2017年春季大连市普兰店区气候特点及其对农业的影响

Climate Characteristics and Its Effect on Agriculture of Pulandian District in Dalian City in Spring of 2017

统计分析了2017年春季普兰店区气候主要气象要素特征,并概括气象服务重点。结果表明,2017年春季(3—5月)气温明显偏高,降水明显偏少,出现阶段性干旱,日照时数接近常年略偏少。全区春季平均气温11.3℃,比常年偏高1.6℃,接近2016年平均值;春季降水量59.7 mm,比常年偏少37.7 mm,比2016年偏少71.7 mm;春季日照时数708.8 h,比常年偏少20.4 h,比2016年偏少17.0 h。春播春种期间温、光、水气象条件匹配比较好,对大田作物适时播种影响不大。

The characteristics of main meteorological factors of Pulandian District in spring of 2017 were analyzed,and the key points of meteorological services were summarized. The results showed that the temperature was significantly higher in the spring of 2017 （March to May）, and the precipitation was less than that of average year, appeared periodic droughts, sunshine hours were slightly less but close to that of average year. In spring of 2017,average temperature was 11.3 ℃ throughout the district, 1.6 ℃ higher than that of average year,and close to that of 2016. The precipitation in the spring of 2017 was 59.7 mm, 37.7 mm less than that of average year, and 71.7 mm less than that of 2016. The sunshine hours in spring of 2017 was 708.8 h, 20.4 h less than that of average year, and 17.0 h less than that of 2016. During the spring, temperature ,light, water and weather conditions matched preferably, which had little effect on crop sowing.