COST 623 “Soil Erosion and Global Change” Workshop
Working Group 1 – Linking processes across temporal and spatial scales
Working Group 2 – Key thresholds for soil erosion

International Symposium
Third Circular

The significance of soil surface characteristics in soil erosion

20–22 September 2001, University Louis Pasteur, Strasbourg, France

Organized by RIDES group (National Research Programmes for Hydrology – PNRH and for Soil Erosion – PNSE), network of several research groups of CNRS, INRA, IRD and Universities. Supported by PNRH, BRGM, ESSC, INRA, UNESCO, Université Louis Pasteur

Symposium Objectives and Scope

The aim of the meeting is to provide a forum for the presentation and discussion of recent developments in understanding the influence of soil surface characteristics (SSC) on infiltration and on the hydraulics and spatial organization of runoff and sediment transport in the catchment system. This symposium follows on the first Assessment of Soil Surface Sealing and Crusting (Ghent, Belgium, 1985), the second Crusting symposium (Georgia, USA, 1991) followed by the third Sealing, Crusting and Hardsetting Soils (Brisbane, Australia, 1994). It is anticipated that issues of spatial and temporal scaling of processes and parameter measurements will be addressed at the meeting.

The meeting will develop along major themes exploring the SSC control on: hydrodynamic properties, organization of the micro and macro-porosity at the soil surface, dynamics of SSC in relation to interactions between climate, land use, biological activity, depression storage, overland flow and related parameters at spatial scales from less than 1 m² up to small catchments (<1 km²). In the framework of the COST 623 Working Groups activities, a follow-up meeting addressing SSC-related issues of spatio-temporal organization and connectivity of runoff at the plot to catchment scale is planned in 2002 in Muencheberg, Germany.

Scientific Committee

P. Andrieux, A.-V. Auzet, J. Boulègue, E. Cammeraat, M. Esteves, C. Gascuel,  K. Helming, C. King, M.J. Kirkby, Y. Le Bissonnais, J. Poesen, C. Valentin.

Local organisers

Topics

1. Elementary processes and thresholds in soil surface dynamics

• Sealing and crusting
• Rilling and gullying
• Runoff generation
• Biological and vegetation interactions

2. The effects of soil surface characteristics on wind and water erosion

• Hydrology
• Wind shear

3. Surface characterisation at point to catchment scales

• Acquisition of data and assimilation within models
• Cross-scale comparisons
• New technologies

4. Drivers and management of soil surface characteristics

• Vegetation, land use and landscape patterns
• Climate
• Soil
• Management of soil surface characteristics

Format

Oral Presentations

The time interval for oral presentations is 15 minutes including discussion. Slide projector, overhead projector and video projector will be provided.

Poster Presentations

The Poster size should be 100 cm by 140 cm (width by height) max. Poster sessions will be introduced by short (1 minute) oral presentations. The objective of the one-minute presentations is to help other researchers to decide which posters are of greatest interest to them.

Each person has a maximum of 1 minute to present an outline of his/her poster. In this short time, it is better to explain a few things clearly than many things badly. We suggest that you focus on maximum three or four key points during your talk. Only one single overhead transparency may be shown. Do not try to squeeze too much onto this transparency! Note that it may be in colour. Note also that, if you wish to convey more detailed information regarding your poster, you could prepare some handouts to be distributed during the poster sessions.

Abstracts

All abstracts accepted for presentation during the symposium will be published in a book of abstracts that will be made available to all participants at the outset of the symposium. An updated copy of your abstract can be send before 31 July 2001 by e-mail to vandijk@geographie.u-strasbg.fr.

Publication of papers

It is intended to publish papers of the symposium in a special issue of International Journals (Earth Surface Processes and Landforms, Hydrological Processes). The deadline for receipt of your paper is 15 October 15 2001. The contribution should not exceed 6000 words, including tables and figures.

Timetable

Wednesday, September 19

Arrival and Registration - installation of posters (session 1 and 2)

