Table 4 Soil properties of the Collins’ Outcrop temporal gradient
Plot/Est. age [BP] | Horizon | Horizon Depth [cm] | Texture | Skeleton [%] | Color (moist) | pH | C org [%] | C/N | δ13C [‰] | Classification |
|---|---|---|---|---|---|---|---|---|---|---|
C1/< 200 | CA | 0–1 | LS | - | 10 YR 2/3 | 6.42 | 0.47 | 9.8 | −22.60 | Skeletic |
C1 | 1–8 | LS | 65 | 10 YR 3/3 | 6.42 | 0.28 | 10.1 | −23.34 | EutricRegosol | |
C2 | > 8 | LS | 48 | 10 YR 3/3 | 7.13 | 0.20 | 11.1 | −22.13 | (Ochric) | |
C2/2000 | A | 0–1 | SL | - | 10 YR 2/2 | 4.58 | 8.90 | 11.6 | −23.19 | Skeletic |
AC1 | 1–6 | SL | 14 | 10 YR 2/3 | 4.70 | 2.09 | 9.5 | −22.39 | Dystric | |
AC2 | 6–12 | LS | 36 | 10 YR 2/3 | 5.07 | 1.94 | 9.7 | −22.32 | Regosol | |
C3/3500 | A | 0–6 | SL | 18 | 10 YR 2/2 | 4.76 | 13.8 | 10.7 | −23.38 | DystricLepto- |
R | > 6 |  |  |  |  |  |  |  | sol (Stagnic) | |
C4/7200 | O | 0–3 |  | 2.3 |  | 5.58 | 20.7 | 10.3 | −25.59 | Eutric |
A | 3–11 | SL | 50 | 10 YR 2/3 | 5.29 | 3.84 | 9.3 | −22.18 | Regosol | |
AB | 11–16 | SiL | 30 | 10 YR 3/1 | 5.62 | 4.31 | 9.5 | −22.36 | (Ornithic) |