Long-term decrease of organic and inorganic nitrogen concentrations due to pine forest wildfire

Growing concerns about fires and the increase of fire frequency and severity due to climate change have stimulated a large number of scientific papers about fire ecology. Most researchers have focused on the short-term effects of fire, and the knowledge about the long-term consequences of fires on e...

Full description

Bibliographic Details
Authors: Durán, Jorge, Rodríguez, Alexandra, Fernández-Palacios, José María, Gallardo, Antonio
Format: article
Status:Published version
Publication Date:2010
Country:España
Institution:Universidad de La Laguna (ULL)
Repository:RIULL. Repositorio Institucional de la Universidad de La Laguna
OAI Identifier:oai:riull.ull.es:915/18186
Online Access:http://riull.ull.es/xmlui/handle/915/18186
Access Level:Embargoed access
Keyword:dissolved organic nitrogen
labile nitrogen
microbial biomass
mineral nitrogen
Pinus canariensis
fire
nitrógeno orgánico disuelto
nitrógeno lábil
biomasa microbiana
nitrógeno mineral
fuego
id ES_e012a447897cefda86a2ca659cbe2ba6
oai_identifier_str oai:riull.ull.es:915/18186
network_acronym_str ES
network_name_str España
repository_id_str
spelling Long-term decrease of organic and inorganic nitrogen concentrations due to pine forest wildfireDurán, JorgeRodríguez, AlexandraFernández-Palacios, José MaríaGallardo, Antoniodissolved organic nitrogenlabile nitrogenmicrobial biomassmineral nitrogenPinus canariensisfirenitrógeno orgánico disueltonitrógeno lábilbiomasa microbiananitrógeno mineralfuegoGrowing concerns about fires and the increase of fire frequency and severity due to climate change have stimulated a large number of scientific papers about fire ecology. Most researchers have focused on the short-term effects of fire, and the knowledge about the long-term consequences of fires on ecosystem nutrient dynamics is still scarce. Our aim was to improve the existing knowledge about the long-term effects of wildfires on forestlabile N concentrations. We hypothesized that fires may cause an initial decline in organic and inorganic N availability, and in the amount of microbial biomass-N; this should be followed by the recovery of pre-fire N concentrations on a long-term basis. We selected a fire chronosequence in Pinus canariensis forests on La Palma Island (Canary Islands, Spain). These forests are under low anthropogenic atmospheric deposition, and forest management is completely lacking; wildfires are therefore the only significant disturbance. Soil samples were collected during the winter and spring at 22 burned and unburned plots. Fire produced a significant decrease in microbial biomass N, mineral N and dissolved organic N. Almost 20 y after fire, pre-fire levels of N concentrations had not recovered. These results demonstrate that P. canariensis forest soils have a lower resilience against fire than expected. The magnitude of these observed changes suggests that pine forest wildfires may induce long-term (2 decades) changes in soil and in plant primary production.Ministerio de Ciencia y TecnologíaSpringer Verlag202020202010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://riull.ull.es/xmlui/handle/915/18186reponame:RIULL. Repositorio Institucional de la Universidad de La Lagunainstname:Universidad de La Laguna (ULL)InglésAnnals of Forest Science, Vol. 67, N. 2, 2010;REN 2003-08620- C0201CGL 2006-13665-C02-01Attribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/embargoedAccessoai:riull.ull.es:915/181862026-06-22T13:13:57Z
dc.title.none.fl_str_mv Long-term decrease of organic and inorganic nitrogen concentrations due to pine forest wildfire
title Long-term decrease of organic and inorganic nitrogen concentrations due to pine forest wildfire
spellingShingle Long-term decrease of organic and inorganic nitrogen concentrations due to pine forest wildfire
Durán, Jorge
dissolved organic nitrogen
labile nitrogen
microbial biomass
mineral nitrogen
Pinus canariensis
fire
nitrógeno orgánico disuelto
nitrógeno lábil
biomasa microbiana
nitrógeno mineral
fuego
title_short Long-term decrease of organic and inorganic nitrogen concentrations due to pine forest wildfire
title_full Long-term decrease of organic and inorganic nitrogen concentrations due to pine forest wildfire
title_fullStr Long-term decrease of organic and inorganic nitrogen concentrations due to pine forest wildfire
title_full_unstemmed Long-term decrease of organic and inorganic nitrogen concentrations due to pine forest wildfire
title_sort Long-term decrease of organic and inorganic nitrogen concentrations due to pine forest wildfire
dc.creator.none.fl_str_mv Durán, Jorge
Rodríguez, Alexandra
Fernández-Palacios, José María
Gallardo, Antonio
author Durán, Jorge
author_facet Durán, Jorge
Rodríguez, Alexandra
Fernández-Palacios, José María
Gallardo, Antonio
author_role author
author2 Rodríguez, Alexandra
Fernández-Palacios, José María
Gallardo, Antonio
author2_role author
author
author
dc.subject.none.fl_str_mv dissolved organic nitrogen
labile nitrogen
microbial biomass
mineral nitrogen
Pinus canariensis
fire
nitrógeno orgánico disuelto
nitrógeno lábil
biomasa microbiana
nitrógeno mineral
fuego
topic dissolved organic nitrogen
labile nitrogen
microbial biomass
mineral nitrogen
Pinus canariensis
fire
nitrógeno orgánico disuelto
nitrógeno lábil
biomasa microbiana
nitrógeno mineral
fuego
description Growing concerns about fires and the increase of fire frequency and severity due to climate change have stimulated a large number of scientific papers about fire ecology. Most researchers have focused on the short-term effects of fire, and the knowledge about the long-term consequences of fires on ecosystem nutrient dynamics is still scarce. Our aim was to improve the existing knowledge about the long-term effects of wildfires on forestlabile N concentrations. We hypothesized that fires may cause an initial decline in organic and inorganic N availability, and in the amount of microbial biomass-N; this should be followed by the recovery of pre-fire N concentrations on a long-term basis. We selected a fire chronosequence in Pinus canariensis forests on La Palma Island (Canary Islands, Spain). These forests are under low anthropogenic atmospheric deposition, and forest management is completely lacking; wildfires are therefore the only significant disturbance. Soil samples were collected during the winter and spring at 22 burned and unburned plots. Fire produced a significant decrease in microbial biomass N, mineral N and dissolved organic N. Almost 20 y after fire, pre-fire levels of N concentrations had not recovered. These results demonstrate that P. canariensis forest soils have a lower resilience against fire than expected. The magnitude of these observed changes suggests that pine forest wildfires may induce long-term (2 decades) changes in soil and in plant primary production.
publishDate 2010
dc.date.none.fl_str_mv 2010
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://riull.ull.es/xmlui/handle/915/18186
url http://riull.ull.es/xmlui/handle/915/18186
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Annals of Forest Science, Vol. 67, N. 2, 2010;
REN 2003-08620- C0201
CGL 2006-13665-C02-01
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/embargoedAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv embargoedAccess
dc.publisher.none.fl_str_mv Springer Verlag
publisher.none.fl_str_mv Springer Verlag
dc.source.none.fl_str_mv reponame:RIULL. Repositorio Institucional de la Universidad de La Laguna
instname:Universidad de La Laguna (ULL)
instname_str Universidad de La Laguna (ULL)
reponame_str RIULL. Repositorio Institucional de la Universidad de La Laguna
collection RIULL. Repositorio Institucional de la Universidad de La Laguna
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869422145124171776
score 15,301603

Similar Items