《Table 3 Percentage of water-stable aggregates with different size classes and mean weight diameter

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《"Changes in soil properties and erodibility of gully heads induced by vegetation restoration on the Loess Plateau, China"》

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Note:Different lowercase letters and capital letters in the same column indicate significant differences among different sites in the same land-use type and among different land-use types at P<0.05 level，respectively.

Vegetation restoration had significant effects on the size distribution and stability of water-stable aggregates（Table 3）.The proportion of macroaggregates（>0.25 mm）in the woodland and shrubland increased significantly by 68.95%and 89.61%，respectively，compared with that in the cropland，and there was no significant difference among woodland，shrubland and grassland.Additionally，no significant differences were found in the proportion of each size class of aggregates between woodland and shrubland.Compared with CZ，significant increases in aggregates（>5.00，5.00–2.00，2.00–1.00 and<0.25 mm）were found in GCV site in the grassland，and the other 4 sites showed a non-significant increase in all size classes of aggregates，except for1.00–0.50 mm.Compared with the cropland，aggregates with size>0.50 mm increased while aggregates with size<0.25 mm decreased significantly in the woodland and shrubland（P<0.05）.