Deuterium Isotopic Characterization Of Long-Term Precipitation Water In Cluj-Napoca, Romania

摘要

This study was focused on the analysis of isotopic compositions of hydrogen in samples from precipitation water. Stable isotope compositions of groundwater are principally controlled by the compositions of precipitation, evaporation, mixing of water mass and isotope fractionation with phases in the aquifer. The strong link between long-term monthly average values of the local surface air temperature and the deuterium abundance of precipitation fallen over Cluj-Napoca, Romania in the time period 1975-2010 was evidenced. These data are of large interest in studies of groundwater and water movement in wetland.