Gabriel Loguercio

• Researcher at Centro de Investigación y Extension Forestal Andino Patagónico (CIEFAP)

The mountain forests of Northern Patagonia represent a steep hydroclimatic gradient, with a udic to xeric soil water balance from west to east, alongside pronounced elevation gradients. This study aimed to elucidate forest soil formation along these interacting gradients and to disentangle the various influencing factors. We collected 45 soil profi...

Andean cypress (Austrocedrus chilensis) and coihue (Nothofagus dombeyi) grow in potentially wood-productive mixed forests, but the design of forest management schemes is still necessary. These forests have experienced extreme drought, which will be more frequent in the future. This work aimed to evaluate the coihue-Andean cypress mixed forests esti...

Aims: To explore the relationship between plant communities and key environmental drivers in the Andes of northwest Patagonia, Argentina, and to evaluate the applicability of traditional phytosociological definitions to this region. Methods: We conducted 141 vegetation samples using a stratified systematic sampling design. This was done along two s...

Rapid climate change is exposing forests worldwide to increasing stress. In the temperate forests of northern Patagonia (Argentina), increased tree mortality and stand-level dieback have been reported in recent time. However, a comprehensive understanding of how climate change is affecting native trees´ growth across this complex mountainous landsc...

Climate change is reshaping forest ecosystems, presenting urgent and complex challenges that demand attention. In this context, research that quantifies interactions between climate and forests is substantial. However, modelling at a spatial resolution relevant for ecological processes presents a significant challenge, especially given the diverse...

Introduction Forests are a crucial part of the global carbon cycle and their proper management is of high relevance for mitigating climate change. There is an urgent need to compile for each region reference data on the carbon (C) stock density and C sequestration rate of its principal forest types to support evidence-based conservation and managem...

Knowledge on mesoclimatic zonation and microclimatic variations within mountain forest ecosystems is crucial for understanding regional species turnover and effects of climate change on these systems. The temperate mountain forests in the Andean region of South America are among the largest and contiguous natural deciduous forest areas in the world...

Austrocedrus chilensis and Nothofagus dombeyi are endemic species of the Andean-Patagonian forest, which grow in pure or mixed forests. Both have an important ecological role in the region and a great productive potential. However, knowledge about how humidity and radiation influence their early development is limited. In this study, we examined th...

Natural forests and stands subjected to little to moderate human impact are continuously declining worldwide and with these, their biodiversity and ecosystem services. Many Nothofagus forests in the south of the South American continent are in a pristine state or only moderately impacted by humans. Forest grazing by livestock, in the past and still...

Los Bosques Andino Patagónicos proveen una amplia gama de servicios ecosistémicos que incluyen servicios de provisión, regulación, soporte y culturales. Estos bosques han sido utili - zados por los habitantes originales de la Patagonia, pero con la llegada de nuevos pobladores a la región a finales del siglo XIX su utilización fue creciendo con el...

La ocupación del espacio de crecimiento del dosel tiene influencia sobre el desarrollo de la regeneración natural. El índice de área foliar (IAF) del dosel es una variable que se puede utilizar en estudios ecológicos y en la toma de decisiones silviculturales para representar el espacio de crecimiento ocupado en un rodal. Es especialmente útil en b...

Austrocedrus chilensis and Nothofagus dombeyi are endemic species of the Andean-Patagonian forests of Argentina. Both species grow in either pure or mixed stands. In the last decades, several A. chilensis stands have been degraded by different disturbances that have compromised their natural regeneration. Plantation of seedlings of both species may...

Los bosques pueden aportar a la mitigación del cambio climático, dada su capacidad de capturar CO2 de la atmósfera y acumularlo en la biomasa y en el suelo. En norpatagonia existe superficies extensas de bosques secundarios postfuego que han evolucionado condicionados por la frecuencia e intensidad de incendios, la disponibilidad de especies rebrot...

A fines de la década del ‘90; y con mayor intensidad a partir del año 2000; se iniciaron en Patagonia experiencias de plantaciones de especies forestales nativas del bosque andino-patagónico con potencial maderero. La creciente degradación de los bosques naturales; debida a incendios; el uso ganadero; la ocurrencia de la enfermedad “mal del ciprés”...

