Mitigation Of Estuarine Eutrophication
Processes By Controlling Freshwater Inflows
Author(s)
A. A. L. S. Duarte & J. M. P. Vieira
Abstract
Residence time is broadly recognised as a key-parameter to assess estuarine
eutrophication vulnerability since it is related to the eutrophication gradients
observed in many estuarine systems. The increase of estuarine flushing capacity
can be seen as a management measure to mitigate or to invert eutrophication
processes. The southern arm of the Portuguese river Mondego estuary was
strongly stressed by an eutrophication process due to massive nutrient loading
from urbanised areas, aquaculture farms and agricultural land runoff. A research
work was carried out in the development of a hydroinformatic tool (MONDEST
model) for the description and assessment of freshwater inflows effects on
residence time spatial variation in estuarine systems. This tool was applied in the
identification of the most critical zones subjected to an eutrophication process,
considering different hydrodynamic scenarios. MONDEST model can be a
powerful tool for enhancing wetland eutrophication vulnerability assessment in
order to establish the best water quality management practices and restoration
measures for the environmental sustainability of this complex aquatic ecosystem.
Keywords: estuarine sustainable management, wetlands, hydroinformatics,
eutrophication, residence time, Mondego estuary.
Keywords
estuarine sustainable management, wetlands, hydroinformatics,
eutrophication, residence time, Mondego estuary
Related Book
Other papers in this volume
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