Morphological change of natural pipe outlets in blanket peat

Auteur(s) et Affiliation(s)



Description :
This paper presents the first survey of natural pipe outlets in a peatland in which morphological changes in pipe outlets through time were measured. Three surveys of natural pipe outlets between 2007 and 2010 were conducted in a relatively undisturbed, blanket-peat-covered catchment in northern England. The largest changes in pipe morphology occurred between July 2009 and April 2010, which spanned the coldest winter for 31 years in the UK. During this period there was a significant increase in the proportion of vertically-elongated pipes and a decrease in the proportion of circular pipes. Pipe outlet morphology in blanket peat catchments is shown to be dynamic and may respond relatively quickly to changes in flow or extreme events, linked to short-term changes in weather and hence potentially to longer-term changes in climate or land management.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2012, vol. 37, n°. 1, p. 109-118, nombre de pages : 10, Références bibliographiques : 2 p.

Date :
2012

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