【摘要】 对 3种暖地型草坪返青期生物学特性进行了调查 ,结果表明 :4月中旬 ,草坪的高度 ,分蘖数 ,地上、地下生物量变化显著 ;在通常情况下返青期的根系活力 ,叶绿素含量与地温、气温呈正相关 ,若遇到不良的外界环境 (如干旱 ) ,则两者之间呈负相关 ;在干旱情况下 ,草坪的抗旱性比较 ,狗牙根抗旱性最强 ,马尼拉次之 ,马蹄金最差。更多还原

【Abstract】 The biological characteristics of returning green stages of three kinds of warm turf grass were observed and studied. It showed that the height, tiller density and biomass changed remarkably in the middle of April, and the content of chlorophyll of returning grass stages was in positive relation to underground temperature and air temperature, however if generally with adverse outside environment, they were interrelated. Under the drought circumstances, the best drought-resistant lawn was the second Zoysia and the last, Dichondra.更多还原