包气带增厚条件下地下水补给规律研究

伴随人类活动影响的不断增大,地下水位持续下降,包气带厚度增大,改变了地下水的补给条件.为阐明在巨厚包气带中水分运移规律,在河北栾城实验站进行了包气带水分运移监测试验.通过对监测数据的计算和分析,揭示了大水漫灌条件下,灌溉水在包气带中湿润峰和零通量面（ZFP）的运移和形成规律,计算了灌溉水回归补给地下水的水量,并利用达西公式进行验证.试验结果客观准确地反映了在当前人类剧烈活动影响下,包气带中水分运移规律及灌溉水补给地下水的情况,同时通过对包气带水分运移情况进行监测,取得了包气带水分运移的翔实资料和灌溉参数,对于促进农业节水灌溉有重大的现实意义.

The groundwater recharge rule study in the condition of aeration zone incrassation

Following the constantly increased influence of the human activity,the water level drops and forms the hugely thick aeration zone and have changed the supply condition of the groundwater.For expounding the moisture transfer in the hugely thick aeration zone,the proving ground is monitored in Luancheng county,Hebei province.Through calculating and analyzing the monitoring data,the moisture transfer and form disciplinarian in the hugely thick aeration zone are posted under the flood irrigation,and the water amount of irrigative water that returned to supply the groundwater is calculated,then verify it using the Darcy formula.The result of the test has reflected impersonally and accurately that under the influence of present mankind's violent activity,the moisture transfer in the hugely thick aeration zone and the situation of the irrigative water that returned to supply the groundwater.At the same time,it has a great and practical meaning for utilizing the date to accelerate saving water in agriculture.