The impact of Best Management Practices on simulated streamflow and sediment load in a Central Brazilian catchment

Strauch, Michael; Lima, Jorge Enoch Furquim Werneck; Völk, Martin; Lorz, Carsten; Makeschin, Franz

doi:10.1016/j.jenvman.2013.01.014

Cited by 115 publications

(104 citation statements)

References 37 publications

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“…This would make BMPs, such as crop management, tillage management, and fertilizer management, no longer functional in improving water quality in mainstreams, because whether or not the BMP is implemented, there would be no water in mainstreams. Similarly, extreme flooding conditions may override functionalities of some structural BMPs, such as terrace and filter strip (Strauch et al, 2013). Because these BMPs are designed for normal climate conditions, severe flooding may damage these structures and make these BMPs ineffective in minimizing erosion and NPS pollution from upland fields.…”

Section: Practices May Be No Longer Functionalmentioning

confidence: 99%

A Review and Discussion on Modeling and Assessing Agricultural Best Management Practices under Global Climate Change

Liu

Yang

Qin

et al. 2016

JSD

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Understanding the impacts of global climate change on the spatiotemporal pattern of hydrologic cycle and water resources is of major importance in highly developed watersheds all over the world. These impacts are strongly dependent on related changes in intensity and frequency of extreme climate events. Implementation of Best Management Practices (BMPs) and policy approaches at watershed and regional scales is essential for mitigating their negative impacts on soil and water conservation, and sustainable economic development. However, the uncertainty of BMP effectiveness including increasing variability of future water supply and changing magnitudes of nonpoint source pollution has to be accounted for in watershed planning and management. This paper provides a review and discussion on the impacts of global climate change on BMP's hydrologic performance, the current progress on hydrologic assessment of BMPs, as well as the existing problems and countermeasures. Research challenges and opportunities in the field of hydrologic assessment of BMPs under global climate change are also discussed in this paper.

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Section: Practices May Be No Longer Functionalmentioning

confidence: 99%

A Review and Discussion on Modeling and Assessing Agricultural Best Management Practices under Global Climate Change

Liu

Yang

Qin

et al. 2016

JSD

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“…Que, O. Seidou, R. L. Droste, G. Wilkes, M. Sunohara, E. Topp, and D. R. Lapen* G lobally, aquatic ecosystems are facing increasing pressures from nonpoint-source pollution coming from agricultural activities (Rabalais et al, 2002;Zhang et al, 2004;European Environment Agency, 2005;Michalak et al, 2013). However, there are many nonpoint source water pollution management practices capable of improving water quality in agriculturally dominated watersheds (Mostaghimi et al, 1997;Ice, 2004;Bracmort et al, 2006;Tuppad et al, 2010;Skaggs et al, 2012, Strauch et al, 2013. In many regions of North America and Europe, artificial subsurface (tile) drainage is widely used to improve field drainage for crop production.…”

Section: Using Annagnps To Predict the Effects Of Tile Drainage Contrmentioning

confidence: 99%

Using AnnAGNPS to Predict the Effects of Tile Drainage Control on Nutrient and Sediment Loads for a River Basin

et al. 2015

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Controlled tile drainage (CTD) can reduce pollutant loading. The Annualized Agricultural Nonpoint Source model (AnnAGNPS version 5.2) was used to examine changes in growing season discharge, sediment, nitrogen, and phosphorus loads due to CTD for a ~3900-km 2 agriculturally dominated river basin in Ontario, Canada. Two tile drain depth scenarios were examined in detail to mimic tile drainage control for flat cropland: 600 mm depth (CTD 600 ) and 200 mm (CTD 200 ) depth below surface. Summed for five growing seasons (CTD 600 ), direct runoff, total N, and dissolved N were reduced by 6.6, 3.5, and 13.7%, respectively. However, five seasons of summed total P, dissolved P, and total suspended solid loads increased as a result of CTD 600 by 0.96, 1.6, and 0.23%. The AnnAGNPS results were compared with mass fluxes observed from paired experimental watersheds (250, 470 ha) in the river basin. The "test" experimental watershed was dominated by CTD and the "reference" watershed by free drainage. Notwithstanding environmental/land use differences between the watersheds and basin, comparisons of seasonal observed and predicted discharge reductions were comparable in 100% of respective cases. Nutrient load comparisons were more consistent for dissolved, relative to particulate water quality endpoints. For one season under corn crop production, AnnAGNPS predicted a 55% decrease (CTD 600 ) in dissolved N from the basin. AnnAGNPS v. 5.2 treats P transport from a surface pool perspective, which is appropriate for many systems. However, for assessment of tile drainage management practices for relatively flat tile-dominated systems, AnnAGNPS may benefit from consideration of P and particulate transport in the subsurface.

