Random Walk on the Clonal Network of Spartina Alterniflora

Trapping process constituted a primary problem of random walks. Based on the field survey data and the theory of complex network, four types of nodes and four types of edges were defined, and then the multiple relationship networks of Spartina alterniflora genets were constructed, which showed disassortativity. In order to explore the topological and dynamic characteristics of the multiple relationship networks of S. alterniflora genets, the random walk models with multiple traps were established. The simulation result showed that the bunches and the ramets without spikes were the major regulatory nodes of ATT in the random walks. We concluded that the horizontal spatial diffusion network patterns of S. alterniflora genets revealed by the models reflected their habitat heterogeneity patterns. Furthermore, this type of models might generally provide a reference for the analysis on the heterogeneity patterns of the habitats of other clonal plants.