1960-2012年定州市降水量變化特征分析

1、    19602012年定州市降水量變化特征分析    劉曉敏 孫天合 張?zhí)烀烧?利用19602012年定州市降水量資料，采用滑動平均法、累積距平法，分析近53年定州市降水量變化特征。結(jié)果表明，19602012年定州市降水量總量在減少，19972012年連續(xù)16年年及夏季降水量偏少。定州市農(nóng)田灌溉主要依靠地下水，降水量減少，地下水位降低，淺層地下水超采，定州市水資源處于緊缺加劇的局面。減少農(nóng)業(yè)用水量是今后定州市農(nóng)業(yè)發(fā)展的必然選擇，其他行業(yè)也應該節(jié)約用水，提高用水效率。關鍵詞 降水量;變化特征;定州市tv213 a0517-6611（2019）11-0

2、213-02doi：10.3969/j.issn.0517-6611.2019.11.062開放科學（資源服務）標識碼（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基金項目 河北省社會科學基金