成都地区蓝莓花期高低温灾害时空分布特征及专项气象服务  

The Spatiotemporal Distri-bution Characteristics and Special Meteorological Services of High and Low Temperature Disasters during Blueberry Flowering in Chengdu Region

作　　者：李昭霞 Li Zhao-xia(Shuangliu District Meteo-rological Bureau,Chengdu,Sichuan 610000)

机构地区：[1]成都市双流区气象局,四川成都610000

出　　处：《农业灾害研究》2023年第10期175-177,共3页Journal of Agricultural Catastrophology

摘　　要：利用成都地区14个气象观测站1961—2020年逐日最低气温、最高气温、日照时数,应用气候倾向率、灾害指数、灾害发生频率方法并结合气象灾害指标,统计分析了该地区蓝莓主要物候期气象灾害时空分布特征。结果表明:(1)成都地区蓝莓花期受害低温为2.7~4.2℃,1961—2020年4个站点未通过0.05的显著性检验,其余测站的气候倾向率范围在0.13~0.32,最大值0.32在新都区和金堂县,分析表明有明显受害低温有变暖趋势,同时低温灾害指数发现低温灾害趋于减轻。(2)成都地区蓝莓花期受害高温为16.7~19.1℃,1961—2020年仅有1个站未通过0.05的显著性检验,测站的气候倾向率范围为0.30~0.56,最大值0.56在龙泉驿区,高温灾害指数表明高温灾害趋于加重。Using 14 meteorological observation stations in Chengdu from 1961 to 2020,the daily minimum temperature,maximum temperature,and sunshine hours were used to statistically analyze the spatiotemporal distribution characteristics of meteorological disasters in the main phenological periods of blueberries in the region,using methods such as climate tendency rate,disaster index,disaster frequency,and meteorological disaster indicators.The results showed that:(1)During the flowering period of blueberries in the Chengdu region,the affected low temperatures were 2.7~4.2℃.From 1961 to 2020,four stations did not pass the significance test of 0.05,while the climate tendency rates of the other stations ranged from 0.13 to 0.32,with the maximum value of 0.32 in Xindu District and Jintang County.Analysis showed that there was a significant warming trend of affected low temperatures.At the same time,the low-temperature disaster index showed that the low-temperature disaster tended to be reduced.(2)During the flowering period of blueberries in the Chengdu region,the high temperature was 16.7~19.1℃.From 1961 to 2020,only one station failed the significance test of 0.05,and the climate tendency rate of the measuring station ranged from 0.30 to 0.56,with the maximum value of 0.56 in Longquanyi District.The high temperature disaster index indicates that the high temperature disaster was tending to worsen.

关 键 词：蓝莓花期 高温灾害 低温灾害 时空分布 

分 类 号：P429[天文地球—大气科学及气象学]