Development and controlling factors of gullies and gully complexes, East Coast, New Zealand

Gully erosion in mountain areas : processes, measurement, modelling and regionalization

Auteurs :
PARKNER, T.
PAGE, M.J.
MARUTANI, T.
TRUSTRUM, N.A.
WAINWRIGHT, J.

Description :
Sequential aerial photographs of a small headwater catchment in the Waiapu basin, North Island, were interpreted to measure and analyse temporal changes in active area of gullies and gully complexes for a longer time span (1939-2003) and with higher temporal resolution compared to previous studies. The AA. focus on the conditions leading to the development of gullies and gully complexes under pasture and forest by using topographic thresholds (slope-area relationships) of catchments for the initiation of gullies and gully complexes. In addition, the influence of 2 different lithologies as well as the occurrence of major rainfall events was related to gully activity.


Type de document :
Congrès

Source :
Conférénce internationale Gully erosion in mountain areas : processes, measurement, modelling and regionalization, Digne, France, 2003-10, Earth surface processes and landforms, issn : 0197-9337, 2006, vol. 31, n°. 2, p. 187-199, nombre de pages : 13, Collation : Illustration, Références bibliographiques : 20 ref.

Date :
2006

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