1Variation of surface soil quality parameters by intensive donkey-drawn tillage on steep slope

作者： Li, Y; Tian, G; Lindstrom, MJ; Bork, HR; SCI

机构： Chinese Acad Agr Sci, Inst Agr Environm & Sustainable Dev, Beijing 100081, Peoples R China; Metropolitan Water Reclamat District Greater Chic, Biosolids Utilizat & Soil Sci Lab, Cicero, IL 60804 USA; USDA ARS, N Cent Soil Conservat Res Lab, Morris, MN 56267 USA; Univ Kiel, Ecol Ctr, D-24118 Kiel, Germany;

来源：SOIL SCIENCE SOCIETY OF AMERICA JOURNAL

年份：2004