Funding for this research was provided by:
National Natural Science Foundation of China (No.61702468)
Zhejiang Provincial Natural Science Foundation of China (No.LZ18F020001)
Open Research Project of The Hubei Key Laboratory of Intelligent Geo-Information Processing (KLIGIP-2018B03)
Article History
Received: 1 February 2019
Revised: 26 December 2019
Accepted: 22 April 2020
First Online: 21 May 2020