新疆天山北坡中部葡萄安全越冬防寒材料研究

以单层白膜(普通地膜)、单层黑膜、单层草帘和双层膜(白膜加黑膜)为试材,模拟冬季有积雪覆盖和没有积雪覆盖2种气候状况,分析不同覆盖材料对冬季葡萄根系40 cm地温变化的影响.结果表明:4种覆盖材料保温性能都比较稳定,保温效果最好的是有积雪覆盖的单层草帘,在冬季3个月内40 cm地温始终处于最高,最低温度不低于-1.5℃.无积雪覆盖单层白膜、无积雪覆盖单层黑膜保温效果相对较弱,在3个月内40 cm地温不低于-4.5℃.积雪覆盖单层白膜保温效果仅次于积雪覆盖单层草帘,在3个月内40 cm地温不低于-3.5℃.

Research on the Overwintering Winter Protection Materials of Grapes in the North-piedmont of Tianshan Mountains in Xinjiang

Four cover material of single layer white film(ordinary film)single layer black film and double layer mat,double layer film(white film and black film)were used as test materials,imitate two kinds of weather conditions of winter snow cover and no snow cover,effect of different cover material on ground temperature changes of winter grape roots in 40 cm were analyzed.The results showed that the heat preservation properties of four types of covering materials were relatively stable;Heat preservation effect of snow cover single straw mat was the best taeatment,in the three months before the temperature was always in the highest ground temperature,minimum temperature of not less than the-1.5℃.Without snow cover single layer white film,without snow cover single layer black film heat preservation effect was relatively weak,but in the three months in 40 cm ground temperature not less than the-4.5℃.The heat preservation effect of snow cover single layer white film only second to snow cover single straw mat,in the three months in 40 cm ground temperature not less than the-3.5℃.