Árboles monumentales: un patrimonio natural no reconocido en Chile

Gutiérrez, Álvaro G.

doi:10.4067/s0717-92002016000300001

Cited by 8 publications

(4 citation statements)

References 11 publications

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“…We studied three sites near the tree line (between 995 and 1145 m above sea level) in the geographical distribution of the N. pumilio forests in central Patagonian Andes, Aysén region (between 45–47° S and 71–73° W, Figure 1 and Table 1). The forests were dominated by N. pumilio , a deciduous species that can reach 37 m in height, up to 1.86 m in diameter, and 451 years old (Gutiérrez, 2016). The sites are within public protected areas, in the Trapananda National Reserve (TRAP), Cerro Castillo National Park (RCAS), and Patagonia National Park (LARG).…”

Section: Methodsmentioning

confidence: 99%

Recent increase in autumn temperature has stabilized tree growth in forests near the tree lines in Chilean Patagonia

et al. 2022

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It is widely accepted that global warming is affecting forests near the tree line by increasing tree growth in these cold-limited environments. However, since about 1970, a reduction in tree growth near the tree line has been observed in response to warming and increased drought stress. This reduction in tree growth has been mainly reported in forests of the northern hemisphere but less studied in southern forests. In this study, we investigated tree populations of Nothofagus pumilio located near the arboreal altitudinal limit in the central Patagonian Andes (45-47 S, Aysén region, Chile). In this region, warming has been accompanied by increased drought conditions since the 2000s. We explored whether this climatic variability has promoted or reduced tree growth at the regional scale in tree lines of these broadleaved temperate forests of central Patagonia. We constructed tree-ring chronologies and determined common growth patterns and trends, and then analyzed the influence of recent climate. We detected a significant change in the slope of regional growth trends between the periods 1955-1985 and 1985-2015. We found that positive growth trends in the period 1955-1985 were associated with warmer and drier springs. However, after 1985, we found a stabilization in N. pumilio growth associated with a steady increase in temperature in autumn. Our results support the idea that more frequent warm autumns, with very thin or no snow cover, have stabilized tree growth due to water deficit at the end of the growing season of N. pumilio. The predicted climate change scenario of increasing temperatures and drought in central Patagonia may increase competition among trees for water, particularly at the end of the growing season. Consequently, we could expect a decreasing forest growth trend in central Patagonia, potentially impacting forest dynamics of these southern forests.

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Section: Methodsmentioning

confidence: 99%

Recent increase in autumn temperature has stabilized tree growth in forests near the tree lines in Chilean Patagonia

et al. 2022

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“…Los árboles con características especiales han sido objeto de estudio en la mayor parte de los países del mundo. El interés que se tiene en ellos se debe a que una parte importante de la sociedad los considera de gran valor patrimonial, artístico, cultural, comercial, recreativo y ecosistémico (Gutiérrez, 2016). Dada la importancia e interés por su conservación, distintos expertos en el tema definen diferentes conceptos para su catalogación.…”

Section: Introductionunclassified

“…La preocupación por la preservación de especímenes arbóreos especiales surge porque los mismos representan un valor patrimonial, científico, artístico, cultural, comercial y además brindan servicio al medio ambiente. (Gutiérrez, 2016).…”

Section: Introductionunclassified

Evaluación de la monumentalidad de árboles urbanos en México

Velazco

Lozano

Villanueva‐Morales

et al. 2020

RMCF

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La evaluación de los árboles monumentales es una actividad importante para promover su preservación. Según la revisión bibliográfica realizada, se encontró que, actualmente, no existe una legislación clara y suficiente en México para brindar protección a este tipo de individuos arbóreos. El objetivo de esta investigación fue evaluar la monumentalidad de árboles urbanos en México, con la participación de 15 expertos en el tema. Los ejemplares evaluados fueron: "El Tule"; "El Sabino"; "El Ahuehuete"; "La Higuera"; "El Baobab"; "El Ginkgo" y "El Árbol de los Acuerdos"; todos ellos ubicados en diferentes estados del territorio mexicano. Se definieron cinco criterios para la evaluación: tamaño del árbol, estado de conservación, importancia cultural, importancia del paisaje y rareza. El establecimiento de los criterios se basó en metodologías conocidas y utilizadas en la valoración de los árboles. El método PROMETHEE II se utilizó para determinar la monumentalidad. Los resultados del estudio indicaron que el "El Tule" y el "Árbol de los Acuerdos", localizados en el estado de Oaxaca y el Estado de México, respectivamente son los árboles que tienen características particulares que los hacen destacar sobre el resto de los individuos considerados en el estudio. El valor de monumentalidad más destacado fue para "El Tule", debido a que las evaluaciones de los expertos mostraron las preferencias más altas a favor del conjunto de atributos que lo caracterizan.

