Donkse Laagten

Location:Netherlands
Area:502 acres (203 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
  
Share60 %40 %
Soil TypeEutric FluvisolsEutric Fluvisols
Topsoil TextureFineMedium
Reference Depth100 cm100 cm
DrainageVery poorPoor
Available Water Capacity150 m150 m
Root Obstacle60 - 80 cmNone to 80 cm
Impermeable LayerNone to 150 cmNone to 150 cm
Soil Water RegimeWet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 monthNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month
Topsoil Properties
Gravel4 %4 %
Sand19 %39 %
Silt32 %40 %
Clay49 %21 %
USDA TextureClayLoam
Reference Bulk Density1.24 g/cm³1.4 g/cm³
Bulk Density1.27 g/cm³1.36 g/cm³
Organic Carbon1.19 %0.86 %
PH6.27.2
Clay Cation Exchange Capacity38 cmol kg⁻¹63 cmol kg⁻¹
Soil Cation Exchange Capacity24 cmol kg⁻¹16 cmol kg⁻¹
Base Saturation91 %91 %
Total Exchangeable Bases22.7 cmol kg⁻¹16.9 cmol kg⁻¹
Calcium Carbonate0 %0.5 %
Calcium Sulphate0 %0 %
Exchangeable Sodium1 %2 %
Electrical Conductivity0.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel3 %7 %
Sand21 %41 %
Silt32 %38 %
Clay47 %21 %
USDA TextureClayLoam
Reference Bulk Density1.24 g/cm³1.4 g/cm³
Bulk Density1.39 g/cm³1.39 g/cm³
Organic Carbon0.55 %0.38 %
PH6.87.5
Clay Cation Exchange Capacity41 cmol kg⁻¹61 cmol kg⁻¹
Soil Cation Exchange Capacity20 cmol kg⁻¹14 cmol kg⁻¹
Base Saturation99 %96 %
Total Exchangeable Bases18.2 cmol kg⁻¹15.2 cmol kg⁻¹
Calcium Carbonate0.2 %2.5 %
Calcium Sulphate0 %0 %
Exchangeable Sodium2 %3 %
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