Kuja

Location:Latvia
Area:26,658 acres (10,788 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
   
Share40 %25 %15 %15 %5 %60 %20 %10 %5 %5 %
Soil TypeGleyic LuvisolsEutric PodzoluvisolsEutric GleysolsGleyic LuvisolsFibric HistosolsGleyic LuvisolsEutric GleysolsTerric HistosolsFibric HistosolsEutric Planosols
Topsoil TextureMediumMediumMediumFineFineMediumMediumMediumFineMedium
Reference Depth100 cm100 cm100 cm100 cm100 cm100 cm100 cm100 cm100 cm100 cm
DrainagePoorModerately wellPoorPoorVery poorPoorPoorVery poorVery poorPoor
Available Water Capacity100 m100 m125 m100 m150 m150 m125 m150 m150 m150 m
Phase 1StonyStonyStonyStony  Stony   
Root ObstacleNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cmNone 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 cmNone to 150 cmNone 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 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 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 40 cm depth for over 11 monthWet within 40 cm depth for over 11 monthWet within 80 cm over 6 months, but not wet within 40 cm for over 11 month
Topsoil Properties
Gravel5 %1 %4 %4 %1 %5 %4 %28 %1 %4 %
Sand47 %35 %37 %43 %20 %47 %37 %35 %20 %42 %
Silt29 %54 %40 %16 %40 %29 %40 %33 %40 %38 %
Clay24 %11 %23 %41 %40 %24 %23 %32 %40 %20 %
USDA TextureLoamSilt loamLoamClayClayLoamLoamClay loamClayLoam
Reference Bulk Density1.39 g/cm³1.49 g/cm³1.38 g/cm³1.31 g/cm³1.26 g/cm³1.39 g/cm³1.38 g/cm³1.32 g/cm³1.26 g/cm³1.41 g/cm³
Bulk Density1.54 g/cm³1.36 g/cm³1.35 g/cm³1.3 g/cm³0.1 g/cm³1.54 g/cm³1.35 g/cm³0.28 g/cm³0.1 g/cm³1.47 g/cm³
Organic Carbon0.83 %1.2 %1.07 %0.84 %33.63 %0.83 %1.07 %39.4 %33.63 %1.06 %
PH6.35.46.274.36.36.25.64.35.6
Clay Cation Exchange Capacity46 cmol kg⁻¹48 cmol kg⁻¹41 cmol kg⁻¹57 cmol kg⁻¹45 cmol kg⁻¹46 cmol kg⁻¹41 cmol kg⁻¹45 cmol kg⁻¹45 cmol kg⁻¹37 cmol kg⁻¹
Soil Cation Exchange Capacity16 cmol kg⁻¹9 cmol kg⁻¹13 cmol kg⁻¹24 cmol kg⁻¹77 cmol kg⁻¹16 cmol kg⁻¹13 cmol kg⁻¹87 cmol kg⁻¹77 cmol kg⁻¹11 cmol kg⁻¹
Base Saturation93 %55 %88 %99 %62 %93 %88 %75 %62 %67 %
Total Exchangeable Bases14.9 cmol kg⁻¹5.7 cmol kg⁻¹10.2 cmol kg⁻¹26 cmol kg⁻¹31.4 cmol kg⁻¹14.9 cmol kg⁻¹10.2 cmol kg⁻¹59.5 cmol kg⁻¹31.4 cmol kg⁻¹8.4 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %1.4 %0 %0 %0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %0 %0 %0 %0 %0 %
Exchangeable Sodium2 %0 %2 %1 %2 %2 %2 %1 %2 %3 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel6 %4 %5 %8 %2 %6 %5 %5 %2 %4 %
Sand39 %37 %36 %37 %47 %39 %36 %52 %47 %33 %
Silt27 %43 %36 %15 %26 %27 %36 %23 %26 %31 %
Clay34 %20 %28 %48 %27 %34 %28 %25 %27 %36 %
USDA TextureClay loamLoamClay loamClaySandy clay loamClay loamClay loamSandy clay loamSandy clay loamClay loam
Reference Bulk Density1.33 g/cm³1.4 g/cm³1.35 g/cm³1.27 g/cm³1.38 g/cm³1.33 g/cm³1.35 g/cm³1.38 g/cm³1.38 g/cm³1.3 g/cm³
Bulk Density1.65 g/cm³1.61 g/cm³1.5 g/cm³1.32 g/cm³0.1 g/cm³1.65 g/cm³1.5 g/cm³0.18 g/cm³0.1 g/cm³1.4 g/cm³
Organic Carbon0.28 %0.25 %0.37 %0.55 %32.89 %0.28 %0.37 %38.46 %32.89 %0.43 %
PH75.36.674.676.65.84.66.3
Clay Cation Exchange Capacity44 cmol kg⁻¹63 cmol kg⁻¹42 cmol kg⁻¹51 cmol kg⁻¹71 cmol kg⁻¹44 cmol kg⁻¹42 cmol kg⁻¹49 cmol kg⁻¹71 cmol kg⁻¹47 cmol kg⁻¹
Soil Cation Exchange Capacity16 cmol kg⁻¹9 cmol kg⁻¹13 cmol kg⁻¹27 cmol kg⁻¹78 cmol kg⁻¹16 cmol kg⁻¹13 cmol kg⁻¹88 cmol kg⁻¹78 cmol kg⁻¹17 cmol kg⁻¹
Base Saturation99 %59 %90 %99 %40 %99 %90 %96 %40 %89 %
Total Exchangeable Bases15.9 cmol kg⁻¹4.9 cmol kg⁻¹11.9 cmol kg⁻¹31.3 cmol kg⁻¹27.4 cmol kg⁻¹15.9 cmol kg⁻¹11.9 cmol kg⁻¹81.8 cmol kg⁻¹27.4 cmol kg⁻¹15.2 cmol kg⁻¹
Calcium Carbonate0.4 %0 %0 %0 %0 %0.4 %0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %0 %0 %0 %0 %0 %
Exchangeable Sodium2 %0 %2 %2 %1 %2 %2 %1 %1 %4 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 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