Beijing 10029China

Abstract—In the study a cellular automata (CA) was applied to model the spread process of pine wilt disease (PWD), and a PWD-CASim tool was developed to simulate PWD spread based on the CA model using VC++6.0 platform. For the further understanding of PWD spread with the CA model, a case study was implemented to simulate the impacts of neighborhood size and deforestation rate on the disease spread. The simulation results of the case study show that PWD spread is very strong when the range of neighborhood is up to 90 m, and deforestation rate of 60 % maybe is the better choice to balance the management cost and disease diffusion prevention. The study results also present that the CA is another effective way to model PWD spread. Keywords- cellular automata; pine wilt disease; spread; model; Simulation I