Short-term versus medium-term monitoring for detecting gully-erosion variability in a Mediterranean environment

Auteur(s) et Affiliation(s)

MARZOLFF, I.

Dep. of Physical Geography, Goethe Univ., Frankfurt, Allemagne

RIES, J.B.

Dep. of Physical Geography, Univ., Trier, Allemagne

POESEN, J.

Div. of Geography, Dep. of Earth and Environmental Sciences, K.U., Leuven, Belgique

Description :
The AA. investigate how medium-term gully-development data differ from short-term data, and which factors influence their spatial and temporal variability at 9 selected actively retreating bank gullies situated in 4 Spanish basin landscapes. Results show a high variability of annual gully retreat rates both between gullies and between observation periods. The varying influences of land use and human activities on runoff production and connectivity play a dominant role in these study areas, both for short-term variability and medium-term difference in gully development. The study proves the value of capturing spatially continuous, high-resolution three-dimensional data using small-format aerial photography for detailed gully monitoring. Results confirm that short-term data are not representative of longer-term gully development and demonstrate the necessity for medium- to long-term monitoring.

Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2011, vol. 36, n°. 12, p. 1604-1623, nombre de pages : 20, Références bibliographiques : 1 p.

Date :
2011

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais