Effect of simulated nitrogen deposition on the community composition and stability of alpine grasslands in the Qinghai Lake Area

• ZHANG Jing, 
• DONG Shikui, 
• ZHAO Zhenzhen, 
• LI Shuai, 
• HAN Yuhui, 
• SHA Wei, 
• SHEN Hao, 
• LIU Shiliang, 
• DONG Quanmin, 
• ZHOU Huakun, 
• Tudanjia, 
• QI Xingmin, 
• WANG Haoshan