Influence of Landscape and Cropping System on Phosphorus Mobility within the Pike River Watershed of Southwestern Quebec: Model Parameterization and Validation

Deslandes, J.; Beaudin, Isabelle; Michaud, A.; Bonn, F.; Madramootoo, Chandra A.

doi:10.4296/cwrj3201021

Cited by 16 publications

(25 citation statements)

References 24 publications

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“…A similar study by Deslandes et al (2007) at the watershed scale confirmed the reliability of SWAT2000 at simulating annual and seasonal sediments, TP and NO 3 ( loads, despite some difficulties at correctly simulating the magnitude of runoff and streamflow events during winter and spring when temperatures were near 08C.…”

Section: Swat Modellingmentioning

confidence: 54%

“…SWAT (Arnold et al 1998) has the ability to simulate the hydrologic response of large, heterogeneous, and agriculturally intensive watersheds, based on sound conceptual and physical foundations (Borah et al 2002;Borah and Bera 2003;Deslandes et al 2007) and was used several times within the studied watershed. Gollamudi et al (2007) and Eastmann et al (2010) tested the performance of SWAT2000 at simulating the hydrology, sediments, and nutrient losses from four fields within the Pike River watershed and observed that the model had some difficulties partitioning surface runoff and subsurface flow during high flows, which impeded its ability to achieve high performances in simulating sediments, particulate P, dissolved P, and TN exports.…”

Section: Swat Modellingmentioning

confidence: 99%

“…Data for the spatial parameterization of the SWATqc was retrieved from Deslandes et al (2007) and transferred from SWAT2000 to a SWAT2005 platform (Arnold et al 1998; http://swatmodel.tamu.edu/contact/). Spatial data (Land use map of July 1999, soils maps, and Digital Elevation Model) entry into SWAT was done through a graphical ArcSWAT interface linked to Arcview 3.3 (ESRI, Redlands CA, http://www.esri.com/).…”

Section: Swat Modellingmentioning

confidence: 99%

“…Organic and inorganic fertilizer applications were kept as originally set by Deslandes et al (2007) and Michaud et al (2007). The methodology used to parameterize individual HRUs' nutrient inputs and crop uptakes has been initially developed by Deslandes et al (2004) (2008) and temporal distribution of rainfall events. As such, field operation managements were the same throughout all simulations but their schedule differed among years following rainfall patterns during the calibration and validation period.…”

Section: Canadian Journal Of Soil Sciencementioning

confidence: 99%

“…Michaud et al (2004a) estimated daily loadings in sediments, TP, and TN with concentrationÁdischarge rating curves established for three streamflow ranges using Flux 5.0 (Walker 1998). These same loads were used to calibrate SWAT first model of the Pike River by Deslandes et al (2007), who explained that ''The coefficients of variation of load estimates remained within acceptable limits for the modelling of small tributaries (Walker 1998). An inspection of regression residuals for concentrationÁ discharge and loadÁdischarge relationships demonstrated the independence of residuals with respect to discharge, date, season, concentration and load.…”

Section: Canadian Journal Of Soil Sciencementioning

confidence: 99%

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Impacts of climate change on nutrient losses from the Pike River watershed of southern Québec

et al. 2015

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. 2015. Impacts of climate change on nutrient losses from the Pike River watershed of southern Que´bec. Can. J. Soil Sci. 95: 337Á358. The impacts of climate change on water quality in the Pike River watershed, an important contributor of nutrient loads into the northern arm of Lake Champlain, were simulated for the time horizon 2041Á2070. Four water quality scenarios were simulated using a calibrated version of the Soil and Water Assessment Tool (SWAT) customized to Que´bec agroclimatic conditions. Three of the scenarios were generated using climate data simulated with the Fourth-generation Canadian Regional Climate Model (CRCM4). The fourth scenario was generated using the climate simulated with the Arpege Regional Climate Model. Potential mean climate-induced changes in sediment, phosphorus, and nitrogen yield projected by these scenarios were then analyzed for the 2050 horizon. In addition, the impacts of the different sources of climate projection uncertainty were assessed by comparing climate model initial conditions, and climate model physical structure effects on the hydrochemical projections. Only one climate scenario projected a significant increase in mean annual total phosphorus [10 metrics tons (t) yr (1 or 14%] and total nitrogen (260 t yr (1 or 17%) loads. However, when shorter time spans (seasonal and monthly scales) were considered, several significant changes were detected, especially in winter. Sediment and nutrient loadings, in winter, were predicted to become three to four times higher than current levels. These increases were attributed to a greater vulnerability of soils to erosion in winter due to the decrease in the snowpack, early onset of spring snowmelt, a greater number of rainfall events, and snowmelt episodes caused by higher winter and spring temperatures.

