Abstract:
Wildfires usually occur in Nan province every year that causes floods and landslides during the rainy season, water shortages during the dry season. Also, air pollution problems PM10 levels exceed the standard that affects consumption, agriculture, and living. The study aimed to determine the factors that cause wildfires and create a risk map to specify the levels of risk in each area. Lead to the guidelines for effective wildfires prevention and control in Nan province by considering the data during 2012-2019. For data were analyzed using months in the wildfires season, days of the week (Sunday-Saturday), time, temperature, humidity, DEM, slope, distance from the road, distance from the agriculture area, the distance between nearby fire locations, and kind of forest by statistical frequency analysis, Chi-Square test, Pearson correlation. and multiple linear regression analysis using IBM SPSS Statistic 22 program and creating a risk map. The findings indicate that the days of the week have not been associate with the cause of wildfires. The main factors that cause wildfires are the distance from the road, the distance from the agricultural area, and the distance between nearby fire locations. Therefore, three variables were used to create the risk map and tested with locations of wildfires in 2020. It found that more than 55.55 percent of wildfires occurred in high and very high-risk areas, especially in zone 3, there were 81.63 percent of the wildfires occurred in very high-risk areas that the high and very high-risk of the four zones were only 8.16 percent of the province.