1. Dept. of Geography and Spatial Information Technology, Ningbo Univ., Ningbo, Zhejiang 315211, China; Center for Land and Marine Spatial Utilization and Governance Research, Ningbo Univ., Ningbo, Zhejiang 315211, China; Donghai Institute, Ningbo Univ., Ningbo, Zhejiang 315211, China.
2. Dept. of Geography and Spatial Information Technology, Ningbo Univ., Ningbo, Zhejiang 315211, China.