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Ephemeral gully erosion research: processes and modeling
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The USDA Natural Resources Conservation Service
(NRCS) defines ephemeral gullies as small channels that
can be filled in by normal tillage operations only to reform
in the same location by subsequent runoff events.
Ephemeral ...
Effect of topography on retreat rate of different gully headcuts in Bardenas Reales area (Navarre, Spain)
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
In Northeast Spain, gullying is a widespread phenomenon.
This type of erosion is especially intense in Bardenas Reales
(Navarre) where at least two major typical kinds of gully
headcut are present. A first group developed ...
AnnAGNPS ephemeral gully erosion simulation technology
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
Tillage-induced ephemeral gully erosion has been shown to
be a significant and sometimes dominant source of sediment
within a watershed. An approach has been developed within
AnnAGNPS to assess the impact of conservation ...
Runoff and sediment supply from small gullied and ungullied basins in a semi-arid grazed environment
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The aim of the present study is to determine links between rainfall, runoff, gully erosion and sediments. The extent of sediment yield (suspended sediment and bedload) and runoff response from gullied and ungullied basins ...
Photogrammetrical and field measurement of gullies with contrasting morphology
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
Despite a wealth of studies on monitoring different types
of gullies by using remote-sensing technique such as
photogrammetry, relatively few efforts have been made to test
their accuracy. Therefore the question arises ...
Analysis of water erosion using GIS and remote sensing for the management of protected natural environments in the south of the province of Salamanca (Spain)
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The soil is a natural resource that must be conserved in
protected natural areas since it is one of the determinant
physical supports in territorial planning because it governs
its different uses. Accordingly, specific ...
When did gully erosion start to be accelerated in the Penedès – Anoia vineyard region (NE Spain)?
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
Gully erosion in the Penedès-Anoia (NE Spain) region is not a past phenomenon. In
this respect, recent research by Martínez-Casasnovas et al.
(2003) has shown that neat erosion rates in gullies reach
576±58 Tn ha-1 year-1 ...
Does vegetation cover suppose gully erosion stabilization?
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The present research is
addressed to study the evolution of vegetation cover on
gully sidewalls and its influence on sediment production
due to gully erosion and on gully walls’ stabilization. A
sample gully system of the ...
Sidewall erosion control strategies in gullies of the Penedès – Anoia vineyard region (NE Spain)
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The objective of this work
is to formulate different sidewall erosion control strategies
to reduce retreat and sediment production rates in the
gullies of the Penedès-Anoia (NE Spain) region.
Activity of gullies during the Holocene in the Ebro valley
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The use of detailed geomorphology for the study of the
Upper Holocene and the application of geoarchaeology and
radiometric datings make it possible to get important results on
the recent stages of valley bottom shaping. ...