克里斯·奥沃科
?????????????????????? (AM) ??????????????? 8 ????????? (0-20 cm)???(1) ???????????(2) ???????????(3) ??????????(4) ?????(5) ??????(6) ??????(7) ??????????(8) ????????????????????????????????????? (Pb)?? (Cd) ?? (Zn)????? AM ??????????????????? (PI) ????? AM ???????????????????????????????? AM ?????????????????????????????-????????????????? PI>20 ????????? PI < 20 ?????????????????????????????????????????????????????????????
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