摘要
利用1981—2020年德令哈、乌兰、都兰和格尔木4-9月的气温、降水、日照、风速、≥0℃积温及≥0℃积温日数次数,采用线性趋势法分析了柴达木盆地藜麦生长季各气象因子变化特征。结果表明:柴达木盆地藜麦生长季平均气温、降雨量、≥0℃积温及≥0℃积温日数数据呈上升趋势,并通过0.01的极显著性检验;日照时数、风速气候倾向率呈下降趋势,通过0.01的极显著性检验;20世纪90年代之前属偏冷期,90年代之后属偏暖期;21世纪00年代前属降水量偏少时期,之后属降水量偏多时期。分析结果对合理利用当地气候资源,促进盆地农业可持续发展具有一定的指导意义。
Based on the temperature,precipitation,sunshine,wind speed,accumulated temperature≥0℃and the number of accumulated temperature days≥0℃from April to September in Delingha,Ulan,Duran and Golmud from 1981 to 2020,the characteristics of meteorological factors during the growing season of Chenopodium quinoa in Qaidam Basin were analyzed by linear trend method.The results showed that the average temperature,rainfall,accumulated temperature≥0℃and accumulated temperature days≥0℃of Chenopodium quinoa during the growing season showed an increasing trend,and passed the extremely significant test of 0.01.Sunshine duration,wind speed and climate tendency rate showed a decreasing trend,passing the extremely significant test of 0.01.It was a cold period before 1990s,and a warm period after 1990s.Before the 21st century,it was a period of less precipitation and a period of more precipitation.The results of the analysis have certain guiding significance for the rational use of local climate resources and the promotion of sustainable agricultural development in Qaidam Basin.
作者
金卫东
李积芳
杨永乐
薛晓萍
许学莲
陈宏松
Jin Weidong;Li Jifang;Yang Yongle;Xue Xiaoping;Xu Xuelian;Chen Hongsong(Meteorological Bureau of Golmud City in Qinghai Province,Golmud 816099,China)
出处
《青海科技》
2024年第3期156-161,共6页
Qinghai Science and Technology
关键词
藜麦
生长季
气象因子
柴达木盆地
Chenopodium quinoa
Growing season
Meteorological factors
Qaidam Basin
