据提供机构:中国科学院植物研究所
数据提供者:乔鲜果 郭 柯等
联系人:郭柯
电子邮箱:guoke@ibcas.ac.cn