Background: South America has the largest area of temperate forests in the Southern Hemisphere, which grow in diverse site conditions. The aim of this paper is to review the practices of silviculture applied and recommended for these temperate forests, and to discuss prospects to develop new silvicultural proposals to improve sustainability, adapta...

Lomatia hirsuta (Lam.) Diels is a pioneer tree species that develops after wildfires, and in advanced successional stages, it is often found as a secondary species in Patagonian forests. However, in El Manso Valley, Province of Río Negro in Western Argentina, L. hirsuta forms mature pure stands, originated from stump shoots. The wood is very attrac...

The growing space occupied by trees in a forest stand -understood as the set of site resources used by trees-, can be reasonably represented by the leaf area index (LAI). Through different silvicultural management activities, stand structure can be manipulated to provide more growing space for the most efficient components that, related to the grow...

Lomatia hirsuta (Lam.) Diels is a pioneer tree species that regenerates mostly after fire and is more frequently found as a secondary species in Patagonian forests dominated by Austrocedrus chilensis and Nothofagus dombeyi. However, in the El Manso Valley, Province of Río Negro in Western Argentina, L. hirsuta forms pure stands, originated from stu...

Austrocedrus chilensis and Nothofagus dombeyi, are endemic forest species of ecological and productive importance in the Andean-Patagonian region of Argentina. Both species grow in pure or mixed stands. In the last decades, several A. chilensis stands have been degraded by different disturbances that have compromised their natural regeneration. Pla...

In order to achieve the UN Sustainability Goals 2030 (UNSG2030), a broad range of knowledge and expertise are required, as well as consensual quality standards and scientifically aligned ways. It represents an enormous challenge to achieve a sustainable land use, and at the same time, to stop the significant changes occurred during the Holocene and...

Leaf area is an important ecophysiological and silvicultural variable for quantifying the potential production of trees, since it can represent growing space occupancy. At the stand level in mixed forests, productivity is conditioned on how growing space is distributed among different components structure, such as species and strata. In complex str...

Currently, about 70% of the forest land in Europe is covered by stands composed of two or more tree species. The similar situation can be found outside Europe too. While forest management of monocultures is well described, multispecies forests still need a better understanding to develop appropriate forest practice. Managing mixed forests can be mo...

Temperate mixed forests of South America extend mostly from 33°S to 55°S latitude and between the Pacific Ocean and the Patagonian Steppe east of the Andes Mountains. West of the Andes in Chile, in a high precipitation regime, the most diverse and large forest types develop. These forests simplify in composition and structure toward the south due t...

Andean cypress and coihue beech are endemic species of the Patagonian Andean forests of Argentina. Both species grow in either pure or mixed stands. Some pure cypress stands are affected by a root disease called “mal del ciprés,” reducing their possibilities of being managed for timber production. Coihue beech could be introduced in pure sick cypre...

Frente al paradigma clásico de un manejo forestal basado en simplificar y homogeneizar las estructuras, nuevas tendencias resaltan la importancia de mantener la variabilidad en los rodales como herramienta de adaptación de los ecosistemas frente a escenarios de cambios inciertos. Esta variabilidad otorgaría más resistencia y/o resiliencia ante la o...

El objetivo general del proyecto es desarrollar diagramas de manejo de densidad junto a la descripción narrativa para bosques de lenga de las regiones de Aysén y Magallanes, como herramientas de apoyo al manejo productivo. Se desarrolla en este documento una propuesta que apunta a complementar la actual norma de adhesión voluntaria para el tipo for...

Existe un creciente interés internacional por el manejo de bosques mixtos, debido a sus virtudes productivas y su mayor capacidad de adaptación frente a disturbios, en comparación con los monoespecíficos. La silvicultura de Austrocedrus chilensis, una conífera endémica de los bosques andinopatagónicos argentinos, está limitada por una enfermedad pr...

Forest plantations are yet at a starting point in Argentine Patagonia. Since the first pine plantations were settled in the early 1970s, landowners and local governments have been indeed interested in forestry as a means to diversifying the dominant cattle monoculture. However, climate and soil (site) attributes-driving factors of the long term rot...

