Study on the distribution pattern of vegetation litter in fenced watershed in semiarid loess hilly and gully region

• Zhong-Ai LIU, 
• Qing-Ke SHU, 
• Gao-Meng KUANG, 
• WANG Jing, 
• LI Ping, 
• DIAO Hui, 
• Lei-Lei- DIAO