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Groundwater-derived Nutrient and Organic Matter: alteration during transit through coastal sediment

Objectif

Serious decline in coastal water quality and ecosystem health have resulted from population growth and agriculture, commercial, and industrial activities in coastal watersheds and from increased loading of anthropogenic wastes (organic and nutrients) originating at localized (sewage, industrial effluent) and diffuse (agriculture run-off) sources. Predicting the response of coastal ecosystems to land use change and eutrophication requires knowledge about all relevant sources of nutrient and organic material. Groundwater is an important, but poorly understood source of nutrients and organic material to coastal waters.

We propose to assess the impact of sediment microbial processes on groundwater quality and to also study how groundwater impacts water column pro cesses in the coastal ocean. We will use controlled lab experiments to evaluate how microbial activity influences nutrient and organic matter distributions in groundwater. We will determine how processing in coastal sediments alters groundwater DOM lability and the oxygen demand (OD) of groundwater.

The proposed research will answer fundamental questions regarding the alteration of groundwater-derived DOM and inorganic nutrients within coastal marsh, creek bank, and creek bed sediments and will improve our ability to predict fate of these materials in adjacent estuarine waters. As such, our work is important because the impact of allochthonous dissolved organic inputs on coastal ecosystem dynamics is rarely studied and thus is poorly understood.

Champ scientifique (EuroSciVoc)

Mots‑clés

Thème(s)

Appel à propositions

FP6-2004-MOBILITY-6
Voir d’autres projets de cet appel

Régime de financement

OIF - Marie Curie actions-Outgoing International Fellowships

Coordinateur

EIDGENÖSSISCHE ANSTALT FÜR WASSERVERSORGUNG, ABWASSERREINIGUNG UND GEWÄSSERSCHUTZ
Contribution de l’UE
Aucune donnée
Coût total
Aucune donnée

Participants (1)