INVESTIGADORES
LIMA Maria Lourdes
artículos
Título:
Groundwater Vulnerability Assessment Combining the Drastic and Dyna-Clue Model in the Argentine Pampas
Autor/es:
LIMA M.L.; ZELAYA K. ; MASSONE H.
Revista:
ENVIRONMENTAL MANAGEMENT
Editorial:
SPRINGER
Referencias:
Año: 2011 vol. 47 p. 828 - 839
ISSN:
0364-152X
Resumen:
Vulnerability assessment is considered an
effective tool in establishing monitoring networks required
for controlling potential pollution. The aim of this work is to
propose a new integrated methodology to assess actual and
forecasted groundwater vulnerability by including land-use
change impact on groundwater quality. Land-use changes
were simulated by applying a spatial dynamics model in a
scenario of agricultural expansion. Groundwater vulnerability
methodology DRASTIC-P, was modifyed by adding a
land-use parameter in order to assess groundwater vulnerability
within a future scenario. This new groundwater vulnerability
methodology shows the areas where agricultural
activities increase the potential level of groundwater vulnerability
to pollution. The Dulce Creek Basin was the study
case proposed for the application of this methodology. The
study revealed that the area with Very High vulnerability
would increase 20% by the year 2020 in the Dulce Creek
Basin. This result can be explained by analyzing the land-use
map simulated by the Dyna-CLUE model for the year 2020,
which shows that the areas with increments in crop and
pasture coincide with the area defined by the Very High
aquifer vulnerability category in the year 2020. Through
scenario analysis, land-use change models can help to
identify medium or long term critical locations in the face of
environmental change.