Lake Roosevelt National Recreation Area
— Protected Area Boundary | | A | B | C | | | | | | | Share | 60 % | 20 % | 20 % | 70 % | 30 % | 70 % | 30 % | | Soil Type | Luvic Phaeozems | Mollic Planosols | Orthic Greyzems | Luvic Kastanozems | Haplic Kastanozems | Vitric Andosols | Orthic Podzols | | Topsoil Texture | Medium | Medium | Medium | Medium | Medium | Medium | Coarse | | Reference Depth | 100 cm | 100 cm | 100 cm | 100 cm | 100 cm | 100 cm | 100 cm | | Drainage | Moderately well | Poor | Moderately well | Moderately well | Moderately well | Moderately well | Somewhat excessive | | Available Water Capacity | 150 m | 150 m | 150 m | 150 m | 150 m | 100 m | 100 m | | Phase 1 | | | | | | Stony | | | Topsoil Properties | | Gravel | 4 % | 4 % | 10 % | 8 % | 8 % | 4 % | 4 % | | Sand | 35 % | 21 % | 25 % | 36 % | 34 % | 46 % | 85 % | | Silt | 41 % | 55 % | 54 % | 41 % | 45 % | 43 % | 11 % | | Clay | 24 % | 24 % | 21 % | 23 % | 21 % | 11 % | 4 % | | USDA Texture | Loam | Silt loam | Silt loam | Loam | Loam | Loam | Loamy sand | | Reference Bulk Density | 1.37 g/cm³ | 1.34 g/cm³ | 1.37 g/cm³ | 1.38 g/cm³ | 1.39 g/cm³ | 1.51 g/cm³ | 1.73 g/cm³ | | Bulk Density | 1.28 g/cm³ | 1.38 g/cm³ | 1.31 g/cm³ | 1.2 g/cm³ | 1.29 g/cm³ | 0.87 g/cm³ | 1.36 g/cm³ | | Organic Carbon | 1.68 % | 1.91 % | 1.6 % | 1.27 % | 1.28 % | 4.38 % | 2.09 % | | PH | 6.2 | 6 | 6.6 | 7.3 | 7.4 | 5.9 | 4.5 | | Clay Cation Exchange Capacity | 52 cmol kg⁻¹ | 42 cmol kg⁻¹ | 71 cmol kg⁻¹ | 66 cmol kg⁻¹ | 81 cmol kg⁻¹ | 138 cmol kg⁻¹ | 98 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 19 cmol kg⁻¹ | 17 cmol kg⁻¹ | 21 cmol kg⁻¹ | 23 cmol kg⁻¹ | 21 cmol kg⁻¹ | 24 cmol kg⁻¹ | 10 cmol kg⁻¹ | | Base Saturation | 87 % | 77 % | 99 % | 100 % | 100 % | 57 % | 16 % | | Total Exchangeable Bases | 16.1 cmol kg⁻¹ | 13 cmol kg⁻¹ | 14 cmol kg⁻¹ | 18.4 cmol kg⁻¹ | 18.4 cmol kg⁻¹ | 5.2 cmol kg⁻¹ | 2.5 cmol kg⁻¹ | | Calcium Carbonate | 0 % | 0 % | 1.6 % | 4.5 % | 5.4 % | 0 % | 0 % | | Calcium Sulphate | 0 % | 0 % | 0 % | 0 % | 0 % | 0 % | 0 % | | Exchangeable Sodium | 2 % | 2 % | 2 % | 3 % | 1 % | 1 % | 1 % | | Electrical Conductivity | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 1.6 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | | Subsoil Properties | | Gravel | 5 % | 4 % | 10 % | 5 % | 5 % | 10 % | 5 % | | Sand | 30 % | 18 % | 23 % | 29 % | 36 % | 56 % | 84 % | | Silt | 36 % | 42 % | 49 % | 42 % | 43 % | 32 % | 11 % | | Clay | 34 % | 40 % | 28 % | 29 % | 21 % | 12 % | 5 % | | USDA Texture | Clay loam | Silty clay | Clay loam | Clay loam | Loam | Sandy loam | Loamy sand | | Reference Bulk Density | 1.31 g/cm³ | 1.26 g/cm³ | 1.33 g/cm³ | 1.33 g/cm³ | 1.39 g/cm³ | 1.51 g/cm³ | 1.7 g/cm³ | | Bulk Density | 1.37 g/cm³ | 1.41 g/cm³ | 1.49 g/cm³ | 1.18 g/cm³ | 1.42 g/cm³ | 0.91 g/cm³ | 1.51 g/cm³ | | Organic Carbon | 0.69 % | 0.41 % | 0.4 % | 0.57 % | 0.51 % | 1.47 % | 0.59 % | | PH | 6.8 | 7.3 | 7 | 7.9 | 7.9 | 6 | 4.8 | | Clay Cation Exchange Capacity | 64 cmol kg⁻¹ | 62 cmol kg⁻¹ | 64 cmol kg⁻¹ | 68 cmol kg⁻¹ | 97 cmol kg⁻¹ | 155 cmol kg⁻¹ | 63 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 24 cmol kg⁻¹ | 23 cmol kg⁻¹ | 20 cmol kg⁻¹ | 24 cmol kg⁻¹ | 19 cmol kg⁻¹ | 17 cmol kg⁻¹ | 4 cmol kg⁻¹ | | Base Saturation | 92 % | 94 % | 100 % | 100 % | 100 % | 57 % | 23 % | | Total Exchangeable Bases | 23.8 cmol kg⁻¹ | 24 cmol kg⁻¹ | 15.3 cmol kg⁻¹ | 21.1 cmol kg⁻¹ | 19.1 cmol kg⁻¹ | 8 cmol kg⁻¹ | 1.6 cmol kg⁻¹ | | Calcium Carbonate | 0.4 % | 0.9 % | 3.5 % | 10 % | 10.4 % | 0 % | 0 % | | Calcium Sulphate | 0 % | 0 % | 0 % | 0 % | 0 % | 0 % | 0 % | | Exchangeable Sodium | 2 % | 6 % | 2 % | 3 % | 3 % | 2 % | 2 % | | Electrical Conductivity | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 3.6 dS m-1 | 2.2 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 |
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