[1
]College of Environment and Safety Engineering Fuzhou University Fuzhou China
[2
]Opening Fund of Key Laboratory of Geohazard Prevention of Hilly Mountains Ministry
of Natural Resources (Fujian Key Laboratory of Geohazard Prevention) Fuzhou China
[3
]Institute of Remote Sensing Information Engineering Fuzhou University Fuzhou China
[4
]The Academy of Digital China (Fujian) Fuzhou China