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中国农学通报

中国农学通报 ›› 2017, Vol. 33 ›› Issue (15): 124-128.doi: 10.11924/j.issn.1000-6850.casb16060074

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

山西省日照时数的时空变化特征

赵永强,王志伟,李海涛   

  1. (山西省气候中心,太原 030002）
  • 收稿日期:2016-06-15 修回日期:2016-12-20 接受日期:2016-12-23 出版日期:2017-05-26 发布日期:2017-05-26
  • 通讯作者: 赵永强
  • 基金资助:
    公益性行业（气象）科研专项“干旱对华北玉米生长发育和产量影响的定量评估技术研究”(GYHY201306038)；山西省气象局项目“基于DEM的山西省近50年日照时空变化特征分析”(SXKYBQH20138714)。

Sunshine Hours in Shanxi: Spatio-temporal Variation Characteristics

Zhao Yongqiang, Wang Zhiwei, Li Haitao   

  1. (Shanxi Climate Center, Taiyuan 030002)
  • Received:2016-06-15 Revised:2016-12-20 Accepted:2016-12-23 Online:2017-05-26 Published:2017-05-26

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摘要： 基于山西省109个气象站点1961—2010年的日照时数资料，笔者采用气候倾向率分析、M-K突变检测和空间插值分析等方法，分析了山西省日照时数的时空变化特征。结果表明近50年来，山西省平均日照时数在年代、年、季尺度上都呈减少趋势，年平均减少幅度为64.16 h/10 a；四季日照时数中，夏季日照最多，冬季最少，各季变化中夏季减幅最大，春季最小；月变化为单峰型，最大值出现在5月；山西省日照时数年、季都存在由多到少的突变，年突变在1987年。山西省日照时数空间差异明显，表现为由南部到北部逐渐增加，南部地区少于北中部地区；大部分地区表现减少趋势，个别地区为增加趋势，其中年日照时数以潞城减幅最大，减幅为207.7 h/10 a。

关键词: 苦荞, 苦荞, 播期, 农艺性状, 产量

Abstract: Based on sunshine hours data of 109 meteorological stations from 1961 to 2010 in Shanxi, the authors used the methods of climate tendency rate analysis, M-K mutation detection and spatial interpolation, spatio-temporal variation characteristics of sunshine hours in Shanxi were analyzed. The results showed that: seasonal, annual, and decadal sunshine hours were decreased with an average rate of -64.16 h/10 a; sunshine hours in was summer the most, in winter was the least, seasonal changes in summer declined was maximum, in spring was minimum; monthly sunshine hours was unimodal, the maximum appeared in May; annual and seasonal sunshine hours happened mutation in 1987 from more to less; the annual sunshine hours decreased from north to south, north and middle was more than south; most of the region showed a decreasing trend, the individual area increased, of which, annual sunshine hours in Lucheng had biggest declines with the rate of 207.7 h/10 a.