Abstract
Purpose
Sediment connectivity at the landscape scale has gained interest in the last few decades. Distributed approaches, such as topographic indices, are widely used to evaluate this connectivity. However, most of the research efforts are concentrated in mountainous areas while little work has been done in lowland areas where evidence of high connectivity has been reported. The objectives of this study are as follows: (i) to integrate landscape infiltration/runoff properties in the assessment of connectivity to account for lowland processes and (ii) to apply this approach to a large territory with both mountainous and lowland areas.
Materials and methods
The topographic index of connectivity (IC) of Borselli et al. (2008) was computed for the Loire–Brittany River Basin (>105 km2). A distributed parameter (IDPR) that reflects landscape infiltration and saturation properties due to underlying geological formation characteristics is introduced. We integrated this parameter in a revised index (IC revised ) as an indicator of landscape hydrologic connectivity. Results at the pixel scale are aggregated at the watershed scale.
Results and discussion
Two maps of connectivity are produced, considering the initial IC and the revised form (IC revised ). As expected, the IC gives the highest connectivity in the steepest areas and does not reflect the existing connectivity in lowland areas. On the contrary, the IC revised computed in this study profoundly modifies the sediment connectivity values. These changes are evenly distributed over the entire territory and affected 51.5 % of the watersheds. As a result, we obtained a better correlation between calculated connectivity and the observed drainage density (which reflects the actual connections between hillslopes and rivers) in areas where slopes are gentle (<7 %).
Conclusions
Topographic indices do not reflect the real sediment connectivity in lowland areas, but their adaptation by considering runoff processes of such areas is possible. The IC revised presents an interesting perspective to define other highly connected areas at the country scale, as 17 % of the French territory is characterized by very gentle slopes with high runoff capacity.
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References
Ali GA, Birkel C, Tetzlaff D, Soulsby C, McDonnell JJ, Tarolli P (2013) A comparison of wetness indices for the prediction of observed connected saturated areas under contrasting conditions: wetness indices for the prediction of connected saturated areas. Earth Surf Process Landf 39:399–413
Antoine M, Javaux M, Bielders C (2009) What indicators can capture runoff-relevant connectivity properties of the micro-topography at the plot scale? Adv Water Res 32:1297–1310
Baartman JEM, Masselink R, Keesstra SD, Temme AJAM (2013) Linking landscape morphological complexity and sediment connectivity. Earth Surf Process Landf 38:1457–1471
Bisantino T, Bingner R, Chouaib W, Gentile F, Trisorio Liuzzi G (2015) Estimation of runoff, peak discharge and sediment load at the event scale in a medium-size Mediterranean watershed using the Annagnps model. Land Degrad Dev 26:340–355
Borselli L, Cassi P, Torri D (2008) Prolegomena to sediment and flow connectivity in the landscape: a GIS and field numerical assessment. Catena 75:268–277
Bracken LJ, Croke J (2007) The concept of hydrological connectivity and its contribution to understanding runoff-dominated geomorphic systems. Hydrol Process 21:1749–1763
Bracken LJ, Wainwright J, Ali GA, Tetzlaff D, Smith MW, Reaney SM, Roy AG (2013) Concepts of hydrological connectivity: research approaches, pathways and future agendas. Earth-Sci Rev 119:17–34
Bracken LJ, Turnbull L, Wainwright J, Bogaart B (2015) Sediment connectivity: a framework for understanding sediment transfer at multiple scales. Earth Surf Process Landf 40:177–188
Brierley G, Fryirs K, Jain V (2006) Landscape connectivity: the geographic basis of geomorphic applications. Area 38:165–174
Cavalli M, Trevisani S, Comiti F, Marchi L (2013) Geomorphometric assessment of spatial sediment connectivity in small alpine catchments. Geomorphology 188:31–41
Cerdà A, Doerr SH (2010) The effect of ant mounds on overland flow and soil erodibility following a wildfire in eastern Spain. Ecohydrol 3:392–401
Cerdan O, Govers G, Le Bissonnais Y, Van Oost K, Poesen J, Saby N, Gobin A, Vacca A, Quinton J, Auerswald K, Klik A, Kwaad FJPM, Raclot D, Ionita I, Rejman J, Rousseva S, Muxart T, Roxo MJ, Dostal T (2010) Rates and spatial variations of soil erosion in Europe: a study based on erosion plot data. Geomorphology 122:167–177
