North Downs Woodlands
— Protected Area Boundary | | A | | | | | Share | 45 % | 25 % | 25 % | 5 % | | Soil Type | Eutric Cambisols | Rendzic Leptosols | Haplic Luvisols | Calcaric Regosols | | Topsoil Texture | Coarse | Coarse | Coarse | Coarse | | Reference Depth | 100 cm | 30 cm | 100 cm | 100 cm | | Drainage | Well | Moderately well | Moderately well | Somewhat excessive | | Available Water Capacity | 100 m | 50 mm | 150 m | 100 m | | Root Obstacle | 40 - 60 cm | | None to 80 cm | 20 - 40 cm | | Impermeable Layer | None to 150 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 | | Not wet within 80 cm for over 3 months, nor 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 | | Topsoil Properties | | Gravel | 10 % | 21 % | 4 % | 15 % | | Sand | 77 % | 76 % | 82 % | 85 % | | Silt | 14 % | 16 % | 8 % | 8 % | | Clay | 9 % | 8 % | 10 % | 7 % | | USDA Texture | Sandy loam | Sandy loam | Loamy sand | Loamy sand | | Reference Bulk Density | 1.6 g/cm³ | 1.61 g/cm³ | 1.59 g/cm³ | 1.65 g/cm³ | | Bulk Density | 1.5 g/cm³ | 1.45 g/cm³ | 1.43 g/cm³ | 1.3 g/cm³ | | Organic Carbon | 0.7 % | 1.93 % | 0.4 % | 0.49 % | | PH | 6.9 | 7.2 | 6.5 | 7.9 | | Clay Cation Exchange Capacity | 49 cmol kg⁻¹ | 64 cmol kg⁻¹ | 48 cmol kg⁻¹ | 111 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 7 cmol kg⁻¹ | 14 cmol kg⁻¹ | 6 cmol kg⁻¹ | 5 cmol kg⁻¹ | | Base Saturation | 91 % | 86 % | 89 % | 100 % | | Total Exchangeable Bases | 6.7 cmol kg⁻¹ | 31.7 cmol kg⁻¹ | 5.9 cmol kg⁻¹ | 4.2 cmol kg⁻¹ | | Calcium Carbonate | 0.1 % | 4.9 % | 0 % | 6 % | | Calcium Sulphate | 0 % | 0 % | 0 % | 0 % | | Exchangeable Sodium | 2 % | 1 % | 2 % | 4 % | | Electrical Conductivity | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 0.2 dS m-1 | | Subsoil Properties | | Gravel | 20 % | | 6 % | 14 % | | Sand | 67 % | | 75 % | 84 % | | Silt | 16 % | | 8 % | 9 % | | Clay | 17 % | | 17 % | 7 % | | USDA Texture | Sandy loam | | Sandy loam | Loamy sand | | Reference Bulk Density | 1.48 g/cm³ | | 1.5 g/cm³ | 1.65 g/cm³ | | Bulk Density | 1.5 g/cm³ | | 1.57 g/cm³ | 1.6 g/cm³ | | Organic Carbon | 0.4 % | | 0.24 % | 0.4 % | | PH | 7.3 | | 6.5 | 8 | | Clay Cation Exchange Capacity | 48 cmol kg⁻¹ | | 53 cmol kg⁻¹ | 102 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 8 cmol kg⁻¹ | | 10 cmol kg⁻¹ | 5 cmol kg⁻¹ | | Base Saturation | 91 % | | 88 % | 100 % | | Total Exchangeable Bases | 9.3 cmol kg⁻¹ | | 8.1 cmol kg⁻¹ | 4.2 cmol kg⁻¹ | | Calcium Carbonate | 0.1 % | | 0 % | 6 % | | Calcium Sulphate | 0 % | | 0 % | 0 % | | Exchangeable Sodium | 2 % | | 1 % | 5 % | | Electrical Conductivity | 0.1 dS m-1 | | 0.1 dS m-1 | 0.3 dS m-1 |
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