Global patterns in the sensitivity of burned area to fire-weather: Implications for climate change

Bedia, Joaquín; Herrera, Sixto; Gutiérrez, José Manuel; Benali, Akli; Brands, Swen; Mota, Bernardo; Moreno, José M.

doi:10.1016/j.agrformet.2015.09.002

Cited by 176 publications

(143 citation statements)

References 67 publications

Supporting

Mentioning

103

Contrasting

Unclassified

Order By: Relevance

“…) and subsequent increase in severe fire weather (Bedia et al. ), adequate management will be of utmost importance to ensure the persistence and sustainability of the ecosystem services currently provided by forests. We hope this review will contribute to achieving this goal.…”

Section: Outstanding Knowledge Gapsmentioning

confidence: 99%

“…, Bedia et al. ). While Mediterranean environments are characterized by a summer drought (e.g., period of limited rainfall and high evaporative demand), IPCC (Intergovenmental Panel on Climate Change) predictions forecast an increase in the duration and intensity of the summer drought (IPCC ), which could lead to extreme water scarcity, eventually enhancing tree mortality.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fire‐induced deforestation in drought‐prone Mediterranean forests: drivers and unknowns from leaves to communities

Karavani

Boer

Baudena

et al. 2018

Ecological Monographs

110

View full text Add to dashboard Cite

Over the past 15 years, 3 million hectares of forests have been converted into shrublands or grasslands in the Mediterranean countries of the European Union. Fire and drought are the main drivers underlying this deforestation. Here we present a conceptual framework for the process of fire‐induced deforestation based on the interactive effects of fire and drought across three hierarchical scales: resistance in individuals, resilience in populations, and transitions to a new state. At the individual plant level, we review the traits that confer structural and physiological resistance, as well as allow for resprouting capacity: deforestation can be initiated when established individuals succumb to fire. After individuals perish, the second step toward deforestation requires a limited resilience from the population, that is, a reduced ability of that species to regenerate after fire. If individuals die after fire and the population fails to recover, then a transition to a new state will occur. We document trade‐offs between drought survival and fire survival, as embolism resistance is negatively correlated with fire tolerance in conifers and leaf shedding or drought deciduousness, a process that decreases water consumption at the peak of the dry season, temporally increases crown flammability. Propagule availability and establishment control resilience after mortality, but different hypotheses make contrasting predictions on the drivers of post‐fire establishment. Mycorrhizae play an additional role in modulating the response by favoring recovery through amelioration of the nutritional and water status of resprouts and new germinants. So far, resprouter species such as oaks have provided a buffer against deforestation in forests dominated by obligate seeder trees, when present in high enough density in the understory. While diversifying stands with resprouters is often reported as advantageous for building resilience, important knowledge gaps exist on how floristic composition interacts with stand flammability and on the “resprouter exhaustion syndrome,” a condition where pre‐fire drought stress, or short fire return intervals, seriously restrict post‐fire resprouting. Additional attention should be paid to the onset of novel fire environments in previously fire‐free environments, such as high altitude forests, and management actions need to accommodate this complexity to sustain Mediterranean forests under a changing climate.

show abstract

Section: Outstanding Knowledge Gapsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fire‐induced deforestation in drought‐prone Mediterranean forests: drivers and unknowns from leaves to communities

Karavani

Boer

Baudena

et al. 2018

Ecological Monographs

110

View full text Add to dashboard Cite

show abstract

“…The most active world fire areas (Africa and Latin America) still require modelling efforts. We found that few studies have focused on these most active fire regions largely ignored by research (Chuvieco et al 2008;Krawchuk et al 2009;Knorr et al 2014;Bedia et al 2015), where wildfire databases are not even available (FAO 2010). Improving global wildfire databases in terms of fire location and causes of ignition is essential to have a global diagnosis of HCF occurrence around the world.…”

Section: Conclusion and Recommendationsmentioning

confidence: 99%

“…However, undetected, unreported or missing fires are a common problem in many countries, because of a lack of managerial resources and peak fire loads, differing policies on minimum reporting of fire size or fire start location in remote underpopulated regions with low values at risk (Lefort et al 2004). When field-collected fire records are unavailable, fire occurrence can be estimated from remote sensing sources such as burned area products or hotspots (Venevsky et al 2002;Vadrevu et al 2006;Maingi and Henry 2007;Chuvieco et al 2008;Garcia-Gonzalo et al 2012;Marques et al 2012;Zhang et al 2013;Li et al 2014;Bedia et al 2015;Ancog et al 2016). All models built from remote sensing data have had to consider a certain minimum fire size because of technical limitations in sensor spatial or spectral resolution, including, for example, fires .400 ha (Preisler and Westerling 2007;West et al 2016), fires .0.25 ha (Stolle et al 2003) or fires .0.1 ha (Miranda et al 2012).…”

