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DISCUSSION: ‘HYDROLOGICAL MODEL OF PEAT‐MOUND FORM WITH VERTICALLY VARYING HYDRAULIC CONDUCTIVITY’ BY ADRIAN C. ARMSTRONG
Author(s) -
BAIRD ANDREW J.,
GAFFNEY SIMON W.
Publication year - 1996
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/(sici)1096-9837(199608)21:8<765::aid-esp682>3.0.co;2-n
Subject(s) - peat , landform , geology , bog , hydraulic conductivity , geomorphology , exponential function , hydrology (agriculture) , soil science , geotechnical engineering , archaeology , geography , mathematics , soil water , mathematical analysis
In this comment we argue that the premise on which the peat mound model developed by Armstrong (Earth Surface Process and Landforms, 1995, 20 , 473–477) is based, that hydraulic conductivity shows an exponential decline with depth in bog peats, is unsound. Empirical evidence in the literature for such an exponential decline is less sound than Armstrong suggests. In addition, Armstrong's suggestion that the hypothesis of Baird and Gaffney (Earth Surface Processes and Landforms, 1995, 20 , 561–566) supports an exponential decline is shown to be erroneous.