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A temperature correction procedure for field‐based soil denitrification experiments
Author(s) -
Gardner P.J.,
Flynn N.,
Maltby E.
Publication year - 2000
Publication title -
soil use and management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.709
H-Index - 81
eISSN - 1475-2743
pISSN - 0266-0032
DOI - 10.1111/j.1475-2743.2000.tb00205.x
Subject(s) - denitrification , nitrate , soil science , environmental science , water column , cycling , chemistry , diffusion , soil water , nitrogen , hydrology (agriculture) , environmental chemistry , ecology , thermodynamics , geotechnical engineering , geology , history , organic chemistry , archaeology , biology , physics
Abstract. An equation is developed to permit temperature correction (to some chosen reference temperature) for field‐based soil columns that measure the depletion of nitrate in the water column above a soil layer where denitrification occurs. The derivation is based on the assumption that the overall nitrate depletion is diffusion controlled by the nitrate flux from the water column into the soil and the soil denitrification obeys Michaelis‐Menten kinetics. The expression is tested on results from a large soil column maintained in a greenhouse where natural temperature cycling occurred.