Funding for this research was provided by:
National Nature Science Foundation of China (61763010)
Key Technologies R & D Program of Hebei (19970311D)
Educational Commission of Hebei Province of China (ZD2018083; ZD2018043; ZD2019134)
Startup Foundation for PhD of Hebei GEO University (BQ201322)
Article History
Accepted: 24 September 2020
First Online: 9 January 2021