Mycorrhizal colonization and lead(Pb) uptake of weed species in a simulated Pb-polluted soil were studied by pot experiments in growth chamber. Thirteen species Kummerowia striata, Digitaria ciliaris, Ixeris chinensis, Echinochloa crusgalli var mitis, Plantago virginica, Trifolium repens, Veronica didyma, Gnaphalium affine, Vicia cracca, Avena fatua, Lolium perenne, Poa annua, Oxalis corniculata from orchard were used in this experiment. Under monoculture, the growth of 13 weeds was not significantly affect...