ABSTRACT
Temperature, salinity, pH, and Dissolved Oxygen (DO) were measured in situ by a portable multi-parameter analyzer (MULTT3430); groundwater depth was measured in situ by using Solinst 101 water gauge; NH4+-N, NO3−-N, and NO2−-N were measured by a continuous flow analyzer method (ALLIANCE console future), and the Geo-statistic method was used to analysis the spatial variation of them; chloridion was analyzed by using silver nitrate capacity method.
