Acta Agrestia Sinica

Acta Agrestia Sinica ›› 2018, Vol. 26 ›› Issue (6): 1516-1519.DOI: 10.11733/j.issn.1007-0435.2018.06.033

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Response of Plant Species Diversity and Aboveground Biomass and Their Relationship in Stipa baicalensis Grassland to Mowing

GUO Ming-ying1, WEI Zhi-jun2, WU Yan-ling3, YAN Rui-rui4, WU Renqiqige5   

  1. 1. Hulunber Grassland Station, Hulunbuir, Inner Mongolia 021008, China;
    2. College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010019, China;
    3. College of Life Science and Technology, Inner Mongolia Normal University, Hohhot, Inner Mongolia 010022, China;
    4. National Field Observation Station of Hulunbuir Grassland Ecosystem/Key Laboratory of Resource Remote Sensing and Digital Agriculture, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
    5. Life Science and Chemistry School, Hulunbuir College, Hulunbuir, Inner Mongolia 021008, China
  • Received:2018-03-12 Revised:2018-09-28 Online:2018-12-15 Published:2019-01-28

贝加尔针茅草原植物多样性与地上生物量及其关系对刈割的响应

郭明英1, 卫智军2, 吴艳玲3, 闫瑞瑞4, 乌仁其其格5   

  1. 1. 呼伦贝尔市草原工作站, 内蒙古 呼伦贝尔 021008;
    2. 内蒙古农业大学草原与资源环境学院, 内蒙古 呼和浩特 010019;
    3. 内蒙古师范大学生命科学与技术学院, 内蒙古 呼和浩特 010022;
    4. 呼伦贝尔草原生态系统国家野外科学观测研究站/农业部资源遥感与数字农业重点开放实验室/中国农业科学院农业资源与农业区划研究所, 北京 100081;
    5. 呼伦贝尔学院生命科学与化学学院, 内蒙古 呼伦贝尔 021008
  • 通讯作者: 卫智军
  • 作者简介:郭明英(1982-),女,黑龙江北安人,硕士,助理研究员,主要从事草地资源研究、生态与管理研究,E-mail:guomingying163@163.com
  • 基金资助:
    国家重点研发计划“北方草甸退化草地治理技术与示范”（2016YFC0500603）；内蒙古农业大学“草地资源教育部重点实验室”资助

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Abstract: The effect of mowing on plant community diversity,aboveground biomass and their relationship in Stipa baicalensis grassland of Hulunbuir was studied. The result showed that mowing time had significant effect on the dominance and evenness index of plant,but stubble height had no significant effect on plant diversity index. The aboveground biomass significantly reduced with the increase of stubble height,which was no difference among cutting times. Plant diversity and aboveground biomass showed a significant positive correlation.

Key words: Stipa baicalensis meadow steppe, Mowing, Plant diversity, Aboveground biomass

摘要： 本研究以呼伦贝尔贝加尔针茅割草地为研究对象，探讨刈割干扰对植物群落多样性和地上生物量及其关系的影响。结果表明：刈割时间对植物的优势度和均匀度指数有显著影响，留茬高度对植物多样性影响不显著。随着留茬高度的增加，地上生物量显著下降；刈割时间对群落地上生物量影响不明显。植物多样性和地上生物量呈显著正相关关系。

关键词: 贝加尔针茅草甸草原, 刈割, 植物多样性, 地上生物量

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