Little Wittenham
— Protected Area Boundary | | A | | | | | Share | 50 % | 25 % | 20 % | 5 % | | Soil Type | Haplic Luvisols | Gleyic Luvisols | Eutric Cambisols | Eutric Gleysols | | Topsoil Texture | Medium | Medium | Coarse | Medium | | Reference Depth | 100 cm | 100 cm | 100 cm | 100 cm | | Drainage | Moderately well | Poor | Well | Poor | | Available Water Capacity | 150 m | 100 m | 100 m | 150 m | | Root Obstacle | None to 80 cm | None to 80 cm | None to 80 cm | None to 80 cm | | Impermeable Layer | None to 150 cm | 40 - 80 cm | None to 150 cm | None to 150 cm | | Soil Water Regime | Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month | Wet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 month | Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month | Wet within 80 cm over 6 months, but not wet within 40 cm for over 11 month | | Topsoil Properties | | Gravel | 4 % | 5 % | 10 % | 4 % | | Sand | 41 % | 47 % | 77 % | 37 % | | Silt | 37 % | 29 % | 14 % | 40 % | | Clay | 22 % | 24 % | 9 % | 23 % | | USDA Texture | Loam | Loam | Sandy loam | Loam | | Reference Bulk Density | 1.4 g/cm³ | 1.39 g/cm³ | 1.6 g/cm³ | 1.38 g/cm³ | | Bulk Density | 1.43 g/cm³ | 1.54 g/cm³ | 1.5 g/cm³ | 1.35 g/cm³ | | Organic Carbon | 0.74 % | 0.83 % | 0.7 % | 1.07 % | | PH | 6.5 | 6.3 | 6.9 | 6.2 | | Clay Cation Exchange Capacity | 47 cmol kg⁻¹ | 46 cmol kg⁻¹ | 49 cmol kg⁻¹ | 41 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 13 cmol kg⁻¹ | 16 cmol kg⁻¹ | 7 cmol kg⁻¹ | 13 cmol kg⁻¹ | | Base Saturation | 91 % | 93 % | 91 % | 88 % | | Total Exchangeable Bases | 11 cmol kg⁻¹ | 14.9 cmol kg⁻¹ | 6.7 cmol kg⁻¹ | 10.2 cmol kg⁻¹ | | Calcium Carbonate | 0 % | 0 % | 0.1 % | 0 % | | Calcium Sulphate | 0 % | 0 % | 0 % | 0 % | | Exchangeable Sodium | 1 % | 2 % | 2 % | 2 % | | Electrical Conductivity | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | | Subsoil Properties | | Gravel | 3 % | 6 % | 20 % | 5 % | | Sand | 37 % | 39 % | 67 % | 36 % | | Silt | 34 % | 27 % | 16 % | 36 % | | Clay | 29 % | 34 % | 17 % | 28 % | | USDA Texture | Clay loam | Clay loam | Sandy loam | Clay loam | | Reference Bulk Density | 1.35 g/cm³ | 1.33 g/cm³ | 1.48 g/cm³ | 1.35 g/cm³ | | Bulk Density | 1.51 g/cm³ | 1.65 g/cm³ | 1.5 g/cm³ | 1.5 g/cm³ | | Organic Carbon | 0.36 % | 0.28 % | 0.4 % | 0.37 % | | PH | 6.7 | 7 | 7.3 | 6.6 | | Clay Cation Exchange Capacity | 50 cmol kg⁻¹ | 44 cmol kg⁻¹ | 48 cmol kg⁻¹ | 42 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 14 cmol kg⁻¹ | 16 cmol kg⁻¹ | 8 cmol kg⁻¹ | 13 cmol kg⁻¹ | | Base Saturation | 93 % | 99 % | 91 % | 90 % | | Total Exchangeable Bases | 13.1 cmol kg⁻¹ | 15.9 cmol kg⁻¹ | 9.3 cmol kg⁻¹ | 11.9 cmol kg⁻¹ | | Calcium Carbonate | 0 % | 0.4 % | 0.1 % | 0 % | | Calcium Sulphate | 0 % | 0 % | 0 % | 0 % | | Exchangeable Sodium | 1 % | 2 % | 2 % | 2 % | | Electrical Conductivity | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 |
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