Analysis of principal parameters of forest fires and identification of desertification process in semi-arid land in Algeria

Ahmed Zegrar

doi:10.1117/12.2028319

24 October 2013 Analysis of principal parameters of forest fires and identification of desertification process in semi-arid land in Algeria

Ahmed Zegrar

Author Affiliations +

Proceedings Volume 8893, Earth Resources and Environmental Remote Sensing/GIS Applications IV; 889316 (2013) https://doi.org/10.1117/12.2028319
Event: SPIE Remote Sensing, 2013, Dresden, Germany

Abstract

In semi arid land in Algeria the ecosystem of steppe presents a different vegetal formation, generally used for pasture, and the forest are in most time composed by species like Aleppo pine sparse. And seen climatic unfavourable conditions in zone and impact of forest fires; we notes deterioration of physical environment particularly, deterioration of natural forest. This deterioration of forests provokes an unbalance of environment witch provokes a process of deterioration advanced in the ultimate stadium is desertification. The specific regeneration of plants are influenced greatly by the regime of fire (season of fire, intensity, interval), who leads to the recuperation of the vegetation of meadow- fire, but in the most case there are unfavourable climatic conditions. In this survey we used satellite data for detection of zones with risk of forest fire and their influenced parameters witch permit generally a desertification process. A thematic detailed analysis of forests ecosystems well attended, some processing on the satellite data (2003) allowed us to identify and classifying the forests in there opinion components flowers. We identified ampleness of fire on this zone also. The parameters slope, the proximity to the road and the forests formations and fire regime were studied in the goal of determining the zones to risk of fire drill. A crossing of information in a geographic information system according to a very determined logic allowed us to classify the zones in degree of risk of fire. These results compared with image data (2011) permit to conclude that in semi arid land the forest ecosystem after fire becomes steppe courses permitting installation of process of desertification.

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Ahmed Zegrar "Analysis of principal parameters of forest fires and identification of desertification process in semi-arid land in Algeria", Proc. SPIE 8893, Earth Resources and Environmental Remote Sensing/GIS Applications IV, 889316 (24 October 2013); https://doi.org/10.1117/12.2028319

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KEYWORDS

Roads

Ecosystems

Satellites

Geographic information systems

Vegetation

Climatology

Logic

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