Bassin inférieur de l'Ourthe occidentale (Bertogne; Houffalize; La Roche-en-Ardenne; Tenneville)

Location:Belgium
Area:2,021 acres (818 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
 A
  
Share85 %10 %5 %
Soil TypeDystric CambisolsGleyic CambisolsUmbric Leptosols
Topsoil TextureMediumMediumMedium
Reference Depth100 cm100 cm30 cm
DrainageModerately wellPoorImperfectly
Available Water Capacity50 m150 m15 mm
Phase 1StonyFragipanStony
Phase 2Gravelly  
Root Obstacle60 - 80 cm40 - 60 cm 
Impermeable LayerNone to 150 cm80 - 150 cm 
Soil Water RegimeNot 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 month 
Topsoil Properties
Gravel10 %4 %6 %
Sand42 %45 %49 %
Silt38 %36 %31 %
Clay20 %19 %20 %
USDA TextureLoamLoamLoam
Reference Bulk Density1.41 g/cm³1.42 g/cm³1.43 g/cm³
Bulk Density1.3 g/cm³1.41 g/cm³1.1 g/cm³
Organic Carbon1.45 %1 %2.4 %
PH5.16.45.1
Clay Cation Exchange Capacity32 cmol kg⁻¹38 cmol kg⁻¹34 cmol kg⁻¹
Soil Cation Exchange Capacity12 cmol kg⁻¹9 cmol kg⁻¹12 cmol kg⁻¹
Base Saturation38 %85 %36 %
Total Exchangeable Bases4.3 cmol kg⁻¹8.2 cmol kg⁻¹4.7 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %
Calcium Sulphate0 %0 %0 %
Exchangeable Sodium2 %2 %4 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel19 %18 % 
Sand45 %39 % 
Silt35 %34 % 
Clay20 %27 % 
USDA TextureLoamClay loam 
Reference Bulk Density1.42 g/cm³1.36 g/cm³ 
Bulk Density1.36 g/cm³1.6 g/cm³ 
Organic Carbon0.5 %0.47 % 
PH5.26.7 
Clay Cation Exchange Capacity35 cmol kg⁻¹37 cmol kg⁻¹ 
Soil Cation Exchange Capacity9 cmol kg⁻¹11 cmol kg⁻¹ 
Base Saturation33 %88 % 
Total Exchangeable Bases2.6 cmol kg⁻¹11.3 cmol kg⁻¹ 
Calcium Carbonate0 %0.1 % 
Calcium Sulphate0 %0 % 
Exchangeable Sodium2 %2 % 
Electrical Conductivity0.1 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