Study on Classification and Statistical Methods of Groundwater and Brackish Water with Multi-Stratum Structure
In order to reasonably distinguish the water supply of groundwater(salinity M≤2 g/L)and brackish water(M>2 g/L)in the multi-stratigraphic structure area,taking Jiash County in Xinjiang as an example,a three-dimensional stratigraphic structure model is constructed,combined with basic information such as the location,depth and water supply of electro-mechanical wells as well as the de-tection of the salinity of typical electromechanical wells,the water supply of groundwater(salinity M≤2 g/L)and saline water(M>2 g/L)in each stratum is calculated according to the methods of layered statistics of electromechanical wells,stratum-by-stratum salinity zoning map drawing,and stratum-by-stratum superposition of electromechanical wells and salinity zoning maps.The results show that that the water supply of groundwater(salinity M≤2 g/L)and the water supply of brackish water(M>2 g/L)in Jiashi County in 2021 is 413 million m3,and the water supply of salt water(M>2 g/L)is 655 million m3.The specific analysis method of groundwater(salinity M≤2 g/L)and saltwater(M>2 g/L)water supply proposed in this study has high operability and can provide an important reference for the reasonable water supply statistics of groundwater(salinity M≤2 g/L)and brackish water(M>2 g/L)in similar areas in the future.
multi-stratum structureground waterbrackish waterdegree of salinityclassified statistics