Funding for this research was provided by:
Humanities and Social Science Talent Plan of Shaanxi Province (91704160004)
the Humanity and Sociology Science Foundation of Ministry of Education of China (16XJA630003)
the National Natural Science Foundation of China (71101113)
the Natural Science Basic Research Plan in Shaanxi Province of China (2014JQ9375)
the Soft Science Research Project of Xi'an (3RK4SF7-1, SF1502-3)
Article History
Accepted: 15 December 2021
First Online: 1 March 2022