Impact of current riparian land on sediment retention in the Danube River Basin

Vigiak, Olga; Malagó, Anna; Bouraoui, F.; Grizzetti, Bruna; Weissteiner, Christof J.; Pastori, Marco

doi:10.1016/j.swaqe.2016.08.001

Cited by 46 publications

(34 citation statements)

References 51 publications

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“…In IR0, simulated lake volume oscillated mostly around the PV level because, in this method, the reservoir releases water whenever volume exceeds the PV (Figure 8; Equations 6-7, Table S3.1). This method, along with included impoundment calibration, was successfully applied in streamflow and sediment simulation by Vigiak et al (2016). The Average Annual Release Rate Method, with uncalibrated impoundment parameters, was used by Brauer et al (2015) in streamflow simulation and by Wang and Xia (2010), where the IR0 simulation was used with applied code modifications.…”

Section: Evaluation Of Reservoir Outflow Methodsmentioning

confidence: 99%

“…In previous studies, SWAT ITs were used to model a constructed wetland placement effect on water quality (Wang et al 2008); wetlands' influence on flood mitigation, peak-flow reduction through wetland water retention, and increased evapotranspiration (Demissie and Khan 1993;Hattermann et al 2006;Babbar-Sebens et al 2013); and to simulate nutrient retention in natural and constructed wetlands (White and Bayley 2001;Vache et al 2002;Cooper 2009). SWAT ITs were also used to estimate sediment and nutrient retention in reservoirs (Mishra et al 2007;Bosch 2008;Liu et al 2014); to assess dam and check dam impact on local water, sediment, and nutrient yields (Mishra et al 2007;Ouyang et al 2011;Zhang et al 2011;Liu et al 2014;Norman and Niraula 2016); to model reservoir placement feasibility (Zhang et al 2012); to calculate reservoir water availability for municipal purposes (Brauer et al 2015); and to model and account for reservoir influence in SWAT modeling (Kirsch et al 2002;Bosch 2008;Wang and Xia 2010;Liu et al 2016;Vigiak et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of SWAT Impoundment Modeling Methods in Water and Sediment Simulations

Jalowska

Yuan

2018

J American Water Resour Assoc

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Worldwide studies show 80%–90% of all sediments eroded from watersheds is trapped within river networks such as reservoirs, ponds, and wetlands. To represent the impact of impoundments on sediment routing in watershed modeling, Soil and Water Assessment Tool (SWAT) developers recommend to model reservoirs, ponds, and wetlands using impoundment tools (ITs). This study evaluates performance of SWAT ITs in the modeling of a small, agricultural watershed dominated by lakes and wetlands. The study demonstrates how to incorporate impoundments into the SWAT model, and discusses and evaluates involved parameters. The study then recommends an appropriate calibration sequence, i.e., landscape parameters calibration, followed by pond/wetlands calibration, then channel parameter calibrations, and lastly, reservoir parameter calibration. Results of this study demonstrate not following SWAT recommendation regarding modeling water land use as an impoundment depreciates SWAT performance, and may lead to misplaced calibration efforts and model over‐calibration. Further, the chosen method to model impoundments’ outflow significantly impacts sediment loads in the watershed, while streamflow simulation is not very sensitive. This study also allowed calculation of mass accumulation rates in modeled impoundments where the annual mass accumulation rate in wetlands (2.3 T/ha/yr) was 39% higher than mass accumulation rate in reservoirs (1.4 T/ha/yr).

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Section: Evaluation Of Reservoir Outflow Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of SWAT Impoundment Modeling Methods in Water and Sediment Simulations

Jalowska

Yuan

2018

J American Water Resour Assoc

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“…Watershed management can play an important role in protecting soil and water (Abdelwahab, Bingner, Milillo, & Gentile, ; Bisantino, Bingner, Chouaib, Gentile, & Trisorio Liuzzi, ; Nikolaidis, Bouraoui, & Bidoglio, ); however, before identifying specific conservation and best management practices (BMPs) in order to mitigate soil depletion, there is a need to quantify erosion and identify the source zones of such sediment in the watershed (Abdelwahab, Bingner, Milillo, & Gentile, ; Asres & Awulachew, ; Vigiak et al, ).…”

