Donegal Bay SPA

Location:Ireland
Area:25,851 acres (10,462 hectares)
Species:All  Endangered  Invasive
Climate:View Climate Data
Land Use:View Land Use Data
Köppen climate classification:Cfb (Climate: warm temperate; Precipitation: fully humid; Temperature: warm summer)
Natura 2000 Data Sheet:View Data Sheet  Explanatory notes

Soils

Protected Area Boundary
 AB
   
Share75 %15 %5 %5 %50 %25 %20 %5 %
Soil TypeDystric GleysolsUmbric GleysolsDystric CambisolsFibric HistosolsHaplic LuvisolsEutric CambisolsEutric GleysolsTerric Histosols
Topsoil TextureMediumMediumMediumFineMediumMediumMediumMedium
Reference Depth100 cm100 cm100 cm100 cm100 cm100 cm100 cm100 cm
DrainagePoorPoorModerately wellVery poorModerately wellModerately wellPoorVery poor
Available Water Capacity75 m75 m150 m150 m150 m150 m150 m150 m
Phase 1FragipanFragipan      
Root ObstacleNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cm
Impermeable Layer0 - 40 cm0 - 40 cmNone to 150 cmNone to 150 cmNone to 150 cmNone to 150 cmNone to 150 cmNone to 150 cm
Soil Water RegimeWet within 80 cm over 6 months, but not wet within 40 cm for over 11 monthWet within 80 cm over 6 months, but not wet within 40 cm for over 11 monthNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 monthWet within 80 cm over 6 months, but not wet within 40 cm for over 11 monthNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 monthNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 monthWet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 monthWet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 month
Topsoil Properties
Gravel2 %4 %10 %1 %4 %9 %4 %28 %
Sand40 %38 %42 %20 %41 %42 %37 %35 %
Silt39 %42 %38 %40 %37 %36 %40 %33 %
Clay21 %20 %20 %40 %22 %22 %23 %32 %
USDA TextureLoamLoamLoamClayLoamLoamLoamClay loam
Reference Bulk Density1.4 g/cm³1.4 g/cm³1.41 g/cm³1.26 g/cm³1.4 g/cm³1.4 g/cm³1.38 g/cm³1.32 g/cm³
Bulk Density1.3 g/cm³1.31 g/cm³1.3 g/cm³0.1 g/cm³1.43 g/cm³1.37 g/cm³1.35 g/cm³0.28 g/cm³
Organic Carbon1.17 %4.59 %1.45 %33.63 %0.74 %1 %1.07 %39.4 %
PH5.15.25.14.36.56.66.25.6
Clay Cation Exchange Capacity25 cmol kg⁻¹34 cmol kg⁻¹32 cmol kg⁻¹45 cmol kg⁻¹47 cmol kg⁻¹55 cmol kg⁻¹41 cmol kg⁻¹45 cmol kg⁻¹
Soil Cation Exchange Capacity11 cmol kg⁻¹20 cmol kg⁻¹12 cmol kg⁻¹77 cmol kg⁻¹13 cmol kg⁻¹16 cmol kg⁻¹13 cmol kg⁻¹87 cmol kg⁻¹
Base Saturation47 %82 %38 %62 %91 %93 %88 %75 %
Total Exchangeable Bases5.5 cmol kg⁻¹1.8 cmol kg⁻¹4.3 cmol kg⁻¹31.4 cmol kg⁻¹11 cmol kg⁻¹14 cmol kg⁻¹10.2 cmol kg⁻¹59.5 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0 %0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %0 %0 %0 %
Exchangeable Sodium1 %2 %2 %2 %1 %2 %2 %1 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel6 %5 %19 %2 %3 %12 %5 %5 %
Sand41 %38 %45 %47 %37 %41 %36 %52 %
Silt34 %32 %35 %26 %34 %34 %36 %23 %
Clay25 %30 %20 %27 %29 %25 %28 %25 %
USDA TextureLoamClay loamLoamSandy clay loamClay loamLoamClay loamSandy clay loam
Reference Bulk Density1.38 g/cm³1.34 g/cm³1.42 g/cm³1.38 g/cm³1.35 g/cm³1.38 g/cm³1.35 g/cm³1.38 g/cm³
Bulk Density1.36 g/cm³1.49 g/cm³1.36 g/cm³0.1 g/cm³1.51 g/cm³1.39 g/cm³1.5 g/cm³0.18 g/cm³
Organic Carbon0.4 %0.67 %0.5 %32.89 %0.36 %0.37 %0.37 %38.46 %
PH5.35.25.24.66.776.65.8
Clay Cation Exchange Capacity29 cmol kg⁻¹38 cmol kg⁻¹35 cmol kg⁻¹71 cmol kg⁻¹50 cmol kg⁻¹55 cmol kg⁻¹42 cmol kg⁻¹49 cmol kg⁻¹
Soil Cation Exchange Capacity10 cmol kg⁻¹11 cmol kg⁻¹9 cmol kg⁻¹78 cmol kg⁻¹14 cmol kg⁻¹15 cmol kg⁻¹13 cmol kg⁻¹88 cmol kg⁻¹
Base Saturation47 %86 %33 %40 %93 %93 %90 %96 %
Total Exchangeable Bases6.1 cmol kg⁻¹10 cmol kg⁻¹2.6 cmol kg⁻¹27.4 cmol kg⁻¹13.1 cmol kg⁻¹15.1 cmol kg⁻¹11.9 cmol kg⁻¹81.8 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0 %0 %0.1 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %0 %0 %0 %
Exchangeable Sodium1 %4 %2 %1 %1 %2 %2 %1 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Soil data provided by FAO/IIASA/ISRIC/ISSCAS/JRC, 2012. Harmonized World Soil Database (version 1.2). FAO, Rome, Italy and IIASA, Laxenburg, Austria.
Köppen climate classification provided by Kottek, M., J. Grieser, C. Beck, B. Rudolf, and F. Rubel, 2006: World Map of Köppen-Geiger Climate Classification updated. Meteorol. Z., 15, 259-263