Thursday, September 20 : oral and poster sessions 1 and 2

Session 1: Elementary processes and thresholds in soil surface dynamics

Session 2: The effects of soil surface characteristics on wind and water erosion

Posters session 1

• Soil surfaces, where do they go? R. Baker and P.J. Farres
• Microgeometrical characterisation and percolation threshold evolution of a crust under rainfall. Cousin Isabelle, Malam Issa Oumarou, Le Bissonnais Yves
• Plot-scale variations in soil dispersivity across a trashed gullyhead displaying shallow subsurface pipes. Hazel Faulkner
• Bed geometry influence on rill flow velocity. Rafael Giménez and Gerard Govers
• Interrill wash and splash erosion as affected by surface roughness and rainfall intensity. W. Jester, A. Klik, G. Hauer, C. C. Truman
• The effect of surface roughness on the hydraulic radius. Victor Jetten
• Dynamics of surface and subsurface flow in convergent hollows : the results of a rainfall simulation and modelling approach. Patrick N.J. Lane, Jacky C. Croke, and Paul Dignan
• Aggregate stability as an indicator of interrill erosion processes. Leguédois Sophie, Le Bissonnais Yves, Duval Odile
• Erodibility as affected by temporal changes in soil condition. G. J. Levy, A. I. Mamedov and I. Shainberg
• Dynamic evolution of soil surface structure and unsaturated hydraulic conductivity of a developing crust. Malam Issa O., Cousin I., Le Bissonnais Y., and Quetin P.
• Microbiotic soil crusts in the Sahelian part of Western Niger and their influence on soil-water dynamics. Malam Issa O., Défarge C., Trichet J. and Valentin C.
• Evaluation of a soil aggregate stability test (Le Bissonnais, 1996) for loamy cultivated soils of central Belgium. Teddy Ntedika Tsasa and C. Bielders
• A diffusion equation for raindrop erosion modelling in tillage-induced microreliefs. Olivier Planchon, Michel Esteves, Norbert Silvera, and Jean-Marc Lapetite
• Soil Surface Sealing and Crusting on Abandoned Fields in the Central Ebro Depression/Northern Spain – an Experimental Soil Erosion Study Using Rainfall Simulation and Thin Sections. Johannes B. Ries & Rebecca Langhagen
• Effects of spatial and temporal variable soil hydraulic data on model outcome for an agricultural catchment on the Loess Plateau in China. Jannes Stolte, Coen J.Ritsema, Guanghui Zhang, Bas van Venrooij.
• Splash-Induced Soil Surface Dynamics. Dino Torri, Lorenzo Borselli, M.Pilar Salvador Sanchis, Marta S. Yañez

Posters session 2

• Topsoil Characteristics And Runoff Generation on Three Vertisols Of Ghana. B.O. Antwi and Van Tei
• Soil surface configuration: its effects on soil erosion, rainwater infiltration and runoff. B.O. Antwi
• Descriptors of surface conditions for infiltration/runoff and erosion assessment Auzet A.V. et al.
• Rill and ephemeral gully erosion in vineyards of Central Navarre (Spain). De Santisteban, L., J. Casalí and J. J. López
• Temporal changes of soil surface properties related to wind erosion. Roger Funk
• Soil surface characteristics and  water erosion in Sahelian area : Case study of a small pastoral catchment in the north of Burkina Faso. H. Karambiri, O. Ribolzi, A. Coudrain, A. Casenave, J. P. Delhoume
• Hydraulic soil surface condition effects on runoff and soil erosion from interrill areas. A. Klik and A. Zartl
• Effects of soil properties, tillage and weather on permeability, runoff and soil losses in  South-Eastern Norway. Helge Lundekvam
• Soil surface characteristics effects on infiltration on black marls hillslopes (The Supersauze Earthflow, Alpes de Haute Provence, F). Malet J.P., Auzet A.V., Maquaire O., Ambroise B., Descroix L., Esteves M , Vandervaere J.P., Truchet E.
• Impact of soil characteristics on the spatial and temporal organization of concentrated flow erosion on loess-derived soils. Nachtergaele, J., Poesen, J.
• Rock fragments in cultivated soils in Northern Ethiopia: spatial distribution and effect on soil loss reduction. Nyssen J., Poesen J., Moyersons J., Deckers J., Haile M., Lavrysen E.
• Soil surface conditions during winter: consequences for erosion processes during snowmelt. Lillian Øygarden & Sigrun Kværnø.
• Splash detachment on loess soil under different soil surface conditions. Jerzy Rejman, Ryszard Brodowski
• Hydrophobic and Crusted mine soils. Effects on Infiltration, Overland Flow and Erosion. Wolfgang Rolland, Detlef Biemelt, Andrea Schapp, Michael Antl & Uwe Grünewald
• Relationship between surface microtopography, soil hydrology, and sediment yield during simulated rainstorms. M.J.M.Romkens, K. Helming and S.N.Prasad
• Runoff determination on the cracked soils with the use of procedure of rainfall intensity estimation. Slawinski C. Walczak R. T.
• Modification du couvert végétal et dynamique éolienne à l’échelle du plateau de Mostaganem (Algérie). Smahi E., Remouan Kh. et Kouri L.
• The study of the significance of soil surface characteristics on erosion, at different scales, using rainfall simulator,field plots and ¹⁴⁷Cs technique. S. P. Theocharopoulos, H. Florou, M. Christou, H. Kalantzakos, P. Κοuloubis, F., Tsouloucha, P.Tountas, Gatzoyianni, P.
• The effects of gully erosion on Hafit Mountain slopes, the Eastern province of United Arab Emirates. Torab, M. M.

