Forest Fire Risk Zone Evaluation Based on High Spatial Resolution RSImage in Liangyungang Huaguo Mountain Scenic Spot
Forest fire forecast synthesizes the main weather factors, geography, and degree of wet fuel, fuel types and characteristics of fire source to analyze and predict the forest fuel risk. All fire risk factors were divided into two kinds including stable and changeable factors. In this paper, Huaguo Mountain Scenic Spot in Liangyungang is choosed as study region. Stable fire risk factors, including topography and fuel types were used for forest zone evaluation. Using 10cm Aerial images, based on Forestry Resources surveying, this paper obtained the forestry vegetation type location and their characteristics such as tree height, breast-height diameter, leaves height, and canopy density. In the same time, the digital DEM and various geography factors such as elevation, slope, slope aspect, slope position was obtained by GIS. Based on these geography and fuel types characteristics the study region fire risk zone were divided using clustering analysis. Each fire risk zone has relative conformity in the geography and fuel types and its fire risk rating changing with weather and characteristics of fire source were modelled by Fuzzy multi-level synthetic evaluation. By fire risk zone, short time fire (24 hours) and high spatial resolution forecast would be realized, through further study in the similar region.
high spatial aerial images fire risk cluster analysis
Xiangwei Gao Xianyun Fei Hongquan Xie
SChool of Geodesy & Geomatics Engineering, HuaiHai Institute of Technology, Lianyunggang 222005,China jiangsu Marine Resources Development Research Institute, Lianyungang 222005,China
国际会议
福州
英文
593-596
2011-06-29（万方平台首次上网日期，不代表论文的发表时间）