This research was supported by the National Social Science Foundation (No. 21BGL154), National Education Ministry New Liberal Arts Research and Reform Practice Project (No. 2021090068), Department of Science and Technology of Hunan Province Foundation (No. 2021NK4262), Hunan Forestry Science and Technology Innovation Fund Project (No. XLKY202219), and Hunan Province Social Science Achievement Review Committee’s Research Project (No. XSP2023YSZ023).