<p>Denitrification requires anoxic conditions, organic matter, and NO<sub>3</sub><sup>-</sup>. </p>

<p>Gleysols are anoxic soils formed in wetlands. Waterlogged wetland soils are generally both anaerobic and high in organic matter. For a given concentration of NO<sub>3</sub><sup>-</sup>, denitrification rates should be higher in Gleysols than similar soils that are aerobic soils (because there will be less organic substrate and less anaerobic habitat).</p>

<p>Notably, even in aerobic soils, denitrification can occur within anaerobic microsites.</p>

<p>references: </p>

<ul>
<li>Bedard-Haughn 2010. Prairie Wetland Soils in Prairie Soils and Crops Journal (<a href="http://www.prairiesoilsandcrops.ca/articles/volume-3-2-print.pdf" rel="nofollow">pdf</a>)</li>
<li>Schlesinger and Bernhardt 2013 Biogeochemistry 3rd Edition p 205-208 </li>
</ul>

CC BY-SA 3.0
2014-08-18T18:17:03.593Z
2014-08-22T17:09:30.527Z
2014-08-22T17:09:30.527Z
David LeBauer
<p>Denitrification requires low oxygen conditions as wells as organic carbon.
Are reduced soils (e.g gleysols) more likely to have higher denitrification rates because they have low oxygen levels? </p>

<hydrology><soil>
How does soil redox potential affect the rate of denitrification?
nolisgol
# How does soil redox potential affect the rate of denitrification?

(Asked by: username_0 on 2014-08-05)

Denitrification requires low oxygen conditions as wells as organic carbon.
Are reduced soils (e.g gleysols) more likely to have higher denitrification rates because they have low oxygen levels?

**Tags:** hydrology, soil


---

## 1 answers

### Answer by username_1 on 2014-08-18. Score: 6 | Accepted answer

Denitrification requires anoxic conditions, organic matter, and NO3-.

Gleysols are anoxic soils formed in wetlands. Waterlogged wetland soils are generally both anaerobic and high in organic matter. For a given concentration of NO3-, denitrification rates should be higher in Gleysols than similar soils that are aerobic soils (because there will be less organic substrate and less anaerobic habitat).

Notably, even in aerobic soils, denitrification can occur within anaerobic microsites.

references:

* Bedard-Haughn 2010. Prairie Wetland Soils in Prairie Soils and Crops Journal ([pdf](http://www.prairiesoilsandcrops.ca/articles/volume-3-2-print.pdf))
* Schlesinger and Bernhardt 2013 Biogeochemistry 3rd Edition p 205-208


---