Friday, September 21:

Saturday, September 22 : oral and poster sessions 3 and 4

Session 3: Surface characterisation at point to catchment scales

Session 4: Drivers and management of soil surface characteristics

Posters session 3

• A Radarsat-1 based multi-angular approach to separate and map moisture and surface roughness components of the radar signal backscattered by bare soils. Joèl Angles, Mahmod Reza Sahebi and Ferdinand Bonn
• Evaluation of soil erosion protective cover by crop residues using vegetation indices and spectral mixture analysis of multispectral and hyperspectral data. Éric Arsenault and Ferdinand Bonn
• Methodical approach to soil redistribution assessment using Chernobyl-derived Caesium-147. Dr Ph. Bonte, Dr N.N. Ivanova, Dr V.N. Golosov, MSc V.R. Belyaev, MSc M.V. Markelov
• Tridimensional investigation of the soil roughness evolution along time by using a rainfall simulator and a stereovision device. V.Ciarletti, P.Boissard, L.M.Bresson, M.Zribi and L.Bennaceur, M.Chapron
• Apport des SIG et de la télédétection pour la gestion du ruissellement, de l'érosion et du phosphore à l’échelle du bassin versant : cas de la Rivière aux Brochets, sud du Québec. Julie Deslandes, Jérôme Cattaï, Ferdinand Bonn et Aubert Michaud
• Geomatic modelling of the soil erodibility factor K for the Chaudière River basin (Québec, Canada). Marc Duchemin, Alain N. Rousseau, Luc Lamontagne et Jean-Pierre Villeneuve
• An assessment of the use of terrestrial photogrammetry as a method for the monitoring of natural soil surface changes over an extended period. P.J.Farres & A.P. Merrel
• Modelling Soil Surface Characteristics For A Catchment System. Binyam Yoseph Gebreselassie , Hans.-B. Horlacher
• The use of entropy dimension index to assess the extent of soil erosion. Giraldez J.V., Mateos L., Fernandez R.
• Synthesis landscape pedological cartography using remote sensing "Landsat TM images". Case of the region of Ghassoul (El-Bayadh). Haddouche I., Benhamouda F., Djili K.
• Effect of dimension, size and resolution on roughness determination. Katharina Helming
• Spatial variability of saturated hydraulic conductivity derived from measurements of air permeability: Effects on surface runoff modelling. Bo V. Iversen, Per Schjønning, Per Moldrup
• Investigations of the susceptibility to surface sealing on a field scale. Christine Jöckel, Nicola Fohrer, Hans-Georg Frede
• Spatial variability of aggregate stability on a field scale. Christine Jöckel, Nicola Fohrer, Hans-Georg Frede
• Generating 4D soil surfaces from 2D measurements in order to determine Maximum Depression Storage. Eva Kamphorst, Joël Chadœuf, Victor Jetten, Jérôme Guérif
• Runoff Thresholds, Infiltration equations and SCS curve numbers in the context of Hydrologically Similar Surfaces (HYSS). Mike Kirkby
• Application of the physical based erosion prediction model EROSION 2D/4D. Empirical approaches to determine model-parameters. Anne Michael and Jürgen Schmidt
• The use and limitations of microrelief data in estimating surface storage capacity at field scale. Olivier Planchon and Norbert Silvera
• Defining HYSS Based Response Units (HyssBRU) for hydrological modelling in a semi-arid environment. S. Reaney, M. Kirkby and L Bull
• An automated device to measure flow depth and flow velocity in interrill runoff. Norbert Silvera and Olivier Planchon
• Simulating the effect of tillage factors on runoff generation in a small agricultural catchment in Northwest Spain. Ivo Thonon, Victor G. Jetten & Antonio Paz González
• Mapping of soil surface features in vineyards  by remote sensing at very high spatial resolution. T. Wassenaar, P. Andrieux, J.M. Robbez-Masson, F. Baret

