Marais arrière-littoraux Picards
— Protected Area Boundary | | A | B | | | | | | Share | 90 % | 10 % | 70 % | 30 % | | Soil Type | Haplic Arenosols | Haplic Luvisols | Rendzic Leptosols | Calcaric Cambisols | | Topsoil Texture | Coarse | Medium | Medium | Medium | | Reference Depth | 100 cm | 100 cm | 30 cm | 100 cm | | Drainage | Somewhat excessive | Moderately well | Imperfectly | Moderately well | | Available Water Capacity | 100 m | 150 m | 15 mm | 100 m | | Phase 1 | Stony | | Stony | Stony | | Root Obstacle | None to 80 cm | None to 80 cm | | 60 - 80 cm | | Impermeable Layer | None to 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 | | Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month | | Topsoil Properties | | Gravel | 4 % | 4 % | 16 % | 6 % | | Sand | 90 % | 41 % | 37 % | 36 % | | Silt | 5 % | 37 % | 44 % | 43 % | | Clay | 5 % | 22 % | 19 % | 21 % | | USDA Texture | Sand | Loam | Loam | Loam | | Reference Bulk Density | 1.71 g/cm³ | 1.4 g/cm³ | 1.41 g/cm³ | 1.39 g/cm³ | | Bulk Density | 1.49 g/cm³ | 1.43 g/cm³ | 1.24 g/cm³ | 1.41 g/cm³ | | Organic Carbon | 0.4 % | 0.74 % | 2.13 % | 0.65 % | | PH | 6.2 | 6.5 | 7.5 | 8 | | Clay Cation Exchange Capacity | 35 cmol kg⁻¹ | 47 cmol kg⁻¹ | 80 cmol kg⁻¹ | 52 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 3 cmol kg⁻¹ | 13 cmol kg⁻¹ | 27 cmol kg⁻¹ | 16 cmol kg⁻¹ | | Base Saturation | 93 % | 91 % | 100 % | 100 % | | Total Exchangeable Bases | 3.3 cmol kg⁻¹ | 11 cmol kg⁻¹ | 28.8 cmol kg⁻¹ | 24.3 cmol kg⁻¹ | | Calcium Carbonate | 0 % | 0 % | 6 % | 7 % | | Calcium Sulphate | 0 % | 0 % | 0 % | 0 % | | Exchangeable Sodium | 3 % | 1 % | 2 % | 1 % | | Electrical Conductivity | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 0.4 dS m-1 | | Subsoil Properties | | Gravel | 4 % | 3 % | | 10 % | | Sand | 90 % | 37 % | | 34 % | | Silt | 5 % | 34 % | | 43 % | | Clay | 5 % | 29 % | | 23 % | | USDA Texture | Sand | Clay loam | | Loam | | Reference Bulk Density | 1.71 g/cm³ | 1.35 g/cm³ | | 1.38 g/cm³ | | Bulk Density | 1.52 g/cm³ | 1.51 g/cm³ | | 1.45 g/cm³ | | Organic Carbon | 0.21 % | 0.36 % | | 0.43 % | | PH | 6.1 | 6.7 | | 8.1 | | Clay Cation Exchange Capacity | 39 cmol kg⁻¹ | 50 cmol kg⁻¹ | | 54 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 2 cmol kg⁻¹ | 14 cmol kg⁻¹ | | 16 cmol kg⁻¹ | | Base Saturation | 100 % | 93 % | | 100 % | | Total Exchangeable Bases | 2.6 cmol kg⁻¹ | 13.1 cmol kg⁻¹ | | 28.7 cmol kg⁻¹ | | Calcium Carbonate | 0 % | 0 % | | 8.7 % | | Calcium Sulphate | 0 % | 0 % | | 0.4 % | | Exchangeable Sodium | 3 % | 1 % | | 1 % | | Electrical Conductivity | 0.1 dS m-1 | 0.1 dS m-1 | | 0.3 dS m-1 |
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