Funding for this research was provided by:
NSF of China (No.61673354, 61672474, 61402425, 61272470, 61305087,61440060,61501412)
Natural Science Foundation of Hubei Province (CN) (Grant No.2015CFA065).)
Open Research Project of The Hubei Key Laboratory of Intelligent Geo-Information Processing (KLIGIP201603 and KLIGIP201607)