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Section: Swat Modellingmentioning

confidence: 54%

Section: Swat Modellingmentioning

confidence: 99%

Section: Swat Modellingmentioning

confidence: 99%

Section: Canadian Journal Of Soil Sciencementioning

confidence: 99%

Section: Canadian Journal Of Soil Sciencementioning

confidence: 99%

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Impacts of climate change on nutrient losses from the Pike River watershed of southern Québec

et al. 2015

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Watershed Model Parameter Estimation in Low Data Environments

Garna

Fuka

White

et al. 2021

Preprint

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Watershed models are essential for evaluating the impact of watershed management; however, they contain many parameters that are not directly measurable. These parameters are commonly estimated by calibration against observed data, often streamflow. Unfortunately, many areas lack long-term streamflow records, making parameter estimation in low data environments (LDE) challenging. A new calibration technique, simultaneous multi-basin calibration (MBC), was developed to estimate model parameters in LDE. Three Soil and Water Assessment Tool (SWAT) model initializations for USGS gages with ~ 2-year records in the Lake Champlain Basin of Vermont, USA, were evaluated by comparing MBC and the commonly used similarity-based regionalization (SBR) approach, where calibrated parameters from a watershed with an extended data record are transferred to the LDE receptor watersheds. In MBC, each watershed is initialized, and observed flows from each initialization are aggregated to generate a combined streamflow record of sufficient length to calibrate using a differential evolution algorithm. New hydrological insights for the region: Using this new MBC method, we demonstrate improved model performance and more realistic model parameter values. This study demonstrates that short periods of hydrological measurement from multiple locations in a basin can represent a system similarly to long term measurements and that even short records taken at multiple locations significantly improve our hydrologic knowledge of a system as compared to relying on the similarity of a basin with a long record of flow. In addition, this study revealed that the hydrologic response is mediated by the interplay of very low soil-saturated hydraulic conductivity (Ksat) and cracking soils. As a result, even if Ksat is very low, cracking clays have a large impact on runoff production Garna et al. (2022). IntroductionWatershed scale hydrological models are often used to quantify and predict diverse and complicated hydrologic system behavior and are often used to manage environmental and water resources. A process based hydrological model consists of equations and parameters that describe watershed processes such as snow accumulation, groundwater flow, runoff generation, and

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Modeling the Impacts of Spatial Heterogeneity in the Castor Watershed on Runoff, Sediment, and Phosphorus Loss Using SWAT: I. Impacts of Spatial Variability of Soil Properties

Boluwade

Madramootoo

2013

Water Air Soil Pollut

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Spatial accuracy of hydrologic modeling inputs influences the output from hydrologic models. A pertinent question is to know the optimal level of soil sampling or how many soil samples are needed for model input, in order to improve model predictions. In this study, measured soil properties were clustered into five different configurations as inputs to the Soil and Water Assessment Tool (SWAT) simulation of the Castor River watershed (11-km2 area) in southern Quebec, Canada. SWAT is a process-based model that predicts the impacts of climate and land use management on water yield, sediment, and nutrient fluxes. SWAT requires geographical information system inputs such as the digital elevation model as well as soil and land use maps. Mean values of soil properties are used in soil polygons (soil series); thus, the spatial variability of these properties is neglected. The primary objective of this study was to quantify the impacts of spatial variability of soil properties on the prediction of runoff, sediment, and total phosphorus using SWAT. The spatial clustering of the measured soil properties was undertaken using the regionalized with dynamically constrained agglomerative clustering and partitioning method. Measured soil data were clustered into 5, 10, 15, 20, and 24 heterogeneous regions. Soil data from the Castor watershed which have been used in previous studies was also set up and termed “Reference”. Overall, there was no significant difference in runoff simulation across the five configurations including the reference. This may be attributable to SWAT's use of the soil conservation service curve number method in flow simulation. Therefore having high spatial resolution inputs for soil data may not necessarily improve predictions when they are used in hydrologic modeling.

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Influence of Landscape and Cropping System on Phosphorus Mobility within the Pike River Watershed of Southwestern Quebec: Model Parameterization and Validation

Cited by 16 publications

References 24 publications

Impacts of climate change on nutrient losses from the Pike River watershed of southern Québec

Impacts of climate change on nutrient losses from the Pike River watershed of southern Québec

Watershed Model Parameter Estimation in Low Data Environments

Modeling the Impacts of Spatial Heterogeneity in the Castor Watershed on Runoff, Sediment, and Phosphorus Loss Using SWAT: I. Impacts of Spatial Variability of Soil Properties

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