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Thresholds for gully initiation and sedimentation in Mediterranean Europe
Vandekerckhove, L.; Poesen, Jean; Oostwoud-Wijdenes, D.; Nachtergaele, J.; Kosmas, D.; Roxo, M. J.; Figueiredo, Tomás deIn 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 of a landscape to gully erosion. Two important components of gully erosion studies are the prediction of where gullies begin and where they end. To address some of these is...
Topographical thresholds for ephemeral gully initiation in intensively cultivat...
Vandekerckhove, L.; Oostwoud-Wijdenes, D.; Figueiredo, Tomás deEphemeral gullying is an important erosion process in Mediterranean areas suffering from land degradation because of increased drought and human impact. An ephemeral gully is formed when a hydraulic threshold for incision into a resistant soil surface is exceeded. The flow intensity at the soil surface of any landscape position is controlled by topographical parameters, such as local slope (S) and drainage-basi...
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