Site d'Arjuzanx

Location:France
Area:5,258 acres (2,128 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
   
Share90 %10 %70 %30 %
Soil TypeHaplic PodzolsHaplic PodzolsHaplic PodzolsEutric Podzoluvisols
Topsoil TextureCoarseCoarseCoarseMedium
Reference Depth100 cm100 cm100 cm100 cm
DrainageSomewhat excessiveSomewhat excessiveSomewhat excessiveModerately well
Available Water Capacity100 m75 m100 m150 m
Root Obstacle60 - 80 cmNone to 80 cm60 - 80 cmNone to 80 cm
Impermeable Layer80 - 150 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 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
Gravel3 %3 %3 %1 %
Sand87 %87 %87 %35 %
Silt9 %9 %9 %54 %
Clay4 %4 %4 %11 %
USDA TextureLoamy sandLoamy sandLoamy sandSilt loam
Reference Bulk Density1.73 g/cm³1.73 g/cm³1.73 g/cm³1.49 g/cm³
Bulk Density1.4 g/cm³1.4 g/cm³1.4 g/cm³1.36 g/cm³
Organic Carbon2.18 %2.18 %2.18 %1.2 %
PH4.44.44.45.4
Clay Cation Exchange Capacity101 cmol kg⁻¹101 cmol kg⁻¹101 cmol kg⁻¹48 cmol kg⁻¹
Soil Cation Exchange Capacity9 cmol kg⁻¹9 cmol kg⁻¹9 cmol kg⁻¹9 cmol kg⁻¹
Base Saturation11 %11 %11 %55 %
Total Exchangeable Bases2.6 cmol kg⁻¹2.6 cmol kg⁻¹2.6 cmol kg⁻¹5.7 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %
Exchangeable Sodium1 %1 %1 %0 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel4 %4 %4 %4 %
Sand88 %88 %88 %37 %
Silt8 %8 %8 %43 %
Clay4 %4 %4 %20 %
USDA TextureSandSandSandLoam
Reference Bulk Density1.74 g/cm³1.74 g/cm³1.74 g/cm³1.4 g/cm³
Bulk Density1.51 g/cm³1.51 g/cm³1.51 g/cm³1.61 g/cm³
Organic Carbon0.39 %0.39 %0.39 %0.25 %
PH5555.3
Clay Cation Exchange Capacity66 cmol kg⁻¹66 cmol kg⁻¹66 cmol kg⁻¹63 cmol kg⁻¹
Soil Cation Exchange Capacity2 cmol kg⁻¹2 cmol kg⁻¹2 cmol kg⁻¹9 cmol kg⁻¹
Base Saturation21 %21 %21 %59 %
Total Exchangeable Bases1.5 cmol kg⁻¹1.5 cmol kg⁻¹1.5 cmol kg⁻¹4.9 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %
Exchangeable Sodium3 %3 %3 %0 %
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