Prolegomena to sediment and flow connectivity in the landscape: A GIS and field numerical assessment

Borselli, L.; Cassi, Paola; Torri, Dino

doi:10.1016/j.catena.2008.07.006

Cited by 662 publications

(662 citation statements)

References 19 publications

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“…The concept of connectivity has increasingly been used in quantitative process-based sediment dynamics research, especially at catchment scales (Ali et al, 2014;Baartman et al, 2013;Bracken and Croke, 2007;Bracken et al, 2015;Brierley et al, 2006;Cavalli et al, 2013;Fryirs et al, 2007;Heckmann and Schwanghart, 2013;Lexartza-Artza and Wainwright, 2011;López-Vicente et al, 2013;Wainwright et al, 2011). Geomorphology has been considered as a major driver on determining sediment connectivity (Heckmann and Schwanghart, 2013;Theler et al, 2010), and geomorphometric indices have increasingly been developed to assess it (Borselli et al, 2008;Cavalli et al, 2013;López-Vicente et al, 2013;Reid et al, 2007;Sougnez et al, 2011). In this study we applied the index of connectivity (IC) as proposed by Cavalli et al (2013) based on the work of Borselli et al (2008), to evaluate the potential effect of sediment connectivity within the plots.…”

Section: Sediment Connectivitymentioning

confidence: 99%

“…Geomorphology has been considered as a major driver on determining sediment connectivity (Heckmann and Schwanghart, 2013;Theler et al, 2010), and geomorphometric indices have increasingly been developed to assess it (Borselli et al, 2008;Cavalli et al, 2013;López-Vicente et al, 2013;Reid et al, 2007;Sougnez et al, 2011). In this study we applied the index of connectivity (IC) as proposed by Cavalli et al (2013) based on the work of Borselli et al (2008), to evaluate the potential effect of sediment connectivity within the plots. The reasons for this choice relied on the facts that the IC (i) is a distributed geomorphometric index that can be easily derived from a DEM, (ii) can be computed with reference to specific target features, and (iii) has been adapted for high-resolution DEMs.…”

Section: Sediment Connectivitymentioning

confidence: 99%

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Rainfall simulation and Structure-from-Motion photogrammetry for the analysis of soil water erosion in Mediterranean vineyards

Prosdocimi

Burguet

Prima

et al. 2017

Science of The Total Environment

102

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Soil water erosion is a serious problem, especially in agricultural lands. Among these, vineyards deserve attention, because they constitute for the Mediterranean areas a type of land use affected by high soil losses. A significant problem related to the study of soil water erosion in these areas consists in the lack of a standardized procedure of collecting data and reporting results, mainly due to a variability among the measurement methods applied. Given this issue and the seriousness of soil water erosion in Mediterranean vineyards, this works aims to quantify the soil losses caused by simulated rainstorms, and compare them with each other depending on two different methodologies: (i) rainfall simulation and (ii) surface elevation change-based, relying on high-resolution Digital Elevation Models (DEMs) derived from a photogrammetric technique (Structure-from-Motion or SfM). The experiments were carried out in a typical Mediterranean vineyard, located in eastern Spain, at very fine scales. SfM data were obtained from one reflex camera and a smartphone built-in camera. An index of sediment connectivity was also applied to evaluate the potential effect of connectivity within the plots. DEMs derived from the smartphone and the reflex camera were comparable with each other in terms of accuracy and capability of estimating soil loss. Furthermore, soil loss estimated with the surface elevation change-based method resulted to be Contents lists available at ScienceDirectScience of the Total Environment j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / s c i t o t e n v of the same order of magnitude of that one obtained with rainfall simulation, as long as the sediment connectivity within the plot was considered. High-resolution topography derived from SfM revealed to be essential in the sediment connectivity analysis and, therefore, in the estimation of eroded materials, when comparing them to those derived from the rainfall simulation methodology. The fact that smartphones built-in cameras could produce as much satisfying results as those derived from reflex cameras is a high value added for using SfM.

