1. Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China
2. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
3. Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tobacco Yunnan Industrial Co. Ltd., Kunming, Yunnan 650231, China
4. Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States