摘要
为选择合理的监测时间做到以最少的投入掌握地下水动态变化趋势,以河北省衡水市地下水动态监测为例,根据衡水市的水文地质条件将地下水监测站井所在处划分为3个水文地质分区,选取6个代表性站点2003～2009年观测资料,采用数理统计、观测方案优化地下水动态监测时间。结果表明,地质条件和年际变化对地下水变化规律影响不明显,地下水观测频次基本可忽略年际变化和地质条件的影响,在地下水补给和排泄条件相对稳定的前提下,在汛前、汛期、汛后选择正确的观测时间,一年3次的观测频次即可反映地下水位的基本变化趋势。
In order to select reasonable monitoring frequency and grasp the dynamic variation law of groundwater with the least investment,taking groundwater dynamic monitoring in Hengshui city of Hebei Province for an example,groundwater monitoring station is divided into three hydrogeology subareas based on the geological condition in Hengshui city.Selecting observed data of six representative stations in 2003～2009,mathematics statistics and observation scheme are used to optimize groundwater dynamic monitoring frequency.The results show that interannual variability and geological condition usually do not affect on the change trend of groundwater;groundwater observation frequency can ignore basically the influence of nterannual variability and geological condition.On the premise of relative stability of groundwater replenishment and drainage,choosing the correct observation time before flood period,flood season and after flood period,three times observation frequency in a year can reflect the change trend of groundwater.
出处
《水电能源科学》
北大核心
2013年第2期109-111,243,共4页
Water Resources and Power
基金
国家自然科学基金资助项目(51209225)
水文水资源与水利工程科学国家重点实验室开放研究基金资助项目(2011490511)
关键词
地下水动态监测
地质状况
年际变化
观测时间
观测频次
dynamic monitoring of groundwater
geological condition
interannual variability
observation time
observation frequency
