Table 2 Soil nutrient parameters.

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

Vegetational type

Nutrient parameters

Layer (cm)

0–20

SOC (g·kg− 1)

TN (g·kg− 1)

TP (g·kg− 1)

Layer (cm)

20–40

SOC (g·kg− 1)

TN (g·kg− 1)

TP (g·kg− 1)

Layer (cm)

40–60

SOC (g·kg− 1)

TN (g·kg− 1)

TP (g·kg− 1)

PT

1.35 ± 0.22 Aa

1.14 ± 0.13 Aa

0.56 ± 0.04 Ab

1.24 ± 0.34 Ba

1.07 ± 0.24 Ba

0.48 ± 0.07 Bc

1.10 ± 0.11 Ca

0.88 ± 0.05 Ca

0.47 ± 0.05 Bb

PS

0.99 ± 0.03 Ab

1.02 ± 0.08 Ab

0.50 ± 0.09 Ac

0.94 ± 0.15 Bb

0.81 ± 0.06 Bb

0.51 ± 0.03 Ab

0.85 ± 0.05 Cb

0.73 ± 0.10 Cb

0.48 ± 0.04 Ab

HR

0.71 ± 0.11 Ad

0.56 ± 0.02 Ad

0.66 ± 0.03 Aa

0.49 ± 0.02 Cc

0.47 ± 0.08 Cd

0.60 ± 0.02 Ba

0.64 ± 0.02 Bc

0.58 ± 0.07 Bd

0.57 ± 0.07 Ca

CKS

0.86 ± 0.04 Ac

0.69 ± 0.01 Ac

0.46 ± 0.04 Ad

0.81 ± 0.05 Bc

0.62 ± 0.02 Bc

0.44 ± 0.01 Ad

0.79 ± 0.13 Cb

0.65 ± 0.05 Cc

0.41 ± 0.01 Ad

NG

0.57 ± 0.01 Ae

0.48 ± 0.00 Ae

0.48 ± 0.04 Ad

0.41 ± 0.09 Bd

0.37 ± 0.03 Be

0.47 ± 0.02 Bc

0.44 ± 0.03 Bd

0.33 ± 0.04 Ce

0.45 ± 0.06 Bc

  1. Different capital letters denote a significant difference (p < 0.05) in different soil layers under the same vegetational type, and different lowercase letters denote a significant difference (p < 0.05) between different vegetational types in the same soil layer.
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