Effects of afforestation on runoff and sediment load in an upland Mediterranean catchment

Buendía, Cristina; Bussi, Gianbattista; Tuset, Jordi; Vericat, Damià; Sabater, Sergi; Palau, Antoni; Batalla, Ramón J.

doi:10.1016/j.scitotenv.2015.07.005

Cited by 106 publications

(65 citation statements)

References 73 publications

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“…However, this widely-used method is empirically-based. Recent progresses in developing models using physically-based equations to describe surface soil loss and sediment routing may improve sediment yield simulating results [28,40,41]. Besides, obtaining long-term hydrological measurements could help to refine the model evaluation processes.…”

Section: Uncertainties In Runoff and Sediment Yield Modelingmentioning

confidence: 99%

Climate Change Impacts on Flow and Suspended Sediment Yield in Headwaters of High-Latitude Regions—A Case Study in China’s Far Northeast

Zhou

Xiao

et al. 2017

Water

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Climate change is expected to have stronger effects on water resources in higher latitude regions. Despite intensive research on possible hydrological responses in those regions to a warmer environment, our knowledge on erosion and sediment yield induced by the climate change in high-latitude headwaters is still limited. In this study, we estimated suspended sediment yields from 2021 to 2050 in a typical headwater area of far Northeast China to elucidate potential impacts of future climate change on surface runoff and erosion in higher latitude regions. We first parameterized the Soil and Water Assessment Tool (SWAT) using historical measurements to estimate runoff from the river basin. The model performed well in both the calibration (2006)(2007)(2008)(2009)(2010)(2011) and the validation (2012-2014) periods, with an R 2 of 0.85 and 0.88 and a Nash-Sutcliffe Efficiency (NSE) of 0.7 and 0.73, respectively. We also utilized historical measurements on sediment yields from the period 2006-2014 to develop a runoff-sediment yield rating curve, and the rating curve obtained an excellent goodness of fit (R 2 = 0.91, p < 0.001). We then applied the calibrated SWAT model to two climate change projections, also known as Representative Concentration Pathways (RCP4.5 and RCP8.5), for the period from 2021 to 2050 to obtain future runoff estimates. These runoff estimates were then used to predict future sediment yield by using the developed runoff-sediment yield rating curve. Our study found a significant increase of annual sediment yield (p < 0.05) for both climate change projections (RCP4.5 = 237%; RCP8.5 = 133%) in this, China's high-latitude region. The increases of sediment yield were prevalent in summer and autumn, varying from 102-299% between the two RCPs scenarios. Precipitation was the dominated factor that determined the variation of runoff and sediment yield. A warming climate could bring more snowmelt-induced spring runoff and longer rainy days in autumn, hence leading to higher erosion. These findings demonstrate that under the changing climate, soils in this high-latitude headwater area would be eroded twice to three times that of the baseline period , indicating a potential risk to the downstream water quality and reservoir management.

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Section: Uncertainties In Runoff and Sediment Yield Modelingmentioning

confidence: 99%

Climate Change Impacts on Flow and Suspended Sediment Yield in Headwaters of High-Latitude Regions—A Case Study in China’s Far Northeast

Zhou

Xiao

et al. 2017

Water

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“…These particularities will influence the production of sediment in the headwaters and, consequently the transfer of sediment downstream through channel networks. Moreover, land uses in the majority of the headwaters of Mediterranean mountain catchments have been changed since the middle of the twentieth century Llorens, 2001, 2004;Améztegui et al, 2010); a fact that will control the hydrological regime (García-Ruiz et al, 1997;Beguería et al, 2003;Buendia et al, 2015a and2015b) and the sediment delivery at different temporal and spatial scales (e.g. García-Ruiz et al, 1996, 1997Gallart et al, 2002;García-Ruiz et al, 2008;Lana-Renault et al, 2014;Buendia et al, 2015b).…”

Section: Introductionmentioning

confidence: 99%

Rainfall, runoff and sediment transport in a Mediterranean mountainous catchment

Tuset

Vericat

Batalla

2016

Science of The Total Environment

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“…The TETIS model (see Frances et al 2007 for a detailed overview), is a conceptual distributed model in which the main processes (soil water retention, infiltration, percolation, overland flow, interflow and aquifer flow) are represented by means of interconnected tanks (Buendia et al, 2015). The model was implemented on a 100m resolution grid, resampling the 50m digital terrain model from the British Ordnance Survey (digimap.edina.ac.uk) with a one-hour time-step.…”

Section: Flow Component Estimationmentioning

confidence: 99%

“…(2013), Buendia et al (2015) and Rodríguez-Lloveras et al (2015) . A local sensitivity analysis was carried out prior to the calibration stage in order to identify uninfluential parameters (such as the overland flow velocity) and discard them for calibration.…”

Section: Flow Component Estimationmentioning

confidence: 99%

During a winter of storms in a small UK catchment, hydrology and water quality responses follow a clear rural-urban gradient

McGrane

Hutchins

Miller

et al. 2017

Journal of Hydrology

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Please cite this article as: McGrane, S.J., Hutchins, M.G., Miller, J.D., Bussi, G., Kjeldsen, T.R., Loewenthal, M., During a winter of storms in a small UK catchment, hydrology and water quality responses follow a clear ruralurban gradient, Journal of Hydrology (2016), doi: http://dx.doi.org/10. 1016/j.jhydrol.2016.12.037 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. from the data do not appear to be severe enough to cause ecological harm.

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Effects of afforestation on runoff and sediment load in an upland Mediterranean catchment

Cited by 106 publications

References 73 publications

Climate Change Impacts on Flow and Suspended Sediment Yield in Headwaters of High-Latitude Regions—A Case Study in China’s Far Northeast

Climate Change Impacts on Flow and Suspended Sediment Yield in Headwaters of High-Latitude Regions—A Case Study in China’s Far Northeast

Rainfall, runoff and sediment transport in a Mediterranean mountainous catchment

During a winter of storms in a small UK catchment, hydrology and water quality responses follow a clear rural-urban gradient

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