Zhu, Yu-lin; Li, Ming-jie; Hou, Mao-zhang; Li, Sha; … - In: Asian Agricultural Research 04 (2012) 11
, various emergy indicators of agro-ecosystem in Hunan Province during the period 1999-2008. The results show that during the … 0.71 to 0.54, always less than 1, indicating that the agriculture in Hunan Province is the high consumption …