Section: Sources Of Ignition Datamentioning

confidence: 99%

Effect of land-cover change on Africa's burnt area

Grégoire

Eva

Belward

et al. 2013

Int. J. Wildland Fire

View full text Add to dashboard Cite

Abstract. The increasing global concern about wildfires, mostly caused by people, has triggered the development of human-caused fire occurrence models in many countries. The premise is that better knowledge of the underlying factors is critical for many fire management purposes, such as operational decision-making in suppression and strategic prevention planning, or guidance on forest and land-use policies. However, the explanatory and predictive capacity of fire occurrence models is not yet widely applied to the management of forests, fires or emergencies. In this article, we analyse the developments in the field of human-caused fire occurrence modelling with the aim of identifying the most appropriate variables and methods for applications in forest and fire management and civil protection. We stratify our worldwide analysis by temporal dimension (short-term and long-term) and by model output (numeric or binary), and discuss management applications. An attempt to perform a meta-analysis based on published models proved limited because of non-equivalence of the metrics and units of the estimators and outcomes across studies, the diversity of models and the lack of information in published works.

show abstract

“…The MODIS images are geotagged and corrected for atmospheric effects, such as aerosols and clouds, and are distributed for free. Its products are commonly used for the detection of anthropogenic and natural changes in land cover and vegetation cover phenology (Bedia et al ., ; Fajardo & Gundale, ) and monitoring of spatio‐temporal dynamics of biomes (Adami et al ., ). Other MODIS sensor applications include the detection of fires (Yebra et al ., ; Huesca et al ., ), dynamic monitoring of rivers (Cerdà & Lasanta, ; Keesstra et al ., ), the estimation of biophysical properties of the Earth's surface (Wang et al ., ) and the land use and occupation (Table ).…”

Section: Introductionmentioning

confidence: 99%

Nonparametric Statistics Applied to Fire Foci Obtained by Meteorological Satellites and Their Relationship to the MCD12Q1 Product in the State of Rio de Janeiro, Southeast Brazil

et al. 2016

View full text Add to dashboard Cite

This study shows the relationship between the fire foci and the MCD12Q1 product (MODIS) for the land use and occupation in the state of Rio de Janeiro (SRJ) and evaluates the growth and decay of trends fire foci through nonparametric tests, applied to the number of fire foci in the 2000–2012 period. The study period was divided into (1) 2001 to 2013 for assessment of the product MCD12Q1 back for the land use and occupation and application of nonparametric tests and (2) 2000 to 2012 for the descriptive statistics (total and percentage‐%) of fire foci geared for regional assessment. To evaluate growth trends and decay of fire foci, the nonparametric tests (Mann–Kendall and Pettitt) were utilized. Based on data obtained by Instituto Brasileiro de Geografia e Estatística (IBGE), the land use and occupation in the SRJ has been modified from the last two census years (1995 and 2006). The Mann–Kendall test was significant for the year 2001, with trends of 0 · 19 and 0 · 08 (Mann–Kendall). Fire foci for the years 2001 and 2013 grew with an increase of 0 · 05 and 0 · 01 per year, respectively. The Pettitt statistic test applied for the year 2001 showed that almost 70% of the studied municipalities were above the critical threshold, which has not occurred for the year 2013. The North Fluminense Region with 596 fire foci (30 · 35%) was the one with the largest number of fire foci, and the municipality of Campos dos Goytacazes was the largest contributor, with 344 fire foci (57 · 72%). The Pasturage class (MCD12Q1 product) had the biggest number of fire foci, with 354 foci (56 · 64%) in 2001 and 564 foci (42 · 28%) in 2013 and the largest amount in the north of the SRJ. The study indicated that there was a significant increase in average fire foci. Copyright © 2016 John Wiley & Sons, Ltd.

show abstract

Global patterns in the sensitivity of burned area to fire-weather: Implications for climate change

Cited by 176 publications

References 67 publications

Fire‐induced deforestation in drought‐prone Mediterranean forests: drivers and unknowns from leaves to communities

Fire‐induced deforestation in drought‐prone Mediterranean forests: drivers and unknowns from leaves to communities

Effect of land-cover change on Africa's burnt area

Nonparametric Statistics Applied to Fire Foci Obtained by Meteorological Satellites and Their Relationship to the MCD12Q1 Product in the State of Rio de Janeiro, Southeast Brazil

Contact Info

Product

Resources

About