In order to reveal the complicated hydrochemical changing process and the mechanism of fresh underground water being polluted by salt water, we conducted long-term observation and hydrochemical analyse in four observing sections of typical salt-fresh water transitional zone. 为揭示该地区地下咸-淡水过渡带复杂的水化学变化过程和地下淡水被侵染的机理,通过在典型地段咸-淡水过渡带的4条地下水观测剖面,进行了长期水化学监测分析。
The technology of eccentric motorized dispensing test, utilizing micro motor as power to adjust water nozzle, observing the variable flow rate on the surface, can obtain the judgment real time to modify the investigated zone. 注水井偏心电动调配测试技术利用微电机做动力源在井下调节水嘴,在地面直接观察井下流量变化,对调整目的层注入量可实时作出判断。
The field experiment method and basic procedure for observing the sediment vertical distribution in surf zone by using sediment trap are introduced, and the method for calculating the sediment flux using the experiment results is also described. 介绍了利用泥沙捕获器观测破波带泥沙垂直分布结构的现场实验方法和基本程序,以及利用实验结果计算泥沙通量的方法。
Observing of Suspended Sediment Concentration is vital for management of coastal environments in coastal zone and estuaries. 水体悬浮泥沙浓度监测在海岸带环境管理中有重要的意义。