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Shallow horizontal groundwater flow in peatlands is reduced by bacteriogenic gas production
Author(s) -
Baird Andrew J.,
Waldron Susan
Publication year - 2003
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2003gl018233
Subject(s) - peat , water table , geology , groundwater , hydrology (agriculture) , environmental science , table (database) , soil science , geotechnical engineering , ecology , computer science , data mining , biology
We tested the extent to which horizontal hydraulic conductivity ( K h ) below the water table in near‐surface peats is affected by the accumulation of biogenic gas bubbles. We found: (1) Immediately after water table rise the peat is not saturated. Levels of initial undersaturation were between 1 and 9 percent. (2) The production of biogenic gas bubbles below the water table causes large reductions (typically more than a factor of two) in K h .