Populus simonii is one of the main tree species to conserve soil and water in the Loess Plateau,but its growth presents significant spatial differences due to different slope locations and planting modes.The study indicated that it performed better in ground diameter,diameter breast height,branch height and canopy width on lower slope than on middle and upper slope;the potential tree height and diameter breast height of Populus simonii planted on lower,middle and upper slopes were 77.53%,34.88%,31.88%,(75.5...
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