Global dam-driven changes to riverine N:P:Si ratios delivered to the coastal ocean: Data Set S1


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Created: Jun 05, 2020 at 9:25 p.m.
Last updated: Jul 25, 2020 at 6:31 p.m.
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Abstract

This resource contains Data Set S1, as referenced in Maavara, T., Akbarzadeh Z., Van Cappellen, P. (2020). Global dam-driven changes to riverine N:P:Si ratios delivered to the coastal ocean. Geophysical Research Letters (47). doi: 10.1002/(ISSN)1944-8007.

Article abstract: River damming alters nutrient fluxes along the land-ocean aquatic continuum as a result of biogeochemical processes in reservoirs. Both the changes in riverine nutrient fluxes and nutrient ratios impact ecosystem functioning of receiving water bodies. We utilize spatially distributed mechanistic models of nitrogen (N), phosphorus (P) and silicon (Si) cycling in reservoirs to quantify changes in nutrient stoichiometry of river discharge to coastal waters. The results demonstrate that the growing number of dams decouples the riverine fluxes of N, P and Si. Worldwide, preferential removal of P over N in reservoirs increases N:P ratios delivered to the ocean, raising the potential for P limitation of coastal productivity. By mid-century more than half of the rivers discharging to the coastal zone will experience a higher removal of reactive Si relative to reactive P and total N, in response to the rapid pace at which new hydroelectric dams are being built.

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Derived From: http://globaldamwatch.org/data/

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Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
Natural Sciences and Engineering Research Council of Canada PDF-516575-2018
Canada Excellence Research Chairs Program

How to Cite

Maavara, T., Z. Akbarzadeh, P. V. Cappellen (2020). Global dam-driven changes to riverine N:P:Si ratios delivered to the coastal ocean: Data Set S1, HydroShare, http://www.hydroshare.org/resource/aa2a766e93814da68147272f65a007b6

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