Editing Soil (section)

=== Redox ===
{{main|Redox#Redox_reactions_in_soils}}
{{See also|Table of standard reduction potentials for half-reactions important in biochemistry}}

Soil chemical reactions involve some combination of proton and [[electron transfer]]. [[Redox|Oxidation]] occurs if there is a loss of electrons in the transfer process while [[Redox|reduction]] occurs if there is a gain of electrons. [[Reduction potential]] is measured in volts or millivolts. Soil microbial communities develop along [[electron transport chain]]s, forming electrically conductive [[Geobacter#Biofilm conductivity|biofilms]], and developing networks of [[bacterial nanowires]].

Redox factors act on soil development, with [[redoximorphic features|redoximorphic color features]] providing critical information for soil interpretation. Understanding the [[Redox gradient#Terrestrial Environments|redox gradient]] is important to managing [[carbon sequestration]], [[bioremediation]], [[Pedosphere#Redox conditions in wetland soils|wetland delineation]], and [[soil-based microbial fuel cell]]s.