山西北部仁（肉）用杏花期冻害发生规律研究

利用大同市阳高县气象局1972-2012年4-5月气象资料及2001-2012年杏树花期物候资料,采用气象统计和灾害调查相结合的方法,根据不同等级杏树花期冻害的指标、花期冻害指数进行年代际变化分析.结果表明：花期冻害日数、幼果期冻害日数均呈逐渐减少的趋势,冻害指数也呈下降趋势.近年来,花期冻害突出表现在对始花期的冻害几率大,盛花期出现重度冻害的几率很少,而幼果期出现重度冻害的频次虽少,但一旦出现冻害,大多数为重度冻害.通过此研究,旨在为仁（肉）用杏生产适应气候变化、提高仁（肉）用的品质和产量提供科学依据,同时为仁（肉）用杏防灾减灾、趋利避害提供参考.

Study on Frost Damage of Almond (Meat)-Apricot in Apricot Blossom Period in Northern Shanxi Province

Using Yanggao County, Datong City Meteorological Bureau from 1972 to 2012 4-5 monthly meteorological data and from 2001 to 2012 in apricot and flowering phenology data, using methods of meteorological statistics and disaster survey combined, according to the early warning index, different grades of apricot florescence freezing injury of florescence freezing injury index to analyze the decadal change. The results showed that： the florescence frost days, fruit period of frost days showed a decreasing trend, freezing injury index declined. In recent years, florescence freezing injury manifested in the effects on flowering, flowering probability of severe damage was rare, and young fruit period of severe freezing injury frequency was small, but once the freeze injury, most severe frost. Through this research, aiming at the kernel （meat） apricot production to adapt to climate change, provide scientific basis for quality and yield, apricot disaster prevention and mitigation, draw on the advantages and avoid disadvantages to provide reference.