Modelling of an Agricultural Watershed using Remote Sensing and a Geographic Information System

Pandey, Vinay Kumar; Panda, Sudhindra N.; Sudhakar, S.

doi:10.1016/j.biosystemseng.2004.10.001

Cited by 41 publications

(23 citation statements)

References 11 publications

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“…Reduction of soil tillage intensity or implementation of conservation practices can positively affect numerous soil properties, such as aggregate stability, macroporosity and saturated hydraulic conductivity which increases infiltration rates and reduces surface runoff, nutrient loss and soil erosion (Jones et al, 1969;Pitkänen and Nuutinen, 1998;Schmidt et al, 2001;Kirsch et al, 2002;Pandey et al, 2005;Tripathi et al, 2005). The modification of soil tillage can be realized in the model by the adaptation of the C factor.…”

Section: Soil Conservation Practices On Agricultural Landmentioning

confidence: 99%

A pragmatic approach for soil erosion risk assessment within policy hierarchies

Völk

Möller²,

Wurbs³

2010

Land Use Policy

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Section: Soil Conservation Practices On Agricultural Landmentioning

confidence: 99%

A pragmatic approach for soil erosion risk assessment within policy hierarchies

Völk

Möller²,

Wurbs³

2010

Land Use Policy

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“…It is an operational or conceptual model that operates on a daily time step. Many studies world-wide have used SWAT for evaluating the impact of land use scenarios and management practices on water quality (Saleh et al, 2000;Santi et al, 2001;Vaché et al, 2002;Chaplot et al, 2004;Pandey et al, 2005;Tripathi et al, 2005;Behera and Panda, 2006;Santhi et al, 2006;Gassman et al, 2007). SWAT uses readily available inputs, has the capability of routing runoff and chemicals through streams and reservoirs, and allows for the addition of flows and the inclusion of measured data from point sources.…”

Section: Model Descriptionmentioning

confidence: 99%

Towards the implementation of the European Water Framework Directive?

2009

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“…The model is interfaced with ArcGIS-ArcView extension software that helps to automate data entry, communication, and editing between GIS and the hydrologic model (Pandey et al 2005). This application, known as ArcSWAT, allows easy pre-and post-processing of spatially distributed input data (Romanowicz et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Modeling of Pathogen Indicator Organisms in a Small-Scale Agricultural Catchment Using SWAT

Coffey

Dorai-Raj

O'Flaherty

et al. 2012

Human and Ecological Risk Assessment: An International Journal

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Degradation of water quality from microbial contaminants associated with agricultural activities has significant implications for source protection of potable water. Novel environmental approaches must be adopted to assess risks from waterborne pathogenic microbes. The objective of this study was to evaluate applicability of the Soil and Water Assessment Tool (SWAT) to predict daily concentrations of E. coli in a small-scale agricultural catchment in Ireland. The study area is based on the Kilshanvey catchment located in the west of Ireland. E. coli data (n = 25) from June 2006 to June 2007 were utilized for comparison with the model's predictions. Statistical analysis indicates an unsatisfactory to fair level of correlation for the model's predictions (R 2 = 0.03-0.35, NSE = -0.42-0.29). A sensitivity analysis identified direct stream deposition and die-off rates for E. coli as having a significant impact on the model's predictions. Our results suggest that the model is adequate to assess the magnitude of various microbial sources within catchments but capability to replicate daily observations is uncertain. However, model outputs could provide adequate data to develop a human exposure assessment to pathogen indicator organisms in surface water and assist policy-makers in developing appropriate risk management strategies.

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Modelling of an Agricultural Watershed using Remote Sensing and a Geographic Information System

Cited by 41 publications

References 11 publications

A pragmatic approach for soil erosion risk assessment within policy hierarchies

A pragmatic approach for soil erosion risk assessment within policy hierarchies

Towards the implementation of the European Water Framework Directive?

Modeling of Pathogen Indicator Organisms in a Small-Scale Agricultural Catchment Using SWAT

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