摘要
本文探索了湟源县30年0℃活动积温的变化特征,一是对年际变化特征、高积温年、低积温年进行特征分析;二是将湟源县1987-2016年的0℃活动积温划分为3个10年际进行分析。详细分析内容为不同尺度下的积温最高值、最低值、平均值、极差和距平差。结果表明,30年0℃活动积温整体呈上升趋势,前期11年(1987-1997年)积温均为负距平;中期8年(1998-2005年)积温小幅震荡,后期11年(2006-2016年)积温均为正距平。30年的0℃活动积温平均值为2209.49℃·d,1987年0℃活动积温为最低值1 953.00℃·d;2013年0℃活动积温为最高值2 496.40℃·d。
This paper explored the variable characteristics of 0℃active accumulated temperature of 30 years in Huangyuan County.The first was the analysis of annual variation characteristics of 0℃active accumulated temperature,high accumulated temperature year and low accumulated temperature year.The second was the analysis of three 10-year periods of 0℃active accumulated temperature in Huangyuan County from 1987 to 2016.The maximum value,minimum value,average value,range and anomaly of accumulated temperature at different scales were analyzed in detail.The results showed that active accumulated temperature was generally increasing in the 30 years.The accumulated temperature in the first 11 years(1987-1997)was negative anomaly;the accumulated temperature in the middle 8 years(1998-2005)fluctuated slightly,and the accumulated temperature in the later 11 years(2006-2016)was positive anomaly.The average temperature of the 0℃active accumulated temperature in 30 years was 2209.49℃·d;the 0℃active accumulated temperature in 1987 was the lowest(1953.00℃·d)and the 0℃active accumulated temperature in 2013 was the highest(2496.40℃·d).
作者
黄晨
洪震坤
张世栋
HUANG Chen;HONG Zhen-kun;ZHANG Shi-dong(Huangyuan County Meteorological Bureau of Xining City in Qinghai Province,Huangyuan Qinghai 812100;Chengduo County Meteorological Bureau)
出处
《现代农业科技》
2020年第4期191-193,共3页
Modern Agricultural Science and Technology
