REGION DE PRESSAC, ETANG DE COMBOURG

Location:France
Area:8,300 acres (3,359 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

Western European broadleaf forests

Soils

Link to Map
Protected Area Boundary
 ABC
    
Share50 %30 %10 %10 %50 %30 %20 %50 %30 %20 %
Soil TypeHaplic LuvisolsChromic CambisolsChromic LuvisolsAlbic LuvisolsGleyic LuvisolsDystric CambisolsAlbic LuvisolsDystric PodzoluvisolsGleyic LuvisolsDystric Planosols
Topsoil TextureMediumMediumMediumCoarseMediumMediumMediumMediumMediumMedium
Reference Depth100 cm100 cm100 cm100 cm100 cm100 cm100 cm100 cm100 cm100 cm
DrainageModerately wellModerately wellModerately wellModerately wellPoorModerately wellModerately wellModerately wellPoorPoor
Available Water Capacity50 m100 m50 m50 m150 m150 m100 m50 m50 m15 m
Phase 1GravellyStonyGravellyGravelly   StonyStonyStony
Phase 2Stony StonyStony      
Root ObstacleNone to 80 cm60 - 80 cmNone to 80 cmNone to 80 cm60 - 80 cm40 - 60 cm60 - 80 cmNone to 80 cmNone to 80 cmNone to 80 cm
Impermeable Layer80 - 150 cmNone to 150 cmNone to 150 cm80 - 150 cm None to 150 cm40 - 80 cm40 - 80 cm40 - 80 cm0 - 40 cm
Soil Water RegimeWet 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 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 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 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 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 %10 %12 %4 %5 %10 %9 %1 %5 %4 %
Sand41 %49 %48 %87 %47 %42 %37 %31 %47 %42 %
Silt37 %28 %28 %8 %29 %38 %45 %54 %29 %38 %
Clay22 %23 %24 %5 %24 %20 %18 %15 %24 %20 %
USDA TextureLoamLoamLoamLoamy sandLoamLoamLoamSilt loamLoamLoam
Reference Bulk Density1.4 g/cm³1.4 g/cm³1.4 g/cm³1.7 g/cm³1.39 g/cm³1.41 g/cm³1.42 g/cm³1.43 g/cm³1.39 g/cm³1.41 g/cm³
Bulk Density1.43 g/cm³1.31 g/cm³1.53 g/cm³1.44 g/cm³1.54 g/cm³1.3 g/cm³1.4 g/cm³1.36 g/cm³1.54 g/cm³1.38 g/cm³
Organic Carbon0.74 %0.98 %0.83 %0.4 %0.83 %1.45 %0.82 %1.59 %0.83 %1.14 %
PH6.56.66.36.56.35.1656.34.5
Clay Cation Exchange Capacity47 cmol kg⁻¹42 cmol kg⁻¹39 cmol kg⁻¹30 cmol kg⁻¹46 cmol kg⁻¹32 cmol kg⁻¹53 cmol kg⁻¹63 cmol kg⁻¹46 cmol kg⁻¹25 cmol kg⁻¹
Soil Cation Exchange Capacity13 cmol kg⁻¹13 cmol kg⁻¹12 cmol kg⁻¹3 cmol kg⁻¹16 cmol kg⁻¹12 cmol kg⁻¹13 cmol kg⁻¹19 cmol kg⁻¹16 cmol kg⁻¹7 cmol kg⁻¹
Base Saturation91 %83 %88 %86 %93 %38 %75 %55 %93 %40 %
Total Exchangeable Bases11 cmol kg⁻¹11.6 cmol kg⁻¹10 cmol kg⁻¹2.6 cmol kg⁻¹14.9 cmol kg⁻¹4.3 cmol kg⁻¹11.7 cmol kg⁻¹5.7 cmol kg⁻¹14.9 cmol kg⁻¹2.2 cmol kg⁻¹
Calcium Carbonate0 %0.1 %0 %0.2 %0 %0 %0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %0 %0 %0 %0 %0 %
Exchangeable Sodium1 %2 %1 %2 %2 %2 %0 %0 %2 %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-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel3 %9 %8 %5 %6 %19 %19 %4 %6 %4 %
Sand37 %47 %41 %82 %39 %45 %33 %24 %39 %28 %
Silt34 %26 %25 %8 %27 %35 %35 %50 %27 %29 %
Clay29 %27 %34 %10 %34 %20 %32 %26 %34 %43 %
USDA TextureClay loamSandy clay loamClay loamLoamy sandClay loamLoamClay loamSilt loamClay loamClay
Reference Bulk Density1.35 g/cm³1.38 g/cm³1.33 g/cm³1.59 g/cm³1.33 g/cm³1.42 g/cm³1.32 g/cm³1.34 g/cm³1.33 g/cm³1.27 g/cm³
Bulk Density1.51 g/cm³1.44 g/cm³1.51 g/cm³1.55 g/cm³1.65 g/cm³1.36 g/cm³1.58 g/cm³1.61 g/cm³1.65 g/cm³1.41 g/cm³
Organic Carbon0.36 %0.47 %0.4 %0.24 %0.28 %0.5 %0.38 %0.2 %0.28 %0.37 %
PH6.76.76.46.975.26.35.374.8
Clay Cation Exchange Capacity50 cmol kg⁻¹44 cmol kg⁻¹41 cmol kg⁻¹48 cmol kg⁻¹44 cmol kg⁻¹35 cmol kg⁻¹54 cmol kg⁻¹67 cmol kg⁻¹44 cmol kg⁻¹26 cmol kg⁻¹
Soil Cation Exchange Capacity14 cmol kg⁻¹15 cmol kg⁻¹15 cmol kg⁻¹5 cmol kg⁻¹16 cmol kg⁻¹9 cmol kg⁻¹21 cmol kg⁻¹14 cmol kg⁻¹16 cmol kg⁻¹10 cmol kg⁻¹
Base Saturation93 %92 %90 %100 %99 %33 %84 %59 %99 %57 %
Total Exchangeable Bases13.1 cmol kg⁻¹11.9 cmol kg⁻¹12 cmol kg⁻¹5.2 cmol kg⁻¹15.9 cmol kg⁻¹2.6 cmol kg⁻¹19.5 cmol kg⁻¹4.9 cmol kg⁻¹15.9 cmol kg⁻¹11.4 cmol kg⁻¹
Calcium Carbonate0 %0.1 %0 %5.4 %0.4 %0 %0 %0 %0.4 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %0 %0 %0 %0 %0 %
Exchangeable Sodium1 %1 %1 %4 %2 %2 %1 %0 %2 %7 %
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-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