Randu plavas

Location:Latvia
Area:692 acres (280 hectares)
Species:All  Endangered  Invasive
Climate:View Climate Data
Land Use:View Land Use Data
Köppen climate classification:Dfb (Climate: snow; Precipitation: fully humid; Temperature: warm summer)
Natura 2000 Data Sheet:View Data Sheet  Explanatory notes

Ecoregions

Sarmatic mixed forests

Soils

Link to Map
Protected Area Boundary
 A
  
Share50 %30 %10 %10 %
Soil TypeEutric GleysolsGleyic PodzolsHaplic PodzolsHaplic Podzols
Topsoil TextureCoarseCoarseCoarseCoarse
Reference Depth100 cm100 cm100 cm100 cm
DrainagePoorPoorSomewhat excessiveSomewhat excessive
Available Water Capacity150 m100 m100 m100 m
Root ObstacleNone to 80 cm40 - 60 cm40 - 60 cm40 - 60 cm
Impermeable LayerNone to 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 over 6 months, but not wet within 40 cm for over 11 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 month
Topsoil Properties
Gravel10 %2 %3 %3 %
Sand78 %86 %87 %87 %
Silt13 %10 %9 %9 %
Clay9 %4 %4 %4 %
USDA TextureSandy loamLoamy sandLoamy sandLoamy sand
Reference Bulk Density1.6 g/cm³1.73 g/cm³1.73 g/cm³1.73 g/cm³
Bulk Density1.36 g/cm³1.31 g/cm³1.4 g/cm³1.4 g/cm³
Organic Carbon0.57 %1.97 %2.18 %2.18 %
PH6.34.44.44.4
Clay Cation Exchange Capacity48 cmol kg⁻¹52 cmol kg⁻¹101 cmol kg⁻¹101 cmol kg⁻¹
Soil Cation Exchange Capacity6 cmol kg⁻¹6 cmol kg⁻¹9 cmol kg⁻¹9 cmol kg⁻¹
Base Saturation74 %18 %11 %11 %
Total Exchangeable Bases4.7 cmol kg⁻¹3.6 cmol kg⁻¹2.6 cmol kg⁻¹2.6 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %
Exchangeable Sodium2 %1 %1 %1 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel20 %3 %4 %4 %
Sand64 %85 %88 %88 %
Silt13 %10 %8 %8 %
Clay23 %5 %4 %4 %
USDA TextureSandy clay loamLoamy sandSandSand
Reference Bulk Density1.43 g/cm³1.7 g/cm³1.74 g/cm³1.74 g/cm³
Bulk Density1.55 g/cm³1.54 g/cm³1.51 g/cm³1.51 g/cm³
Organic Carbon0.3 %0.91 %0.39 %0.39 %
PH6.44.955
Clay Cation Exchange Capacity38 cmol kg⁻¹44 cmol kg⁻¹66 cmol kg⁻¹66 cmol kg⁻¹
Soil Cation Exchange Capacity10 cmol kg⁻¹3 cmol kg⁻¹2 cmol kg⁻¹2 cmol kg⁻¹
Base Saturation81 %21 %21 %21 %
Total Exchangeable Bases6.9 cmol kg⁻¹1.7 cmol kg⁻¹1.5 cmol kg⁻¹1.5 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %
Exchangeable Sodium3 %3 %3 %3 %
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