Effect of climate warming and nitrogen deposition on net photosynthetic rate of alpine plants on Qinghai-Tibet Plateau

• Jing Feng, 
• Xiang-feng Zhang, 
• Shi-kui Dong, 
• Jin-bo Zhao, 
• Zhen-zhen Zhao, 
• Yu-hui Han, 
• Wei Sha, 
• Ming-yue Yang, 
• Shuai Li, 
• Hao Shen