Johnstown Flood National Memorial
— Protected Area Boundary | | A | | | | | Soil Type | Dystric Cambisols | | Topsoil Texture | Medium | | Reference Depth | 100 cm | | Drainage | Moderately well | | Available Water Capacity | 150 m | | Topsoil Properties | | Gravel | 10 % | | Sand | 41 % | | Silt | 39 % | | Clay | 20 % | | USDA Texture | Loam | | Reference Bulk Density | 1.41 g/cm³ | | Bulk Density | 1.3 g/cm³ | | Organic Carbon | 1.45 % | | PH | 5.1 | | Clay Cation Exchange Capacity | 30 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 12 cmol kg⁻¹ | | Base Saturation | 37 % | | Total Exchangeable Bases | 4.1 cmol kg⁻¹ | | Calcium Carbonate | 0 % | | Calcium Sulphate | 0 % | | Exchangeable Sodium | 1 % | | Electrical Conductivity | 0.1 dS m-1 | | Subsoil Properties | | Gravel | 20 % | | Sand | 45 % | | Silt | 35 % | | Clay | 20 % | | USDA Texture | Loam | | Reference Bulk Density | 1.42 g/cm³ | | Bulk Density | 1.37 g/cm³ | | Organic Carbon | 0.5 % | | PH | 5.2 | | Clay Cation Exchange Capacity | 36 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 9 cmol kg⁻¹ | | Base Saturation | 33 % | | Total Exchangeable Bases | 2.6 cmol kg⁻¹ | | Calcium Carbonate | 0 % | | Calcium Sulphate | 0 % | | Exchangeable Sodium | 1 % | | Electrical Conductivity | 0.1 dS m-1 |
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