International Journal of Wildland Fire International Journal of Wildland Fire Society
Journal of the International Association of Wildland Fire

Spatial Autocorrelation Analysis and Weighting Functions in the Distribution of Wildland Fires

YH Chou

International Journal of Wildland Fire 2(4) 169 - 176
Published: 1992


Spatial autocorrelation and spatial weighting functions are examined in relation to the distribution of wildland fires. Records of fire activity and vegetation for the Idyllwild 15-minute quadrangle of the San Jacinto Mountains, San Bernardino National Forest, California, are processed in a geographic information system to generate six spatial weighting functions: contiguity, area, boundary length, distance, area-distance combined, and boundary-distance combined. The weighted coefficients and significance tests show that contiguity best represents the spatial relationship in the distribution of wildand fires. Distance introduces a scaling effect which enhances the magnitude of Moran's I coefficient of spatial autocorrelation.

Keywords: Spatial autocorrelation; Weighting functions; Wildland fires

© IAWF 1992

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