摘要
利用1961—2015年山东省17个气象站点和山东省周边12个气象站点的日平均气温资料和该区域的DEM(数字高程模型)数据,采用混合插值和线性倾向估计方法,对山东省≥10℃初日、终日、持续日数和活动积温的时空变化特征进行了分析。结果表明:山东省≥10℃初日的空间分布呈现西部早,向东向北逐渐滞后的特征。≥10℃终日的空间分布呈现中部山区和胶东半岛高海拔地区早、南部地区和沿海地区晚的特征。≥10℃持续日数的空间分布呈现南部地区和济南西部及北部地区长、中部山区和胶东半岛高海拔地区短的特征。≥10℃活动积温的空间分布呈现西南地区高、中部山区和胶东半岛中北部低的特征。1961—2015年间,山东省17个气象站≥10℃初日均呈现提前趋势,17个气象站点平均气候倾向率为-1.38d/10a;≥10℃终日,除烟台外,其余16个气象站点呈推迟趋势,17个气象站点平均气候倾向率为0.74d/10a;17个气象站点≥10℃持续日数均呈增大趋势,其平均气候倾向率为2.12d/10a;17个气象站≥10℃的活动积温均呈现增大趋势,17个站平均气候倾向率为63.10℃·d/10a。
In this study, the daily average temperature data of 17 meteorological stations in Shandong Province and 12 meteorological stations around Shandong Province from 1961 to 2015, and the digital elevation model (DEM) data were used to analyze the spatial and temporal variation characteristics of heat resources ≥10℃ in Shandong Province by mixed interpolation and linear bias estimation methods. The results showed that the spatial distribution of beginning date of ≥10℃ came early in the west, and came later with the increase of latitude from south to north and the increase of longitude from west to east. The spatial distribution of ending date of ≥10℃ came early in the mountainous areas of central Shandong Province and high altitude areas of Jiaodong peninsula, and came late in the south and coastal areas. The duration of ≥10℃ was longer in the south of Shandong Province and the west and north areas of Jinan city compared with the mountainous areas of central Shandong Province and high altitude areas of Jiaodong peninsula. The spatial distribution of accumulated temperature of ≥10℃ was higher in the southwest areas and lower in the mountainous areas of central Shandong Province and high altitude areas of Jiaodong peninsula. From 1961 to 2015, the time series of beginning date of ≥10℃ showed decreasing trends for all the 17 meteorological stations with the average rate of -1.38 days/decade. The time series of ending date of ≥10℃ for 16 stations showed increasing trends with the average rate of 0.74 days/decade except Yantai station. Both the duration and accumulated temperature of ≥10℃ showed increasing trends for all 17 meteorological stations with the increasing rate of 2.12 day/decade and 63.10 ℃·d/decade, respectively.
作者
崔天丽
张国鑫
姜常松
杨锦忠
崔日鲜
Cui Tianli;Zhang Guoxin;Jiang Changsong;Yang Jinzhong;Cui Rixian(College of Agronomy,Qingdao Agricultural University,Qingdao 266109,China;Haiyang Agricultural Technology Extension Station,Haiyang 265100,China)
出处
《山东农业科学》
2019年第8期100-106,共7页
Shandong Agricultural Sciences
基金
国家重点研发计划项目(2016YFD0300306)
山东省高校优秀科研创新团队建设项目(6212n2)