Chartin C, Evrard O, Onda Y, Patin J, Lefèvre I, Ottlé C, Ayrault S, Lepage H, Bonté P (2013) Tracking the early dispersion of contaminated sediment along rivers draining the Fukushima radioactive pollution plume. Anthropocene 1:23–34
Croke J, Mockler S, Fogarty P, Takken I (2005) Sediment concentration changes in runoff pathways from a forest road network and the resultant spatial pattern of catchment connectivity. Geomorphology 68:257–268
Darboux F, Davy P, Gascuel-Odoux C, Huang C (2001) Evolution of soil surface roughness and flowpath connectivity in overland flow experiments. Catena 46:125–540
Degan F, Cerdan O, Salavador-Blanes S (2015) Cartographie de l’aléa érosif sur le bassin Loire-Bretagne. Technical report. Agence de l’Eau Loire-Bretagne, laboratoire GéoHydrosystèmes COntinentaux de l’Université François Rabelais de Tours, Bureau de Recherches Géologiques et Minières, Orléans, France
Delmas M (2011) Origine des exports de sédiments fluviatiles: prise en compte de l’hétérogénéité spatiale des versants. Unpublished PhD thesis, Université Paris VI, Paris, France
Delmas D, Cerdan O, Mouchel J-M, Garcin M (2009) A method for developing a large scale sediment yield index for european river basins. J Soils Sediments 9:613–626
D’Haen K, Dusar B, Verstraeten G, Degryse P, De Brue H (2013) A sediment fingerprinting approach to understand the geomorphic coupling in an eastern Mediterranean mountainous river catchment. Geomorphology 197:64–75
Dupas R, Delmas M, Dorioz J-M, Garnier J, Moatar F, Gascuel-Odoux C (2015) Assessing the impact of agricultural pressures on N and P loads and eutrophication risk. Ecol Ind 48:396–407
Foerster S, Wilczok C, Brosinsky A, Segl K (2014) Assessment of sediment connectivity from vegetation cover and topography using remotely sensed data in a dryland catchment in the Spanish Pyrenees. J Soils Sediments 14:1982–2000
Foucher A, Salvador-Blanes S, Desmet M, Simonneau A, Chapron E, Evrard O, Courpt T, Cerdan O, Lefèvre I, Adriaensen H, Lecompte F (2015) Increase in after agricultural intensification: evidence from a lowland basin in France. Anthropocene. doi:10.1016/j.ancene.2015.02.001
Fryirs KA, Brierley GJ, Preston NJ, Kasai M (2007) Buffers, barriers and blankets: the (dis)connectivity of catchment-scale sediment cascades. Catena 70:49–67
Gabriels D, Ghekiere G, Schiettecatte W, Rottiers I (2003) Assessment of USLE cover-management C-factors for 40 crop rotation systems on arable farms in the Kemmelbeek watershed, Belgium. Soil Till Res 74:47–53
Gay A, Cerdan O, Delmas M, Desmet M (2014) Variability of suspended sediment yields within the Loire river basin (France). J Hydrol 519:1225–1237
Gao X, Wu P, Zhao X, Wang J, Shi Y (2014) Effects of land use on soil moisture variation in a semi-arid catchment: implications for land and agricultural water management. Land Degrad Dev 25:163–172
Gumiere SJ, Le Bissonnais Y, Raclot D, Cheviron B (2011) Vegetated filter effects on sedimentological connectivity of agricultural catchments in erosion modelling: a review. Earth Surf Process Landf 36:3–19
Haregeweyn N, Poesen J, Verstraeten G, Govers G, de Vente J, Nyssen J, Deckers J, Moeyersons J (2013) Assessing the performance of a spatially distributed soil erosion and sediment delivery model (WATEM/SEDEM) in Northern Ethiopia. Land Degrad Dev 24:188–204
Heckmann T, Schwanghart W (2013) Geomorphic coupling and sediment connectivity in an alpine catchment – Exploring sediment cascades using graph theory. Geomorphology 182:89–103
Horton RE (1945) Erosional development of streams and their drainage basins; hydrophysical approach to quantitative morphology. Geol Soc Am Bull 56:275
Kiesel J, Schmalz B, Fohrer N (2009) SEPAL-a simple GIS-based tool to estimate sediment pathways in lowland catchments. Adv Geosci 21:25–32
Kiesel J, Fohrer N, Schmalz B, White MJ (2010) Incorporating landscape depressions and tile drainages of a northern german lowland catchment into a semi-distributed model. Hydrol Process 24:1472–1486
Kirkby M (2014) Do not only connect: a model of infiltration-excess overland flow based on simulation. Earth Surf Process Landf 39:952–963
Landemaine V, Gay A, Cerdan O, Salvador-Blanes S, Rodrigues S (2015) Morphological evolution of a rural headwater stream after channelisation. Geomorphology 230:125–137
Lane SN, Reaney SM, Heathwaite AL (2009) Representation of landscape hydrological connectivity using a topographically driven surface flow index. Water Resour Res 45, W08423. doi:10.1029/2008WR007336
