天津蓟州山楂树主要物候期气象条件分析

Analysis on Meteorological Conditions of Hawthorn Tree in Jizhou District in Tianjin City

利用天津蓟州1957—2018年逐日日平均气温、最高气温、最低气温、降水量,采用五日滑动平均法气候倾向率法分析了天津蓟州山楂树的主要物候期气象条件。结果表明:①天津蓟州山楂树萌芽期、展叶期初日随时间变化通过了0.05的显著性检验,气候倾向率分别为-1.7d/10a、-1.6d/10a。②天津蓟州山楂树萌芽期、展叶期、开花期、果实发育期的平均日最低气温分别为-5.4—1.2℃、-1.9—3.7℃、3.4—10.2℃、1.8—9.8℃,平均日最高气温分别为13.7—21.7℃、25.7—30.2℃、26.8—31.1℃、34.6—40.6℃,平均降水量分别为0.00—7.90mm、19.58—68.88mm、1.10—20.42mm、406.62—725.54mm。

By daily maximum temperature,minimum temperature and precipitation of a meteorological station from 1957 to 2018 and hourly temperature,precipitation data of 43 automatic stations,the meteorological conditions of hawthorn were analyzed by use of five-day sliding average method,climate tendency rate and kriging spatial interpolation method in Jizhou,Tianjin.The results showed:①The time change of germination,leaf-expansion period were tested by the significance test of 0.05 and the climate tendency rate were-1.7d/10a,-1.6d/10a.②The average temperature during germination,leaf extension,flowering and fruit development period were-5.4—1.2℃,-1.9—3.7℃,3.4—10.2℃,1.8—9.8℃,the average daily maximum temperature were 13.7—21.7℃,25.7—30.2℃,26.8—31.1℃,34.6—40.6℃,the average precipitation were 0.00—7.90mm,19.58—68.88mm,1.10—20.42mm,406.62—725.54mm.