Reserve Srebarna
— Protected Area Boundary | | A | | | | | Share | 75 % | 10 % | 5 % | 5 % | 5 % | | Soil Type | Haplic Chernozems | Calcic Chernozems | Calcaric Regosols | Haplic Chernozems | Eutric Regosols | | Topsoil Texture | Fine | Medium | Medium | Fine | Medium | | Reference Depth | 100 cm | 100 cm | 100 cm | 100 cm | 100 cm | | Drainage | Moderately well | Moderately well | Moderately well | Moderately well | Moderately well | | Available Water Capacity | 150 m | 150 m | 150 m | 150 m | 150 m | | Root Obstacle | None to 80 cm | None to 80 cm | None to 80 cm | None to 80 cm | None to 80 cm | | Impermeable Layer | None to 150 cm | None to 150 cm | 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 | 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 % | 14 % | 4 % | 25 % | | Sand | 12 % | 28 % | 44 % | 12 % | 47 % | | Silt | 46 % | 47 % | 35 % | 46 % | 34 % | | Clay | 42 % | 25 % | 21 % | 42 % | 19 % | | USDA Texture | Silty clay | Loam | Loam | Silty clay | Loam | | Reference Bulk Density | 1.24 g/cm³ | 1.35 g/cm³ | 1.41 g/cm³ | 1.24 g/cm³ | 1.43 g/cm³ | | Bulk Density | 1.18 g/cm³ | 1.21 g/cm³ | 1.37 g/cm³ | 1.18 g/cm³ | 1.21 g/cm³ | | Organic Carbon | 2.62 % | 1.65 % | 0.75 % | 2.62 % | 0.98 % | | PH | 7.1 | 7.8 | 8 | 7.1 | 6.4 | | Clay Cation Exchange Capacity | 69 cmol kg⁻¹ | 64 cmol kg⁻¹ | 45 cmol kg⁻¹ | 69 cmol kg⁻¹ | 40 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 41 cmol kg⁻¹ | 23 cmol kg⁻¹ | 17 cmol kg⁻¹ | 41 cmol kg⁻¹ | 12 cmol kg⁻¹ | | Base Saturation | 100 % | 100 % | 100 % | 100 % | 78 % | | Total Exchangeable Bases | 42 cmol kg⁻¹ | 38 cmol kg⁻¹ | 26.8 cmol kg⁻¹ | 42 cmol kg⁻¹ | 14 cmol kg⁻¹ | | Calcium Carbonate | 6 % | 4.6 % | 15 % | 6 % | 0 % | | Calcium Sulphate | 0 % | 0 % | 0 % | 0 % | 0 % | | Exchangeable Sodium | 1 % | 1 % | 2 % | 1 % | 1 % | | Electrical Conductivity | 0.2 dS m-1 | 0.4 dS m-1 | 0.2 dS m-1 | 0.2 dS m-1 | 0.1 dS m-1 | | Subsoil Properties | | Gravel | 6 % | 17 % | 18 % | 6 % | 28 % | | Sand | 12 % | 28 % | 40 % | 12 % | 51 % | | Silt | 48 % | 47 % | 35 % | 48 % | 31 % | | Clay | 40 % | 25 % | 25 % | 40 % | 18 % | | USDA Texture | Silty clay | Loam | Loam | Silty clay | Loam | | Reference Bulk Density | 1.25 g/cm³ | 1.35 g/cm³ | 1.37 g/cm³ | 1.25 g/cm³ | 1.44 g/cm³ | | Bulk Density | 1.32 g/cm³ | 1.3 g/cm³ | 1.5 g/cm³ | 1.32 g/cm³ | 1.45 g/cm³ | | Organic Carbon | 1.17 % | 0.78 % | 0.47 % | 1.17 % | 0.4 % | | PH | 7.4 | 8.2 | 8.1 | 7.4 | 6.9 | | Clay Cation Exchange Capacity | 63 cmol kg⁻¹ | 81 cmol kg⁻¹ | 52 cmol kg⁻¹ | 63 cmol kg⁻¹ | 56 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 34 cmol kg⁻¹ | 24 cmol kg⁻¹ | 15 cmol kg⁻¹ | 34 cmol kg⁻¹ | 11 cmol kg⁻¹ | | Base Saturation | 100 % | 100 % | 100 % | 100 % | 89 % | | Total Exchangeable Bases | 40 cmol kg⁻¹ | 29.1 cmol kg⁻¹ | 36.5 cmol kg⁻¹ | 40 cmol kg⁻¹ | 10.3 cmol kg⁻¹ | | Calcium Carbonate | 6 % | 13.6 % | 15 % | 6 % | 0 % | | Calcium Sulphate | 0 % | 0 % | 0 % | 0 % | 0 % | | Exchangeable Sodium | 1 % | 2 % | 2 % | 1 % | 2 % | | Electrical Conductivity | 0.5 dS m-1 | 0.4 dS m-1 | 0.3 dS m-1 | 0.5 dS m-1 | 0.1 dS m-1 |
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