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Titolo:
MANAGING PHOSPHORUS-BASED, CULTURAL EUTROPHICATION IN WETLANDS - A CONCEPTUAL-APPROACH
Autore:
LOWE EF; KEENAN LW;
Indirizzi:
ST JOHNS RIVER WATER MANAGEMENT DIST,POB 1429 PALATKA FL 32178
Titolo Testata:
Ecological engineering
fascicolo: 1-2, volume: 9, anno: 1997,
pagine: 109 - 118
SICI:
0925-8574(1997)9:1-2<109:MPCEIW>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
EVERGLADES; NUTRIENT; ACCUMULATION;
Keywords:
PHOSPHORUS; MODELING; WETLAND MANAGEMENT; EUTROPHICATION; MANAGEMENT CONCEPTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
E.F. Lowe e L.W. Keenan, "MANAGING PHOSPHORUS-BASED, CULTURAL EUTROPHICATION IN WETLANDS - A CONCEPTUAL-APPROACH", Ecological engineering, 9(1-2), 1997, pp. 109-118

Abstract

The literature relevant to phosphorus-based eutrophication in wetlands has focused on the effects of wetlands on inflowing phosphorus rather than the effects of inflowing phosphorus on the wetlands. Simple conceptual models of wetland eutrophication are needed to manage phosphorus loading to wetlands. The continuously stirred tank reactor (CSTR) model used for lakes, which predicts effects which are patternless and generalized, does not aptly describe eutrophication effects in wetlands, which are patterned and localized. We propose a simple conceptual model for wetland eutrophication, the thin leaky sponge (TLS), and use a first-order, plug flow reactor model to describe the steady-slate pattern of decrease in the phosphorus concentration of inflows as a function of time. The model predicts the area affected by phosphorus loading above the background level. Two threshold concentrations of phosphorus, P-s and P-w, are used to predict the areas of four zones: the strong effects, weak effects, total effects, and no effects zones. We propose that eutrophication of wetlands can appropriately be managed through management of the phosphorus load in order to limit the sizes of these zones. By predicting the areas of these zones, the TLS model predicts the area of wetland at risk from the modeled inflow. (C) 1997 Elsevier Science B.V.

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Documento generato il 19/09/20 alle ore 07:53:43