Purpose: Naturalized plants come in artificially or naturally, producing and spreading large numbers of seeds. Naturalized plants are not culled in the natural ecosystem and coexist in their own way. They have a wide range of tolerance and fast growth rates. Therefore, this study analyzed the differences of naturalized plants in the Gyeongsangbuk-do area by population density, forestland ratio, farmland ratio, land ratio, road ratio, and river ratio. We investigated the correlation with the naturalization index to understand the distribution characteristics of naturalized plants. Method: We conducted one-way ANOVA and multivariate analysis of variance(MANOVA) to determine the differences between the number of naturalized plant species and the items related to the naturalization index. Post-hoc analysis was performed through the Scheffe test method. We performed curvilinear regression analysis to find out the correlation. We used the Spss Statistics 21 statistics program to perform the above statistical analysis. Results: The naturalization index of naturalized plants showed differences in four items: population density, farmland ratio, land ratio, and river ratio, but there were no statistical differences in the two items, such as forestland ratio and road ratio. The farmland ratio did not affect the increase or decrease in the naturalization index. When the land ratio and road ratio increased, the naturalization index was also positively correlated. The river ratio had a positive correlation, but it had a negative correlation again after a certain point. Conclusion: The results of this study are expected to be used as data for selecting priority areas to manage naturalized plants. In addition, the data of this study can be used as basic data to study the naturalization index and environmental change of naturalized plants. However, we propose that comprehensive management for naturalized plants, such as analysis of the inflow path and distribution characteristics of naturalized plants between domestic regions, should be ca rried out continuously at the administrative level of local governments.
3. Results & Discussion