Root distribution in deep free-draining entisols(T 成土) in Western australia of total root length per 10 cm 02o30405060 100 Depth cm Lupins Wheat Peas Medics Clovers 苜蓿属 三叶草 200 220 Hamblin and Hamblin (1985)Root distribution in deep free-draining entisols(新 成土) in Western Australia Hamblin and Hamblin (1985) Medics 苜蓿属 Lupins Wheat Peas Clovers 200 Depth (cm) 100 % of total root length per 10 cm 三叶草