近60年莘县气温和降水变化特征及其对农业生产的影响

利用莘县气象局提供的1957—2016年气温和降水资料,采用统计分析方法,对近60年来莘县气温和降水的变化特征及其对农业生产的影响进行分析。结果表明,近60年来莘县年平均气温呈上升趋势,且具有明显的季节变化特点,冬季增温明显,春、秋季次之,夏季变化不明显;近60年来莘县年降水量呈下降趋势,且具有明显的阶段性。夏季降水集中旱涝灾害并存,春、秋季易发生旱灾,冬季雨雪稀少。

Change Characteristics of Temperature and Precipitation in Shenxian in Recent 60 Years and Their Impacts on Agricultural Production

Using the data of temperature and precipitation from 1957 to 2016 provided by Shenxian Meteorological Bureau,the change characteristics of temperature and precipitation in Xinxian in recent 60 years and its impact on agricultural production were analyzed by statistical analysis method.The results showed that the annual average temperature in Shenxian had been on an upward trend in recent 60 years and had obvious seasonal variation.The warming in winter was obvious,while in spring and autumn,there was no obvious change in summer.The annual precipitation of Shenxian in recent 60 years showed a downward trend,and had obvious stage.Summer precipitation was concentrated,and the coexistence of droughts and floods;spring and autumn were prone to drought;rain and snow were rare in winter.