Analysis of agroecosystems in Jilin Province based on emergy theory.
YAO Zuo-fang1,2;LIU Xing-tu1;LI Xiu-jun1;YANG Fei1,2;SUN Li1|WEN Bo-long1,2
1Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China;2Graduate University of Chinese Academy of Sciences, Beijing 100049, China