曲阳县梨花期冻害分析及防御对策

Analysis and Counterme-asures on Freezing Injury of Pear in Flowering Period in Quyang County

利用曲阳国家一般气象站1990—2019年4月气象资料及同期梨树花期物候资料,根据不同等级梨树花期冻害预警指标进行年代际变化分析、花期冻害指数分析,提出合理有效的花期冻害防御对策。

Based on the meteorological data of Quyang national general meteorological station on April from 1990 to 2019 and the phenological data of pear flowering period in the same period,the paper analyzes the inter-year changes and the index of frost damage in flowering period according to the early warning indexes of different grades of pear trees in flower period,and puts forward reasonable and effective countermeasures for the prevention of frost damage in flowering period.