1960-2012年定州市降水量变化特征分析

1、    19602012年定州市降水量变化特征分析    刘晓敏 孙天合 张天蒙摘要 利用19602012年定州市降水量资料，采用滑动平均法、累积距平法，分析近53年定州市降水量变化特征。结果表明，19602012年定州市降水量总量在减少，19972012年连续16年年及夏季降水量偏少。定州市农田灌溉主要依靠地下水，降水量减少，地下水位降低，浅层地下水超采，定州市水资源处于紧缺加剧的局面。减少农业用水量是今后定州市农业发展的必然选择，其他行业也应该节约用水，提高用水效率。关键词 降水量;变化特征;定州市tv213 a0517-6611（2019）11-0

2、213-02doi：10.3969/j.issn.0517-6611.2019.11.062开放科学（资源服务）标识码（osid）：abstract based on the precipitation data of dingzhou city from 1960 to 2012， the sliding average method and cumulative anomaly method were used to analyze the change characteristics of precipitation in dingzhou city in the past 53 yea

3、rs.the results showed that the total precipitation in dingzhou city decreased from 1960 to 2012， and the total rainfall in 1997 to 2012 was relatively low for 16 consecutive years and summer. the irrigation of farmland in dingzhou mainly relies on groundwater， the precipitation is reduced， the groun

4、dwater level is reduced， the shallow groundwater is overexploited， and the water resources in dingzhou are in a situation of increasing shortage.reducing agricultural water consumption is the inevitable choice for the future agricultural development of dingzhou city. other industries should also save water and improve water efficiency.key words precipitation;change characteristics;dingzhou city基金项目 河北省社会科学基金