How important: Nature) Binding of Toxic elements 溶解铝与土壤pH 5 y=1754.2e 智滥 R2=0.8159 4 4.5 6 土壤溶液pH 8 432 单核铝与pH 单核铝与DOC y=166.e145x R2=0.7621 432 y=0.12840.0105x R=0.6628◆ 冷 4.24.6 5.45.850 250 350 土壤pH DoC(mg/kg)How important:Nature) Binding of Toxic elements 溶解铝与土壤pH y = 1754.2e-1.4548x R 2 = 0.8159 0 1 2 3 4 5 6 4 4.5 5 5.5 6 土壤溶液pH 总溶解铝(mg/kg) 单核铝与DOC y = 0.1284e0.0105x R 2 = 0.6628 0 1 2 3 4 5 0 150 250 350 DOC(mg/kg) 单核铝(mg/kg) 单核铝与pH y = 1660.7e-1.495x R 2 = 0.7621 0 1 2 3 4 4.2 4.6 5 5.4 5.8 土壤pH 单核铝(mg/kg)