| 山西省日照时数的时空变化特征 |
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| 引用本文： | 赵永强,王志伟,李海涛.山西省日照时数的时空变化特征[J].中国农学通报,2017,33(15):124-128. |
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| 作者姓名： | 赵永强 王志伟 李海涛 |
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| 作者单位： | 山西省气候中心,山西省气候中心,山西省气候中心 |
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| 基金项目： | 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)。 |
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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。
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| 关 键 词： | 日照时数 时空变化特征 山西 |
| 收稿时间： | 2016/6/15 0:00:00 |
| 修稿时间： | 2016/12/20 0:00:00 |
Sunshine Hours in Shanxi: Spatio-temporal Variation Characteristics |
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| Zhao Yongqiang,Wang Zhiwei and Li Haitao.Sunshine Hours in Shanxi: Spatio-temporal Variation Characteristics[J].Chinese Agricultural Science Bulletin,2017,33(15):124-128. |
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| Authors: | Zhao Yongqiang Wang Zhiwei and Li Haitao |
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| Institution: | Shanxi Climate Center,Shanxi Climate Center,Shanxi Climate Center |
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| 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. |
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| Keywords: | Shanxi sunshine hours spatio-temporal variation characteristics |
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