1960-2013年山东省日照时数时空变化特征  

Spatial and temporal variation characteristics of sunshine duration during 1960-2013 in Shandong Province,China

作　　者：马琼 李宝富[1] 李欣美 MA Qiong;LI Baofu;LI Xinmei(School of Geography and Tourism,Qufu Normal University,276826,Rizhao;Shandong Shouguang Middle School,262700,Shouguang,Shandong,PRC)

机构地区：[1]曲阜师范大学地理与旅游学院,日照市276826 [2]山东寿光中学,山东省寿光市262700

出　　处：《曲阜师范大学学报（自然科学版）》2020年第4期99-108,共10页Journal of Qufu Normal University(Natural Science)

基　　金：国家自然科学基金(41501211);山东省优秀中青年科学家科研奖励基金(BS2014HZ022)资助.

摘　　要：基于山东省1960-2013年的气象资料,运用线性趋势、IDW空间插值、Mann-Kendall检验和相关分析等方法对山东省日照时数的时空变化特征及其人为影响因素进行了分析.结果表明:山东省近54年平均日照时数为2529.95 h,其中春季日照时数最多,达723.05 h,冬季最少,仅为534.72 h.从各月来讲,5月份平均日照时数最多,为263.1 h,12月最少,仅为173.03 h.时间上,1960-2013年山东省日照时数整体呈显著减少的趋势(P<0.01),变化率为-6.89 h/a.其中,各季节日照时数也均呈显著(P<0.01)减少趋势,减少速率由大到小依次为:夏季(-2.89 h/a)、冬季(-1.77 h/a)、秋季(-1.41 h/a)和春季(-0.81 h/a).从各月来说,6月日照时数减少速率最大,为-1.15 h/a,而4月最小,仅为-0.1 h/a.空间上,山东省日照时数的空间分布特征表现为“北多南少,西北多东南少”,其中以山东半岛北部最多,东南沿海地区最少;而年均日照时数减少趋势的空间变化特征大致表现为“北少南多”的空间格局.日照时数减少速率与烟(粉)尘排放量具有显著的空间相关性(R=0.58,P<0.05).Based on the meteorological data of Shandong Province during 1960-2013,the methods of linear trend,IDW,Mann-Kendall test,and correlation analysis were used to analyze temporal and spatial variation of sunshine hours and human influence factors.The results show that average sunshine duration in Shandong province was 2529.95 h in recent 54 years.The maximum number of sunshine duration was in spring and up to 723.05 h while,sunshine duration in winter were the least,only 534.72 hours.From the month,in May,the average sunshine duration was the most and was 263 h while there was the least in December,only 173.03 h.On the time scale,during 1960-2013,the sunshine duration in Shandong province showed a significant decreasing trend(P<0.01)and its rate of change was-6.89 h/a.Among them,the sunshine duration in each season also showed a significant decreasing trend(P<0.01),the decreasing rates were as follows:in summer(-2.66 h/a),in winter(-1.79 h/a),in autumn(-1.40 h/a),in spring(-1.30 h/a).From the month,the decreasing rates in June was the largest and was-1.15 h/a while there was the smallest in April,only-0.1 h/a.Spatially,the spatial distribution characteristics of sunshine hours in Shandong province were"more in the north and less in the south,more in the northwest and less in the southeast".Furthermore,the northern part of Shandong peninsula was the most and the southeast coastal area was the least.The spatial variation characteristics of the decreasing trend of annual sunshine hours were generally shown as"less in the north and more in the south".The correlation between sunshine hours and smoke(powder)dust emission was significant(R=0.58,P<0.05).

关 键 词：日照时数 烟(粉)尘排放量 时间变化 空间分布 山东省 

分 类 号：P422[天文地球—大气科学及气象学]