Rivières de Pont-l'Abbé et de l'Odet

Location:France
Area:1,752 acres (709 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
   
Share50 %50 %50 %30 %15 %5 %
Soil TypeUmbric LeptosolsDystric CambisolsEutric CambisolsHaplic LuvisolsGleyic PodzoluvisolsEutric Cambisols
Topsoil TextureCoarseMediumMediumMediumMediumMedium
Reference Depth30 cm100 cm100 cm100 cm100 cm100 cm
DrainageModerately wellModerately wellModerately wellModerately wellPoorModerately well
Available Water Capacity15 mm150 m50 m150 m100 m150 m
Root Obstacle 60 - 80 cmNone to 80 cmNone to 80 cmNone to 80 cm60 - 80 cm
Impermeable Layer None to 150 cm0 - 40 cm80 - 150 cm40 - 80 cmNone to 150 cm
Soil Water Regime Not 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 monthNot 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 monthNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month
Topsoil Properties
Gravel10 %10 %9 %4 %1 %9 %
Sand79 %42 %42 %41 %32 %42 %
Silt13 %38 %36 %37 %49 %36 %
Clay8 %20 %22 %22 %19 %22 %
USDA TextureLoamy sandLoamLoamLoamLoamLoam
Reference Bulk Density1.62 g/cm³1.41 g/cm³1.4 g/cm³1.4 g/cm³1.4 g/cm³1.4 g/cm³
Bulk Density1.45 g/cm³1.3 g/cm³1.37 g/cm³1.43 g/cm³1.35 g/cm³1.37 g/cm³
Organic Carbon2.59 %1.45 %1 %0.74 %2.22 %1 %
PH4.75.16.66.55.36.6
Clay Cation Exchange Capacity24 cmol kg⁻¹32 cmol kg⁻¹55 cmol kg⁻¹47 cmol kg⁻¹36 cmol kg⁻¹55 cmol kg⁻¹
Soil Cation Exchange Capacity8 cmol kg⁻¹12 cmol kg⁻¹16 cmol kg⁻¹13 cmol kg⁻¹17 cmol kg⁻¹16 cmol kg⁻¹
Base Saturation86 %38 %93 %91 %55 %93 %
Total Exchangeable Bases5.2 cmol kg⁻¹4.3 cmol kg⁻¹14 cmol kg⁻¹11 cmol kg⁻¹5.7 cmol kg⁻¹14 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %0 %
Exchangeable Sodium0 %2 %2 %1 %0 %2 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel 19 %12 %3 %4 %12 %
Sand 45 %41 %37 %25 %41 %
Silt 35 %34 %34 %51 %34 %
Clay 20 %25 %29 %24 %25 %
USDA Texture LoamLoamClay loamSilt loamLoam
Reference Bulk Density 1.42 g/cm³1.38 g/cm³1.35 g/cm³1.35 g/cm³1.38 g/cm³
Bulk Density 1.36 g/cm³1.39 g/cm³1.51 g/cm³1.6 g/cm³1.39 g/cm³
Organic Carbon 0.5 %0.37 %0.36 %0.5 %0.37 %
PH 5.276.75.47
Clay Cation Exchange Capacity 35 cmol kg⁻¹55 cmol kg⁻¹50 cmol kg⁻¹40 cmol kg⁻¹55 cmol kg⁻¹
Soil Cation Exchange Capacity 9 cmol kg⁻¹15 cmol kg⁻¹14 cmol kg⁻¹14 cmol kg⁻¹15 cmol kg⁻¹
Base Saturation 33 %93 %93 %59 %93 %
Total Exchangeable Bases 2.6 cmol kg⁻¹15.1 cmol kg⁻¹13.1 cmol kg⁻¹4.9 cmol kg⁻¹15.1 cmol kg⁻¹
Calcium Carbonate 0 %0.1 %0 %0 %0.1 %
Calcium Sulphate 0 %0 %0 %0 %0 %
Exchangeable Sodium 2 %2 %1 %0 %2 %
Electrical Conductivity 0.1 dS m-10.1 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