Vallée de la Dyle de Wavre à Archennes (Grez-Doiceau)

Location:Belgium
Area:207 acres (84 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

Ecoregions

Atlantic mixed forests

Soils

Protected Area Boundary
 A
  
Share70 %20 %5 %5 %
Soil TypeEutric FluvisolsEutric FluvisolsEutric CambisolsHumic Cambisols
Topsoil TextureMediumMediumMediumMedium
Reference Depth100 cm100 cm100 cm100 cm
DrainagePoorPoorModerately wellModerately well
Available Water Capacity150 m150 m150 m150 m
Root ObstacleNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cm
Impermeable Layer80 - 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 for 3 to 6 months, but not wet within 40 cm for over 1 monthWet within 40 cm depth for over 11 monthNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month
Topsoil Properties
Gravel4 %4 %9 %8 %
Sand39 %39 %42 %41 %
Silt40 %40 %36 %36 %
Clay21 %21 %22 %23 %
USDA TextureLoamLoamLoamLoam
Reference Bulk Density1.4 g/cm³1.4 g/cm³1.4 g/cm³1.39 g/cm³
Bulk Density1.36 g/cm³1.36 g/cm³1.37 g/cm³1.1 g/cm³
Organic Carbon0.86 %0.86 %1 %2.72 %
PH7.27.26.65.3
Clay Cation Exchange Capacity63 cmol kg⁻¹63 cmol kg⁻¹55 cmol kg⁻¹52 cmol kg⁻¹
Soil Cation Exchange Capacity16 cmol kg⁻¹16 cmol kg⁻¹16 cmol kg⁻¹21 cmol kg⁻¹
Base Saturation91 %91 %93 %25 %
Total Exchangeable Bases16.9 cmol kg⁻¹16.9 cmol kg⁻¹14 cmol kg⁻¹5.4 cmol kg⁻¹
Calcium Carbonate0.5 %0.5 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %
Exchangeable Sodium2 %2 %2 %1 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel7 %7 %12 %6 %
Sand41 %41 %41 %44 %
Silt38 %38 %34 %32 %
Clay21 %21 %25 %24 %
USDA TextureLoamLoamLoamLoam
Reference Bulk Density1.4 g/cm³1.4 g/cm³1.38 g/cm³1.39 g/cm³
Bulk Density1.39 g/cm³1.39 g/cm³1.39 g/cm³1.16 g/cm³
Organic Carbon0.38 %0.38 %0.37 %1.07 %
PH7.57.575.3
Clay Cation Exchange Capacity61 cmol kg⁻¹61 cmol kg⁻¹55 cmol kg⁻¹37 cmol kg⁻¹
Soil Cation Exchange Capacity14 cmol kg⁻¹14 cmol kg⁻¹15 cmol kg⁻¹14 cmol kg⁻¹
Base Saturation96 %96 %93 %30 %
Total Exchangeable Bases15.2 cmol kg⁻¹15.2 cmol kg⁻¹15.1 cmol kg⁻¹2.5 cmol kg⁻¹
Calcium Carbonate2.5 %2.5 %0.1 %0 %
Calcium Sulphate0 %0 %0 %0 %
Exchangeable Sodium3 %3 %2 %2 %
Electrical Conductivity0.1 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