›› 2005, Vol. 13 ›› Issue (4): 278-281,312.DOI: 10.11733/j.issn.1007-0435.2005.04.004

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Effects of Mowing Treatment on the Growth and Specific Interaction Between Leymus chinensis and Kalimeris integrifolia in the Songnen Plains

BA Lei, WANG De-li, CAO Yong-hong   

  1. Institute of Grassland Science, Key Laboratory of Vegetation Ecology of Ministry of Education, Northeast Normal University, Changchun, Jilin Province, 130024, China
  • Received:2004-12-13 Revised:2005-04-07 Online:2005-11-15 Published:2005-11-15

刈割对羊草和全叶马兰生长与种间关系的影响

巴雷, 王德利, 曹勇宏   

  1. 东北师范大学草地科学研究所, 植被生态科学教育部重点实验室, 吉林, 长春, 130024
  • 通讯作者: 王德利, E-mail:wangd@nenu.edu.cn
  • 作者简介:巴雷(1977- ),女,辽宁人,博士研究生,主要从事植物种间关系研究,已发表论文7篇
  • 基金资助:
    国家自然科学基金项目(编号:30070545,30270251,30571318);新世纪人才支持计划项目(NCET-04-0313)

Abstract: The effects of mowing treatment on the growth and specific interaction between Leymus chinensis and Kalimeris integrifolia in the mixed community were explored on meadow steppes of the Songnen Plains.Experimental results showed that the relative growth rate(RGR)could be higher if the mowing intensity was heavier.Both species(after)mowing with stubble height of 4cm,8cm or 12cm varied significantly in their relative growth cates.Moreover,the(interaction)between L.chinensis and K.integrifolia was influenced greatly by the mowing,and even the direction of(interaction)were changed under more(intensive)interference.Mowing does greatly effect the growth of L.chinensis.

Key words: Leymus chinensis, Kalimeris integrifolia, Specific interaction, Mowing treatment, Relative growth rate, (Competitive)intensity

摘要: 研究刈割对羊草(Leymus chinensis)和全叶马兰(Kalimeris integrifolia)生长与种间关系的影响。结果表明:刈割强度越大,相对生长速率越大;留茬4.8和12cm之间差异显著;刈割改变植物间相互作用的方向,削弱种间关系在群落中的重要性;刈割对羊草生长的影响较大。

关键词: 羊草, 全叶马兰, 种间关系, 刈割, 相对生长速率, 竞争强度

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