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. 2021 Jul 21;12:682142. doi: 10.3389/fpls.2021.682142

Table 1.

Initial soil parameters measured prior to the establishment of the trenching and leaf litter input treatments.

Soil depth (cm) SOC (%) TN (%) C:Nsoil Soil depth (cm) ρsoil (g cm−3)
0–5 5.67 ± 0.39 0.335 ± 0.020 16.71 ± 0.26 0–5 1.15 ± 0.07
5–15 2.14 ± 0.17 0.121 ± 0.008 17.48 ± 0.33
15–30 0.79 ± 0.05 0.051 ± 0.002 15.02 ± 0.38 20–25 1.35 ± 0.03
30–60 0.31 ± 0.02 0.035 ± 0.001 9.025 ± 0.41 40–45 1.49 ± 0.02
60–100 0.22 ± 0.01 0.032 ± 0.001 6.78 ± 0.27 60–65 1.55 ± 0.02

SOC, soil organic carbon; TN, total soil nitrogen; C:Nsoil, soil C:N ratios; ρsoil, soil bulk density.