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The role of preferential flow through soil-pipes in ephemeral gully erosion
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The objective of this study was to quantify the hydrologic
conditions under which discontinuous soil-pipes reestablish
ephemeral gullies and continuous soil-pipes initiate
ephemeral gullies.
A general sediment transport model for linear incisions
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
Previous research has shown that the functional relationship between sediment transport and shear stress, discharge and slope is non-linear. The different datasets that support this hypothesis are however all derived from ...
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 ...
Alluvial gully erosion: a landscape denudation process in Northern Australia
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
Recent aerial reconnaissance surveys and subsequent
remote sensing mapping of Australia’s tropical rivers
identified alluvial gully erosion as a key sediment source
(Brooks et al. 2007; Knight et al. 2007). Gully erosion ...
Scouring-sedimentation balance for gully reaches affected by check dams in Mediterranean environments
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
Many of the geomorphological impacts caused by check
dams are usually fairly common in torrential channels (bed
agradation upstream into the sedimentary wedges,
deepening and narrowing of the bankfull channel
downstream, ...
Turbulent flow within headcut scour holes in rills and gullies
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The objectives of the present study were to experimentally determine the time-mean turbulent flow characteristics within fixed-bed models of headcut scour holes typical of upland concentrated flows to assess soil erosion ...
Agricultural land use, piping and gullies activity in the Huelva lower valley (Saragossa, Spain)
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The variations in the total amount of surface used for
arable crops both for dry farming and fallow land, with
regard to the different “agricultural policies”, have modified
the natural dynamics of some processes such ...