Soil Erosion Network: Experimental Metadata
 Rainfall Simulations, Vallcebre, Barcelona, Catalonia, Spain

 
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Conference Reading
1999

 
1 CONTACT PERSON
1.1 Name Francesc Gallart Gallego
1.2 Address Institut de Ciències de la Terra 
"Jaume Almera" 
c/Lluís Solè i Sabarís, s/n. 
Barcelona 08028 Spain.
1.3 Tel +34 93 409 54 10
1.4 Fax +34 93 4110012
1.5 E-mail fgallart@ija.csic.es
1.6 List other researchers involved: Dra.Roser Guàrdia Rubies, Dr.David Regüés Muñoz
2 WATER EROSION
2.1  mm2 - cm2: physical weathering processes, field and laboratory experimentation
2.2  m2: stereoscopical series of photographs
  • physical degradation (surface sealing, crusting) and its impact on surface roughness, infiltration and runoff Ö seasonal field rainfall simulation
  • biological processes (specify) Ö vegetation releves, seed bank
  • sub-surface dynamics (piping) NONE
2.3 runoff plot (100 m2) -field plot (10000 m2):
  • interrill and rill erosion Ö 1700 m2 monitored plot (ephemeral) gully erosion NONE
2.4 small catchments (<100 ha) :
  • gully erosion NONE
  • sediment budgets NONE
2.5 large catchments (> 100 ha) :
  • channel erosion NONE
2.6 Other scale or processes investigated: see monitoring form
3 WIND EROSION NONE
4 MASS MOVEMENTS NONE
5 TILLAGE EROSION NONE
6 TEMPORAL SCALE OF EXPERIMENTS
6.1 events: yes
6.2 days:
6.3 weeks: yes
6.4 months: yes
6.5 years: yes
6.6 remarks: All experiments were oriented to understanding seasonal weathering and erosion processes
7 DESCRIPTION OF EROSION FACTORS STUDIED
7.1 Climate: Rainfall (surface moisture and erosive potential)
Temperature (ice growing and wetting-drying consecuences and energetic implications)
7.2 Topography: Aspect.
7.3 Soils: NONE
7.4 Vegetation: NONE
7.5 Management: NONE
8 FIELD EXPERIMENTS Description of the field site and of the type of experiments and equipment involved for each of the erosion processes being studied:
8.1 Erosion process: Rainfall simulations
8.2 Location (town, state, country): Vallcebre, Barcelona, Catalonia, Spain
8.3 Equipment involved: Thyes 2000 Datalogger Temperature sensors; manual sampling bulk density and moisture tubes; sediment and water multidivisor tanks; special tripod for vertical series of photographs; rainfall simulator.
8.4 Remarks:
9 LABORATORY EXPERIMENTS Description of the laboratory and the type of experiments and equipment involved for each of the erosion processes studied:
physical weathering: wetting-drying and ice-thawing artificial cycles, with the help of a cold-heat testing cabinet Weiss Umwelttechnik, a laser profilometer and soil micromorphology techniques.
10 REMARKS
11 LIST RELEVANT PUBLICATIONS

Guàrdia, R. and Ninot, J.M. (1992). Distribution of plant communities in the badlands of the upper Llobregat basin (southestern Pyrenees). Studia Geobotanica, 12, 83-103.

Regüés D., Llorens, P., Pardini G., Pini R. and Gallart F. (1993). Physical weathering and regolith behaviour in a high erosion rate badland area at the Pyrenees: research design and first results. Pirineos. nº 141-142, 63-84.

Pardini G., Gallart F., Regüés D., Plana F., Pini R. and Barbini A. (1995). Laser elevation measurements of a smectite-rich mudrock following freeze-thawing and wet-drying cycles. Soil Technology, 8, 161-175.

Regüés D., Pardini G. and Gallart F. (1995). Regolith behaviour and physical weathering of clayey mudrock in a gullied area, as dependent on seasonal weather conditions. Catena, 25 (1-4), 199-212.

Pardini G., Vigna Guidi G., Pini R., Regüés D. and Gallart F. (1996). Structure and porosity of smectitic mudrock as affected by experimental wetting-drying and freezing-thawing cycles. Catena, 27, 149-165.

Regüés D. y Gallart F. (1996). Evolución de la respuesta hidrológica en un área arcillosa acarcavada, en relación con el estado físico superficial. Mediante experiencias de simulación de lluvia. En: Geomorfología en España, pp. 79-89. A.Grandal d'Anglade y J.Pagés Valcarlos (Eds).

Guàrdia, R.; Gallart, F. and Ninot, J.M. (submited). Soil seed bank and seedling dynamics in badlands of the upper Llobregat basin". Catena.

Regüés D.; Guàrdia R. and Gallart F. (submited). Geomorphic agents versus vegetation spreading as causes of badland occurrence and evolution in a Mediterranean humid mountainous area. Catena .

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