Morphology and controlling factors of landslide cirque gullies: a case study from the Sprogu gravas nature monument (SE Latvia)

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Date
2007Author
Version
Acceso abierto / Sarbide irekia
Type
Contribución a congreso / Biltzarrerako ekarpena
Version
Versión publicada / Argitaratu den bertsioa
Impact
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nodoi-noplumx
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Abstract
Human-induced changes of landscape and the vegetation
cover have been recognized in the majority of studies focusing
on gully formation as one of the most important factors
triggering the development of gullies throughout the world.
However, detailed studies of singular erosion landforms in
south-eastern Latvia, particularly those that are located on
steep slopes of river banks modified by mass m ...
[++]
Human-induced changes of landscape and the vegetation
cover have been recognized in the majority of studies focusing
on gully formation as one of the most important factors
triggering the development of gullies throughout the world.
However, detailed studies of singular erosion landforms in
south-eastern Latvia, particularly those that are located on
steep slopes of river banks modified by mass movement
processes and presently found under forest, indicate that these
gullies are not a geomorphic features resulting entirely from
human agricultural activities. Such short, bottleneck-shaped
gullies (Crosta, di Prisco, 1998), described in Latvia as
landslide cirque or spring cirque gullies (Venska, 1982), can be
found in deep river valleys and subglacial tunnel valleys in
Latvia, but few studies have reported on their morphological
characteristics and their origin.
This study investigates these landslide cirque gullies
initiated via mass movement processes in the local case-study
area of the river Daugava Valley in south-eastern Latvia. The
objectives are (1) to determine the spatial distribution of these
gullies, (2) to measure their morphological and topographical
characteristics and (3) to interpret the factors that led to their
development. [--]
Subject
Landslide cirque gullies
Publisher
Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
Published in
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
Description
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.
Sponsorship
Part of the work reported in this paper was
financially supported by the ESF grant from the project
2005/0135/VPD1/ESF/PIAA/04/APK/3.2.3.2/0032/0065.