Effect of fire on herbaceous "matorral" vegetation of Central Chile

This research aimed to determine the diversity and biomass of species in burned in the Jardín Botánico Nacional of Viña del Mar (JBN), region of Valparaíso, Chile (Lat. S 33° 02’ and Long. 71° 35’ O) from April to December 2012. Three sites were selected that were located on slop...

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Autores principales: Sabadin,Patricia, Gómez,Miguel, Ginocchio,Rosanna, Peña,Iván, Mujica,Ana María, Montenegro,Gloria
Lenguaje:English
Publicado: Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2015
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000300010
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spelling oai:scielo:S0718-162020150003000102016-03-15Effect of fire on herbaceous "matorral" vegetation of Central ChileSabadin,PatriciaGómez,MiguelGinocchio,RosannaPeña,IvánMujica,Ana MaríaMontenegro,Gloria Aboveground biomass belowground biomass cover fires geophytes Oziroe arida shrub species therophytes This research aimed to determine the diversity and biomass of species in burned in the Jardín Botánico Nacional of Viña del Mar (JBN), region of Valparaíso, Chile (Lat. S 33° 02’ and Long. 71° 35’ O) from April to December 2012. Three sites were selected that were located on slopes with the same exposure: 1) site burned by fire in 2012, 2) site burned by fire in 2003, and 3) control site corresponding to an area without previous fires. Both shrub and herbaceous species were studied. The cover of shrubs, geophytes and therophytes was determined as well as the aboveground and belowground biomass of geophytes, with special attention paid to Oziroe arida. When O. arida was present, the diameter of its bulbs were studied. All information was processed by SAS software with ANOVA - analysis of 2 WAYS classification., The extensive geophyte coverage that exists in the site that was burned by fire in 2012 is due to the increased post-fire regeneration of this life-form. The biomass of geophytes is greater in the burned areas, especially during the first year after the fire (2012 site). On the site that burned in 2003, there was a higher percentage of therophyte coverage; there was no relationship found between the coverage of therophytes and the coverage of woody plants. It was determined that for each additional millimeter of diameter, there is an increase in age of 2.99 years for Oziroe arida bulbs, the most abundant geophyte in the site 1 (R²=0.78); that is, the bulb diameter will be an indicator of the age of the bulbs. This study represents the first in the country to perform a quantitative analysis of the behavior of geophytes after fires (aboveground and belowground biomass), and it concluded that the action of fire favors the regeneration of geophytes through the generation of further overhead and underground biomass, which created conditions for increased reproduction.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.42 n.3 20152015-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000300010en10.4067/S0718-16202015000300010
institution Scielo Chile
collection Scielo Chile
language English
topic Aboveground biomass
belowground biomass
cover
fires
geophytes
Oziroe arida
shrub species
therophytes
spellingShingle Aboveground biomass
belowground biomass
cover
fires
geophytes
Oziroe arida
shrub species
therophytes
Sabadin,Patricia
Gómez,Miguel
Ginocchio,Rosanna
Peña,Iván
Mujica,Ana María
Montenegro,Gloria
Effect of fire on herbaceous "matorral" vegetation of Central Chile
description This research aimed to determine the diversity and biomass of species in burned in the Jardín Botánico Nacional of Viña del Mar (JBN), region of Valparaíso, Chile (Lat. S 33° 02’ and Long. 71° 35’ O) from April to December 2012. Three sites were selected that were located on slopes with the same exposure: 1) site burned by fire in 2012, 2) site burned by fire in 2003, and 3) control site corresponding to an area without previous fires. Both shrub and herbaceous species were studied. The cover of shrubs, geophytes and therophytes was determined as well as the aboveground and belowground biomass of geophytes, with special attention paid to Oziroe arida. When O. arida was present, the diameter of its bulbs were studied. All information was processed by SAS software with ANOVA - analysis of 2 WAYS classification., The extensive geophyte coverage that exists in the site that was burned by fire in 2012 is due to the increased post-fire regeneration of this life-form. The biomass of geophytes is greater in the burned areas, especially during the first year after the fire (2012 site). On the site that burned in 2003, there was a higher percentage of therophyte coverage; there was no relationship found between the coverage of therophytes and the coverage of woody plants. It was determined that for each additional millimeter of diameter, there is an increase in age of 2.99 years for Oziroe arida bulbs, the most abundant geophyte in the site 1 (R²=0.78); that is, the bulb diameter will be an indicator of the age of the bulbs. This study represents the first in the country to perform a quantitative analysis of the behavior of geophytes after fires (aboveground and belowground biomass), and it concluded that the action of fire favors the regeneration of geophytes through the generation of further overhead and underground biomass, which created conditions for increased reproduction.
author Sabadin,Patricia
Gómez,Miguel
Ginocchio,Rosanna
Peña,Iván
Mujica,Ana María
Montenegro,Gloria
author_facet Sabadin,Patricia
Gómez,Miguel
Ginocchio,Rosanna
Peña,Iván
Mujica,Ana María
Montenegro,Gloria
author_sort Sabadin,Patricia
title Effect of fire on herbaceous "matorral" vegetation of Central Chile
title_short Effect of fire on herbaceous "matorral" vegetation of Central Chile
title_full Effect of fire on herbaceous "matorral" vegetation of Central Chile
title_fullStr Effect of fire on herbaceous "matorral" vegetation of Central Chile
title_full_unstemmed Effect of fire on herbaceous "matorral" vegetation of Central Chile
title_sort effect of fire on herbaceous "matorral" vegetation of central chile
publisher Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate 2015
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000300010
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AT gomezmiguel effectoffireonherbaceousmatorralvegetationofcentralchile
AT ginocchiorosanna effectoffireonherbaceousmatorralvegetationofcentralchile
AT penaivan effectoffireonherbaceousmatorralvegetationofcentralchile
AT mujicaanamaria effectoffireonherbaceousmatorralvegetationofcentralchile
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