Table 3 Stepwise regression to detect factors (T, P, A and I) determining soil C sequestration following land-use conversion in 0–20 cm soil on the Loess Plateau

From: “Grain for Green” driven land use change and carbon sequestration on the Loess Plateau, China

Rainfall zone

Equation

R 2

Sig. (P)

n

<450 mm

ΔCs = −5.00T + 0.37A + 36.42

0.491

0.000**

129

450–550 mm

ΔCs = 0.63A + 0.74I-6.57

0.206

0.000**

154

>550 mm

ΔCs = 0.21A + 1.70

0.356

0.000**

141

All

ΔCs = −2.78T + 0.28A + 26.46

0.202

0.000**

424

  1. Note: ΔCs is soil C sequestration following land-use conversion; T (°C) is the average annual temperature; P (mm) is the average annual precipitation; A (yr) is the restoration age; I (Mg ha−1) is the initial soil C stocks.
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