2004
DOI: 10.1016/j.jhydrol.2004.02.018
|View full text |Cite
|
Sign up to set email alerts
|

Nutrient inputs to the coastal ocean through submarine groundwater discharge: controls and potential impact

Abstract: Nutrient input through submarine groundwater discharge (SGD) rivals river inputs in certain regions and may play a significant role in nutrient cycling and primary productivity in the coastal ocean. In this paper, we review the key factors determining the fluxes of nitrogen (N) and phosphorus (P) associated with SGD and present a compilation of measured rates. We show that, in particular, the water residence time and the redox conditions in coastal aquifers and sediments determine fluxes and ratios of N and P … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
5

Citation Types

14
569
2
7

Year Published

2006
2006
2018
2018

Publication Types

Select...
9
1

Relationship

1
9

Authors

Journals

citations
Cited by 811 publications
(616 citation statements)
references
References 128 publications
(183 reference statements)
14
569
2
7
Order By: Relevance
“…Expanding 21 residential and commercial near-shore development is leading to increased nutrient inputs 22 to groundwater that eventually migrate into to coastal waters. Several-decades long 23 research shows that nitrogen inputs via non-point sources over large coastline areas cause 24 decline of ecological health and may support harmful algal blooms (Valiela et al, 1990; 25 1992; Slomp and Van Cappellen, 2004; Lee and Kim, 2007;Umezawa et al, 2008). 26…”
Section: Introduction 18mentioning
confidence: 99%
“…Expanding 21 residential and commercial near-shore development is leading to increased nutrient inputs 22 to groundwater that eventually migrate into to coastal waters. Several-decades long 23 research shows that nitrogen inputs via non-point sources over large coastline areas cause 24 decline of ecological health and may support harmful algal blooms (Valiela et al, 1990; 25 1992; Slomp and Van Cappellen, 2004; Lee and Kim, 2007;Umezawa et al, 2008). 26…”
Section: Introduction 18mentioning
confidence: 99%
“…Submarine groundwater discharge (SGD) provides an important transport pathway for land-derived dissolved nutrients to coastal waters (Charette et al, 2001;Slomp and Van Cappellen, 2004). The chemical composition of SGD is not only determined by the terrestrial freshwater source(s), but also by the biogeochemical processes occurring along the groundwater flow path, particularly in the bsubterranean estuaryQ where freshwater and seawater mix (Moore, 1999).…”
Section: Introductionmentioning
confidence: 99%
“…Groundwater input to coral reefs has been shown to be globally important and carry a significant amount of terrestrially derived nutrients to the reef systems (D'Elia et al, 1981;Paytan et al, 2006;Houk et al, 2013). Groundwater discharge is usually enriched in N relative to P with an N : P ratio higher than the Redfield ratio, 16 : 1 (Redfield, 1960), because of more efficient immobilization of P than N in coastal aquifers (Slomp and Van Cappellen, 2004). Such groundwater characterized by a high N : P ratio thus could have significant impacts on coastal reef ecosystems, consid-ering that benthic marine plants are much more depleted in P, with an N : P ratio of about 30 : 1 (Atkinson and Smith, 1983).…”
Section: Introductionmentioning
confidence: 99%