ANSE DU FIER D'ARS EN RE

Location:France
Area:11,028 acres (4,463 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

Soils

Protected Area Boundary
 AB
   
Share70 %30 %50 %30 %20 %
Soil TypeGleyic SolonchaksEutric GleysolsChromic CambisolsCalcaric CambisolsLithic Leptosols
Topsoil TextureFineFineMediumMediumFine
Reference Depth100 cm100 cm100 cm100 cm10 cm
DrainagePoorVery poorModerately wellModerately wellImperfectly
Available Water Capacity150 m150 m100 m100 m15 mm
Phase 1  StonyStonyStony
Root ObstacleNone to 80 cmNone to 80 cm40 - 60 cm40 - 60 cm 
Impermeable Layer80 - 150 cm80 - 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
Gravel4 %1 %10 %6 %17 %
Sand22 %17 %49 %36 %28 %
Silt26 %32 %28 %43 %25 %
Clay52 %51 %23 %21 %47 %
USDA TextureClayClayLoamLoamClay
Reference Bulk Density1.23 g/cm³1.22 g/cm³1.4 g/cm³1.39 g/cm³1.26 g/cm³
Bulk Density1.23 g/cm³1.25 g/cm³1.31 g/cm³1.41 g/cm³1.4 g/cm³
Organic Carbon0.53 %1.25 %0.98 %0.65 %2.3 %
PH8.85.86.687.5
Clay Cation Exchange Capacity39 cmol kg⁻¹37 cmol kg⁻¹42 cmol kg⁻¹52 cmol kg⁻¹33 cmol kg⁻¹
Soil Cation Exchange Capacity29 cmol kg⁻¹25 cmol kg⁻¹13 cmol kg⁻¹16 cmol kg⁻¹35 cmol kg⁻¹
Base Saturation100 %78 %83 %100 %100 %
Total Exchangeable Bases46.5 cmol kg⁻¹18.9 cmol kg⁻¹11.6 cmol kg⁻¹24.3 cmol kg⁻¹37.6 cmol kg⁻¹
Calcium Carbonate9 %0 %0.1 %7 %1.4 %
Calcium Sulphate0.4 %0 %0 %0 %0 %
Exchangeable Sodium45 %2 %2 %1 %1 %
Electrical Conductivity12.7 dS m-10.1 dS m-10.1 dS m-10.4 dS m-10.4 dS m-1
Subsoil Properties
Gravel6 %1 %9 %10 % 
Sand24 %19 %47 %34 % 
Silt23 %29 %26 %43 % 
Clay53 %52 %27 %23 % 
USDA TextureClayClaySandy clay loamLoam 
Reference Bulk Density1.23 g/cm³1.23 g/cm³1.38 g/cm³1.38 g/cm³ 
Bulk Density1.31 g/cm³1.35 g/cm³1.44 g/cm³1.45 g/cm³ 
Organic Carbon0.38 %0.45 %0.47 %0.43 % 
PH8.866.78.1 
Clay Cation Exchange Capacity48 cmol kg⁻¹40 cmol kg⁻¹44 cmol kg⁻¹54 cmol kg⁻¹ 
Soil Cation Exchange Capacity29 cmol kg⁻¹23 cmol kg⁻¹15 cmol kg⁻¹16 cmol kg⁻¹ 
Base Saturation100 %84 %92 %100 % 
Total Exchangeable Bases55.3 cmol kg⁻¹17 cmol kg⁻¹11.9 cmol kg⁻¹28.7 cmol kg⁻¹ 
Calcium Carbonate9 %0 %0.1 %8.7 % 
Calcium Sulphate0.5 %0 %0 %0.4 % 
Exchangeable Sodium42 %3 %1 %1 % 
Electrical Conductivity21.5 dS m-10.1 dS m-10.1 dS m-10.3 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