Ecological Impact of Forest Fires and Subsequent Restoration in Chile

Valderrama, Luz Teresa Valderrama; Contreras-Reyes, Javier E.; Carrasco, Raúl

doi:10.3390/resources7020026

Cited by 17 publications

(8 citation statements)

References 18 publications

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“…Biomass burning is a major concern to environmental health and sustainability. In addition to detrimental climatic (Z. Liu et al, 2019; Randerson et al, 2006) and ecological (Valderrama et al, 2018) impacts, burning can release large quantities of pollutants that negatively affect public health (Haikerwal et al, 2015). Emitted species include black (BC) and organic (OC) carbonaceous aerosol (Tang & Arellano, 2017) that are primary components of fine particulate matter (PM 2.5 ), a pollutant associated with an increased risk of premature death (Burnett et al, 2014) and ranked as the sixth leading mortality risk factor globally in 2015 (Cohen et al, 2017; Forouzanfar et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Premature Deaths in Brazil Associated With Long‐Term Exposure to PM_2.5 From Amazon Fires Between 2016 and 2019

Nawaz

Henze

2020

GeoHealth

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Amazonian deforestation from slash‐and‐burn practices is a significant contributor to biomass burning within Brazil. Fires emit carbonaceous aerosols that negatively impact human health by increasing fine particulate matter (PM2.5) exposure. These negative effects on health compound the already detrimental climatological and ecological impacts. Despite high biomass burning emissions in Brazil and the international attention drawn by the relaxation of Amazon protections in 2019, little is known about the health impacts from PM2.5 exposure attributable to these fires. We estimate PM2.5‐related premature deaths in Brazil associated with biomass burning, focusing on temporal, interannual, and spatial trends. We find that during the fire season of 2019, 4,966 (2,427, 8,340) premature deaths were attributable to fire emissions making up 10% (5, 17) of all PM2.5‐related premature deaths in Brazil. Between the 2019 and 2018 seasons, fire emissions increased by 1.37 Tg (1.00, 2.18) or 115% (60, 201), which was responsible for an increase in health impacts of 2,109 (965, 3,623) premature deaths or 74% (54, 98). Biomass burning emissions throughout Brazil contribute significantly to premature deaths, with the largest burning events occurring in northwestern Brazil. The impact of fires on PM2.5‐related premature deaths is highest in heavily populated regions despite their fires being 1 to 2 orders of magnitude smaller than the largest burning events. Results from this study characterize the extent to which elevated PM2.5 exposure levels owing to fires affect public health in Brazil and present an additional, public health‐focused, support for increased Amazon protections.

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Section: Introductionmentioning

confidence: 99%

Premature Deaths in Brazil Associated With Long‐Term Exposure to PM_2.5 From Amazon Fires Between 2016 and 2019

Nawaz

Henze

2020

GeoHealth

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“…Para evitar los efectos adversos de los incendios forestales han de considerarse, por un lado, las medidas de prevención, y por otro, aquellas relacionadas con la supresión y la mitigación (Martínez-Torres et al, 2015;Rodríguez Trejo, 2014;Sande Silva et al, 2010 distinción entre prevención cultural (incluyendo medidas de divulgación y concientización), prevención física o ingenieril (medidas como las brechas cortafuegos, la remoción mecánica de material combustible o también las quemas controladas mencionadas anteriormente) y prevención jurídica o legal (leyes y reglamentos en torno al uso del fuego y su aplicación); y la diferenciación de las actividades de mitigación en la detección de los incendios y el combate. El monitoreo y la restauración de las zonas quemadas también deben atenderse (Martínez-Torres et al, 2015;Valderrama et al, 2018). Evers (2020) además menciona como aspectos propios, el entrenamiento, la investigación, la planeación y la administración de las acciones de la gestión del fuego.…”

Section: Marco Teórico Conceptual 21 La Gestión Del Fuegounclassified

Configuración territorial de los actores sociales involucrados en la gestión del fuego en la sierra de Los Tuxtlas (México)

