1961—2023年青海湖南部地区热量资源变化特征分析  

Analysis of Change Characteristics of Thermal Resources in the South of Qinghai Lake During 1961-2023

作　　者：桑多香 刘文兵 张海春[1] SANG Duo-xiang;LIU Wen-bing;ZHANG Hai-chun(Meteorological Bureau in Hainan Prefecture of Qinghai Province,Gonghe,Qinghai 813099)

机构地区：[1]青海省海南州气象局,青海共和813099

出　　处：《安徽农业科学》2024年第24期188-192,共5页Journal of Anhui Agricultural Sciences

摘　　要：[目的]分析青海湖南部地区热量资源变化特征。[方法]利用1961—2023年青海湖南部共和县的逐日平均气温,采用线性趋势、滑动平均、Mann-Kendall突变检验法等数理统计方法探讨该地区≥0℃、≥10℃初终日、持续天数以及积温的变化特征。[结果]1961—2023年青海湖南部共和地区≥0℃、≥10℃初日(终日)呈极显著提前(推迟)趋势。≥0℃、≥10℃初日分别在2001、1985年发生了由迟到早的突变,终日分别在1994、1988年发生了由早到迟的突变。≥0℃、≥10℃持续天数呈极显著延长趋势,分别在1995、1978年发生了由短到长的突变。≥0℃、≥10℃积温呈极显著增加趋势,分别在1993、1987年发生了由少到多的突变。[结论]热量资源的增加对农业生产及农作物生长极为有利。[Objective]To analyze the change characteristics of thermal resources in the south of Qinghai Province.[Method]Using the daily average temperature in Gonghe County,south of Qinghai Lake from 1961 to 2023,the mathematical statistical methods such as linear trend,moving average and Mann-Kendall method were used to explore the change characteristics of the initial day(the ending day)≥0℃,≥10℃,duration and accumulated temperature in this area.[Result]The initial day≥0℃and≥10℃showed an extremely significant advance(delay)trend.The initial day≥0℃and≥10℃was a sudden change from late to early in 2001 and 1985,the ending day≥0℃and≥10℃mutation from early to late occurred in 1994 and 1988.Duration days≥0℃and≥10℃showed an extremely significant increase trend,mutation from short to long occurred in 1995 and 1978.The accumulated temperature of≥0℃and≥10℃showed an extremely significant increasing trend.The mutation from less to more occurred in 1993 and 1987 respectively.[Conclusion]The increase in heat resources is extremely beneficial for agricultural production and crop growth.

关 键 词：热量资源 积温 初终日 持续天数 变化特征 青海湖南部地区 

分 类 号：P467[天文地球—大气科学及气象学]