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低温是我国北方地区绿地草坪所面临的主要胁迫。对冷季型草坪草而言,其生长的最适温度范围为15℃—25℃,而所能忍耐的最低温度,因草种的不同而有所差异,大多数冷季型草坪草能够忍受-25℃的低温而不致受害。对于草坪草来讲,土壤温度对草坪根系生长的影响远大于大气温度,同时土壤温度的变化速度也远远慢于大气温度,因此,冬季低温来临后,草坪植物地上部分生长已变得极其微弱或基本停止生长,而其根系生长仍然在继续,这一点对于草坪草越冬管理尤为重要。根系储存的碳水化合物是维持草坪冬季生命活动的主要
Low temperature is the main stress facing green lawn in northern China. For cold-season turfgrass, its optimum temperature range for growth is 15 ° C-25 ° C, and the minimum temperature that can be tolerated varies with the grass species, and most cold-season turf grasses tolerate -25 ℃ low temperature without damage. For turfgrasses, the effects of soil temperature on the growth of turfgrass are much greater than the atmospheric temperature, and the change of soil temperature is much slower than the atmospheric temperature. Therefore, the growth of turfgrass plants has become extremely weak after the cold temperature in winter Or basically stop growing, and its root growth is still continuing, and this is particularly important for winter turfgrass management. Root storage of carbohydrates is to maintain lawn winter life activities of the main