山西省冬小麦需水量与气象因素的关联性  

Correlation between water requirement of winter wheat and meteorological factors in Shanxi Province

作　　者：侯洋 HOU Yang(Yuxian Meteorological Bureau of Shanxi Province,Yuxian 045000,Shanxi,China)

机构地区：[1]山西省盂县气象局,山西盂县045000

出　　处：《湖北农业科学》2025年第2期1-5,20,共6页Hubei Agricultural Sciences

基　　金：阳泉市气象局科学技术研究项目“基于人影作业效果分析对盂县人影作业最佳模式”(YQKYBFW20230004)。

摘　　要：为了对冬小麦灌溉进行科学指导,综合分析了山西省冬小麦需水量、缺水量和水分盈亏指数的年际变化,采用改进的灰色关联分析法对山西省冬小麦需水量与各气象因素间的关联度进行分析。结果显示,1973—2020年,山西省冬小麦需水量为460.25~600.76 mm,缺水量为247.59~493.41 mm,水分盈亏指数为0.53~0.89。中部地区最高气温、水面蒸发量、日照时间与冬小麦需水量的关联度排前三位,分别为0.907、0.874和0.861;南部地区最高气温、日照时间、风速与冬小麦需水量的关联度排前三位,分别为0.889、0.873和0.864;全域范围内,水面蒸发量、降水量和日照时间与冬小麦需水量的关联度排前三位,分别为0.892、0.887和0.851,表明这三者对冬小麦需水量的影响最明显。To provide scientific guidance for winter wheat irrigation,the inter-annual variations of water requirement,water deficit and water profit and loss index of winter wheat in Shanxi Province were comprehensively analyzed,and the correlation between water requirement of winter wheat and various meteorological factors in Shanxi Province was analyzed by the improved grey correlation analy⁃sis method.The results showed that from 1973 to 2020,the water requirement for winter wheat in Shanxi Province was 460.25~600.76 mm,the water deficit was 247.59~493.41 mm,and the water profit and loss index was 0.53~0.89.The maximum air temperature,wa⁃ter surface evaporation and sunshine duration ranked the top three in the correlation with winter wheat water demand in the central re⁃gion,with correlation degrees of 0.907,0.874 and 0.861,respectively.The maximum air temperature,sunshine duration and wind speed ranked the top three in the correlation with winter wheat water demand in the southern region,with correlation degrees of 0.889,0.873 and 0.864,respectively.The water surface evaporation,precipitation and sunshine duration ranked the top three in the correla⁃tion with winter wheat water demand across the entire region,with correlation degrees of 0.892,0.887 and 0.851,respectively.These three factors had the most significant impact on the water demand of winter wheat.

关 键 词：冬小麦 需水量 气象因素 关联性分析 山西省 

分 类 号：S512.11[农业科学—作物学] S162.53