Importance of budgets for estimating the input of groundwater-derived nutrients to an eutrophic tidal river and estuary

U Makings, IR Santos, DT Maher… - Estuarine, Coastal and …, 2014 - Elsevier
Groundwater is often overlooked as a source of nutrients to estuaries and most previous
groundwater-surface water exchange studies did not consider the input of dissolved organic …

Fresh meteoric versus recirculated saline groundwater nutrient inputs into a subtropical estuary

M Sadat-Noori, IR Santos, DR Tait, DT Maher - Science of the total …, 2016 - Elsevier
The role of groundwater in transporting nutrients to coastal aquatic systems has recently
received considerable attention. However, the relative importance of fresh versus saline …

Global subterranean estuaries modify groundwater nutrient loading to the ocean

SJ Wilson, A Moody, T McKenzie… - Limnology and …, 2024 - Wiley Online Library
Terrestrial groundwater travels through subterranean estuaries before reaching the sea.
Groundwater‐derived nutrients drive coastal water quality, primary production, and …

The contribution of groundwater discharge to nutrient exports from a coastal catchment: post-flood seepage increases estuarine N/P ratios

IR Santos, J de Weys, DR Tait, BD Eyre - Estuaries and coasts, 2013 - Springer
Four months of daily nutrient and radon (a natural groundwater tracer) observations at the
outlet of a heavily drained coastal wetland illustrated how episodic floods and diffuse …

Hydroclimatic variability drives submarine groundwater discharge and nutrient fluxes in an anthropogenically disturbed, semi-arid estuary

AR Douglas, D Murgulet, PA Montagna - Science of The Total Environment, 2021 - Elsevier
Nutrient budgets in semi-arid estuaries, with ephemeral freshwater inflows and limited
nutrient sources, are likely incomplete if contributions from submarine groundwater …

Seasonal changes in groundwater input to a well‐mixed estuary estimated using radium isotopes and implications for coastal nutrient budgets

RP Kelly, SB Moran - Limnology and Oceanography, 2002 - Wiley Online Library
226Ra (half‐life 1,600 yr) and 228Ra (half‐life 5.75 yr) were used as tracers to determine
seasonal changes in groundwater input to the Pettaquamscutt estuary from June 1999 to …

Tidal and groundwater fluxes to a shallow, microtidal estuary: constraining inputs through field observations and hydrodynamic modeling

NK Ganju, M Hayn, SN Chen, RW Howarth… - Estuaries and …, 2012 - Springer
Increased nutrient loading to estuaries has led to eutrophication, degraded water quality,
and ecological transformations. Quantifying nutrient loads in systems with significant …

Evaluating groundwater discharge to tidal rivers based on a Rn-222 time-series approach

RN Peterson, IR Santos, WC Burnett - Estuarine, Coastal and Shelf …, 2010 - Elsevier
The natural flux of groundwater into coastal water bodies has recently been shown to
contribute significant quantities of nutrients and trace metals to the coastal ocean …

Submarine groundwater discharge estimates using radium isotopes and related nutrient inputs into Tauranga Harbour (New Zealand)

BT Stewart, KR Bryan, CA Pilditch, IR Santos - Estuaries and coasts, 2018 - Springer
Land-based pollutants such as fertilizers and wastewater can infiltrate into aquifers and
discharge into surrounding coastal water bodies as submarine groundwater discharge …

Significant chemical fluxes from natural terrestrial groundwater rival anthropogenic and fluvial input in a large-river deltaic estuary

X Luo, JJ Jiao, WS Moore, JA Cherry, Y Wang, K Liu - Water research, 2018 - Elsevier
The shores of the Pearl River estuary are home to 35 million people. Their wastes are
discharged into the large river delta-front estuary (LDE), one of the most highly polluted …