Provincial-Scale Research on the Eco-Security Structure in the Form of an Ecological Network of the Upper Yellow River: A Case Study of the Ningxia Hui Autonomous Region

Important for promoting the integrated protection and systematic management of mountains, rivers, forests, farmlands, lakes, grasslands, sandy areas, ecological networks form backbone regional security pattern. An improved morphological spatial pattern analysis coupled with a minimum cumulative resistance model (MSPA–MCR) based on multi-source data was used to study, provincial scale, Ningxia, an ecologically fragile region in upper reaches Yellow River China. The results show following: (1) A reasonable classification sources corridors is key constructing hierarchical networks. Classifying by replacing patch areas energy factors identifying importance modifying gravity proposed this paper could improve rationality structure division (2) Grassland as substrate vegetation type important source arid semi-arid forests lake wetlands are main types mountainous oasis respectively. study area located arid–semi-arid transitional area, variety types, such mountain, oasis, desert. Therefore, complex forest–grassland–wetland appear some areas. (3) There 45 groups that can be classified including 10 primary groups. number small, their distribution unbalanced. two categories corridors, river corridor mountain corridor, network connectivity poor. (4) Ningxia presented consisting one belt, three screens, five clusters, forming nested system.