TY - JOURNAL OF NATURAL RESOURCES A1 - WANG Ji-jun, LI Hui, SU Xin, DU Na T1 - Study on Coupling Relationship of Agricultural Eco-economic System Based on Farm Level in Northern Shaanxi Loess Hilly-Gully Region Y1 - 2010-11-20 00:00:00.0 JF - JOURNAL OF NATURAL RESOURCES JO - JOURNAL OF NATURAL RESOURCES SP - 1887 EP - 1896 VL - 25 IS - 11 UR - {https://www.jnr.ac.cn/EN/10.11849/zrzyxb.2010.11.008} N1 - 10.11849/zrzyxb.2010.11.008 ER -