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Turfgrass Winterkill Observations from the Great Lakes Region

机译:大湖区草皮草Winterkill观测

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摘要

THE RECORD-BREAKING winter of 2013-2014 will be remembered for many years to come. The first significant event was the ice storm of 21-22 Dec. that knocked out electrical power for thousands across a large swath of the lower peninsula of Michigan andcovered everything, included exposed turf (Fig. 1), with a uniform coating of ice. Most turf areas were covered with snow before the icing event and as the rain percolated through the snow it formed a porous, crusty ice-snow layer. This type of ice-snowlayer is usually not a concern for turfgrass as it is porous and allows for gas exchange from the turf-soil interface to the atmosphere.
机译:2013-2014年破纪录的冬天将被铭记很多年。第一个重大事件是12月21日至22日的冰暴,这场冰暴在密歇根州下半岛的一大片大地上切断了成千上万的电力,覆盖了包括裸露草皮(图1)在内的所有物体,并覆盖了均匀的冰层。在结冰事件发生之前,大多数草皮地区都被积雪覆盖,随着雨水渗入积雪,它形成了一个多孔的硬壳冰雪层。这种类型的冰雪层通常不关心草皮草,因为它是多孔的,并允许从草皮-土壤界面到大气的气体交换。

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