Land use change scenarios and associated groundwater impacts in a protected peri-urban area |
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Authors: | Elias Dimitriou Elias Moussoulis |
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Institution: | (1) Hellenic Centre for Marine Research, Institute of Inland Waters, Anavissos, Greece |
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Abstract: | Land use changes in peri-urban areas are usually associated with significant impacts on groundwater resources due to alteration
of the recharge regime as well as through the establishment of pollution sources. Quantifying the aforementioned impacts and
assessing the vulnerability of the groundwater resources is an important step for the better management and protection of
the aquifers. In the present study, a physically based, distributed hydrologic model has been used to identify the impacts
from specific land use change scenarios in the protected area of Loutraki catchment. A vulnerability assessment method has
been also implemented to provide a decision support tool to the land planning authorities and also hydrologic mitigation measures
for the sustainable development of the area have been proposed. The hydrologic impacts of the land use scenarios include a
5% reduction in the annual recharge of the study aquifer for scenario 1 (doubling of the current urban areas) and 7% decrease
for scenario 2 (tripling of the current urban areas). Nevertheless, these impacts can be minimised if small-scale artificial
recharge infrastructure is developed and the land planning measures suggested through the vulnerability and recharge maps
will be followed. |
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