Wetlands in the coastal dunes between Monte Hermoso and Pehuen Có, Buenos Aires province, Argentina. Hydrological typification

This research, which is part of a larger research project, aims to recognize and typify the wetland sectors which are identified in the dunes line between the Monte Hermoso city and Pehuen Có village, in the southwest coast of Buenos Aires province, Argentina. A well-known hydrological characterization methodology is applied, which takes into account factors such as water origin, emptying mode, hydroperiod, renewal rate, and hydrochemical composition. The study is based on field and laboratory information, scientific background works and interpretation of satellite images. The presence and hydrological functioning of these wetlands are essentially linked to the aquifer`s hydrodynamics and, in particular, to the discharge zones. The presence of superficial water between the dunes constitutes a singularity of these natural spaces. This contribution allows knowing some wetlands in the coastal dunes, locate them and define their level of integrity. It is necessary to investigate the spatial variability and temporal hydrochemical evolution. It warns about the environmental importance of these environments and their need for proper management and conservation.