1. Faculty of Agriculture and Food, Kunming University of Science & Technology, Kunming, People’s Republic of China
2. City College, Kunming University of Science & Technology, Kunming, People’s Republic of China
3. Faculty of Civil Engineering and Mechanics, Kunming University of Science & Technology, Kunming, People’s Republic of China
4. Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, People’s Republic of China