The Effect of a Marsh on Runoff: I. A Water‐Budget Model

Huff, D.D.; Young, H. L.

doi:10.2134/jeq1980.00472425000900040019x

Cited by 15 publications

(8 citation statements)

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“…Detailed mechanistic models have been developed for specific systems such as a salt marsh (Pomeroy and Wiegert, 1981), freshwater wetland nutrient budget (Hopkinson and Day, 1980;Huff and Young, 1980;Kadlec and Hammer, 1988;Christensen et al, 1994), and lakes (Janse et al, 1992). For example, Janse et al (1992) developed a single compartment model with a high degree of complexity.…”

Section: Compartmental Mass Balance Modelsmentioning

confidence: 99%

Phosphorus Retention in Streams and Wetlands: A Review

Reddy

Kadlec

Flaig

et al. 1999

Critical Reviews in Environmental Science and Technology

850

605

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Copyright© 1999, CRC Press LLC -Files may be downloaded for personal use only. Reproduction of this material without the consent of the publisher is prohibited. 83Critical Reviews in Environmental Science and Technology, 29(1):83--146 (1999) ABSTRACT : Wetlands and streams buffer the interactions among uplands and adjacent aquatic systems. Phosphorus (P) is often the key nutrient found to be limiting in both estuarine and freshwater ecosystems. As such, the ability of wetlands and streams to retain P is key to determining downstream water quality. This article reviews the processes and factors regulating P retention in streams and wetlands and evaluates selected methodologies used to estimate P retention in these systems. Phosphorus retention mechanisms reviewed include uptake and release by vegetation, periphyton and microorganisms; sorption and exchange reactions with soils and sediments; chemical precipitation in the water column; and sedimentation and entrainment. These mechanisms exemplify the combined biological, physical, and chemical nature of P retention in wetlands and streams. Methodologies used to estimate P retention include empirical input-output analysis and mass balances, and process kinetics applied at various scales, including micro-and mesocosms to full-scale systems. Although complex numerical models are available to estimate P retention and transport, a simple understanding of P retention at the process level is important, but the overall picture provided by mass balance and kinetic evaluations are often more useful in estimating long-term P retention.

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Section: Compartmental Mass Balance Modelsmentioning

confidence: 99%

Phosphorus Retention in Streams and Wetlands: A Review

Reddy

Kadlec

Flaig

et al. 1999

Critical Reviews in Environmental Science and Technology

850

605

View full text Add to dashboard Cite

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“…Elle prend en compte les pertes par évaporation des plans d'eau, par évapotranspiration des parcelles, par drainage souterrain ou par écoulement superficiel, par diminution du stock d'eau du sol ; et pour les entrées, les précipitations ainsi que le débit d'alimentation de surface ou souterrain. La superficie des zones étudiées varie considérablement : de quelques hectares (RUTHERFORD et BYERS, 1973), (HUFF et YOUNG, 1980), voire quelques dizaines d'hectares (KADLEC, 1983), à plus de 1 000 ha (WOLTERS et ai, 1989). De même les méthodes d'estimation de chacun des termes du bilan sont très variables.…”

Section: Discussionunclassified

Bilan hydrologique d'un marais littoral à vocation agricole : Le marais de Moëze (Charente-Maritime, France)

