Welkteich

Location:Germany
Area:279 acres (113 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

Central European mixed forests

Soils

Protected Area Boundary
 A
  
Share50 %30 %10 %5 %5 %
Soil TypeHaplic PodzolsCambic ArenosolsGleyic PodzolsDystric GleysolsTerric Histosols
Topsoil TextureCoarseCoarseCoarseCoarseMedium
Reference Depth100 cm100 cm100 cm100 cm100 cm
DrainageSomewhat excessiveSomewhat excessivePoorPoorVery poor
Available Water Capacity100 m100 m100 m150 m150 m
Root ObstacleNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cm
Impermeable LayerNone to 150 cmNone to 150 cmNone to 150 cmNone to 150 cmNone to 150 cm
Soil Water RegimeNot 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 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 40 cm depth for over 11 month
Topsoil Properties
Gravel3 %2 %2 %10 %28 %
Sand87 %89 %86 %74 %35 %
Silt9 %6 %10 %16 %33 %
Clay4 %5 %4 %10 %32 %
USDA TextureLoamy sandSandLoamy sandSandy loamClay loam
Reference Bulk Density1.73 g/cm³1.7 g/cm³1.73 g/cm³1.57 g/cm³1.32 g/cm³
Bulk Density1.4 g/cm³1.57 g/cm³1.31 g/cm³1.4 g/cm³0.28 g/cm³
Organic Carbon2.18 %0.5 %1.97 %0.93 %39.4 %
PH4.464.45.25.6
Clay Cation Exchange Capacity101 cmol kg⁻¹40 cmol kg⁻¹52 cmol kg⁻¹20 cmol kg⁻¹45 cmol kg⁻¹
Soil Cation Exchange Capacity9 cmol kg⁻¹3 cmol kg⁻¹6 cmol kg⁻¹5 cmol kg⁻¹87 cmol kg⁻¹
Base Saturation11 %99 %18 %48 %75 %
Total Exchangeable Bases2.6 cmol kg⁻¹2 cmol kg⁻¹3.6 cmol kg⁻¹2.6 cmol kg⁻¹59.5 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %
Exchangeable Sodium1 %2 %1 %2 %1 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel4 %1 %3 %8 %5 %
Sand88 %89 %85 %68 %52 %
Silt8 %6 %10 %16 %23 %
Clay4 %5 %5 %16 %25 %
USDA TextureSandSandLoamy sandSandy loamSandy clay loam
Reference Bulk Density1.74 g/cm³1.7 g/cm³1.7 g/cm³1.49 g/cm³1.38 g/cm³
Bulk Density1.51 g/cm³1.55 g/cm³1.54 g/cm³1.57 g/cm³0.18 g/cm³
Organic Carbon0.39 %0.3 %0.91 %0.23 %38.46 %
PH55.94.955.8
Clay Cation Exchange Capacity66 cmol kg⁻¹42 cmol kg⁻¹44 cmol kg⁻¹23 cmol kg⁻¹49 cmol kg⁻¹
Soil Cation Exchange Capacity2 cmol kg⁻¹2 cmol kg⁻¹3 cmol kg⁻¹4 cmol kg⁻¹88 cmol kg⁻¹
Base Saturation21 %98 %21 %54 %96 %
Total Exchangeable Bases1.5 cmol kg⁻¹1.4 cmol kg⁻¹1.7 cmol kg⁻¹3.4 cmol kg⁻¹81.8 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %
Exchangeable Sodium3 %3 %3 %3 %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