The segment from Nehe to Nenjiang of the national highway G111 is one of most serious sandstorm areas.Observed the root morphological distributions of nine northeastern common green shrubs by the whole root mining method first,determined the erosion-index of the nine shrub roots by hydrostatic collapse method according to the soil particles,and finally using principal components analysis analyzed the total 25 factors which related to soil anti-erodibility.The results indicated that: Different tree species w...