Contribution of remote sensing and GIS to mapping the fire risk of Mediterranean forest case of the forest massif of Tle
- PDF / 4,270,480 Bytes
- 21 Pages / 439.37 x 666.142 pts Page_size
- 41 Downloads / 169 Views
Contribution of remote sensing and GIS to mapping the fire risk of Mediterranean forest case of the forest massif of Tlemcen (North‑West Algeria) Nadjla Bentekhici1 · Sid‑Ahmed Bellal2 · Ahmed Zegrar1 Received: 30 December 2019 / Accepted: 16 July 2020 © Springer Nature B.V. 2020
Abstract Forest fires are one of the major environmental problems that cause harmful economic and ecological damage. The Algerian forest and in particular the Tlemcen forest massif where the national park is located are very affected by the repetition and the danger of fires. We count 1600 fire starts recorded during the period from 1980 to 2015. This situation is influenced by the ecotourism status and the high human accessibility, in the forest area as well as the significant development of road infrastructure in the middle of the forest. Noting also the characteristics of the plant formations and topographical in the area seriously promote the flammability and combustibility of the vegetation. Faced with this problem, it is necessary to protect the Tlemcen forest massif by mapping the risk zoning of forest fires. In order to achieve this objective, we followed an approach inspired by the Turkish model developed by Erten et al. (In: XXth ISPRS congress, youth forum, July 12–23, 2004, Istanbul, Turkey, pp 33–39, 2004) and based on the multi-criteria analysis method AHP with a hierarchical combination of six parameters, ecological, topographic and human on the one hand, and a classification of these parameters according to their sensitivities to fires on the other hand. This uses remote sensing data and GIS tools. The results obtained gave five risk classes (very low, low, medium, high and very high); the high and very high risk occupy 48.27% of the total surface studied. The validation of these results was made by the multitemporal analysis of satellite images dating from 2001 to 2017 and the superimposition of the burnt spaces detected on the fire risk map. The final documents provide valuable assistance to decision-makers and facilitate the protection and sustainable management of forests. Keywords Fire · Mediterranean forest · Risk · AHP model · GIS · Remote sensing
* Nadjla Bentekhici [email protected]; [email protected] 1
Earth Observation Department, Space Techniques Center (CTS), Algerian Space Agency (ASAL), BP13, Arzew 31200, Algeria
2
Department of Geography and Spatial Planning, Faculty of Earth and Universe Sciences, University of Oran 2, Oran 31000, Algeria
13
Vol.:(0123456789)
Natural Hazards
1 Introduction Algeria is among the Mediterranean countries most affected by forest fire problems; during the years 2008 to 2017, 320,000 ha of forest areas were destroyed by fires, which is an annual average of 31, 300 ha, according to the assessment of the General Directorate of Forests (DGF) in 2018. Burnt forests cover an area of 155,270 ha, scrub land 85,388 ha and brush 79,751 ha. The region most affected by these fires is western Algeria, which has recorded about 193,647 ha of burned forest area. Th
Data Loading...
