摘要
为分析贵德地区梨树花期前各气象要素变化特征,利用1961—2019年青海省贵德县气象局观测的日平均气温稳定通过0℃至梨树开花前地面气象观测资料,对梨树开花前的气温、积温、降水、日照时数等气象因子变化趋势及变化特征进行分析。结果表明,贵德地区日平均气温稳定通过0℃至梨树开花前期间的平均气温呈显著升温趋势,平均最低气温、≥0℃的积温、降水量、日照时数均呈极显著增多趋势。突变分析表明,降水量、≥0℃积温、日照时数、平均气温、平均最低气温分别在1979、2004、2006、2008和2011年发生了增多突变。
In order to analyze all the changes of meteorological elements before the pear trees flowering period in the region of Guide,using the ground meteorological observation data of daily average temperature stability by 0℃before pear flowering period of the county bureau meteorology observation from 1961 to 2019 in Qinghai Province.The variation trends and characteristics of the meteorological factors such as temperature,accumulated temperature,precipitation and sunshine hours in front of the pear flowering period were studied in this paper.The results showed the average daily temperature of stable from 0℃to the period before the pear flowering period preformed uptrend in Guide region,and the average minimum temperature,accumulated temperature≥0℃,precipitation and sunshine hours were significantly increased.The mutation analysis indicated that precipitation,accumulated temperature≥0℃,sunshine hours,average temperature and average minimum temperature had increased abrupt changes in 1979,2004,2006,2008 and 2011,respectively.
作者
魏萍
WEI Ping(Meteorological Bureau of Guide County,Guide,Qinghai 811750)
出处
《安徽农业科学》
CAS
2019年第23期236-239,250,共5页
Journal of Anhui Agricultural Sciences
关键词
梨树
花期
气象要素
变化特征
黄河谷地
Pear tree
Flowering period
Meteorological factors
Change characteristics
Yellow River valley
