Repositorio
Institucional

Moguilevsky, Denise

Fernandez, 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

SPRINGER INT PUBL AG

JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION

en

The 2011 Puyehue-Cordon 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.

Artículo original

We are grateful to Mr. Jorge Puga and Lic. Pablo Albear for collaborating in the sampling, to Lic. Ayelen Carron, Lic. Juan Eizaguirre, Lic. Rubi Duo Saito and Dr. Marina Stecconi for their helpful collaboration. We also thank BSc. (Hons) Audrey Urquhart for language revision and to National Park Administration for giving us permission to work in a protected area (Permission No 1280/17). Financial support for this work was provided by grants: B200 (UNComahue), PICT2014-1459 (FONCyT), PIA14081 (Programa de Sustentabilidad y Competitividad Forestal, BID 2853/OC-AR) and the binational Project CH/13/01-PCCI130008 MINCyT (Argentina)-CONICYT (Chile). Lic. D. Moguilevsky was supported by a CONICET Ph. D. fellowship.

Agradecemos al Sr. Jorge Puga y al Lic. Pablo Albear por su colaboración en el muestreo, a la Lic. Ayelen Carron, al Lic. Juan Eizaguirre, al Lic. Rubi Duo Saito y a la Dra. Marina Stecconi por su valiosa colaboración. También agradecemos a la BSc. (Hons) Audrey Urquhart por la revisión del texto y a la Administración del Parque Nacional por darnos permiso para trabajar en un área protegida (Permiso No 1280/17). El apoyo financiero para este trabajo fue proporcionado por las subvenciones: B200 (UNComahue), PICT2014-1459 (FONCyT), PIA14081 (Programa de Sustentabilidad y Competitividad Forestal, BID 2853/OC-AR) y el Proyecto binacional CH/13/01-PCCI130008 MINCyT (Argentina)-CONICYT (Chile). El Lic. D. Moguilevsky recibió una beca de doctorado del CONICET.

10.4067/S0718-95162018005001502

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Nothofagus pumilio# forest ecology# high-magnitude disturbance# tephra# volcanic eruption# seedling development

http://dx.doi.org/10.4067/S0718-95162018005001502

Plant Sciences# Environmental Sciences# Soil Science

Nothofagus pumilio# ecología forestal# perturbación de alta magnitud# tefra# erupción volcánica# desarrollo de plántulas

Silvicultura

Ecología

Vulcanología

WOS:000441184300014

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

Artículo original

version publicada

SPRINGER INT PUBL AG

JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION

Ciencias Vegetales# Ciencias Ambientales# Ciencia del suelo

0718-9508

en

UNComahue B200#FONCyT PICT2014-1459#FONCyT PIA14081#FONCyT BID 2853/OC-AR#MINCyT CH/13/01-PCCI130008

UNComahue [B200]

FONCyT PICT2014-1459

Programa de Sustentabilidad y Competitividad Forestal PIA14081

Programa de Sustentabilidad y Competitividad Forestal BID 2853/OC-AR

MINCyT - ANID CONICYT CH/13/01-PCCI130008

CONICET

We are grateful to Mr. Jorge Puga and Lic. Pablo Albear for collaborating in the sampling, to Lic. Ayelen Carron, Lic. Juan Eizaguirre, Lic. Rubi Duo Saito and Dr. Marina Stecconi for their helpful collaboration. We also thank BSc. (Hons) Audrey Urquhart for language revision and to National Park Administration for giving us permission to work in a protected area (Permission No 1280/17). Financial support for this work was provided by grants: B200 (UNComahue), PICT2014-1459 (FONCyT), PIA14081 (Programa de Sustentabilidad y Competitividad Forestal, BID 2853/OC-AR) and the binational Project CH/13/01-PCCI130008 MINCyT (Argentina)-CONICYT (Chile). Lic. D. Moguilevsky was supported by a CONICET Ph. D. fellowship.

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