title: Impact of fire and post-fire management techniques on soil chemical properties
creator: Gómez Rey, M.X.
creator: Couto Vázquez, A.
creator: García Marco, Sonia
creator: González Prieto, S.J.
subject: Chemistry
description: The effects of  fire (  Control  burned soil) and two emergency stabilisation techniques (grass  Seeding  and straw  Mulching  ) on 20 chemical characteristics were evaluated on 0  –  5 cm top-soils sampled 1, 90, 180 and  365 days after an experimental  fi  re in a steep shrubland of a temperate-humid region (NW Spain). Most  part of pH (in H  2  O and KCl) variance was explained by the sampling date. No clear temporal trends were  identi  fi  able for total soil C and N content, likely due to the large SOM pool in these soils; however, changes  on soil  δ  13  C were explained by the deposition of  13  C-depleted ashes, followed by its progressive erosion,  while those on soil  δ  15  N were a consequence of  fi  re induced N outputs. After the  fi  re, NH  4  +  –  N, P, Na, K, Mg,  Ca, Mn, Cu, Zn and B concentrations increased, while those of NO  3  −  –  N, Al, Fe and Co did not vary significantly.  Despite a significant decline with time, concentrations of Mg, Ca and Mn at the end of the study were still  higher than in unburned soil, while those of K, Cu, Zn and B were similar to the pre-fire levels and those of  NH  4  +  –  N, P and Na were below pre-fire values.  Mulching  and  Seeding  treatments for burned soil emergency  stabilisation had significant effects on soil  δ  15  N and extractable K, Mg and Ca, while data were inconclusive  for their possible effects on the extractable Al, Fe and Co
publisher: E.U.I.T. Agrícola (UPM)
rights: https://creativecommons.org/licenses/by-nc-nd/3.0/es/
date: 2013
type: info:eu-repo/semantics/article
type: Article
source: Geoderma, ISSN 0016-7061, 2013, Vol. 195-19
type: PeerReviewed
format: application/pdf
language: eng
rights: info:eu-repo/semantics/openAccess
identifier: https://oa.upm.es/26167/