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在克拉玛依市乌尔禾区,于2006～2007年冬季,采用不同覆盖材料,进行了黑塑料布、双膜彩条布、单膜彩条布和紧贴式双层塑料布覆盖下的最低温度和温差的逐日观测,以减轻果树越冬掩埋的劳动强度。结果表明:最低气温平均值是黑塑料布-5.9℃,双膜彩条布-7.3℃,单膜彩条布-9.3℃,紧贴式双层-6.6℃,裸露的气温-17.9℃。温差平均值是黑塑料布-2.8℃,双膜彩条布-2.6℃,单膜彩条布-4.8℃,紧贴式双层-3.7℃,裸露的气温-10.0℃。试验表明,黑塑料布的保温效果好,温差也小。单膜彩条布的保温效果最差,温差也最大,有转暖乍冷的不良影响。紧贴式双层塑料布的保温效果因为与单层黑塑料布相同,并且多浪费一层覆盖材料和多费工时而被否定。
In Urho district of Karamay city, in the winter of 2006 ~ 2007, using different covering materials, the lowest temperature under the coverage of black plastic cloth, double color film cloth, single color color cloth cloth and close double layer plastic cloth And temperature difference between the daily observation to reduce the labor intensity of fruit trees buried in the winter. The results showed that the average minimum air temperature was -5.9 ℃ for black plastic cloth, 7.2 ℃ for double film color stripe cloth, -9.3 ℃ for single film color stripe cloth, -6.6 ℃ for close double layer and bare temperature of -17.9 ℃. The average temperature difference is black plastic cloth -2.8 ℃, double film color bar cloth -2.6 ℃, single color bar cloth -4.8 ℃, close to the double -3.7 ℃, exposed temperature -10.0 ℃. Experiments show that the insulation effect of black plastic cloth is good, the temperature difference is also small. Single film color cloth insulation effect of the worst, the temperature difference is also the largest, there is the cold turn cold adverse effects. Cling-on double-layer plastic sheeting insulation effect because of the same black single-layer plastic sheeting, and more waste of a layer of cover material and more time was negated.