OBJETIVO Determinar el efecto de la luminosidad y la disponibilidad hídrica sobre la supervivencia y crecimiento inicial de renovales de ciprés de la cordillera y coihue en vivero. CONCLUSIONES En ambas especies la humedad disponible es el factor limitante para la supervivencia. La interacción humedad-cobertura afecta el incremento diamétrico el cu...

The use of sustainable-produced timber is more friendly with the environment than that of raw materials which require high amounts of fossil energy to be produced. Plantations can satisfy the increasing demand for timber. In Patagonia, an important capital of tree plantations is being consolidated (in spite of forest fires, management lags and urba...

El uso de madera producida de manera sustentable es más amigable para el ambiente que el de materias primas cuya elaboración requiere una proporción elevada de energía fósil. La demanda de madera es creciente, y las plantaciones pueden satisfacerla. En Patagonia se está consolidando un capital importante en bosques plantados, a pesar de los incendi...

A los fines de establecer alternativas para incrementar la producción forrajera en áreas degradadas de la estepa patagónica y aprovechando las condiciones microambientales que generaría el dosel de pino ponderosa, se realizaron ensayos a campo con plantines de especies forrajeras obtenidas en invernáculo. Se utilizaron 5 especies nativas: Bromus se...

Wildland fire is a natural force that has shaped most vegetation types of the world. However, its inappropriate management during the last century has led to more frequent and catastrophic fires. Wildland fires are also recognized as one of the sources of CO2 and other greenhouse gases (GHG) that influence global climate change. As one of the techn...

La presente publicación aborda los siguientes tópicos: un capítulo que considera la descripción de los bosques en estudio y la revisión de los conceptos de degradación forestal, un segundo capítulo sobre la definición de línea base y el monitoreo de la degradación forestal que incluye un resumen de los estudios de caso de Chile y Argentina y un ter...

La forestación como alternativa para la diversificación productiva y la recuperación ambiental aparece como una de las pocas alternativas para revertir el proceso de desertificación. Pero problemas de financiamiento, los largos plazos vinculados a la producción forestal y la escasa o nula tradición forestal, dificultan la incorporación de la activi...

Forest plantations are yet at a starting point in Argentine Patagonia. Since the first pine plantations were settled in the early 1970s, landowners and local governments have been indeed interested in forestry as a means to diversifying the dominant cattle monoculture. However, climate and soil (site) attributes -driving factors of the long term ro...

En el año 2004, los alumnos de la cátedra asistidos por el equipo docente y por los técnicos de INTA trabajaron en un análisis más detallado de la información existente, proveniente principalmente de las parcelas de muestreo permanente –PMP- y de información expresamente obtenida de la remedición de dichas parcelas. Se incluyó en esa oportunidad la...

En el año 2001 los estudiantes y el personal docente de la asignatura Ordenación Forestal de la carrera de Ingeniería Forestal de la Universidad Nacional de la Patagonia San Juan Bosco (UNPSJB), conjuntamente con personal técnico de INTA desarrollaron una propuesta para actualizar el esquema de ordenación de los rodales implantados que existen en e...

Humans are influencing the global carbon (C) cycle due to the combustion of fossil fuels and due to changes in land use management. These activities are fostering the manmade greenhouse effect and thus global climate change. Negative effects for life on earth are accounted for. Among others the international climate debate focused attention on fore...

El Plan de Ordenación de la Estación Experimental Agroforestal Trevelin del Instituto Nacional de Tecnología Agropecuaria (INTA) se realizó en 1991, cuando esta zona pertenecía al hoy desaparecido Instituto Forestal Nacional (IFONA). Transcurrido ya el período de planificación de corto plazo (10 años) según consta en el Plan, debe realizarse una re...

Como parte del curso 2002 de la asignatura Ordenación Forestal, perteneciente al Departamento de Ingeniería Forestal de la Facultad de Ingeniería de la Universidad Nacional de la Patagonia San Juan Bosco se dio inicio a una investigación de cátedra que se proponía conocer el estado actual de la instrucción académica de ordenación forestal en las re...