干旱区研究
核桃—紫花苜蓿复合栽培的根系分布及生长动态
刘国军，曾凡江，雷加强，鲁艳，管建华
Root Distribution and Growing of Walnut Trees and Medicago sativa Sod-culture Pattern
干旱区研究 . 2015, (3): 504 -508 .