Neger

2021

BAGE

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En los últimos años, han cobrado importancia los estudios que resaltan el papel de los diferentes actores sociales que participan en la gestión del fuego. Recientemente, algunos trabajos también han incorporado una visión geográfica, indagando en los aspectos territoriales de la gestión. No obstante, hasta la fecha, existe una carencia de investigaciones de esta índole en las zonas tropicales del mundo. El presente trabajo pretende contribuir a subsanar parcialmente esta laguna de conocimiento, analizando la situación en los últimos años (2016 a 2020) en la sierra de Los Tuxtlas, México, un área con una notable incidencia de incendios forestales. Para ello, se han revisado datos oficiales y se han efectuado entrevistas con representantes de los actores involucrados. El procesamiento de los datos ha incluido el análisis de textos que revela las diversas actividades realizadas por los actores. Para profundizar en la comprensión de la configuración territorial de los actores, se presenta una cartografía de la geografía organizativa y de las redes de cooperación. Se demuestran áreas con una presencia destacada de diferentes actores y una densa red social pero también otras zonas con poca o nula actividad y se discuten las razones de esta configuración.

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“…The change point criterion requires a time series of weekly length averages to estimate benchmarks which allow triggering decision rules [10,11]. Previously, this criterion had been used to detect changes in environmental trends [12] and reproductive biological indices such as the gonadosomatic and condition factor in anchovy (Engraulis ringens) [13][14][15].…”

Section: Change Point Criterionmentioning

confidence: 99%

Possible Criterion to Estimate the Juvenile Reference Length of Common Sardine (Strangomera bentincki)off Central-Southern Chile

Walker

Aranís

Contreras-Reyes

2018

JMSE

Self Cite

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In the last century, the growing evidence that global fisheries are depleting natural resources much faster than they can recover has led to negative processes, like overfishing, being addressed with increasingly complex models and thus mitigating or regulating actions that aim to protect stocks. Said negative processes contain two components: (i) they can diminish the reproductive potential of fish stocks, called over exploitation by recruitment, and (ii) the effect of early capture prevents the full realization of the growth potential, called overfishing by growth. In this article, the structure of common sardine sizes is analyzed. Due to the precise moment in which pre-recruits are incorporated into the exploited phase of the stock is unknown, the estimation of a recruitment size is a hard problem. This problem is addressed by modeling the mean size via a stochastic process, applying models of structural change. A time series (2001-2015) was analyzed on a weekly time scale based on the size structure of the pelagic fishery landings in the central-southern zone of Chile (32 • 10-40 • 14 LS), from the V. to the XIV. Region. Specifically, the evolution of sizes according to macro-zones was studied for the conglomerates identified in two sub-zones, the V.-VIII. and IX.-XIV. Regions. In this context, the reference size for juveniles to cautiously allow the recruitment process of the common sardine from the central-southern zone of Chile was estimated, and the behavior of these sizes was spatially analyzed. Finally, a statistical inferential criterion was established that confirms the mean size of juveniles with a certain margin of error, which allows nonetheless later on to define a fraction that could be protected to avoid overfishing by growth.

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Ecological Impact of Forest Fires and Subsequent Restoration in Chile

Cited by 17 publications

References 18 publications

Premature Deaths in Brazil Associated With Long‐Term Exposure to PM_2.5 From Amazon Fires Between 2016 and 2019

Premature Deaths in Brazil Associated With Long‐Term Exposure to PM_2.5 From Amazon Fires Between 2016 and 2019

Configuración territorial de los actores sociales involucrados en la gestión del fuego en la sierra de Los Tuxtlas (México)

Possible Criterion to Estimate the Juvenile Reference Length of Common Sardine (Strangomera bentincki)off Central-Southern Chile

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Ecological Impact of Forest Fires and Subsequent Restoration in Chile

Cited by 17 publications

References 18 publications

Premature Deaths in Brazil Associated With Long‐Term Exposure to PM2.5 From Amazon Fires Between 2016 and 2019

Premature Deaths in Brazil Associated With Long‐Term Exposure to PM2.5 From Amazon Fires Between 2016 and 2019

Configuración territorial de los actores sociales involucrados en la gestión del fuego en la sierra de Los Tuxtlas (México)

Possible Criterion to Estimate the Juvenile Reference Length of Common Sardine (Strangomera bentincki)off Central-Southern Chile

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Product

Resources

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Premature Deaths in Brazil Associated With Long‐Term Exposure to PM_2.5 From Amazon Fires Between 2016 and 2019

Premature Deaths in Brazil Associated With Long‐Term Exposure to PM_2.5 From Amazon Fires Between 2016 and 2019