Effect of different grassland managements strategies on grass productivity in Stellera-dominated degraded grasslands

• WANG Hongsheng, 
• BAO Gensheng, 
• WANG Yuqin, 
• YI Yali, 
• YANG Youwu, 
• LIU Shengcai, 
• ZHU Xiulian, 
• SONG Meiling