Effects of vegetation restoration on soil aggregate characteristics and soil erodibility at gully head in Loess hilly and gully region.

The relationship between the aggregate stability index and soil properties was further analyzed (Table 4 ), and the results showed that the R > 0.25 mm , MWD, and GMD values showed a highly significant positive correlation with the > 0.25 mm particle size aggregate content, SOC, TN, and clay content, and a highly significant negative correlation with the < 0.053 mm particle size aggregate content ( P < 0.01).

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