Discharge and gully erosion in a small rangeland catchment
Fecha
2007Versión
Acceso abierto / Sarbide irekia
Tipo
Contribución a congreso / Biltzarrerako ekarpena
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
nodoi-noplumx
|
Resumen
Valley bottom gullies are a common feature in rangelands.
Although these gullies are found in the bottom of drainage
lines, information about the relationship between discharge
and gullying is scarce (Crouch, 1990; Thomas et al., 2004).
This may in part be due to the large temporal variation of this
phenomenon making necessary monitoring of runoff and
erosion for a large number of years. Si ...
[++]
Valley bottom gullies are a common feature in rangelands.
Although these gullies are found in the bottom of drainage
lines, information about the relationship between discharge
and gullying is scarce (Crouch, 1990; Thomas et al., 2004).
This may in part be due to the large temporal variation of this
phenomenon making necessary monitoring of runoff and
erosion for a large number of years. Since 1990 research is
carried out on the development of valley bottom gullies in
small wooded rangeland catchments in southwest Spain.
Erosion varies strongly along the gully section with high
losses related to headcut retreat (Schnabel et al., 1999). The
importance of extreme events producing exceptional sediment
losses has also been demonstrated (Schnabel, 1997). In the
year 2000 investigation started in the Parapuños experimental
basin. The present paper aims at understanding the
relationship between gully erosion and catchment hydrology. [--]
Materias
Catchment hydrology,
Gully erosion
Editor
Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
Publicado en
Javier Casalí, Rafael Giménez (eds.): Progress in Gully Erosion Research. IV International Symposium on Gully Erosion. September 17-19, 2007. Pamplona, Spain. Pamplona: Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007
Notas
Resumen del trabajo presentado al IV International Symposium on Gully Erosion, celebrado en la Universidad Pública de Navarra del 17 al 19 de septiembre de 2007.
Entidades Financiadoras
The work was made possible by various research
projects of the Spanish Ministry of Education and Science (AMB92-0580,
AMB95-0986-C02-02, HID98-1056-C02-02, REN2001-2268-C02-02,
CGL2004-04919-C02-02) and by RESEL (Ministry of Environment).