Burtnieku ezera plavas

Location:Latvia
Area:1,067 acres (432 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
 AB
   
Share60 %20 %15 %5 % 
Soil TypeHaplic LuvisolsGleyic LuvisolsGleyic LuvisolsFibric HistosolsTerric Histosols
Topsoil TextureMediumMediumMediumFineMedium
Reference Depth100 cm100 cm100 cm100 cm100 cm
DrainageModerately wellPoorPoorVery poorVery poor
Available Water Capacity100 m50 m50 m150 m150 m
Phase 1StonyStonyStony  
Root ObstacleNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cm
Impermeable LayerNone to 150 cm40 - 80 cm40 - 80 cmNone 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 monthWet 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 monthWet within 40 cm depth for over 11 monthWet within 40 cm depth for over 11 month
Topsoil Properties
Gravel4 %5 %5 %1 %28 %
Sand41 %47 %47 %20 %35 %
Silt37 %29 %29 %40 %33 %
Clay22 %24 %24 %40 %32 %
USDA TextureLoamLoamLoamClayClay loam
Reference Bulk Density1.4 g/cm³1.39 g/cm³1.39 g/cm³1.26 g/cm³1.32 g/cm³
Bulk Density1.43 g/cm³1.54 g/cm³1.54 g/cm³0.1 g/cm³0.28 g/cm³
Organic Carbon0.74 %0.83 %0.83 %33.63 %39.4 %
PH6.56.36.34.35.6
Clay Cation Exchange Capacity47 cmol kg⁻¹46 cmol kg⁻¹46 cmol kg⁻¹45 cmol kg⁻¹45 cmol kg⁻¹
Soil Cation Exchange Capacity13 cmol kg⁻¹16 cmol kg⁻¹16 cmol kg⁻¹77 cmol kg⁻¹87 cmol kg⁻¹
Base Saturation91 %93 %93 %62 %75 %
Total Exchangeable Bases11 cmol kg⁻¹14.9 cmol kg⁻¹14.9 cmol kg⁻¹31.4 cmol kg⁻¹59.5 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0 %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
Subsoil Properties
Gravel3 %6 %6 %2 %5 %
Sand37 %39 %39 %47 %52 %
Silt34 %27 %27 %26 %23 %
Clay29 %34 %34 %27 %25 %
USDA TextureClay loamClay loamClay loamSandy clay loamSandy clay loam
Reference Bulk Density1.35 g/cm³1.33 g/cm³1.33 g/cm³1.38 g/cm³1.38 g/cm³
Bulk Density1.51 g/cm³1.65 g/cm³1.65 g/cm³0.1 g/cm³0.18 g/cm³
Organic Carbon0.36 %0.28 %0.28 %32.89 %38.46 %
PH6.7774.65.8
Clay Cation Exchange Capacity50 cmol kg⁻¹44 cmol kg⁻¹44 cmol kg⁻¹71 cmol kg⁻¹49 cmol kg⁻¹
Soil Cation Exchange Capacity14 cmol kg⁻¹16 cmol kg⁻¹16 cmol kg⁻¹78 cmol kg⁻¹88 cmol kg⁻¹
Base Saturation93 %99 %99 %40 %96 %
Total Exchangeable Bases13.1 cmol kg⁻¹15.9 cmol kg⁻¹15.9 cmol kg⁻¹27.4 cmol kg⁻¹81.8 cmol kg⁻¹
Calcium Carbonate0 %0.4 %0.4 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %
Exchangeable Sodium1 %2 %2 %1 %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