【摘要】 研究刈割对羊草(L eym us ch inensis)和全叶马兰(K a lim eris integ rif olia)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12 cm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。更多还原

【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.更多还原