Early individual growth of Eucryphia cordifolia and Laurelia sempervirens planted under different competition conditions in south-central Chile

Few studies have focused on forest research in plantations with Chilean native species midtolerant to shade. Such species may use resources that intolerant species cannot, increasing the total site productivity. This study aimed to define the factors that explain the growth of Euctyphia cordifolia C...

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Autores principales:	Uteau,Daniel, Donoso,Pablo J
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2009
Materias:	Competitionindex forest growth growing space polygon crown competition midtolerant species silviculture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000100008
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spelling	oai:scielo:S0718-162020090001000082009-04-29Early individual growth of Eucryphia cordifolia and Laurelia sempervirens planted under different competition conditions in south-central ChileUteau,DanielDonoso,Pablo J Competitionindex forest growth growing space polygon crown competition midtolerant species silviculture Few studies have focused on forest research in plantations with Chilean native species midtolerant to shade. Such species may use resources that intolerant species cannot, increasing the total site productivity. This study aimed to define the factors that explain the growth of Euctyphia cordifolia Cav. and Laurelia sempervirens (Ruiz et Pavón) Tul., two midtolerant species of southern Chile. We sought to determine the effect on these species of competition in mixed-species plantations. At the time of this study, the plantations were 4 to 22 years old . Two competition indices were analyzed for each species: the Growing Space Polygon (GSP) and the Canopy Overlap (CO). The GSP proved to be very useful in predicting the growth in the older plantations where E. cordifolia and L. sempervirens had their crowns below the main canopy, suggesting strong competition for water and nutnents (also called symmetric competition). In contrast, in young plantations (around 10 years old ), growth was better explained by CO, suggesting that competition occurs mainly for light (also called asymmetric competition). Silvicultural techniques that could improve the growth of these species in mixed plantations were proposed, such as an earlier thinning entry to provide these species with more room for light, as dictated by their intermediate tolerance to shade.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.36 n.1 20092009-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000100008en10.4067/S0718-16202009000100008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Competitionindex forest growth growing space polygon crown competition midtolerant species silviculture
spellingShingle	Competitionindex forest growth growing space polygon crown competition midtolerant species silviculture Uteau,Daniel Donoso,Pablo J Early individual growth of Eucryphia cordifolia and Laurelia sempervirens planted under different competition conditions in south-central Chile
description	Few studies have focused on forest research in plantations with Chilean native species midtolerant to shade. Such species may use resources that intolerant species cannot, increasing the total site productivity. This study aimed to define the factors that explain the growth of Euctyphia cordifolia Cav. and Laurelia sempervirens (Ruiz et Pavón) Tul., two midtolerant species of southern Chile. We sought to determine the effect on these species of competition in mixed-species plantations. At the time of this study, the plantations were 4 to 22 years old . Two competition indices were analyzed for each species: the Growing Space Polygon (GSP) and the Canopy Overlap (CO). The GSP proved to be very useful in predicting the growth in the older plantations where E. cordifolia and L. sempervirens had their crowns below the main canopy, suggesting strong competition for water and nutnents (also called symmetric competition). In contrast, in young plantations (around 10 years old ), growth was better explained by CO, suggesting that competition occurs mainly for light (also called asymmetric competition). Silvicultural techniques that could improve the growth of these species in mixed plantations were proposed, such as an earlier thinning entry to provide these species with more room for light, as dictated by their intermediate tolerance to shade.
author	Uteau,Daniel Donoso,Pablo J
author_facet	Uteau,Daniel Donoso,Pablo J
author_sort	Uteau,Daniel
title	Early individual growth of Eucryphia cordifolia and Laurelia sempervirens planted under different competition conditions in south-central Chile
title_short	Early individual growth of Eucryphia cordifolia and Laurelia sempervirens planted under different competition conditions in south-central Chile
title_full	Early individual growth of Eucryphia cordifolia and Laurelia sempervirens planted under different competition conditions in south-central Chile
title_fullStr	Early individual growth of Eucryphia cordifolia and Laurelia sempervirens planted under different competition conditions in south-central Chile
title_full_unstemmed	Early individual growth of Eucryphia cordifolia and Laurelia sempervirens planted under different competition conditions in south-central Chile
title_sort	early individual growth of eucryphia cordifolia and laurelia sempervirens planted under different competition conditions in south-central chile
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000100008
work_keys_str_mv	AT uteaudaniel earlyindividualgrowthofeucryphiacordifoliaandlaureliasempervirensplantedunderdifferentcompetitionconditionsinsouthcentralchile AT donosopabloj earlyindividualgrowthofeucryphiacordifoliaandlaureliasempervirensplantedunderdifferentcompetitionconditionsinsouthcentralchile
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Early individual growth of Eucryphia cordifolia and Laurelia sempervirens planted under different competition conditions in south-central Chile

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