Section: Introductionmentioning

confidence: 99%

Identifying sediment source areas in a Mediterranean watershed using the SWAT model

et al. 2018

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This study aims to evaluate the suitability of the Soil and Water Assessment Tool model in simulating runoff and sediment loss in the Carapelle (SE Italy), a typical Mediterranean watershed, where continuous measurements of streamflow and sediment concentration were collected over a 5‐year period, on a half‐hour timescale, processed on a daily timescale. After sensitivity analysis, the model was calibrated and validated for runoff and sediment. Statistics show generally satisfactory efficiency. To further improve sediment simulation performance, we used a seasonal calibration scheme, in which data recorded in the dry and wet seasons were used to calibrate sediments separately, on a seasonal basis. We also tested the model's capability in identifying the major sediment source zones and river segments where there is sediment deposition. On the basin scale, the average water yield (186 mm) corresponds to 27% of the total rainfall (686 mm), and average annual sediment load was estimated to be 6.8 t ha−1 year−1. On the subbasin scale, a gradient of sediment yield was found that is characterised by a large difference among the upper (7 to 13 t ha−1 year−1), central, and lower parts (<1 t ha−1 year−1) of the study area. Conversely, deposition in channel flow has its highest values in the central part of the watershed, where there is an alluvial plain. Winter wheat and olive land use are the major source areas, in terms of sediment. This study confirms that the Mediterranean watershed is a fragile ecosystem, and measures are needed to mitigate soil depletion.

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“…Riparian areas are defined as the interface between land and freshwater ecosystems and are characterized by distinctive soil, hydrology, and biotic conditions (Naiman et al, ). Riparian areas have been widely recognized for decades as having great potential to accomplish specific ecological functions such as alleviating agricultural run‐off, promoting nutrient cycling and retention, flooding control, or stream shading (Malanson, ; Vigiak et al, ; Wenger, ; Zaimes, Nichols, Green, & Crimmins, ). However, due to the lack of a universal definition of “riparian” and development of holistic classification systems (Naiman, Decamps, & McClain, ; Verry, Dolloff, & Manning, ), their spatial complexity within the landscape as transitional zones and their sensitivity to disturbance have made their integration for management and delineation challenging.…”

Section: Introductionmentioning

confidence: 99%

Delineating and mapping riparian areas for ecosystem service assessment

et al. 2017

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Riparian buffers, the interface between terrestrial and freshwater ecosystems, have the potential to protect water bodies from land‐based pollution, and also for enhancing the delivery of a range of ecosystem services. The UK currently has no defined optimal width or maximum extent of riparian buffers for specific ecosystem services. Here, we present the first study, which attempts to (a) compare and critique different riparian buffer delineation methods and (b) investigate how ecological processes, for example, pollutant removal, nutrient cycling, and water temperature regulation, are affected spatially by proximity to the river and also within a riparian buffer zone. Our results have led to the development of new concepts for riparian delineation based on ecosystem service‐specific scenarios. Results from our study suggest that choice of delineation method will influence not only the total area of potential riparian buffers but also the proportion of land cover types included, which in turn will determine their main ecosystem provision. Thus, for some ecological processes (e.g., pollutant removal), a fixed‐distance approach will preserve and protect its ecosystem function, whereas for processes such as denitrification, a variable‐width buffer will reflect better riparian spatial variability maximizing its ecological value. In summary, riparian delineation within UK habitats should be specific to the particular ecosystem service(s) of interest (e.g., uptake of nutrients and shading), and the effectiveness of the buffer should be ground‐truthed to ensure the greatest level of protection.

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Impact of current riparian land on sediment retention in the Danube River Basin

Cited by 46 publications

References 51 publications

Evaluation of SWAT Impoundment Modeling Methods in Water and Sediment Simulations

Evaluation of SWAT Impoundment Modeling Methods in Water and Sediment Simulations

Identifying sediment source areas in a Mediterranean watershed using the SWAT model

Delineating and mapping riparian areas for ecosystem service assessment

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