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雪为热的不良导体,其保温隔热作用早已为人们所熟知,国外在这方面已做了大量观测研究工作。梅尔在蒙他那观测指出空气温度变化时,厚20～40厘米雪层下的土温度变化微小。阿金孙及培尔指出冻结深度与雪
Snow is a poor conductor of heat, the role of thermal insulation has long been well known to foreign countries in this regard has done a lot of observation and research work. Mel’s temperature in the air at the time of his observation pointed out that there was only a small change in soil temperature under a 20-40 cm thick layer of snow. Akin Sun and Perr pointed out the depth of freezing with snow