Annular river network function connectivity evaluation method based on overcurrent potential and blocking strength

The invention discloses an annular river network function connectivity evaluation method based on overcurrent potential and blocking strength, and the method comprises the steps: firstly constructing a network model reflecting structural features based on an actual annular river network system, defining network components such as network nodes and network edges, and calculating the connectivity weight and the passing probability of each edge; secondly, over-current potential and blocking strength among all node pairs are searched, and connectivity among the node pairs is calculated; and finally, summarizing the connectivity between all node pairs to form a connectivity matrix, and calculating the mean value of the connectivity between each node and all other nodes as the connectivity of the node. The average value of the connectivity capacity of all the nodes is counted, and the overall connectivity (HCCI) of the river network is obtained through statistics. The method solves the problem of functional connect