Nutrient Flow and Environmental Effects on Crop-Livestock System in Farming-Pastoral Transition Zone - A Case Study in Shanxi Province
ZHANG JianJie, GUO CaiXia, LI LianFen, ZHANG Qiang
Scientia Agricultura Sinica . 2018, (3): 456 -467 .  DOI: 10.3864/j.issn.0578-1752.2018.03.006