1 College of Horticulture, Hunan Agricultural University, Changsha, 410128, People's Republic of China.
2 College of Landscape Architecture, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
3 College of Landscape Architecture and Art Design, Hunan Agricultural University, Changsha, 410128, People's Republic of China.
4 College of Horticulture, Hunan Agricultural University, Changsha, 410128, People's Republic of China. longyuelin@hunau.edu.cn.
5 College of Landscape Architecture and Art Design, Hunan Agricultural University, Changsha, 410128, People's Republic of China. longyuelin@hunau.edu.cn.