Figure 1(A) Incidence map by districts; (B) incidence rate map by districts per capita.
Figure 2Histogram of incidence numbers in 25 districts.
Figure 3The slope of first order polynomial fitting to the yearly varying incidence number.
Figure 4The seven clusters with three axes of incidence number. It is helpful to analyze the time series characteristic. (A) x, y, z axes is for the incidence number of 2001–2002, 2005–2007, and 2010–2011, respectively and (B) per capita of (A).
Figure 5(A) 10 classes are grouped according to the number of incidences; (B) 10 classes are grouped according to the number of incidences per capita.
Figure 6Grouping based on region growing analysis. (A) Correlation coefficients > 0.9; (B) correlation coefficients > 0.8. Light yellow green represents the unidentified region.
Figure 7The area of urban land categories increased through 2001∼2010. Generally, the urban land categories are increasing. (A) Urban land category in Hongseong-gun is increasing slowly. The incidence number is decreasing in Figure 1: (B) seven districts where the tendency of incidence number is not clear. Urban land categories are increasing slowly, too; (C) eight places where the tendency of incidence number is increasing. The increasing rate of urban land categories is relatively high.
Figure 8The areas of vegetation land categories decreased through 2001∼2010. Dangjin-gun shows a recent increasing tendency. Generally, the vegetation land categories are decreasing. (A) The vegetation land category in Hongseong-gun is decreasing slowly. The incidence number is decreasing in Figure 1; (B) seven districts where the tendency of incidence number is not clear. Vegetation land categories are decreasing slowly, too; (C) eight places where the tendency of incidence number is decreasing. The increasing rate of urban land categories is relatively high.
Figure 9The slope of the first order polynomial fitting to urban land category, vegetation land category and the yearly varying incidence number.
Figure 10Correlation coefficients between urban land category and incidence number (blue line) and between vegetation land category and incidence number (red line). The slope of first order polynomial fitting to the yearly varying incidence number (black line).