Le Bissonnais Y, Montier C, Jamagne M, Daroussin J, King D (2002) Mapping erosion risk for cultivated soil in France. Catena 46:207–220
Le Bissonnais Y, Cerdan O, Lecomte V, Benkhadra H, Souchère V, Martin P (2005a) Variability of soil surface characteristics influencing runoff and interrill erosion. Catena 62(2–3):111–124
Le Bissonnais Y, Jamagne M, Lambert JJ, Le Bas C, Daroussin J, King D, Cerdan C, Léonard J, Bresson LM, Jones R (2005b) Pan-European soil crusting and erodibility assessment from the European soil geographical database using pedotransfer rules. Adv Environ Monit Model 2:1–15
López-Vicente M, Navas A, Gaspar L, Machín J (2013) Advanced modelling of runoff and soil redistribution for agricultural systems: the SERT model. Agric Water Manag 125:1–12
Mardhel V, Frantar P, Uhan J, Andjelov M (2004) Index of development and persistence of the river networks (IDPR) as a component of regional groundwater vulnerability assessment in Slovenia. In Proceedings on the International Conference on Groundwater vulnerability assessment and mapping, Ustron, Poland, pp 15–18
Mardhel V, Gravier A (2006) Carte de vulnérabilité simplifiée des eaux souterraines du bassin Loire Bretagne. Technical Report BRGM/RP-54553-FR, BRGM, Paris
Mekonnen M, Keesstra SD, Stroosnijder L, Baartman JEM, Maroulis J (2014) Soil conservation through sediment trapping: a review. Land Degrad Dev. doi:10.1002/ldr.2308
Meßenzehl K, Hoffmann T, Dikau R (2014) Sediment connectivity in the high-alpine valley of Val Müschauns, Swiss National Park - linking geomorphic field mapping with geomorphometric modelling. Geomorphology 221:215–229
Novara A, Gristina L, Saladino SS, Santoro A, Cerdà A (2011) Soil erosion assessment on tillage and alternative soil managements in a Sicilian vineyard. Soil Till Res 117:140–147
Reid SC, Lane SN, Montgomery DR, Brookes CJ (2007) Does hydrological connectivity improve modelling of coarse sediment delivery in upland environments? Geomorphology 90:263–282
Renard KG, Foster GR, Weesies GA, McCool DK, Yoder DC (1997) Predicting soil erosion by water: a guide to conservation planning with the revised universal soil loss equation (RUSLE). Agriculture Handbook 703. US Department of Agriculture, Washington
Russell MA, Walling DE, Hodgkinson RA (2001) Suspended sediment sources in two small lowland agricultural catchments in the UK. J Hydrol 252:1–24
Sougnez N, van Wesemael B, Vanacker V (2011) Low erosion rates measured for steep, sparsely vegetated catchments in southeast Spain. Catena 84:1–11
Van Oost K, Govers G, Desmet P (2000) Evaluating the effects of changes in landscape structure on soil erosion by water and tillage. Landsc Ecol 15:577–589
Vigiak O, Borselli L, Newham LTH, McInnes J, Roberts AM (2012) Comparison of conceptual landscape metrics to define hillslope-scale sediment delivery ratio. Geomorphology 138:74–88
Vogt J, Soille P, de Jager A, Rimaviciuté E, Mehl W, Foisneau S, Bodis K, Dusart J, Paracchini ML, Haastrup P, Bamps C (2007) A pan-European river and catchment database. European Commission, EUR 22920 EN – Joint Research Centre – Institute for Environment and Sustainability. Office for Official Publications of the European Communities, Luxembourg, p 120
Walling DE (1983) The sediment delivery problem. J Hydrol 65:209–237
Walling DE, Collins AL (2008) The catchment sediment budget as a management tool. Environ Sci Policy 11:136–143
Western AW, Blöschl G, Grayson RB (2001) Toward capturing hydrologically significant connectivity in spatial patterns. Water Resour Res 37:83–97
Wischmeier WH, Smith DD (1978) Predicting rainfall erosion losses-a guide to conservation planning. Agricultural Handbook 537. US Department of Agriculture, Washington
Acknowledgments
This work is supported by the Loire Brittany river basin agency (AELB), and the authors would like to thank Xavier Bourrain and Jean-Noël Gautier for funding the VERSEAU project “Transfert de particules des VERSants aux masses d’EAU.” The authors would also like to thank Artemi Cerdà and an anonymous reviewer for their interesting comments on the manuscript.
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Gay, A., Cerdan, O., Mardhel, V. et al. Application of an index of sediment connectivity in a lowland area. J Soils Sediments 16, 280–293 (2016). https://doi.org/10.1007/s11368-015-1235-y
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DOI: https://doi.org/10.1007/s11368-015-1235-y