Buscar
Mostrando ítems 21-30 de 64
Ephemeral gully headcut development and migration in stratified soils
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The objectives of the current study were: (1) to quantify
the effect of an erosion resistant (ER) soil layer placed at
various depths within a soil profile on headcut development
and migration; and (2) to assess the ...
Prehistoric and modern impacts on gully formation on the loess hills of northern Mississippi, USA
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
In this work the authors present two sites that will help understand the processes that drive gully formation in the uplands of northern Mississippi and how these processes are affected by anthropomorphic influences. The ...
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 ...
Proposed methodology to quantify ephemeral gully erosion
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The overall objective of the proposed research is to
identify and quantify landscape attributes and hydrologic conditions that can be used to assess hillslope seepage and
ephemeral gully erosion. We propose to use three ...
Gully erosion in mountain area of SW-China, assessed using 137Cs and 210PBEX tracers and GPS survey
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
Gullies are extensively distributed in the Upper Yangtze
River Basin, SW-China. But the impact of these gullies on
total sediment output is still not clear because there is no
reliable technique for quantifying this ...
A proposal to study gully erosion on silica sand and arkose slopes in central Spain
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
A research project to be developed, granted by the
Spanish Minister of Education and Science (project
CGL2006-07207), aims to investigate gully erosion on
silica sand and arkose slopes in Central Spain. The period of
the ...
Long term evolution of incised coastal channels on the isle of Wight, UK: insights from numerical modelling
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
Moderate rates of effective precipitation induce a
realistic incised channel network, providing there is a step
cliff profile present. Such a step profile is shown to be
produced by sea-level rise and associated cliff ...
Gully development in agricultural fields: insights from catchment scale analysis
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The aim of this paper is to study the combined effect of human-induced
activity and the physical environmental conditions
on gully development in a small agricultural catchment in
Northern Israel. More specifically the ...
Concentrated flow erodibility of loess-derived topsoils: the impact of rainfall-induced consolidation and sealing
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
This study
investigates the impact of rainfall-induced soil consolidation
and soil surface sealing processes over time after tillage on
soil erosion during concentrated flow. The soil erodibility
(Kc) and critical flow ...
A comparison of anthropogenic and long-term soil erosion on banks peninsula using 137Cs and kawakawa tephra
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)
info:eu-repo/semantics/conferenceObject,
The task of this study is to assess the severity of
anthropogenically induced soil erosion on a loess-mantled
hillslope on the foothills of Banks Peninsula, South Island,
New Zealand. The analysis is restricted to a slope ...