Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter
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TY - CHAP
T1 - The exchange of phosphorus between riparian wetland sediments, pore water and surface water
AU - Surridge, B.
AU - Heathwaite, A. L.ouise
AU - Baird, A.
N1 - The exchange of phosphorus between riparian wetland sediments, pore water and surface water
PY - 2005
Y1 - 2005
N2 - Phosphorus (P) is generally viewed as the main element driving eutrophication risk in freshwaters. In this paper we examine the release of P from riparian wetland sediments to pore water and surface water. The research was conducted at Strumpshaw Fen in the Norfolk Broads region of the UK. We show that substantial quantities of bioavailable P may be released into solution from the sediments at Strumpshaw Fen. This release is physicochemically controlled, and involves the reductive-dissolution of P complexed at the surface of ferric hydroxide. Maximum concentrations of molybdate-reactive P (MRP) in 0.45 m m filtered solutions can reach up to 1 mg l-1 P in surface water, and up to 4.5 mg l-1 P in pore water. Such high concentrations of MRP indicate that riparian wetlands may act as sources of P with the potential to threaten the chemical and ecological quality of receiving water bodies.
AB - Phosphorus (P) is generally viewed as the main element driving eutrophication risk in freshwaters. In this paper we examine the release of P from riparian wetland sediments to pore water and surface water. The research was conducted at Strumpshaw Fen in the Norfolk Broads region of the UK. We show that substantial quantities of bioavailable P may be released into solution from the sediments at Strumpshaw Fen. This release is physicochemically controlled, and involves the reductive-dissolution of P complexed at the surface of ferric hydroxide. Maximum concentrations of molybdate-reactive P (MRP) in 0.45 m m filtered solutions can reach up to 1 mg l-1 P in surface water, and up to 4.5 mg l-1 P in pore water. Such high concentrations of MRP indicate that riparian wetlands may act as sources of P with the potential to threaten the chemical and ecological quality of receiving water bodies.
KW - eutrophication
KW - iron
KW - Norfolk Broads, UK
KW - phosphorus
KW - Riparian wetlands
M3 - Chapter
SN - 1-901502-03-1
SP - 37
EP - 45
BT - Dynamics and Biogeochemistry of River corridors and Wetlands
A2 - Heathwaite, L
A2 - Webb, B
A2 - Rosenberry, D
A2 - Weaver, D
A2 - Hayash, M
PB - IAHS Publications
CY - Wallingford
ER -