The clonal growth of Zoysia japonica in response to the levels and orders of habitat resource gradient

• Su-wen LAI, 
• De-zhi LI, 
• Hui-juan CHEN, 
• Song GENG, 
• Qing-qing CHEN, 
• Xiao-tao YUN, 
• Zhi-hua FAN, 
• Yi OUYANG, 
• Yao-yao HUANG, 
• Ming-zu WANG