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PORTAIL D'INFORMATION GÉOGRAPHIQUE

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  • Arid area ; Europe ; Gully erosion ; Land use ; Lithology ; Mediterranean area ; Slope gradient ; Soil ; Soil erosion ; Soil properties ; Watershed
  • In Mediterranean areas the dynamics of gully development act as an important indicator of desertification. However, little is known about the influence of climate and land-use changes, and almost no field data exist to assess the sensitivity
  • Mediterranean study areas were established. Discussion of the results.
  • Alentejo ; Cultivated land ; Erosion rate ; Gully erosion ; Land use ; Mediterranean area ; Model ; Murcia ; Portugal ; Soil erosion ; Spain ; Wasteland ; Watershed
  • An EGEM-input data set for 86 ephemeral gullies was collected : detailed measurements of 46 ephemeral gullies were made in intensively cultivated land in southeast Spain (Guadalentin study area) and another 40 ephemeral gullies were measured in both
  • intensively cultivated land and abandoned land in southeast Portugal (Alentejo study area). Together with the assessment of all EGEM-input parameters, the actual eroded volume for each ephemeral gully was also determined in the field. The resulting
  • Arid area ; Desertification ; Gully erosion ; Land use ; Mediterranean area ; Rill wash ; Soil erosion ; Spain ; Statistics ; Watershed
  • Arid area ; Granada ; Gully erosion ; Lithology ; Regression analysis ; Semi-arid area ; Soil erosion ; Spain ; Watershed
  • The medium-term evolution of a gully (Kinderveld gully) initiated in a cultivated area on loess-derived soils southwest of Leuven (Belgium) in May-June 1986, was studied over 15 years. Two intense rainfall events created this (ephemeral) gully
  • , which was not erased by subsequent tillage. Between June 1986 and December 1999, 8 field surveys were conducted to measure gully dimensions. Discussion of the results. Although this gully is located in a cultivated area, it became permanent due