By: Odalys Espinoza
Climate
change has been a worldwide problem for decades that has affected water
resources and hydrogeological systems. Consequently, nitrate has been taken as
a paradigmatic pollutant to demonstrate the result of climate change on the
quality of our groundwaters. Multiple methods have been dedicated to restore
agricultural practices and examine the biogeochemical processes involved when identifying
denitrification rates and throughout aquifer clean-up that essentially gets rid
of nitrate from groundwater as well as restores the polluted groundwater that
has been withdrawn from the aquifer. In the face of rising nitrate concentrations
in the subsurface, dilution has been a vital process that has been utilized in
aquifers to reduce nitrate concentration. In this particular instance, aquifers
in Catalonia have been analyzed to determine the effects of climate change on nitrate
concentrations for a western Mediterranean climatic setting. Based on the
current nitrate groundwater concentrations, it is inevitable that the overall content
will reach an approximate nitrogen magnitude that could even out the effect of diminishing
recharge. Through this research, it has
been determined that by placing a control in nitrogen input concentrations that
originated from fertilization, will be aid in management strategies for
alluvial and fluviodeltaic aquifers. The trade-offs of this procedure include: (1) preventing the
environmental deterioration of groundwater bodies and linked ecosystems and (2)
large amounts of money. Environmental preservation is crucial to conserve nitrogen
assimilation rates.
The development of nitrate concentration in the aquifer in the basis of the mass balance model for the different aquifers used in this study under distinct future hydrogeological conditions; present, 2050, and a linearly variation of recharge rates.
Reference
Mas-Pla J., and A. Mencio. 2018. Groundwater nitrate pollution and climate change: learnings from a water balance-based analysis of several aquifers in a western Mediterranean region (Catalonia). Environ. Sci. Pollut. Res. 26:2184-2202.

It's interesting to relate the nitrate concentration to water recharge. By addressing the fertilizer input, this could make a huge difference in promoting environmental sustainability.
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