Estimating long-term sediment export using a seasonal rainfall-dependent hydrological model in the Glonn River basin, Germany

Diodato, Nazzareno; Vente, Joris de; Bellocchi, Gianni; Guerriero, Luigi; Soriano, Marcella; Fiorillo, Francesco; Revellino, Paola; Guadagno, Francesco M.

doi:10.1016/j.geomorph.2014.10.011

Cited by 10 publications

(5 citation statements)

References 56 publications

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“…In particular, given the occurrence of multiple processes, the long-term constant ∆ cannot be easily calculated. The ∆ value estimated for the ARB with Equation (1), −132.660 Mg km −2 year −1 , is intermediate in the range of estimates (−44 to −235 Mg km −2 year −1 ), reported in previous studies [85][86][87], which is typical for moderate to high elevation ranges and slope gradients. The ARB has widely varying climatic and topographic features, with precipitations patterns ranging from about 1500 (in the lower basin near the outlet) to 6000 mm year −1 (in the south-western part of the basin near the Andes), and elevations ranging from sea level (the river's mouth) to~6500 m a.s.l.…”

Section: Discussion On the Rsda Modelcontrasting

confidence: 59%

The Rise of Climate-Driven Sediment Discharge in the Amazonian River Basin

et al. 2020

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The occurrence of hydrological extremes in the Amazon region and the associated sediment loss during rainfall events are key features in the global climate system. Climate extremes alter the sediment and carbon balance but the ecological consequences of such changes are poorly understood in this region. With the aim of examining the interactions between precipitation and landscape-scale controls of sediment export from the Amazon basin, we developed a parsimonious hydro-climatological model on a multi-year series (1997-2014) of sediment discharge data taken at the outlet of Óbidos (Brazil) watershed (the narrowest and swiftest part of the Amazon River). The calibrated model (correlation coefficient equal to 0.84) captured the sediment load variability of an independent dataset from a different watershed (the Magdalena River basin), and performed better than three alternative approaches. Our model captured the interdecadal variability and the long-term patterns of sediment export. In our reconstruction of yearly sediment discharge over 1859-2014, we observed that landscape erosion changes are mostly induced by single storm events, and result from coupled effects of droughts and storms over long time scales. By quantifying temporal variations in the sediment produced by weathering, this analysis enables a new understanding of the linkage between climate forcing and river response, which drives sediment dynamics in the Amazon basin.

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Section: Discussion On the Rsda Modelcontrasting

confidence: 59%

The Rise of Climate-Driven Sediment Discharge in the Amazonian River Basin

et al. 2020

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“…The classical soil erosion determination procedure of Wischmeier and Smith [40], the Universal Soil Loss Equation and its revised forms-(R)USLE [41]-or its WaTEM/SEDEM extension to continental scale [42] are applicable to the calculation of long-term mean annual erosion, but their use at basin level for estimating annual soil loss values from single storms has led to a reinterpretation of the original formulation [43]. This has allowed the identification of concepts for the development of parsimonious modelling solutions for sediment load assessment of river systems [44][45][46][47]. Given the issue of assessing erosive sediment by complex models in recognition of the detailed input for the historical period, we arranged a parsimonious erosion model adapted to the annual scale from the original algorithms of Foster et al [48] and Thornes [49] because they provide an interpretation of empirically determined factors shaping active erosional landscapes in basin areas based on the parsimonious balance between driving and resisting forces in the sediment budget [50,51].…”

Section: Plos Watermentioning

confidence: 99%

A framework for modelling emergent sediment loss in the Ombrone River Basin, central Italy

Diodato¹,

Ljungqvist

Fiorillo

et al. 2023

PLOS Water

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Water can represent a hazard causing soil erosion and it is essential to anticipate the potential environmental impacts of sustained rainwater energy to achieve sustainability. Here, we present the modelling of the erosive force of water for the production of soil sediment in a Mediterranean basin of central Italy (Ombrone River Basin, ORB). A point of departure is the historical recognition of the environmental factors causing sediments loss (SL) by water. A semi-empirical framework was then proposed for the upscaling of SL based on the Foster-Thornes approach (EUSEM: Environmental Upscaling Sediment Erosion Model) in order to give an insight into annual sediment losses (SL) over the period 1949–1977 (calibration) and over a longer time-frame (1942–2020: reconstruction). Two change-points were detected: 1967 and 1986. During this period, SL was affected by a sharp decrease from 625 Mg km-2 yr-1, before the first change-point (when SL was only occasionally below the tolerable soil loss threshold of 150 Mg km-2 yr-1), to 233 Mg km-2 yr-1, during the transition phase 1967–1985 (mostly above the warning treshold of 140 Mg km-2 yr-1). This decrease coincided with an enhancing of vegetation throughout the basin due to an ongoing afforestation process. After this period, a resurgence of climatic forcing led to a further, but more contained, increase in SL, from 1996 onwards. This case-study illustrates the application and results that can be obtained with the framework for the outcome of environmental change due to sediment losses in a Mediterranean fluvial basin. Limitations and perspectives of this approach are given as conclusion.

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“…As noted by Diodato et al (2015) the sources of sediment in rivers could be from all of erosion types which are surface, riil, inter riil, gully and streambank erosion. Contribution of streambank erosion on sediment yield is also observed by Rijsdijk et al (2007) At an annual basis, the non surface erosion contributes 8 to 119% of annual sediment yield (Rijsdijk et al, 2007).…”

Section: Sources Of Sediment In the Study Areasmentioning

confidence: 99%

Sediment yield and alternatives soil conservation practices of teak catchments

Basuki

2017

J.Degrade.Min.Land Manage.

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:Quantifying sediment is essential to determine its sources and reduce its negative impacts. A study was conducted to quantify suspended sediments of catchments covering by teak plantation and to provide alternatives soil conservation practices. Five catchments with old teak coverages of 82, 82, 74, 70, and 53 % were chosen. At the outlet of each catchment was installed tide gauge to monitor stream water level (SWL). Water samples for sediment analyses were taken for every increament of SWL. Sediment yield was calculated based on rating curves of sediment discharge. The results showed that the sources of sediment in the streams were dryland agricultural and streambank erosion. The mean annual sediment yield during the study were 9.3, 10, 15, 53.3, and 22.5 t/ha for catchments covered by old teak plantation of 82, 82, 74, 70, and 53 %, respectively. To reduce sediment yield some soil conservation practices must be applied. Conservation of soil organic matter is important in order to stabilize soil aggregate and prevent clay dispersion which causes erosion and sedimentation. Green firebreaks or making channels are needed to prevent fire during dry season and organic matter loss. Stabilization of streambank is neccesary, either using vegetative method or civil technics. Keywords: erosion, sediment, soil conservation, streambank erosion, teak plantationTo cite this article: Basuki, T.M. 2017. Sediment yield and alternatives soil conservation practices of teak catctments. J. Degrade. Min. Land Manage. 5(1): 965-973,

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Estimating long-term sediment export using a seasonal rainfall-dependent hydrological model in the Glonn River basin, Germany

Cited by 10 publications

References 56 publications

The Rise of Climate-Driven Sediment Discharge in the Amazonian River Basin

The Rise of Climate-Driven Sediment Discharge in the Amazonian River Basin

A framework for modelling emergent sediment loss in the Ombrone River Basin, central Italy

Sediment yield and alternatives soil conservation practices of teak catchments

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