摘要
通过对庆阳市1990—2020年8个国家气象站的气温、日照、降水等基础气象资料以及气象灾害监测数据分析,用线性趋势法和Mann-Kendall趋势检验法分析了影响庆阳市设施农业的各类气象灾害的时间变化特征,同时利用反距离加权插值法分析庆阳市设施农业主要气象灾害的空间分布特征。结果表明,1990—2O20年,庆阳市极端最低气温与冬季平均气温呈升高趋势;强降温发生频率最低,呈上升趋势,空间分布东北多西南少;寡照天气发生频率最高,呈上升趋势,空间分布南多北少;干旱和冰雹发生频率略次于寡照灾害,均呈下降趋势,干旱以庆阳市西北和东南地区发生频率最高,冰雹以庆阳市西南地区发生频率最高,西北地区次之。总体而言,以西峰区、庆城县最适宜设施农业种植布局。
Through the analysis of basic meteorological data such as temperature,sunshine,precipitation and meteorological disaster monitoring data of 8 national weather stations in Qingyang city from 1990 to 2020.The linear trend method and the Mann-Kendall trend test method were used to analyze the temporal change characteristics of various meteorological disasters affecting Qingyang’s facility agriculture.At the same time,the inverse distance weighted interpolation method was used to analyze the spatial distribution characteristics of the main meteorological disasters of Qingyang’s facility agriculture.The results showed that from 1990 to 2020,the extreme minimum temperature and winter average temperature in Qingyang city showed an increasing trend;the frequency of strong cooling was the lowest,showing an upward trend,with more frequent distribution in the northeast and less distribution in the southwest;the frequency of low-light weather was the highest,showing an upward trend.The spatial distribution was more in the south and less in the north;the frequency of drought and hail was slightly second to that of oligo-sun disasters,and both show a downward trend.The frequency of drought is the highest in the northwest and southeast of Qingyang city,the frequency of hail was the highest in the southwest of Qingyang,and the second in the northwest.In general,Xifeng district and Qingcheng county are most suitable for facility agricultural planting.
作者
王娟
郭海瑛
宋亚男
陈帆
张雪姣
李岩
WANG Juan;GUO Hai-ying;SONG Ya-nan;CHEN Fan;ZHANG Xue-jiao;LI Yan(Huan County Bureau of Meteorology,Qingyang 745700,Gansu,China;Zhenyuan County Bureau of Meteorology,Qingyang 744500,Gansu,China;Heshui county Bureau of Meteorology,Qingyang 745400,Gansu,China)
出处
《湖北农业科学》
2021年第S02期215-218,233,共5页
Hubei Agricultural Sciences
基金
庆阳市气象局科研项目(QY2021-7)
关键词
设施农业
气象灾害
发生频率
时空分布
庆阳市
facility agriculture
meteorological disasters
occurrence frequency
temporal and spatial distribution
Qingyang city
