San Juan Island National Historical Park
— Protected Area Boundary | | A | | | | | Share | 40 % | 30 % | 10 % | 10 % | 10 % | | Soil Type | Humic Cambisols | Orthic Podzols | Dystric Histosols | Humic Gleysols | Dystric Gleysols | | Topsoil Texture | Medium | Coarse | Medium | Medium | Medium | | Reference Depth | 100 cm | 100 cm | 100 cm | 100 cm | 100 cm | | Drainage | Moderately well | Somewhat excessive | Very poor | Poor | Poor | | Available Water Capacity | 150 m | 100 m | 150 m | 150 m | 150 m | | Topsoil Properties | | Gravel | 8 % | 4 % | 1 % | 4 % | 2 % | | Sand | 41 % | 85 % | 26 % | 33 % | 40 % | | Silt | 36 % | 11 % | 33 % | 45 % | 39 % | | Clay | 23 % | 4 % | 41 % | 22 % | 21 % | | USDA Texture | Loam | Loamy sand | Clay | Loam | Loam | | Reference Bulk Density | 1.39 g/cm³ | 1.73 g/cm³ | 1.27 g/cm³ | 1.38 g/cm³ | 1.4 g/cm³ | | Bulk Density | 1.1 g/cm³ | 1.36 g/cm³ | 0.15 g/cm³ | 1.2 g/cm³ | 1.33 g/cm³ | | Organic Carbon | 2.72 % | 2.09 % | 30.73 % | 3.71 % | 1.25 % | | PH | 5.2 | 4.5 | 4.4 | 5.5 | 5.1 | | Clay Cation Exchange Capacity | 54 cmol kg⁻¹ | 98 cmol kg⁻¹ | 46 cmol kg⁻¹ | 33 cmol kg⁻¹ | 24 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 21 cmol kg⁻¹ | 10 cmol kg⁻¹ | 77 cmol kg⁻¹ | 18 cmol kg⁻¹ | 11 cmol kg⁻¹ | | Base Saturation | 24 % | 16 % | 58 % | 34 % | 47 % | | Total Exchangeable Bases | 5 cmol kg⁻¹ | 2.5 cmol kg⁻¹ | 24.8 cmol kg⁻¹ | 3.1 cmol kg⁻¹ | 5.5 cmol kg⁻¹ | | Calcium Carbonate | 0 % | 0 % | 0 % | 0 % | 0 % | | Calcium Sulphate | 0 % | 0 % | 0 % | 0 % | 0 % | | Exchangeable Sodium | 1 % | 1 % | 1 % | 2 % | 1 % | | Electrical Conductivity | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | | Subsoil Properties | | Gravel | 8 % | 5 % | 5 % | 5 % | 4 % | | Sand | 44 % | 84 % | 41 % | 37 % | 41 % | | Silt | 32 % | 11 % | 30 % | 35 % | 34 % | | Clay | 24 % | 5 % | 29 % | 28 % | 25 % | | USDA Texture | Loam | Loamy sand | Clay loam | Clay loam | Loam | | Reference Bulk Density | 1.39 g/cm³ | 1.7 g/cm³ | 1.36 g/cm³ | 1.35 g/cm³ | 1.38 g/cm³ | | Bulk Density | 1.16 g/cm³ | 1.51 g/cm³ | 0.11 g/cm³ | 1.46 g/cm³ | 1.36 g/cm³ | | Organic Carbon | 1.03 % | 0.59 % | 34.81 % | 0.69 % | 0.4 % | | PH | 5.2 | 4.8 | 4.5 | 5.6 | 5.2 | | Clay Cation Exchange Capacity | 38 cmol kg⁻¹ | 63 cmol kg⁻¹ | 84 cmol kg⁻¹ | 41 cmol kg⁻¹ | 31 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 15 cmol kg⁻¹ | 4 cmol kg⁻¹ | 79 cmol kg⁻¹ | 11 cmol kg⁻¹ | 10 cmol kg⁻¹ | | Base Saturation | 30 % | 23 % | 56 % | 62 % | 47 % | | Total Exchangeable Bases | 2.5 cmol kg⁻¹ | 1.6 cmol kg⁻¹ | 28.4 cmol kg⁻¹ | 9 cmol kg⁻¹ | 6.1 cmol kg⁻¹ | | Calcium Carbonate | 0 % | 0 % | 0 % | 0 % | 0 % | | Calcium Sulphate | 0 % | 0 % | 0 % | 0 % | 0 % | | Exchangeable Sodium | 2 % | 2 % | 1 % | 4 % | 1 % | | Electrical Conductivity | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 |
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