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Correction published on 15 October 2015, see Forests 2015, 6(10), 3683-3685.

Open AccessArticle
Forests 2015, 6(4), 1325-1342; doi:10.3390/f6041325

Source Material and Concentration of Wildfire-Produced Pyrogenic Carbon Influence Post-Fire Soil Nutrient Dynamics

Department of Forestry, Michigan State University, 480 Wilson Road Room 126, East Lansing, MI 48824, USA
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Author to whom correspondence should be addressed.
Academic Editor: Jianbang Gan
Received: 28 February 2015 / Revised: 6 April 2015 / Accepted: 13 April 2015 / Published: 21 April 2015
(This article belongs to the Special Issue Climate Change and Forest Fire)
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Abstract

Pyrogenic carbon (PyC) is produced by the thermal decomposition of organic matter in the absence of oxygen (O). PyC affects nutrient availability, may enhance post-fire nitrogen (N) mineralization rates, and can be a significant carbon (C) pool in fire-prone ecosystems. Our objectives were to characterize PyC produced by wildfires and examine the influence that contrasting types of PyC have on C and N mineralization rates. We determined C, N, O, and hydrogen (H) concentrations and atomic ratios of charred bark (BK), charred pine cones (PC), and charred woody debris (WD) using elemental analysis. We also incubated soil amended with BK, PC, and WD at two concentrations for 60 days to measure C and N mineralization rates. PC had greater H/C and O/C ratios than BK and WD, suggesting that PC may have a lesser aromatic component than BK and WD. C and N mineralization rates decreased with increasing PyC concentrations, and control samples produced more CO2 than soils amended with PyC. Soils with PC produced greater CO2 and had lower N mineralization rates than soils with BK or WD. These results demonstrate that PyC type and concentration have potential to impact nutrient dynamics and C flux to the atmosphere in post-fire forest soils. View Full-Text
Keywords: pyrogenic carbon; black carbon; nitrogen; soil respiration; N mineralization; wildfire; Pinus banksiana pyrogenic carbon; black carbon; nitrogen; soil respiration; N mineralization; wildfire; Pinus banksiana
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Michelotti, L.A.; Miesel, J.R. Source Material and Concentration of Wildfire-Produced Pyrogenic Carbon Influence Post-Fire Soil Nutrient Dynamics. Forests 2015, 6, 1325-1342.

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