Study On Statistical Methods Of Groundwater Exploitation In Tianjin

Regional groundwater exploitation is foundation and basis thatgroundwater resources management departments formulate reasonabledevelopment and protection of groundwater, the existing methods ofcounting the regional groundwater exploitation is mainly used to collectthe data and investigation. Due to the influence of human factorinterference and groundwater exploitation discontinuity, the statisticsresults of groundwater exploitation is uncertain，we are eager to searchvarious estimation methods that are meeting the requirement, the methodsmust be scientific and reasonable.This paper selects three kinds of methods for calculating thegroundwater exploitation in Tianjin. we calculate the groundwaterexploitation in1998-2008in Tianjin by the related elements and calculatethe groundwater exploitation in1998-2008in Tianjin plain area by thenumerical simulation, we compute the agricultural groundwaterexploitation in1998-2008in Tianjin by the ratio of water–electricityin experiment.This paper compared and analyzed the groundwater exploitation resultsthat is calculated by the three kinds methods, moreover the paper comparedthe calculated results to the statistical result by the groundwaterresources management departments. This thesis analysed the advantages anddisadvantages of the calculated groundwater exploitation by variousmethods, the dissertation provides a scientific method for thestatistical work of the groundwater exploitation and scientific basis forgroundwater resources optimal allocation and the sustainable developmentand utilization.