Posters session 4

• Effects of soil surface management on erosion during extreme rainfall events in semiarid agricultural lands (Central Spain). S. De Alba and G. Benito
• Microtopographic erosion features, an indicator of erosion hazard. Ir.Eelko Bergsma
• Soil surface properties of irrigated arable fields in SE Spain. Erik L.H. Cammeraat
• Soil surface characteristics effects on runoff and erosion on the basaltic plateau of Southern Brazil. Castro N.M.R., Auzet A.V., Chevallier P.
• Soil Factors In Gully Erosion Generation At Agulu/Nanka Area, Anambra State Nigeria. Egboka, B.C.E., Balanjo, E.W. and Ofomah, J.C.
• Erosion-protection stability of small catchment’s soil cover on southwest border of klin-dmitrov hills. Fless A.D., Silinevich N.V., Titov V.V.
• A Study of the Behavior of Surface Flow and Its Sediment Load as Influenced by Real and Simulated Grass Strips. H. Ghadiri, W.L. Hogarth, and C.W. Rose 
• Soil management effects on soil surface aggregates and soil loss on two Norwegian soils. Heidi A. Grønsten
• Variability of soil surface characteristics influencing interrill erosion processes in cultivated catchments. Yves Le Bissonnais, Olivier Cerdan, Véronique Lecomte, Hassane Benkhadra, Véronique Souchère, Philippe Martin
• Infiltration envelopes for different uses and vegetation covers of a ferrallitic soil in Southern Rwanda. J. Moeyersons
• Experimental and numerical analysis of tillage and rainfall effects on infiltration in cultivated soils of Senegal. B. Ndiaye, M. Esteves, J. M. Lapetite, J.P. Vandervaere, M. Vauclin
• Seasonal changes in regolith surface characteristics and behaviour in a badland area in the Pyrenees. Regües D. and Gallart F.
• Effectiveness of vegetation barriers in marly sediment trapping. F. Rey
• Data analysis of correlation between soil parent material and gullying intensity. Soms, J.
• Szymon Szewrański, Józef Sasik, Romuald Żmuda
• Effects of conservation tillage on random and oriented surface roughness and the implications for depression storage on the hillslope. Paul van Dijk

Sunday, September 23

Departure

Location

The symposium will be held at the PEGE (Pôle Européen d’Economie et de Gestion), 61 avenue de la Forêt Noire, 67000 Strasbourg. You can find detailed maps on the website http://www.mairie-strasbourg.fr/sigcus/index.html.

Travel

The PEGE (the symposium location) is at 15 minutes walk from the historical town centre and at 5 minutes walk from tram station "Observatoire" (tram line C, direction "Esplanade").

The International Airport Strasbourg-Entzheim is located 20 km southwest of the city of Strasbourg. There is a shuttle leaving from the airport each 15 minutes (30 FF), which connects to tram A at station "Baggersee". For those coming by train: take tramline A from the central station to "Homme de Fer". Tram station "Homme de Fer" connects tram lines A and C.

Accommodation

Symposium participants are asked to book a hotel room themselves (cf. list below). Participants are urged to make reservations for their accommodation as soon as possible since September is very crowdy. You can also find other addresses on the website http://www.strasbourg.com/hotels/indexf.html.

There are 20 student rooms available on request (100 FF / night). Those who are interested are asked to contact the CEREG.

Registration fee

Before July 31, 2001:          

• ordinary participants 150 Euros
• ESSC Members 140 Euros
• PhD Students 100 Euros

After July 31, 2001:          

• 200 Euros

The registration fee, prior to 31 July 2001, will be 150 Euros. After that date, the registration fee will be 200 Euros. It will cover all conference materials, a book of abstracts, the field excursion and field guide, coffee and tea during breaks, lunches and the symposium dinner.

Members of the ESSC benefit of a 10 Euro discount if the registration fee is received before 31 July 2001.

PhD students benefit of a special rate of 100 Euros.

Payment of registration fees should be made in Euros by bank transfer, cheque or credit card (see registration form). The registration fees mentioned above are exclusive bank transfer costs, which are to be paid by the participant.

Further information

For further information or any kind of assistance regarding the symposium please contact Paul Van Dijk (vandijk@geographie.u-strasbg.fr), CEREG, Université Louis Pasteur, Faculté de Géographie, 3 rue de l’Argonne, F- 67083 Strasbourg Cedex
tel: 33+3 90 24 09 28 – fax: 33+3 90 24 09 00

Hotels

Close to the location of the symposium and the historical Town Center

From these hotels, you should take the tram

Other addresses on the website http://www.strasbourg.com/hotels/indexf.html

Registration Form

The significance of soil surface characteristics in soil erosion

Strasbourg, France, 20–22 September 2001

Name:

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Mailing Address:

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(please include country and city codes)

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Payment:

• Payment by bank transfer to TP STRASBOURG (please join a copy of the bank transfer indicating "Registration SSC Symposium")

• Payment by cheque to the order of  “ Régie Recettes DEPULP ” and mail to Paul van Dijk (address below).
• Payment by credit card            Visa              EuroCard – Mastercard

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Please return this form (via ordinary mail, fax or email) and abstract to:

Paul van Dijk
CEREG – UMR 7007 CNRS-ULP-ENGEES
Université Louis Pasteur, Faculté de Géographie
3, rue de l’Argonne
F- 67083 Strasbourg Cedex
France

Fax: 33 +3 90 24 09 00

E-mail: vandijk@geographie.u-strasbg.fr