草地学报

草地学报 ›› 2017, Vol. 25 ›› Issue (1): 190-194.DOI: 10.11733/j.issn.1007-0435.2017.01.028

• 研究专报 • 上一篇    下一篇

青海海北3种典型高寒草甸植物群落特征研究

井向前1,2, 王瑞红1, 任德智1, 白玛玉珍1,2, 潘刚2, 周尧治1   

  1. 1. 高原生态研究所, 西藏 林芝 860000;
    2. 西藏大学农牧学院, 西藏 林芝 860000
  • 收稿日期:2015-06-08 修回日期:2016-06-09 出版日期:2017-02-15 发布日期:2017-05-06
  • 通讯作者: 周尧治,E-mail:zyzhn666@126.com
  • 作者简介:井向前(1986-),男,陕西延安人,硕士研究生,主要从事生态系统修复的研究,E-mail:jxq871112@163.com
  • 基金资助:

    西藏自治区自然科学基金（2015ZR-13-29）；国家科技支撑计划项目课题“西藏高原脆弱生态修复技术研究与示范”（2013BAC04B02）；国家科技支撑计划项目课题子专题“西藏高原典型脆弱生态系统健康评估技术研究”（2013BAC04B02-05）；国家自然基金项目（31160120）资助

Characteristics of Three Kinds of Typical Plant Communities of the Alpine Meadow in Haibei Region, Qinghai Province

JING Xiang-qian1,2, WANG Rui-hong1, REN De-zhi1, BAIMA Yu-zhen1,2, PAN Gang2, ZHOU Yao-zhi1   

  1. 1. Institute of Plateau Ecology, Linzhi, Tibet 860000, China;
    2. College of Agriculture and Animal Husbandry, Tibet University, Linzhi, Tibet 860000, China
  • Received:2015-06-08 Revised:2016-06-09 Online:2017-02-15 Published:2017-05-06

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摘要：

本文以青海海北门源县门源马场为例，探讨了3种类型高寒草甸植物群落特征和多样性。结果表明：矮嵩草（Kobresia humilis）、金露梅（Potentilla fruticosa）和门源嵩草（Kobresia menyuanica）3种高寒草甸植物群落均表现为复层结构；其多样性指数与均匀度指数关系密切；不同高寒草甸群落间共有物种较少，物种替代速率较高；矮嵩草高寒草甸地上生物量分别是金露梅高寒草甸和门源嵩草高寒草甸的1.62和1.69倍；地下生物量主要分布在0~10 cm的表层土壤中，垂直空间分布结构呈T字形；地上和地下生物量呈负相关关系。

关键词: 高寒草甸, 群落特征, 多样性, 地上生物量, 地下生物量

Abstract:

This paper took alpine meadow in stud-farm Menyuan County, Haibei region of Qinghai province as an example to determine the feature and plant diversity of three kinds of alpine meadow communities(Kobresia humilis, Potentilla fruticose and Kobresia menyuanica). Results showed that the three kinds of plant communities of the alpine meadows were shown as the complex structure; the relationship between the diversity index and the evenness index was close; there were fewer common species and higher species replacement rate among different alpine meadow communities; the aboveground biomass of Kobresia humilis alpine meadow was 1.62 and 1.69 times of Potentilla fruticosa and Kobresia menyuanica communities, respectively; the underground biomass was mainly distributed in the 0~10 cm soil layer, and the vertical spatial distribution structure was “T” type; the aboveground and underground biomass were negatively correlated.

Key words: Alpine meadow, Community characteristic, Diversity, Aboveground biomass, Underground biomass

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