Rochers de Biarritz : Le Bouccalot et la Roche ronde
— Protected Area Boundary | | A | | | | | Share | 60 % | 20 % | 20 % | | Soil Type | Haplic Luvisols | Dystric Cambisols | Dystric Gleysols | | Topsoil Texture | Medium | Medium | Medium | | Reference Depth | 100 cm | 100 cm | 100 cm | | Drainage | Moderately well | Moderately well | Poor | | Available Water Capacity | 150 m | 150 m | 150 m | | Root Obstacle | None to 80 cm | None to 80 cm | None to 80 cm | | Impermeable Layer | 80 - 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 | Wet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 month | | Topsoil Properties | | Gravel | 4 % | 10 % | 2 % | | Sand | 41 % | 42 % | 40 % | | Silt | 37 % | 38 % | 39 % | | Clay | 22 % | 20 % | 21 % | | USDA Texture | Loam | Loam | Loam | | Reference Bulk Density | 1.4 g/cm³ | 1.41 g/cm³ | 1.4 g/cm³ | | Bulk Density | 1.43 g/cm³ | 1.3 g/cm³ | 1.3 g/cm³ | | Organic Carbon | 0.74 % | 1.45 % | 1.17 % | | PH | 6.5 | 5.1 | 5.1 | | Clay Cation Exchange Capacity | 47 cmol kg⁻¹ | 32 cmol kg⁻¹ | 25 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 13 cmol kg⁻¹ | 12 cmol kg⁻¹ | 11 cmol kg⁻¹ | | Base Saturation | 91 % | 38 % | 47 % | | Total Exchangeable Bases | 11 cmol kg⁻¹ | 4.3 cmol kg⁻¹ | 5.5 cmol kg⁻¹ | | Calcium Carbonate | 0 % | 0 % | 0 % | | Calcium Sulphate | 0 % | 0 % | 0 % | | Exchangeable Sodium | 1 % | 2 % | 1 % | | Electrical Conductivity | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | | Subsoil Properties | | Gravel | 3 % | 19 % | 6 % | | Sand | 37 % | 45 % | 41 % | | Silt | 34 % | 35 % | 34 % | | Clay | 29 % | 20 % | 25 % | | USDA Texture | Clay loam | Loam | Loam | | Reference Bulk Density | 1.35 g/cm³ | 1.42 g/cm³ | 1.38 g/cm³ | | Bulk Density | 1.51 g/cm³ | 1.36 g/cm³ | 1.36 g/cm³ | | Organic Carbon | 0.36 % | 0.5 % | 0.4 % | | PH | 6.7 | 5.2 | 5.3 | | Clay Cation Exchange Capacity | 50 cmol kg⁻¹ | 35 cmol kg⁻¹ | 29 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 14 cmol kg⁻¹ | 9 cmol kg⁻¹ | 10 cmol kg⁻¹ | | Base Saturation | 93 % | 33 % | 47 % | | Total Exchangeable Bases | 13.1 cmol kg⁻¹ | 2.6 cmol kg⁻¹ | 6.1 cmol kg⁻¹ | | Calcium Carbonate | 0 % | 0 % | 0 % | | Calcium Sulphate | 0 % | 0 % | 0 % | | Exchangeable Sodium | 1 % | 2 % | 1 % | | Electrical Conductivity | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 |
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