Abstract
The aim of this study is fire hazard zoning the Chehel-Chay watershed and analysis of road network in order to fire-fighting management. Using effective factors on fire occurrence, the fire hazard map of the study area produced by support vector machine algorithm and then was divided into four hazard classes. The road length and type were investigated in the each fire hazard classes. The results showed that most of occurred fires are located in the close distances of roads and forest areas. The results showed that road types and land cover are important in fire occurrences and suppression. In high dangerous zone, the roads pass through forestlands, but in low dangerous zone, the roads are passing from farmlands. The roads do not cover the half of area and do not pass at two third of high hazard class zones. Therefore, appreciate road network planning is necessary according to fire-fighting management.
Highlights
The aim of this study is fire hazard zoLnVin-g1t0h7e6CRheihgeal,CLhaatyvwiaatershed and analysis of road network in order to fire-fighting management
The aim of the current study is (1) zoning the Chehel-Chay watershed based on fire hazard probability using support vector machine (SVM((2), analysis of road network in order to Fire Fighting Management (FFM) in different land covers
The results indicated that the low hazard class (LHC) class is the largest class in fire hazard probability map (10640.5 ha, 42%), followed by high hazard class (HHC) (7995.8 ha, 31.5%), MRHC (3959.8 ha, 15%) and relatively hazard class (RHC) (3083.8 ha, 12%) (Table 4 and Fig. 8b)
Summary
The aim of this study is fire hazard zoLnVin-g1t0h7e6CRheihgeal-,CLhaatyvwiaatershed and analysis of road network in order to fire-fighting management. Most human-caused fires occur in proximity to human settlements and road corridors (Soto 2012; Fox et al 2015; Arpaci et al 2014). Relationship among road network, fire occurring and fire management has been recognized for some times. Roads provide access option inside forests in order to perform management practices, timber harvesting, and other services. Create high contrast edges, (Forman, Alexander 1998), and reduce forest areas (Schonewald-Cox, Buechner 1992). Topography, anthropogenic Slope, altitude, insulation, proximity to road, vegetation cover Occurred fire, cover type, fire caused, weather
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