Ilôt du Trévors

Location:France
Area:993 acres (402 hectares)
Species:All  Endangered  Invasive
Climate:View Climate Data
Köppen climate classification:Cfb (Climate: warm temperate; Precipitation: fully humid; Temperature: warm summer)
Natura 2000 Data Sheet:View Data Sheet  Explanatory notes

Soils

Protected Area Boundary
 A
  
Share70 %20 %10 %
Soil TypeHaplic LuvisolsEutric PodzoluvisolsGleyic Cambisols
Topsoil TextureMediumMediumMedium
Reference Depth100 cm100 cm100 cm
DrainageModerately wellModerately wellPoor
Available Water Capacity150 m100 m50 m
Root ObstacleNone to 80 cmNone to 80 cmNone to 80 cm
Impermeable LayerNone to 150 cm40 - 80 cm0 - 40 cm
Soil Water RegimeNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 monthWet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 monthWet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 month
Topsoil Properties
Gravel4 %1 %4 %
Sand41 %35 %45 %
Silt37 %54 %36 %
Clay22 %11 %19 %
USDA TextureLoamSilt loamLoam
Reference Bulk Density1.4 g/cm³1.49 g/cm³1.42 g/cm³
Bulk Density1.43 g/cm³1.36 g/cm³1.41 g/cm³
Organic Carbon0.74 %1.2 %1 %
PH6.55.46.4
Clay Cation Exchange Capacity47 cmol kg⁻¹48 cmol kg⁻¹38 cmol kg⁻¹
Soil Cation Exchange Capacity13 cmol kg⁻¹9 cmol kg⁻¹9 cmol kg⁻¹
Base Saturation91 %55 %85 %
Total Exchangeable Bases11 cmol kg⁻¹5.7 cmol kg⁻¹8.2 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %
Calcium Sulphate0 %0 %0 %
Exchangeable Sodium1 %0 %2 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel3 %4 %18 %
Sand37 %37 %39 %
Silt34 %43 %34 %
Clay29 %20 %27 %
USDA TextureClay loamLoamClay loam
Reference Bulk Density1.35 g/cm³1.4 g/cm³1.36 g/cm³
Bulk Density1.51 g/cm³1.61 g/cm³1.6 g/cm³
Organic Carbon0.36 %0.25 %0.47 %
PH6.75.36.7
Clay Cation Exchange Capacity50 cmol kg⁻¹63 cmol kg⁻¹37 cmol kg⁻¹
Soil Cation Exchange Capacity14 cmol kg⁻¹9 cmol kg⁻¹11 cmol kg⁻¹
Base Saturation93 %59 %88 %
Total Exchangeable Bases13.1 cmol kg⁻¹4.9 cmol kg⁻¹11.3 cmol kg⁻¹
Calcium Carbonate0 %0 %0.1 %
Calcium Sulphate0 %0 %0 %
Exchangeable Sodium1 %0 %2 %
Electrical Conductivity0.1 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