1. Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A&F University, 3# Taicheng Road, Yangling 712100, China
2. College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou 450002, China
3. School of Resources, Environment and Materials, Guangxi University, Nanning 530004, Guangxi, China