Alpine meadows at different stages of degradation in the Beiluhe Basin of the Qinghai-Tibet Plateau: Productivity and community structure characteristics

• LI Chengyang, 
• LAI Chimin, 
• PENG Fei, 
• XUE Xian, 
• YOU Quangang, 
• ZHANG Wenjuan, 
• LIU Feiyao