Effects of grass planting substrate on vegetation restoration in the Muli mining area

• QIAO Qianluo, 
• YANG Wenquan, 
• ZHAO Shuai, 
• FU Wenhui, 
• CHAI Gangning, 
• YU Yanghua, 
• LIN Baojun, 
• LI Xilai, 
• KOU Jiancun