Channel Islands National Park
— Protected Area Boundary | | A | | | | | Share | 70 % | 30 % | | Soil Type | Calcaric Regosols | Chromic Luvisols | | Topsoil Texture | Medium | Medium | | Reference Depth | 100 cm | 100 cm | | Drainage | Imperfectly | Moderately well | | Available Water Capacity | 50 m | 150 m | | Phase 1 | Lithic | | | Topsoil Properties | | Gravel | 17 % | 9 % | | Sand | 43 % | 47 % | | Silt | 35 % | 29 % | | Clay | 22 % | 24 % | | USDA Texture | Loam | Loam | | Reference Bulk Density | 1.4 g/cm³ | 1.39 g/cm³ | | Bulk Density | 1.4 g/cm³ | 1.54 g/cm³ | | Organic Carbon | 0.77 % | 0.86 % | | PH | 8 | 6.4 | | Clay Cation Exchange Capacity | 40 cmol kg⁻¹ | 38 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 17 cmol kg⁻¹ | 12 cmol kg⁻¹ | | Base Saturation | 100 % | 89 % | | Total Exchangeable Bases | 31.1 cmol kg⁻¹ | 10 cmol kg⁻¹ | | Calcium Carbonate | 15 % | 0 % | | Calcium Sulphate | 0 % | 0 % | | Exchangeable Sodium | 2 % | 1 % | | Electrical Conductivity | 0.3 dS m-1 | 0.1 dS m-1 | | Subsoil Properties | | Gravel | 18 % | 8 % | | Sand | 38 % | 39 % | | Silt | 36 % | 27 % | | Clay | 26 % | 34 % | | USDA Texture | Loam | Clay loam | | Reference Bulk Density | 1.36 g/cm³ | 1.33 g/cm³ | | Bulk Density | 1.52 g/cm³ | 1.52 g/cm³ | | Organic Carbon | 0.53 % | 0.38 % | | PH | 8.1 | 6.3 | | Clay Cation Exchange Capacity | 50 cmol kg⁻¹ | 40 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 15 cmol kg⁻¹ | 15 cmol kg⁻¹ | | Base Saturation | 100 % | 93 % | | Total Exchangeable Bases | 41.1 cmol kg⁻¹ | 12.3 cmol kg⁻¹ | | Calcium Carbonate | 15 % | 0 % | | Calcium Sulphate | 0 % | 0 % | | Exchangeable Sodium | 1 % | 1 % | | Electrical Conductivity | 0.3 dS m-1 | 0.1 dS m-1 |
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