我国的草坪业起步较晚,对草坪草(特别是近些年来我国从国外引进的冷季型草坪草)的生物学特性和栽培技术还缺乏深入的研究,缺乏生产经验,在草皮生产和草坪的养护管理中,经常或过早地出现严重的退化、死亡现象。草坪使用数年达到草坪草的生长极限,草坪草开始老化衰亡是正常现象, China’s lawn industry started late, the turfgrass (especially in recent years our country imported from the cold season turfgrass) biological characteristics and cultivation techniques are still lack of in-depth research, lack of production experience in turf production and lawn Of the conservation and management, there are frequent or premature serious degradation, death phenomenon. Turfgrass used to reach the lawn grass growth limit for several years, turfgrass began aging decline is normal,