1956—2018年云南省临沧市气温变化特征  

Temperature Variation Characteristics of Lincang City,Yunnan Province from 1956 to 2018

作　　者：罗增明 吴利华[2] 李林[1] 赵宇[1] 徐其静 刘雪 LUO Zengming(Institute of Environmental Remediation and Health,Southwest Forestry University,Kunming,Yunnan 650224)

机构地区：[1]西南林业大学环境修复与健康研究院,云南昆明650224 [2]西南林业大学地理与生态旅游学院,云南昆明650224

出　　处：《农业灾害研究》2022年第2期94-97,共4页Journal of Agricultural Catastrophology

基　　金：国家自然科学基金项目(41867066,41907129);云南省自然科学基金项目(2019F B032);云南省高端外国专家项目(YNQR-GDWG-2018-017)。

摘　　要：云南省临沧市位于西南高原区域,地理位置特殊、气候类型多样,研究其气温变化特征对区域生态环境治理和指导农业生产具有重要意义,为相似区域的气温变化特征分析与农业生产调控提供参考。基于云南省临沧市8个气象站点1956—2018年气温观测资料,应用线性倾向估计、累积距平、气候异常指数、Mann–Kendall突变检验等方法,分析临沧市气温的年际、年代际及四季变化趋向和异常特征。结果表明:(1)63年来临沧市气温总体呈上升趋势(0.021℃/10 a),年平均气温为17.6℃,年及季平均气温均通过α=0.05显著性检验;(2)四季气温均呈增长趋势,春、夏、秋、冬增长率分别为0.018℃/10 a、0.022℃/10 a、0.022℃/10 a、0.024℃/10a,冬季增温幅度最大;(3)气温在1989年发生突变,冬季气温异常值较其他季节最大,正异常为主,变幅最大;(4)气温年较差变幅差异较大,年代际平均气温增幅明显加快,平均最低气温为8.78℃,平均最高气温为28.7℃。Lincang city,yunnan province,is located in the southwest plateau region,with special geographical location and diverse climate types.The study of its temperature change characteristics is of great significance for regional ecological environment management and agricultural production guidance,and provides reference for the analysis of temperature change characteristics and agricultural production regulation in similar regions.Based on the temperature observation data of 8 meteorological stations in Lincang city,Yunnan province from 1956to 2018,the interannual,interdecadal and seasonal variation trends and abnormal characteristics of temperature in Lincang city were analyzed by using linear trend estimation,cumulative anomaly,climate anomaly index and Mann-Kendall mutation test.The results showed that :(1) the air temperature in lincang city had been increasing(0.021℃/10 a) in the past 63 years,and the annual average air temperature was 17.6℃.Both annual and seasonal average air temperature passed the significance test α=0.05.(2) The annual temperature increased in spring,summer,autumn and winter were 0.018℃/10 a,0.022℃/10 a,0.022℃/10 a,0.024℃/10a,respectively.The temperature increases in winter were the largest.(3) There was a sudden change in temperature in 1989,and the anomalies in winter were the largest and the positive anomalies were the main ones with the largest variation range.(4) There was a great difference in the amplitude of annual temperature difference,and the increase of interdecadal average temperature was obviously accelerated.The average minimum temperature was 8.78℃,and the average maximum temperature was 28.7℃.

关 键 词：气温 年际变化 年代际变化 四季变化 

分 类 号：P423.3[天文地球—大气科学及气象学]