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“…Among commonly used hydrological models nowadays, SWAT (Soil and Water Assessment Tool) has been extensively applied worldwide and in Brazil (ARNOLD et al, 2012). In Brazil, SWAT model was applied to estimate sediment yield (SANTOS; SCUDELARI; RIGHETTO, 2013), best management practices (STRAUCH et al, 2013) and hierarchical calibration (BRIGHENTI; BONUMÁ; CHAFFE, 2016). Bressiani et al (2015) identified 100 studies using the SWAT model between the years of 1999 and 2015 in Brazil.…”

Section: Introductionmentioning

confidence: 99%

Multi-variable SWAT model calibration with remotely sensed evapotranspiration and observed flow

Franco

Bonumá

2017

RBRH

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Although intrinsic, uncertainty for hydrological model estimation is not always reported. The aim of this study is to evaluate the use of satellite-based evapotranspiration on SWAT model calibration, regarding uncertainty and model performance in streamflow simulation. The SWAT model was calibrated in a monthly step and validated in monthly (streamflow and evapotranspiration) and daily steps (streamflow only). The validation and calibration period covers the years from 2006 to 2009 and the study area is the upper Negro river basin, situated in Santa Catarina and Paraná. SWAT-CUP was used to calibrate and validate the model, using SUFI-2 with KGE (Kling-Gupta Efficiency) as objective function. Different calibration strategies were evaluated, considering single-variable and multi-variable calibration, using streamflow and evapotranspiration. Compared to conventional single-variable calibration (streamflow only), multi-variable calibration (streamflow and evapotranspiration, simultaneously) produce better streamflow performance, especially for low flow periods and daily step validation. Despite that, no evidence of reduction of streamflow prediction uncertainty was observed. SWAT model calibration using solely evapotranspiration still requires further studies.Keywords: Uncertainty; METRIC; SUFI-2; Kling-Gupta Efficiency (KGE). RESUMOApesar de intrínseca, a incerteza das estimativas de modelos hidrológicos nem sempre é apresentada nos estudos relacionados. O presente trabalho procura avaliar o uso de evapotranspiração proveniente de sensoriamento remoto na calibração do modelo SWAT, em relação às incertezas e desempenho da simulação de vazão. O modelo SWAT foi calibrado em escala mensal e validado em escala mensal (vazão e evapotranspiração) e diária (somente vazão). O período de calibração e validação compreende os anos entre 2006 e 2009 e a área de estudo é a bacia hidrográfica do alto rio Negro, localizada nos estados de Santa Catarina e Paraná. As calibrações e validações foram realizadas no SWAT-CUP, pelo SUFI-2, utilizando como função objetivo o índice KGE (Kling-Gupta Efficiency). Diferentes estratégias de calibração foram avaliadas, considerando o uso individual e simultâneo (multi-variável) da vazão e evapotranspiração. Comparada com a calibração convencional (somente com dados de vazão), a calibração multi-variável (evapotranspiração + vazão) apresentou melhor desempenho da simulação de vazão, especialmente para baixas vazões e para validação em escala diária. Entretanto, a calibração multi-variável não foi capaz de evidenciar diminuição nas incertezas envolvidas nas estimativas de vazão. A calibração do modelo SWAT utilizando somente dados de evapotranspiração ainda depende da realização de mais estudos. Palavras-chave: Incertezas; METRIC; SUFI-2; Kling-Gupta Efficiency (KGE).RBRH, Porto Alegre, v. 22, e35, 2017Multi-variable SWAT model calibration with remotely sensed evapotranspiration and observed flow

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The impact of Best Management Practices on simulated streamflow and sediment load in a Central Brazilian catchment

Cited by 115 publications

References 37 publications

A Review and Discussion on Modeling and Assessing Agricultural Best Management Practices under Global Climate Change

A Review and Discussion on Modeling and Assessing Agricultural Best Management Practices under Global Climate Change

Using AnnAGNPS to Predict the Effects of Tile Drainage Control on Nutrient and Sediment Loads for a River Basin

Multi-variable SWAT model calibration with remotely sensed evapotranspiration and observed flow

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