Vallée de la Helle (Baelen; Eupen; Waimes)

Location:Belgium
Area:1,878 acres (760 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
   
Share85 %15 %50 %45 %5 %
Soil TypeFibric HistosolsDystric CambisolsDystric CambisolsGleyic CambisolsFibric Histosols
Topsoil TextureFineMediumMediumMediumFine
Reference Depth100 cm100 cm100 cm100 cm100 cm
DrainageVery poorModerately wellModerately wellPoorVery poor
Available Water Capacity150 m50 m50 m150 m150 m
Phase 1 GravellyStonyFragipan 
Phase 2 StonyGravelly  
Root ObstacleNone to 80 cm 60 - 80 cm40 - 60 cmNone to 80 cm
Impermeable LayerNone to 150 cm 80 - 150 cm80 - 150 cm 
Soil Water RegimeWet within 40 cm depth for over 11 month Not 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 monthWet within 40 cm depth for over 11 month
Topsoil Properties
Gravel1 %10 %10 %4 %1 %
Sand20 %42 %42 %45 %20 %
Silt40 %38 %38 %36 %40 %
Clay40 %20 %20 %19 %40 %
USDA TextureClayLoamLoamLoamClay
Reference Bulk Density1.26 g/cm³1.41 g/cm³1.41 g/cm³1.42 g/cm³1.26 g/cm³
Bulk Density0.1 g/cm³1.3 g/cm³1.3 g/cm³1.41 g/cm³0.1 g/cm³
Organic Carbon33.63 %1.45 %1.45 %1 %33.63 %
PH4.35.15.16.44.3
Clay Cation Exchange Capacity45 cmol kg⁻¹32 cmol kg⁻¹32 cmol kg⁻¹38 cmol kg⁻¹45 cmol kg⁻¹
Soil Cation Exchange Capacity77 cmol kg⁻¹12 cmol kg⁻¹12 cmol kg⁻¹9 cmol kg⁻¹77 cmol kg⁻¹
Base Saturation62 %38 %38 %85 %62 %
Total Exchangeable Bases31.4 cmol kg⁻¹4.3 cmol kg⁻¹4.3 cmol kg⁻¹8.2 cmol kg⁻¹31.4 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %
Exchangeable Sodium2 %2 %2 %2 %2 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel2 %19 %19 %18 %2 %
Sand47 %45 %45 %39 %47 %
Silt26 %35 %35 %34 %26 %
Clay27 %20 %20 %27 %27 %
USDA TextureSandy clay loamLoamLoamClay loamSandy clay loam
Reference Bulk Density1.38 g/cm³1.42 g/cm³1.42 g/cm³1.36 g/cm³1.38 g/cm³
Bulk Density0.1 g/cm³1.36 g/cm³1.36 g/cm³1.6 g/cm³0.1 g/cm³
Organic Carbon32.89 %0.5 %0.5 %0.47 %32.89 %
PH4.65.25.26.74.6
Clay Cation Exchange Capacity71 cmol kg⁻¹35 cmol kg⁻¹35 cmol kg⁻¹37 cmol kg⁻¹71 cmol kg⁻¹
Soil Cation Exchange Capacity78 cmol kg⁻¹9 cmol kg⁻¹9 cmol kg⁻¹11 cmol kg⁻¹78 cmol kg⁻¹
Base Saturation40 %33 %33 %88 %40 %
Total Exchangeable Bases27.4 cmol kg⁻¹2.6 cmol kg⁻¹2.6 cmol kg⁻¹11.3 cmol kg⁻¹27.4 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0.1 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %
Exchangeable Sodium1 %2 %2 %2 %1 %
Electrical Conductivity0.1 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