【摘要】 根据2000—2009年的气象资料,对比分析了和静县产生果树冻害的气候原因。结果表明:强降雪降温提前、持续低温、深厚的积雪、地温偏高、秋冬气温变化幅度大是发生果树冻害的重要原因。从灾情资料可知,果树冻害在20世纪60年代至90年代出现的次数不多,但2000年以后出现的次数增多。更多还原

【Abstract】 Based on the meteorological data from 2000 to 2009 in Hejing,the climatic reasons of fruit freezing injury were contrasted and analyzed by statistic method.The results indicated that intense snowfall and temperature decreasing in advance,durative low temperature,deep snow cover,high ground temperature as well as the large range of day temperature change in autumn and winter were the main reasons for fruit freezing injury.The data of disasters showed that fruit freezing injury occured less from 1960s to 1990s,but occured frequently after 2000.The paper analyzed the climate reason for fruit freezing injury,seeked some advantaged weather index to forecast freezing injury,and brought forward some advice for the fruit disaster prevention in the future.更多还原