Extensive groundwater withdrawal in Hanoi during the last decades resulted in significant depletion of aquifer storages, which has been recorded at various locations in the Hanoi city. In conditions of rapid decrease of subsurface water resources efficient groundwater management is critical. This implies the necessity of precise evaluation of natural recharge as well as its sensitivity to various factors caused by area urbanization and prediction of its response to future land cover and land use changes. | Effect of urbanization on natural groundwater recharge within Hanoi city - a case study of Long Bien district