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Section: Sediment Connectivitymentioning

confidence: 99%

Section: Sediment Connectivitymentioning

confidence: 99%

Rainfall simulation and Structure-from-Motion photogrammetry for the analysis of soil water erosion in Mediterranean vineyards

Prosdocimi

Burguet

Prima

et al. 2017

Science of The Total Environment

102

View full text Add to dashboard Cite

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“…The role of vegetation in slope stability is variable but can be of a great importance (Greenway, 1987) by diminishing rain-drop impact and runoff and by stabilising non-consolidated sediments through the effect of the root system. Hence, vegetation may contribute to disconnect sediment transfer between upstream and downstream areas (Borselli et al, 2008). Generally, alpine watersheds span from densely forested areas to vegetation-free slopes and channels, passing through sparsely vegetated areas.…”

Section: Activity Of Sediment Storagesmentioning

confidence: 99%

“…Sediment connectivity was recently studied by Heckmann et al (2009) and Borselli et al (2008), who developed two connectivity indices based on a GIS and raster-based approach and on field survey, respectively. The connectivity of the sediment sources with the main channel has a relevant importance in the evaluation of the volume of sediments potentially mobilised during a debris-flow event (Zimmermann et al, 1997) and is often correlated with the hydrological connectivity (Croke et al, 2005;Borselli et al, 2008;Michaelides and Chappell, 2008).…”

Section: Connectivitymentioning

confidence: 99%

The contribution of geomorphological mapping to sediment transfer evaluation in small alpine catchments

et al. 2010

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The assessment of sediment transfer processes is necessary to understand the hydro-geomorphological functioning of small alpine watersheds prone to channelised debris flows because their occurrence often depends on the amount of debris available in the gully systems. Therefore, sediment budgets should be studied through the identification of erosion, transport and deposition processes. Sediment transfer processes were investigated in a small catchment by field measurements and, more specifically, through the application of a process-based geomorphological mapping method. The proposed methodology is based on data directly derived from GIS analysis using high-resolution DEM, field measurements and aerial photograph interpretations. It has been conceived to estimate sediment transfer dynamics, taking into account the role of different sediment stores in the torrential system. The proposed geomorphological mapping methodology is quite innovative in comparison with most legend systems that are not adequate for mapping comprehensively active and complex geomorphological systems such as debris-flow catchments. Maps representing the various sediment storages and their relationships can be used for hydro-geomorphological hazard mitigation.

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“…While functional connectivity expresses flows and fluxes in time, structural connectivity is a (pseudo)static catchment characteristic, at least for the duration of a rainstorm. Borselli et al (2008) express structural connectivity as a spatial index that combines a characterisation of a point's contributing area with its downstream pathway to a sink area, e.g. the stream network.…”

Section: Introductionmentioning

confidence: 99%

Applying profile- and catchment-based mathematical models for evaluating the run-off from a Nordic catchment

Farkas

Kværnø

Engebretsen

et al. 2016

Journal of Hydrology and Hydromechanics

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Knowledge of hydrological processes and water balance elements are important for climate adaptive water management as well as for introducing mitigation measures aiming to improve surface water quality. Mathematical models have the potential to estimate changes in hydrological processes under changing climatic or land use conditions. These models, indeed, need careful calibration and testing before being applied in decision making. The aim of this study was to compare the capability of five different hydrological models to predict the runoff and the soil water balance elements of a small catchment in Norway. The models were harmonised and calibrated against the same data set. In overall, a good agreement between the measured and simulated runoff was obtained for the different models when integrating the results over a week or longer periods. Model simulations indicate that forest appears to be very important for the water balance in the catchment, and that there is a lack of information on land use specific water balance elements. We concluded that joint application of hydrological models serves as a good background for ensemble modelling of water transport processes within a catchment and can highlight the uncertainty of models forecast.

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Prolegomena to sediment and flow connectivity in the landscape: A GIS and field numerical assessment

Cited by 662 publications

References 19 publications

Rainfall simulation and Structure-from-Motion photogrammetry for the analysis of soil water erosion in Mediterranean vineyards

Rainfall simulation and Structure-from-Motion photogrammetry for the analysis of soil water erosion in Mediterranean vineyards

The contribution of geomorphological mapping to sediment transfer evaluation in small alpine catchments

Applying profile- and catchment-based mathematical models for evaluating the run-off from a Nordic catchment

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