Pewsey Downs
— Protected Area Boundary | | A | | | | | Share | 50 % | 25 % | 20 % | 5 % | | Soil Type | Rendzic Leptosols | Eutric Cambisols | Haplic Luvisols | Calcaric Regosols | | Topsoil Texture | Medium | Medium | Medium | Medium | | Reference Depth | 30 cm | 100 cm | 100 cm | 100 cm | | Drainage | Imperfectly | Imperfectly | Moderately well | Imperfectly | | Available Water Capacity | 50 mm | 50 m | 150 m | 50 m | | Phase 1 | | Lithic | | Lithic | | Root Obstacle | | 40 - 60 cm | None to 80 cm | None to 80 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 | 16 % | 9 % | 4 % | 14 % | | Sand | 37 % | 42 % | 41 % | 44 % | | Silt | 44 % | 36 % | 37 % | 35 % | | Clay | 19 % | 22 % | 22 % | 21 % | | USDA Texture | Loam | Loam | Loam | Loam | | Reference Bulk Density | 1.41 g/cm³ | 1.4 g/cm³ | 1.4 g/cm³ | 1.41 g/cm³ | | Bulk Density | 1.24 g/cm³ | 1.37 g/cm³ | 1.43 g/cm³ | 1.37 g/cm³ | | Organic Carbon | 2.13 % | 1 % | 0.74 % | 0.75 % | | PH | 7.5 | 6.6 | 6.5 | 8 | | Clay Cation Exchange Capacity | 80 cmol kg⁻¹ | 55 cmol kg⁻¹ | 47 cmol kg⁻¹ | 45 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 27 cmol kg⁻¹ | 16 cmol kg⁻¹ | 13 cmol kg⁻¹ | 17 cmol kg⁻¹ | | Base Saturation | 100 % | 93 % | 91 % | 100 % | | Total Exchangeable Bases | 28.8 cmol kg⁻¹ | 14 cmol kg⁻¹ | 11 cmol kg⁻¹ | 26.8 cmol kg⁻¹ | | Calcium Carbonate | 6 % | 0 % | 0 % | 15 % | | Calcium Sulphate | 0 % | 0 % | 0 % | 0 % | | Exchangeable Sodium | 2 % | 2 % | 1 % | 2 % | | 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 | | 12 % | 3 % | 18 % | | Sand | | 41 % | 37 % | 40 % | | Silt | | 34 % | 34 % | 35 % | | Clay | | 25 % | 29 % | 25 % | | USDA Texture | | Loam | Clay loam | Loam | | Reference Bulk Density | | 1.38 g/cm³ | 1.35 g/cm³ | 1.37 g/cm³ | | Bulk Density | | 1.39 g/cm³ | 1.51 g/cm³ | 1.5 g/cm³ | | Organic Carbon | | 0.37 % | 0.36 % | 0.47 % | | PH | | 7 | 6.7 | 8.1 | | Clay Cation Exchange Capacity | | 55 cmol kg⁻¹ | 50 cmol kg⁻¹ | 52 cmol kg⁻¹ | | Soil Cation Exchange Capacity | | 15 cmol kg⁻¹ | 14 cmol kg⁻¹ | 15 cmol kg⁻¹ | | Base Saturation | | 93 % | 93 % | 100 % | | Total Exchangeable Bases | | 15.1 cmol kg⁻¹ | 13.1 cmol kg⁻¹ | 36.5 cmol kg⁻¹ | | Calcium Carbonate | | 0.1 % | 0 % | 15 % | | Calcium Sulphate | | 0 % | 0 % | 0 % | | Exchangeable Sodium | | 2 % | 1 % | 2 % | | Electrical Conductivity | | 0.1 dS m-1 | 0.1 dS m-1 | 0.3 dS m-1 |
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