山东龙口不同强度霜冻气候变化特征分析

Analysis on characteristics of frost climate change in Longkou,Shandong

利用龙口国家基准气候站1971—2016年地面气象观测资料以及当地特色果品(大樱桃、苹果等)霜冻害灾情调查资料,通过气候诊断、应用统计分析等方法,分析了龙口市近46年不同强度等级霜冻的初、终霜日期和无霜期的气候变化特征,以此为依据确定特色果树低温冻害等级指标,提高霜冻灾害的预测能力,有效防御霜冻灾害,优化果树种植结构,提高果品产量和质量。

Based on the ground meteorological observation data of Longkou national standard climate station from 1971 to 2016 and the investigation data of frost damage of local characteristic fruits(big cherry,apple,et al),the climate change characteristics of the first frost,last frost date and frost free period of different intensity grade frost in recent 46 years in Longkou city were analyzed by means of climate diagnosis and statistical analysis.On this basis,the grade index of low temperature freezing injury of characteristic fruit trees was determined.It can improve the prediction ability of frost disaster,effectively prevent frost disaster,optimize the planting structure of fruit tree,and increase the yield and quality of fruit.