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Fire Activity in Mediterranean Forests (The Algerian Case)

INRAE UMR RECOVER, Aix Marseille Univ, 3275 Route Cézanne-CS 4006, CEDEX 05, 13182 Aix-en-Provence, France
Laboratoire de Recherche en Ecologie et Environnement, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
Université Grenoble Alpes-INRAE, LESSEM, 38000 Grenoble, France
Author to whom correspondence should be addressed.
Received: 17 August 2020 / Revised: 28 September 2020 / Accepted: 29 September 2020 / Published: 30 September 2020
Algeria has high wildfire activity, albeit restricted to the northern coastal fringe. However, no study has investigated why fire is restricted to that area, and what combination of factors explains the occurrence of wildfires. Here, we describe the current fire regime of Northern Algeria from 2000 to 2019 and we correlate fire activity to a range of environmental and anthropic drivers. We found a strong north–south gradient in fire occurrence: it is maximal in the high-fueled (productive) oak forests of Northern Algeria with high annual rainfall amount, whereas it is fuel-limited in the South due to semi-arid conditions. We determined that fire is nearly absent where the bioclimate is subarid or arid, due to the steppic vegetation with summer Normalized Difference Vegetation Index (NDVI) values below 0.35. Therefore, fire occupies a narrow niche in space (the humid and subhumid areas with high productivity) and in time as most fires occur in summer after the high rainfalls from fall to spring that promote fuel growth. Humans also play a role as fire hotspots are concentrated in croplands and in built-up areas with high human density and infrastructures mixed with shrublands and forests. We discuss how the ongoing climate changes and the desertification progressing towards the North of Algeria may finally restrict forests to a narrow fringe providing less and less ecological services to the Algerian people. View Full-Text
Keywords: Mediterranean forests; fire niche; fuel limitation; fuel productivity; MODIS MCD64A1v006 Mediterranean forests; fire niche; fuel limitation; fuel productivity; MODIS MCD64A1v006
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MDPI and ACS Style

Curt, T.; Aini, A.; Dupire, S. Fire Activity in Mediterranean Forests (The Algerian Case). Fire 2020, 3, 58.

AMA Style

Curt T, Aini A, Dupire S. Fire Activity in Mediterranean Forests (The Algerian Case). Fire. 2020; 3(4):58.

Chicago/Turabian Style

Curt, Thomas, Aissa Aini, and Sylvain Dupire. 2020. "Fire Activity in Mediterranean Forests (The Algerian Case)" Fire 3, no. 4: 58.

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