PLAINE DE NERE A BRESDON

Location:France
Area:22,884 acres (9,261 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 TypeRendzic LeptosolsCalcaric CambisolsChromic CambisolsCalcaric CambisolsLithic Leptosols
Topsoil TextureMediumMediumMediumMediumFine
Reference Depth30 cm100 cm100 cm100 cm10 cm
DrainageImperfectlyModerately wellModerately wellModerately wellImperfectly
Available Water Capacity15 mm100 m100 m100 m15 mm
Phase 1StonyStonyStonyStonyStony
Root Obstacle 60 - 80 cm40 - 60 cm40 - 60 cm 
Impermeable Layer None to 150 cmNone to 150 cmNone to 150 cm 
Soil Water Regime Not 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 monthNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month 
Topsoil Properties
Gravel16 %6 %10 %6 %17 %
Sand37 %36 %49 %36 %28 %
Silt44 %43 %28 %43 %25 %
Clay19 %21 %23 %21 %47 %
USDA TextureLoamLoamLoamLoamClay
Reference Bulk Density1.41 g/cm³1.39 g/cm³1.4 g/cm³1.39 g/cm³1.26 g/cm³
Bulk Density1.24 g/cm³1.41 g/cm³1.31 g/cm³1.41 g/cm³1.4 g/cm³
Organic Carbon2.13 %0.65 %0.98 %0.65 %2.3 %
PH7.586.687.5
Clay Cation Exchange Capacity80 cmol kg⁻¹52 cmol kg⁻¹42 cmol kg⁻¹52 cmol kg⁻¹33 cmol kg⁻¹
Soil Cation Exchange Capacity27 cmol kg⁻¹16 cmol kg⁻¹13 cmol kg⁻¹16 cmol kg⁻¹35 cmol kg⁻¹
Base Saturation100 %100 %83 %100 %100 %
Total Exchangeable Bases28.8 cmol kg⁻¹24.3 cmol kg⁻¹11.6 cmol kg⁻¹24.3 cmol kg⁻¹37.6 cmol kg⁻¹
Calcium Carbonate6 %7 %0.1 %7 %1.4 %
Calcium Sulphate0 %0 %0 %0 %0 %
Exchangeable Sodium2 %1 %2 %1 %1 %
Electrical Conductivity0.1 dS m-10.4 dS m-10.1 dS m-10.4 dS m-10.4 dS m-1
Subsoil Properties
Gravel 10 %9 %10 % 
Sand 34 %47 %34 % 
Silt 43 %26 %43 % 
Clay 23 %27 %23 % 
USDA Texture LoamSandy clay loamLoam 
Reference Bulk Density 1.38 g/cm³1.38 g/cm³1.38 g/cm³ 
Bulk Density 1.45 g/cm³1.44 g/cm³1.45 g/cm³ 
Organic Carbon 0.43 %0.47 %0.43 % 
PH 8.16.78.1 
Clay Cation Exchange Capacity 54 cmol kg⁻¹44 cmol kg⁻¹54 cmol kg⁻¹ 
Soil Cation Exchange Capacity 16 cmol kg⁻¹15 cmol kg⁻¹16 cmol kg⁻¹ 
Base Saturation 100 %92 %100 % 
Total Exchangeable Bases 28.7 cmol kg⁻¹11.9 cmol kg⁻¹28.7 cmol kg⁻¹ 
Calcium Carbonate 8.7 %0.1 %8.7 % 
Calcium Sulphate 0.4 %0 %0.4 % 
Exchangeable Sodium 1 %1 %1 % 
Electrical Conductivity 0.3 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