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Fires are the most devastating anthropogenic disturbances in forests of the A ndean-Patagonian region. They severely affect surface soil physical and chemical characteristics, as well as vegetation and fauna, thus inc reasing the risk of erosion. These forests are very import ant for the conservation of biodiversity, climate and watershed regulation, and soil stability. Therefore, it is relevant to implement strategies that favour ecological restoration after a disturbanc e has occurred. Reforestation with native species is one of the most used restoration strategies in t he Andean Patagonian forests. This strategy initially depends on the availability of plants, both in terms of quality and quality. The adequate growth and development of t hese plants will determine the success of a restoration project. Aspects such as the type of substrate used for seedling production and the strategies used to plant these seedlings in the field should be carefully considered when planning restora...
Austral Ecology
Post-fire recovery occurs overwhelmingly by resprouting in the Chaco Serrano forest of Central Argentina2013 •
This study was conducted in a burned Pinus-Quercus forest in Chipinque Ecological Park (NE Mexico), where several restoration measures were implemented after a wildfire. The main objectives of the study were to evaluate the establishment of planted Pinus pseudostrobus (Lindl.) seedlings, and analyze the effect of contour-felled logs on soil retention, ten years after treatment implementation. A 35 % plantation survival rate, which is considered unacceptable, was recorded. Contour-felled logs significantly improved soil retention, increasing soil depth by 25%. We conclude that post-fire restoration measures were successful and their use in the rehabilitation of burned Pinus-Quercus forests in Sierra Madre Oriental is recommended as they contribute to the establishment of a key species and reduce soil loss. Resumen L a presente investigación se desarrolló en un bosque de Pinus-Quercus en el Parque Ecológico Chipinque (noreste de México), el cual fue afectado por un incendio forestal y sometido a tratamiento de restauración ecológica. Los objetivos fueron evaluar el establecimiento artificial de Pinus pseudostrobus (Lindl.) y analizar el efecto de las barreras de retención de suelo después de 10 años de su instalación. Para ello se estableció un área de estudio con tratamiento de restauración ecológica y otra área sin tratamiento en las que se muestreó la comunidad vegetal y la profundidad del suelo. De acuerdo con los resultados, se registró 35 % de supervivencia de la plantación, la cual se considera como no aceptable. Las barreras de retención de suelo tuvieron efecto positivo, pues incrementaron la profundidad del suelo hasta 25 %. Con la investigación se concluye que las técnicas de restauración post-incendio aplicadas han sido eficaces, ya que incorporan una especie clave de ecosistemas maduros y evitan la pérdida de suelo por arrastre, por lo que se recomienda su uso en rodales de Pinus-Quercus afectados por incendios en la Sierra Madre Oriental.
Forest Ecology and Management
Post-fire tree regeneration in lowland Bolivia: implications for fire management2002 •
Forest Ecology and Management
Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina2014 •
Ecological Engineering
Influence of fire regime on forest structure and restoration of a native forest type in the southern Andean Range2017 •
Practice, Progress, and Proficiency in Sustainability
Post-Fire Regeneration of Woody Species in a Colombian Tropical Dry Forest2020 •
In fire-influenced ecosystems, some plant species have the ability to recover, germinate, and to establish after a fire; however, their proportion and dominance varies between sites. The objective of this work was to evaluate natural regeneration following a fire in a tropical dry forest located in the Upper Magdalena River Valley in Colombia. In that way, all seedlings and saplings of woody species were recorded, 1.5 years after a fire, in 75 2x2-m plots installed in burned and unburned forest sites, as well as in forest gaps. Results showed that although abundance was higher in the burned sites, the species richness was lower than in unburned areas. Based on the regeneration response of the species, we identified three groups of plants: 1) fire-stimulated, 2) fire-tolerant, and 3) fire-sensitive species, which means that this tropical dry forest has species with the ability to recover, germinate, and establish after a fire. These three groups of plant species should be considered ...
The effects of two silvicultural treatments (fire and logging) were evaluated in this study. The effects on the tree survival, regeneration density, species richness growth rate, mortality rate of commercial and non-commercial tree species, the structure and composition of competing vegetation, and soil acidity and structural properties were evaluated in a dry tropical forest in eastern Bolivia. Seven years after logging and six years after burning, the highly disturbed fire+logging treatment had the highest mortality rate of residual stems, and the highest density of commercial tree species. However, the overall tree density was the highest in the logging treatment. Canopy openness and soil cover differed between the four treatments, and additionally four out of nine factors of the vegetation cover differed. The regeneration density, species richness and mortality of all tree species was found to differ within the four treatments. The differences in regeneration density and species richness were found to be caused by the influence of the vegetation cover. For the commercial tree species it was found to be the influence of the abiotic environment that cause the difference. These results show that different silvicultural treatments have different effects on the regeneration of commercial and non-commercial tree species.
Journal of Vegetation Science
Afforestation causes changes in post-fire regeneration in native shrubland communities of northwestern Patagonia, Argentina2007 •
Question: What are the effects of fire in native shrubland communities and in pine plantations established in these shrublands?Location: Northern Patagonia, Argentina.Methods: We surveyed four sites in Chall-Huaco valley, located in northwest Patagonia. Each site was a vegetation mosaic composed of an unburned Pinus ponderosa plantation, a plantation burned in 1996, and an unburned matorral and a matorral burned by the same fire. We recorded the cover of all vascular plant species. We also analysed species richness, total cover, proportion of exotic species, abundance of woody species and herb species, cover of exotic species, abundance of woody and herb species and differences in composition of species. For both shrubs and tree species we recorded the main strategy of regeneration (by resprouting or by seed).Results: We found that fire had different effects on native matorral and pine plantations. Five years after fire, plantations came to be dominated by herbs and exotic species, showing differences in floristic composition. In contrast, matorral communities remained very similar to unburned matorral in terms of species richness, proportion of woody species, and herb species and proportion of exotics. Also, pine plantations were primarily colonized by seedlings, while matorrals were primarily colonized by resprouting.Conclusions: Matorrals are highly fire resilient communities, and the practice of establishing plantations on matorrals produces a strong reduction in the capacity of matorral to return to its original state. The elimination of shrubs owing to the effect of plantations can hinder regeneration of native ecosystems. Burned plantations may slowly develop into ecosystems similar to the native ones, or they may produce a new ecosystem dominated by exotic herbs. This study shows that plantations of exotic conifers affect native vegetation even after they have been removed, as in this case by fire.
Modern concepts & developments in agronomy
Long-Term Fire Effects in Native Woody Species from the Argentine Chaco Region2022 •
Biochemical and Biophysical Research Communications
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Molecular Lipids Provide More Information on PCSK9 Deficiency Than LDL-Cholesterol2012 •
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