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http://dx.doi.org/10.14578/jkfs.2013.102.1.113

Relationships Between Edge Formation of Burned Forests and Landscape Characteristics with Consideration on Spatial Autocorrelation  

Lee, Sang-Woo (Department of Environmental Science, Konkuk University)
Won, Myoung-Soo (Division of Forest Disaster Management, Korea Forest Research Institute)
Lee, Hyun-Joo (Department of Environmental Science, Graduate School, Konkuk University)
Publication Information
Journal of Korean Society of Forest Science / v.102, no.1, 2013 , pp. 113-121 More about this Journal
Abstract
It has been known that edges of forest fire areas play significant roles in post-fire change of forest ecosystem and recovery process. The purpose of this study was to analyze the relationships between edge formation of burned forests and landscape characteristics with consideration on spatial autocorrelation. Samcheok fire site burned in 2000 was selected as the study area. Seven hundred fifty three of 500 $m^2$ grid cells were generated for measuring landscape characteristics. This study used the topographic variables including slop, elevation, topographic wetness index, solar radiation index and proportions of fuel and land use types. In delineating landscape characteristics correlation analysis with modified t-test were performed for exploring the relationships between edge formation and landscape characteristics. The results indicated that edge formation of burned forests was positively correlated with most variables including TWI, SRI, water, paddy, developed, farm, grass, bare soil, and negatively related with elevation, slope and all fuel types. Especially TWI (r=0.437) showed a strong positive correlation with edge formation. According to the results, edge of burned forests were likely formed when proportions of heterogeneous land use types were high with mild slope and low elevation.
Keywords
spatial autocorrelation; burned edges; modified t-test; Moran's I; landscape characteristics; forest fire;
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