VALLEE DE l'YEVRE

Location:France
Area:1,337 acres (541 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
Western European broadleaf forests

Soils

Protected Area Boundary
 AB
   
Share70 %20 %10 %50 %50 %
Soil TypeCalcaric FluvisolsCalcic GleysolsTerric HistosolsCalcaric CambisolsEutric Cambisols
Topsoil TextureCoarseMediumMediumFineFine
Reference Depth100 cm100 cm100 cm100 cm100 cm
DrainagePoorPoorVery poorModerately wellModerately well
Available Water Capacity150 m150 m150 m150 m75 m
Phase 1    Stony
Root ObstacleNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cm40 - 60 cm
Impermeable LayerNone to 150 cm80 - 150 cm80 - 150 cm80 - 150 cmNone to 150 cm
Soil Water RegimeNot wet within 80 cm for over 3 months, nor 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 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 %4 %28 %5 %10 %
Sand79 %41 %35 %19 %23 %
Silt15 %40 %33 %32 %29 %
Clay6 %19 %32 %49 %48 %
USDA TextureLoamy sandLoamClay loamClayClay
Reference Bulk Density1.66 g/cm³1.42 g/cm³1.32 g/cm³1.24 g/cm³1.25 g/cm³
Bulk Density1.4 g/cm³1.31 g/cm³0.28 g/cm³1.28 g/cm³1.28 g/cm³
Organic Carbon0.41 %1.3 %39.4 %0.87 %1.17 %
PH8.375.67.86.7
Clay Cation Exchange Capacity109 cmol kg⁻¹37 cmol kg⁻¹45 cmol kg⁻¹57 cmol kg⁻¹50 cmol kg⁻¹
Soil Cation Exchange Capacity6 cmol kg⁻¹13 cmol kg⁻¹87 cmol kg⁻¹30 cmol kg⁻¹27 cmol kg⁻¹
Base Saturation100 %82 %75 %100 %89 %
Total Exchangeable Bases11 cmol kg⁻¹8.8 cmol kg⁻¹59.5 cmol kg⁻¹46.6 cmol kg⁻¹22.1 cmol kg⁻¹
Calcium Carbonate9.1 %1 %0 %4.9 %0.1 %
Calcium Sulphate0 %0 %0 %0.1 %0 %
Exchangeable Sodium4 %2 %1 %1 %1 %
Electrical Conductivity0.4 dS m-10.1 dS m-10.1 dS m-10.2 dS m-10.1 dS m-1
Subsoil Properties
Gravel10 %5 %5 %5 %24 %
Sand79 %44 %52 %23 %26 %
Silt15 %37 %23 %35 %29 %
Clay6 %19 %25 %42 %45 %
USDA TextureLoamy sandLoamSandy clay loamClayClay
Reference Bulk Density1.66 g/cm³1.42 g/cm³1.38 g/cm³1.26 g/cm³1.26 g/cm³
Bulk Density1.5 g/cm³1.47 g/cm³0.18 g/cm³1.35 g/cm³1.35 g/cm³
Organic Carbon0.17 %0.44 %38.46 %0.39 %0.58 %
PH8.37.25.88.17
Clay Cation Exchange Capacity137 cmol kg⁻¹40 cmol kg⁻¹49 cmol kg⁻¹58 cmol kg⁻¹51 cmol kg⁻¹
Soil Cation Exchange Capacity6 cmol kg⁻¹12 cmol kg⁻¹88 cmol kg⁻¹26 cmol kg⁻¹25 cmol kg⁻¹
Base Saturation94 %86 %96 %100 %97 %
Total Exchangeable Bases13.9 cmol kg⁻¹10 cmol kg⁻¹81.8 cmol kg⁻¹44.8 cmol kg⁻¹25.9 cmol kg⁻¹
Calcium Carbonate9.9 %1 %0 %11.2 %0.3 %
Calcium Sulphate0 %0 %0 %0 %0 %
Exchangeable Sodium4 %2 %1 %2 %1 %
Electrical Conductivity0.4 dS m-10.1 dS m-10.1 dS m-10.2 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