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Résultats de la recherche (7 résultats)

Incorporating soil surface crusting processes in an expert-based runoff model : sealing and transfer by runoff and erosion related to agricultural management

Agropedology ; Duricrust ; Field experiment ; France ; Haute-Normandie ; Infiltration ; Loess ; Model ; Precipitation ; Runoff ; Soil erosion ; Water erosion
implemented both in the laboratory and in the field at various scales ranging from small plots up to catchments. For the area of the Pays-de-Caux (Normandie, France), the AA. defined 5 potential infiltrability classes. The objective of this paper

Generating 3D soil surfaces from 2D height measurements to determine depression storage

Surface depression storage is an important factor in preventing runoff and erosion in agricultural fields. The most reliable way of estimating maximum depression storage (MDS) is generally estimated from roughness indices derived from 2D transects
characteristics, using a simulation model that uses common 2D field elevation measurements as input.

Soil surface infiltration capacity classification based on the bi-directional reflectance distribution function sampled by aerial photographs. The case of vineyards in a Mediterranean area

-established, field measured infiltration capacity based typology. The radiometric characteristics of the classes of this typology were measured in the field and their Bi-directional Reflectance Distribution Function (BRDF) was modelled. Vineyard sunlit soil

Hillslope topographic and hydrologic effects on overland flow and erosion

This paper addresses spatial and temporal variability in runoff and erosion processes caused by topographic and hydrological variations. Research efforts included monitoring natural runoff and sediment production in the field at different hillslope

Variability of soil surface characteristics influencing runoff and interrill erosion

A database composed of more than 5000 soil surface observations at the field or plot scale in Normandy was analysed. The AA classified these observations according to combinations of 3 dominant factors : crusting stage, roughness and crop cover

Remote-sensing data as an alternative input for the STREAM runoff model

(STREAM-TED) with those based on field data gathered during the winter of 1998 (STREAM) in the pays de Caux region of northwestern France.

Evaluation of soil erosion protective cover by crop residues using vegetation indices and spectral mixture analysis of multispectral and hyperspectral data

(SACRI), the Crop Residue Index Multiband (CRIM), the Normalized Difference Index (NDI) and the spectral mixture analysis technique (SMA). Field campaigns that were carried out by the FLOODGEN project in Sainte-Angèle-de-Monnoir, Québec, and in Pays-de