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“…2019 tais árvores fornecem em pé ou com o uso direto da madeira. Sem uma ação urgente, nesse cenário de degradação ambiental crescente, as funções bióticas, ecológicas e econômicas associadas às grandes árvores correm o risco de serem completamente perdidas(GUTIÉRREZ, 2016;LINDENMAYER et al, 2013;LUTZ et al, 2018;SCIPIONI, 2018;SCIPIONI et al, 2019) Lindenmayer et al (2013). argumentam que as novas políticas e práticas são urgentemente necessárias para conservar as árvores grandes existentes no mundo, restaurando as populações ecologicamente eficazes e viáveis dessas árvores, gerenciando árvores e florestas em escalas temporais e espaciais muito mais longas do que as atualmente praticadas; bem como protegendo locais em que elas estão e os ambientes mais prováveis de seu desenvolvimento.…”

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Troncos de árvores monumentais como indicadores de degradação florestal no sul do Brasil

Scipioni

2019

Ciênc. Florest.

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Troncos de árvores monumentais como indicadores de degradação florestal no sul do BrasilMonumental tree trunks as indicators of forest degradation in southern Brazil Marcelo Callegari Scipioni I ResumoAs maiores árvores foram as primeiras a serem extraídas das florestas. Desta forma, há poucos registros dos tamanhos dos indivíduos arbóreos de grande porte, o que gera desconhecimento sobre muitas espécies ameaçadas de extinção. O objetivo desta nota técnica foi mensurar os monumentos históricos de troncos de Araucaria angustifolia e Ocotea porosa e comparar com a situação atual dos remanescentes florestais. Monumentos de troncos acima de 2 m de diâmetro foram amostrados em ambas as espécies.Os monumentos foram visitados in loco, foram obtidos os registros biométricos de perímetro do tronco por meio de amostragem preferencial. Esses foram comparados com árvores vivas catalogadas nos inventários florestais estaduais, ressaltam a perda de grandes árvores e destacam a degradação ambiental pela ausência delas. Tais monumentos de grandes árvores serviram como indicadores ambientais e são um patrimônio natural que deve ser preservado e estudado pela ciência, assim como as últimas grandes árvores na Mata Atlântica. Novas políticas públicas de catalogação de árvores de grande porte devem ser priorizadas. É também necessário que a classificação de tamanho das maiores árvores seja disponibilizada para a sociedade, visando à preservação ambiental, estudos científicos, manejo e turismo de natureza. AbstractThe largest-size trees were the first ones to be extracted from forests. There are few records of the size of individual large trees for many species threatened with extinction. The objective of this technical note was to measure the monumental-size trunks of Araucaria angustifolia and Ocotea porosa and compare them with the current size of their populations in forest remnants. Trunk sizes over 2 m in diameter were sampled for both species. The monuments were visited on site, when photographic and biometric records of trunk perimeter were obtained by preferential sampling. Comparison with the now standing trees cataloged in the state forest inventories demonstrates the loss of large-size trees and highlights the environmental degradation. Presence of monumental-size trees in the Atlantic Forest thus may serve as an environmental indicator. Monumental-size trees represent a natural heritage that must be preserved and scientifically studied. Public policies for cataloging large-size trees should be prioritized. Classification of the largest trees by size must be made available to the society to further environmental preservation, scientific studies, management and nature tourism.

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Árboles monumentales: un patrimonio natural no reconocido en Chile

Cited by 8 publications

References 11 publications

Recent increase in autumn temperature has stabilized tree growth in forests near the tree lines in Chilean Patagonia

Recent increase in autumn temperature has stabilized tree growth in forests near the tree lines in Chilean Patagonia

Evaluación de la monumentalidad de árboles urbanos en México

Troncos de árvores monumentais como indicadores de degradação florestal no sul do Brasil

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