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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (36): 264-270.doi: 10.11924/j.issn.1000-6850.2014-1749

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

鲁西平原1961—2012年日照时数时空分布特征

孙培良,刘顼,宁瑞斌,纪凡华,王丽,闫景东   

  1. 山东聊城气象局,山东聊城气象局,山东聊城气象局,山东聊城市气象局,山东聊城气象局,山东聊城气象局
  • 收稿日期:2014-06-23 修回日期:2014-06-23 接受日期:2014-08-08 出版日期:2015-03-20 发布日期:2015-03-20
  • 通讯作者: 孙培良
  • 基金资助:
    聊城气象发展研究基金“聊城农业气候资源的时空变化特征和利用对策”(2014lcqx02)。

Sunshine Luxi Plains Distribution in Time and Space in 1961-2012

  • Received:2014-06-23 Revised:2014-06-23 Accepted:2014-08-08 Online:2015-03-20 Published:2015-03-20

摘要： 为了能更好地适用聊城市农业生产结构调整，有针对性的指导的农业生产，发挥聊城农业大市的优势，对聊城近52年日照时数的时空变化特征进行研究。利用气候倾向率、趋势系数等方法，依托GIS技术明晰了鲁西平原地区52年日照时数的时空变化特征。以聊城市辖区内8个县（市、区）地面气象观测站1961—2012年逐日日照时数为基础，构建鲁西地区逐月、季度、年度的平均日照时数系列数据集。采用气候倾向率、农业气象学的方法和GIS技术，对鲁西平原地区日照的月、季和年的变化趋势及其空间分布特征进行系统分析。结果表明：鲁西平原地区年际日照时数和四季日照时数均呈减少趋势，各月的日照时数仅4月略有增加，其余月份均呈显著减少趋势；各县（市、区）中主要以位于中部的聊城城区为中心的日照时数减少趋势最为明显、位于东部的茌平、西部的冠县和东北部高唐县减少次之，而西北部的临清和西南部的莘县减幅最小。全年月平均日照时数变化曲线呈单峰型，峰值出现在5月，最少的是12月；四季中均以东北部的高唐最多，向西南方向逐渐减少，春、夏、秋三季是西南部的莘县最少；冬季则是位于南部偏西的阳谷县最少；年平均日照时数以高唐最多，莘县最少。研究结果为合理利用农业气候资源，建设生态农业提供科学依据。

关键词: 基因表达, 基因表达

Abstract: In order to adapt to agricultural production restructure and guide agricultural production in Liaocheng, and give a full play of its agricultural advantage, the author studied the temporal and spatial sunshine variations in the past 52 years. Climate trend rate, the trend coefficient method and GIS technology were used to clarify the temporal and spatial characteristics of shine of Luxi plains. Based on data of sunshine hours in 1961-2012 of eight counties in Liaocheng, the author constructed time series data set of the number of daily sunshine on monthly, quarterly and yearly basis, and analyzed their variation trend and spatial distribution characteristics. The results showed that: the annual hours of sunshine and the seasonal hours of sunshine of Luxi Plains both had a decreasing trend, sunshine hours of each month had a slight increase only in April and a significant decreasing trend in the rest of the months. Among the counties (cities, districts), sunshine hours in the center of Liaocheng reduced obviously, followed by Chiping in the east, Guanxian in the west and Gaotang in the northeast, while Linqing in the northwest and Shenxian in the southwest had the minimum decreasing rate. Annual monthly average sunshine time curve showed a single peak, the peak appeared in May, the least was December. Annual monthly average shine hours were the maximum in Gaotang and gradually reduced to the southwest, and were the minimum in Shenxian in spring, summer and autumn, and in Yanggu in winter. Average annual sunshine hours were the maximum in Gaotang and the minimum in Shenxian. The results could provide a scientific basis for the rational utilization of agricultural climate resources and the construction of ecological agriculture.