Giraud¹,

Chevallier²,

Medion³

et al. 2005

rseau

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En France, les sécheresses consécutives des années 1985, 1986, 1989 et 1990 ont mis en lumière les problèmes relatifs à l'alimentation en eau potable, l'irrigation des terres agricoles et la préservation des écosystèmes aquatiques. Dans le cas des zones humides, continentales et littorales, caractérisées par une compartimentation hydraulique souvent complexe, le manque de connaissance se fait particulièrement sentir. Bien que de nombreux travaux aient permis d'évaluer l'évaporation des masses d'eau et l'évapotranspiration de certaines espèces d'hydrophytes et d'hélophytes, les études débouchant sur des bilans quantitatifs restent peu fréquentes. Le bilan hydrologique du marais de Moëze (2250 ha) a été calculé par décade entre le 11/06/89 et le 31/08/89. Il prend en compte le débit au droit de l'ouvrage d'alimentation, les volumes prélevés pour l'irrigation hors marais, les infiltrations et l'évapotransplration sur les 318 km de canaux. L'estimation de la consommation d'eau des parcelles est globalisée au niveau des mesures d'infiltration.Les pertes par infiltration sont secondaires (9,4 %) au regard des volumes prélevés pour l'irrigation (38,0 %) et évapotransplrés par les canaux (43,7 %) dont 51,1 % uniquement par les 28,6 % des plans d'eau colonisés par Typha latifolia.L'optimisation de la gestion estivale de l'eau d'un marais littoral agricole nécessite dans un premier temps de minimiser les pertes. C'est essentiellement sur la consommation d'eau des canaux colonisés par les hélophytes que l'on peut intervenir. Nous proposons un abaque qui permet d'évaluer l'importance des économies d'eau réalisées en fonction de plusieurs scénarios d'aménagement du réseau hydraulique.In France, the drought that occurred during the years 1985, 1986, 1989 and 1990 have emphazised the problems of freshwater supplies for human consumption, for irrigation and for the conservation of aquatic systems. Today the water has to be economized through a rationalized management. Water balance must be evaluated in order to compare supply an demand. Hydrological functioning is particularly badly known as far as continental and coastal wetlands are concerned, probably because of a generally very complex hydrological partition. Many papers deal with the evaporation rate from a clear water surface or the evapotranspiration rate from several species of hydrophytes and halophytes. However studies of quantitative water budgets of wetlands remain few in number.This paper reports an analysis of the budget summer water in that was a salt marsh now containing freshwater. The 25 km2 marsh of Moëze is located on the French Atlantic coast; it has been progressively constituted by filling up a tidal bay since the flandrien period. The soils correspond to fluvio-marine silts, locally called « bri » accumulated over several tens of meters thick. The marsh is bounded on the North by the ancient limestone coast, on the South by the Arnoult River, and on the West by the coastline. Its drainage network includes permanently flowing main canals and also small sil...

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“…In contrast to the substantial variations in monthly data discussed for site 1, interannual variations at site 7 appear to be small ( Figure 6). Overall, the bog appears to be a moderately interactive, weak-7 % % 5 % Ground-water inflow The Typha marsh (site 17, Gehrels and Mulamoottil 1990) and Lake Wingra wetland (site 18, Huff and Young 1980) were dominated by surface-water input and either ground-or surface-water output (Figures 7 and 8). Gehrels and Mulamoottil (1990) reported 1 year of seasonal data for the Typha marsh (Figure 7).…”

Section: S = (Qgwo + Qswo) -(Qgwi + Qswi)mentioning

confidence: 99%

“…Most annual variations were due to variations in surface-water input and output. Huff and Young (1980) reported 7 years of annual water-budget data for Lake Wingra wetland (Figure 8). Wingra Lake wetland was consistently defined as a surface-water input/ surface-water output wetland.…”

Section: S = (Qgwo + Qswo) -(Qgwi + Qswi)mentioning

confidence: 99%

Hydrologic indices for nontidal wetlands

et al. 1997

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Two sets of hydrologic indices were developed to characterize the water-budget components of nontidal wetlands. The first set consisted of six water-budget indices for input and output variables, and the second set consisted of two hydrologic interaction indices derived from the water-budget indices. The indices then were applied to 19 wetlands with previously published water-budget data. Two trilinear diagrams for each wetland were constructed, one for the three input indices and another for the three output indices. These two trilinear diagrams then were combined with a central quadrangle to form a Piper-type diagram, with data points from the tfilinear diagrams projected onto the quadrangle. The quadrangle then was divided into nine fields that summarized the wate~budget information. Two quantitative "interaction indices" were calculated from two of the six water-budget indices (precipitation and evapotranspiration). They also were obtained graphically from the water-budget indices, which were first projected to the central quadrangle of a Piper-type diagram from the flanking trilinear plots. The first interaction index (I) defines the strength of interaction between a wetland and the surrounding ground-and surface-water system. The second interaction index (S) defines the nature of the interaction between the wetland and the surrounding ground-and surfacewater system (source versus sink). Evaluation of these indices using published wetland water-budget data illustrates the usefulness of the technique.

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The Effect of a Marsh on Runoff: I. A Water‐Budget Model

Cited by 15 publications

References 0 publications

Phosphorus Retention in Streams and Wetlands: A Review

Phosphorus Retention in Streams and Wetlands: A Review

Bilan hydrologique d'un marais littoral à vocation agricole : Le marais de Moëze (Charente-Maritime, France)

Hydrologic indices for nontidal wetlands

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