Nothofagus pumilio forest affected by recent tephra deposition in northern Patagonia. I- Environmental traits influencing seedling growth

Abstract The 2011 Puyehue-Cordón Caulle volcanic eruption left vast areas of Nothofagus pumilio forests covered by high volumes of tephra, which buried the understory. This event offered a unique opportunity to analyse the impact of recent tephra deposition and the main environmental factors affecti...

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Autores principales:	Moguilevsky,Denise., Fernández,Natalia V., Cornejo,Pablo E., Puntieri,Javier G., Fontenla,Sonia B.
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2018
Materias:	Nothofagus pumilio forest ecology high-magnitude disturbance tephra volcanic eruption seedling development
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000200487
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spelling	oai:scielo:S0718-951620180002004872018-11-21Nothofagus pumilio forest affected by recent tephra deposition in northern Patagonia. I- Environmental traits influencing seedling growthMoguilevsky,Denise.Fernández,Natalia V.Cornejo,Pablo E.Puntieri,Javier G.Fontenla,Sonia B. Nothofagus pumilio forest ecology high-magnitude disturbance tephra volcanic eruption seedling development Abstract The 2011 Puyehue-Cordón Caulle volcanic eruption left vast areas of Nothofagus pumilio forests covered by high volumes of tephra, which buried the understory. This event offered a unique opportunity to analyse the impact of recent tephra deposition and the main environmental factors affecting the growth of N. pumilio seedlings. To this end, three study sites were selected and sampled three years after the eruption, two with a thick tephra layer (50 cm) but with different tree conditions: i) most trees alive or ii) most trees dead, and a third site, iii) with minimal tephra deposition. From each site, five N. pumilio 18-month-old seedlings were collected, morphometrically measured (shoot, epicotyl and main root length; shoot, epicotyl and root collar diameter), and environmental factors were also registered (light intensity, soil pH and conductivity, available P, bulk and particle soil density, and porosity). The main results indicated that three years after eruption the site with tephra deposition and dead trees (the most near to the crater) had the biggest seedlings, the lowest pH and the highest values for available P and light intensity. This temporally unique geological event showed that the regeneration potentiality of N. pumilio is high when environmental factors allow direct incident light on a substrate with high mineral content, even when the environment has previously been subjected to a significant degree of disturbance. Given the recurrence of volcanic events in Northern Patagonia, this subject merits further long-term study.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.18 n.2 20182018-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000200487en10.4067/S0718-95162018005001502
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Nothofagus pumilio forest ecology high-magnitude disturbance tephra volcanic eruption seedling development
spellingShingle	Nothofagus pumilio forest ecology high-magnitude disturbance tephra volcanic eruption seedling development Moguilevsky,Denise. Fernández,Natalia V. Cornejo,Pablo E. Puntieri,Javier G. Fontenla,Sonia B. Nothofagus pumilio forest affected by recent tephra deposition in northern Patagonia. I- Environmental traits influencing seedling growth
description	Abstract The 2011 Puyehue-Cordón Caulle volcanic eruption left vast areas of Nothofagus pumilio forests covered by high volumes of tephra, which buried the understory. This event offered a unique opportunity to analyse the impact of recent tephra deposition and the main environmental factors affecting the growth of N. pumilio seedlings. To this end, three study sites were selected and sampled three years after the eruption, two with a thick tephra layer (50 cm) but with different tree conditions: i) most trees alive or ii) most trees dead, and a third site, iii) with minimal tephra deposition. From each site, five N. pumilio 18-month-old seedlings were collected, morphometrically measured (shoot, epicotyl and main root length; shoot, epicotyl and root collar diameter), and environmental factors were also registered (light intensity, soil pH and conductivity, available P, bulk and particle soil density, and porosity). The main results indicated that three years after eruption the site with tephra deposition and dead trees (the most near to the crater) had the biggest seedlings, the lowest pH and the highest values for available P and light intensity. This temporally unique geological event showed that the regeneration potentiality of N. pumilio is high when environmental factors allow direct incident light on a substrate with high mineral content, even when the environment has previously been subjected to a significant degree of disturbance. Given the recurrence of volcanic events in Northern Patagonia, this subject merits further long-term study.
author	Moguilevsky,Denise. Fernández,Natalia V. Cornejo,Pablo E. Puntieri,Javier G. Fontenla,Sonia B.
author_facet	Moguilevsky,Denise. Fernández,Natalia V. Cornejo,Pablo E. Puntieri,Javier G. Fontenla,Sonia B.
author_sort	Moguilevsky,Denise.
title	Nothofagus pumilio forest affected by recent tephra deposition in northern Patagonia. I- Environmental traits influencing seedling growth
title_short	Nothofagus pumilio forest affected by recent tephra deposition in northern Patagonia. I- Environmental traits influencing seedling growth
title_full	Nothofagus pumilio forest affected by recent tephra deposition in northern Patagonia. I- Environmental traits influencing seedling growth
title_fullStr	Nothofagus pumilio forest affected by recent tephra deposition in northern Patagonia. I- Environmental traits influencing seedling growth
title_full_unstemmed	Nothofagus pumilio forest affected by recent tephra deposition in northern Patagonia. I- Environmental traits influencing seedling growth
title_sort	nothofagus pumilio forest affected by recent tephra deposition in northern patagonia. i- environmental traits influencing seedling growth
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000200487
work_keys_str_mv	AT moguilevskydenise nothofaguspumilioforestaffectedbyrecenttephradepositioninnorthernpatagoniaienvironmentaltraitsinfluencingseedlinggrowth AT fernandeznataliav nothofaguspumilioforestaffectedbyrecenttephradepositioninnorthernpatagoniaienvironmentaltraitsinfluencingseedlinggrowth AT cornejopabloe nothofaguspumilioforestaffectedbyrecenttephradepositioninnorthernpatagoniaienvironmentaltraitsinfluencingseedlinggrowth AT puntierijavierg nothofaguspumilioforestaffectedbyrecenttephradepositioninnorthernpatagoniaienvironmentaltraitsinfluencingseedlinggrowth AT fontenlasoniab nothofaguspumilioforestaffectedbyrecenttephradepositioninnorthernpatagoniaienvironmentaltraitsinfluencingseedlinggrowth
_version_	1714206583107354624

Nothofagus pumilio forest affected by recent tephra deposition in northern Patagonia. I- Environmental traits influencing seedling growth

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