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Patterned microrelief in grasslands in cold upland valleys in Papua New Guinea

Geomorphology and geoecology. Geomorphological approaches in applied geography vol. 5

Auteurs :
SULLIVAN, M. E.
HUGHES, P. J.
PLOEY, J. de
HAASE, G.
LESER, H.

Description :
Circular to elongated depressions forming a regular pattern of microrelief have been investigated on gently sloping, poorly drained grasslands in upland valleys in montane Papua New Guinea. The patterned microrelief is the result of a complex of processes involving climate, vegetation, soil properties and lithological baselevel control. The hollows are developed in peaty soils, and bottom-out on harder and less permeable layers within or at the base of the soils. The cracks initiate the micro-hollows whose expansion is facilitated by frost activity.


Type de document :
Congrès

Source :
Actes du colloque, Inconnu, 1989, Zeitschrift für Geomorphologie. Supplementband, issn : 0044-2798, 1991, n°. 83, p. 83-94, Collation : Illustration, Références bibliographiques : 35 réf.

Date :
1991

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

Langue :
Anglais
Droits :
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