inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (5 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Topographical thresholds for ephemeral gully initiation in intensively cultivated areas of the Mediterranean
  • Concept ; Cultivated land ; Gully erosion ; Mediterranean area ; Murcia ; Portugal ; Rill wash ; Slope gradient ; Soil erosion ; Spain ; Threshold ; Watershed
  • Ephemeral gullying is an important erosion process in Mediterranean areas. The objective of this study was to investigate to what extent one could use field measurements of S (local slope) and A (drainage-basin area) to predict the location
  • of ephemeral gully initiation in intensively cultivated Mediterranean environments. Two relatively homogeneous study areas in Southeast Spain and Northeast Portugal with widespread ephemeral gullying were selected.
  • 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.
  • 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
  • Arid area ; Dendrochronology ; Dendrology ; Erosion rate ; Gully erosion ; Murcia ; Rill wash ; Soil erosion ; Spain ; Watershed