近60年青海省东部农业区气候变化特征分析  

Analysis of Climate Change Characteristics in the Eastern Agricultural Region of Qinghai Province in the Last 60 Years

作　　者：赵海玲 曹正娇 李晓琳 赵全宁 Zhao Hailing;Cao Zhengjiao;Li Xiaolin;Zhao Quanning(Key Laboratory of Disaster Prevention and Reduction in Qinghai Province,Xining 810001,China;Huangyuan Meteorological Bureau of Qinghai Province,Huangyuan 812100,China;Qinghai Institute of Meteorological Science,Xining 810001,China)

机构地区：[1]青海省防灾减灾重点实验室,西宁810001 [2]青海省湟源县气象局,湟源812100 [3]青海省气象科学研究所,西宁810001

出　　处：《青海科技》2023年第5期127-132,共6页Qinghai Science and Technology

基　　金：青海省防灾减灾重点实验室2021年开放基金面上项目“青海省东部农业区霜冻特征及对主要农作物的影响分析”(QFZ-2021-M25)。

摘　　要：根据青海省东部农业区1961-2020年的气温和降水资料,利用线性回归分析方法,对青海省东部农业区的气候变化特征进行分析。结果表明:青海省东部农业区气温整体呈现显著的上升趋势,且最低温度的升温程度普遍高于平均温度和最高温度;从区域来看,青海省东部农业区北部气温增温强于南部增温;从季节来看,冬半年升温高于夏半年;年降水量呈增多趋势,降水明显变化主要发生在4-10月,在作物产量形成非常关键的7-8月东部农业区部分区域降水减少较为明显。分析结果对了解和掌握青海省东部农业生产现状、进一步合理利用气候资源、开展防灾减灾、持续高效发展农业生产等方面具有重要的参考意义。Based on the temperature and precipitation data of the eastern agricultural region of Qinghai Province from 1961 to 2020,the article analyzes the climate change characteristics of the eastern agricultural region of Qinghai Province using linear regression analysis method.The results show that the overall temperature in the eastern agricultural area of Qinghai Province shows a significant upward trend,and the degree of warming at the minimum temperature is generally higher than the average temperature and the maximum temperature.From a regional perspective,the temperature increase in the northern part of the eastern agricultural region of Qinghai Province is stronger than that in the southern part,and the temperature rise in the winter half year is higher than that in the summer half year from a seasonal perspective.The annual precipitation shows an increasing trend,with significant changes occurring mainly from April to October.In some areas of the eastern agricultural region,where crop yield formation is crucial,precipitation decreases significantly from July to August.The analysis results have important reference significance for understanding and mastering the current situation of agricultural production in the eastern part of Qinghai Province,further rational utilization of climate resources,disaster prevention and reduction,and sustainable and efficient development of agricultural production.

关 键 词：青海省东部农业区 气候变化 气温 降水 

分 类 号：P467[天文地球—大气科学及气象学]