Sediment production, storage and output : the relative role of large magnitude events in steepland catchments

Magnitude and frequency in geomorphology

Auteurs :
TRUSTRUM, N.A.
GOMEZ, B.
PAGE, M.J.
REID, L.M.
HICKS, D.M.
CROZIER, M.

Description :
Magnitude-frequency analysis provides an approach to assess the effectiveness of rare events for generating and transporting sediment in the 32 km2 Tutira catchment and the 2205 km2 Waipaoa River Basin, located in the erodible softrock hill country of the eastern portion of New Zealand's North Island. Shallow landsliding, triggered by high-intensity storms, is an important erosion process throughout the region. The long-term record of sedimentation in Lake Tutira suggests that the magnitude and frequency of the erosional response varies with land use, vegetation type and climatic regime.


Type de document :
Congrès

Source :
International Conference on geomorphology, 4, Bologna, Italie, 1997-08-28, Zeitschrift für Geomorphologie. Supplementband, issn : 0044-2798, 1999, n°. 115, p. 71-86, Collation : Illustration, Références bibliographiques : 64 ref.

Date :
1999

Editeur :
Pays édition : Allemagne, Berlin ; Stuttgart, Borntraeger