World Species : Protected Area : REGION DE PRESSAC, ETANG DE COMBOURG

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

— Protected Area Boundary

	A				B			C

Share	50 %	30 %	10 %	10 %	50 %	30 %	20 %	50 %	30 %	20 %
Soil Type	Haplic Luvisols	Chromic Cambisols	Chromic Luvisols	Albic Luvisols	Gleyic Luvisols	Dystric Cambisols	Albic Luvisols	Dystric Podzoluvisols	Gleyic Luvisols	Dystric Planosols
Topsoil Texture	Medium	Medium	Medium	Coarse	Medium	Medium	Medium	Medium	Medium	Medium
Reference Depth	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm
Drainage	Moderately well	Moderately well	Moderately well	Moderately well	Poor	Moderately well	Moderately well	Moderately well	Poor	Poor
Available Water Capacity	50 m	100 m	50 m	50 m	150 m	150 m	100 m	50 m	50 m	15 m
Phase 1	Gravelly	Stony	Gravelly	Gravelly				Stony	Stony	Stony
Phase 2	Stony		Stony	Stony
Root Obstacle	None to 80 cm	60 - 80 cm	None to 80 cm	None to 80 cm	60 - 80 cm	40 - 60 cm	60 - 80 cm	None to 80 cm	None to 80 cm	None to 80 cm
Impermeable Layer	80 - 150 cm	None to 150 cm	None to 150 cm	80 - 150 cm		None to 150 cm	40 - 80 cm	40 - 80 cm	40 - 80 cm	0 - 40 cm
Soil Water Regime	Wet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 month	Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month	Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month	Wet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 month	Wet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 month	Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month	Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month	Wet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 month	Wet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 month	Wet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 month
Topsoil Properties
Gravel	4 %	10 %	12 %	4 %	5 %	10 %	9 %	1 %	5 %	4 %
Sand	41 %	49 %	48 %	87 %	47 %	42 %	37 %	31 %	47 %	42 %
Silt	37 %	28 %	28 %	8 %	29 %	38 %	45 %	54 %	29 %	38 %
Clay	22 %	23 %	24 %	5 %	24 %	20 %	18 %	15 %	24 %	20 %
USDA Texture	Loam	Loam	Loam	Loamy sand	Loam	Loam	Loam	Silt loam	Loam	Loam
Reference Bulk Density	1.4 g/cm³	1.4 g/cm³	1.4 g/cm³	1.7 g/cm³	1.39 g/cm³	1.41 g/cm³	1.42 g/cm³	1.43 g/cm³	1.39 g/cm³	1.41 g/cm³
Bulk Density	1.43 g/cm³	1.31 g/cm³	1.53 g/cm³	1.44 g/cm³	1.54 g/cm³	1.3 g/cm³	1.4 g/cm³	1.36 g/cm³	1.54 g/cm³	1.38 g/cm³
Organic Carbon	0.74 %	0.98 %	0.83 %	0.4 %	0.83 %	1.45 %	0.82 %	1.59 %	0.83 %	1.14 %
PH	6.5	6.6	6.3	6.5	6.3	5.1	6	5	6.3	4.5
Clay Cation Exchange Capacity	47 cmol kg⁻¹	42 cmol kg⁻¹	39 cmol kg⁻¹	30 cmol kg⁻¹	46 cmol kg⁻¹	32 cmol kg⁻¹	53 cmol kg⁻¹	63 cmol kg⁻¹	46 cmol kg⁻¹	25 cmol kg⁻¹
Soil Cation Exchange Capacity	13 cmol kg⁻¹	13 cmol kg⁻¹	12 cmol kg⁻¹	3 cmol kg⁻¹	16 cmol kg⁻¹	12 cmol kg⁻¹	13 cmol kg⁻¹	19 cmol kg⁻¹	16 cmol kg⁻¹	7 cmol kg⁻¹
Base Saturation	91 %	83 %	88 %	86 %	93 %	38 %	75 %	55 %	93 %	40 %
Total Exchangeable Bases	11 cmol kg⁻¹	11.6 cmol kg⁻¹	10 cmol kg⁻¹	2.6 cmol kg⁻¹	14.9 cmol kg⁻¹	4.3 cmol kg⁻¹	11.7 cmol kg⁻¹	5.7 cmol kg⁻¹	14.9 cmol kg⁻¹	2.2 cmol kg⁻¹
Calcium Carbonate	0 %	0.1 %	0 %	0.2 %	0 %	0 %	0 %	0 %	0 %	0 %
Calcium Sulphate	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %
Exchangeable Sodium	1 %	2 %	1 %	2 %	2 %	2 %	0 %	0 %	2 %	2 %
Electrical Conductivity	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1
Subsoil Properties
Gravel	3 %	9 %	8 %	5 %	6 %	19 %	19 %	4 %	6 %	4 %
Sand	37 %	47 %	41 %	82 %	39 %	45 %	33 %	24 %	39 %	28 %
Silt	34 %	26 %	25 %	8 %	27 %	35 %	35 %	50 %	27 %	29 %
Clay	29 %	27 %	34 %	10 %	34 %	20 %	32 %	26 %	34 %	43 %
USDA Texture	Clay loam	Sandy clay loam	Clay loam	Loamy sand	Clay loam	Loam	Clay loam	Silt loam	Clay loam	Clay
Reference Bulk Density	1.35 g/cm³	1.38 g/cm³	1.33 g/cm³	1.59 g/cm³	1.33 g/cm³	1.42 g/cm³	1.32 g/cm³	1.34 g/cm³	1.33 g/cm³	1.27 g/cm³
Bulk Density	1.51 g/cm³	1.44 g/cm³	1.51 g/cm³	1.55 g/cm³	1.65 g/cm³	1.36 g/cm³	1.58 g/cm³	1.61 g/cm³	1.65 g/cm³	1.41 g/cm³
Organic Carbon	0.36 %	0.47 %	0.4 %	0.24 %	0.28 %	0.5 %	0.38 %	0.2 %	0.28 %	0.37 %
PH	6.7	6.7	6.4	6.9	7	5.2	6.3	5.3	7	4.8
Clay Cation Exchange Capacity	50 cmol kg⁻¹	44 cmol kg⁻¹	41 cmol kg⁻¹	48 cmol kg⁻¹	44 cmol kg⁻¹	35 cmol kg⁻¹	54 cmol kg⁻¹	67 cmol kg⁻¹	44 cmol kg⁻¹	26 cmol kg⁻¹
Soil Cation Exchange Capacity	14 cmol kg⁻¹	15 cmol kg⁻¹	15 cmol kg⁻¹	5 cmol kg⁻¹	16 cmol kg⁻¹	9 cmol kg⁻¹	21 cmol kg⁻¹	14 cmol kg⁻¹	16 cmol kg⁻¹	10 cmol kg⁻¹
Base Saturation	93 %	92 %	90 %	100 %	99 %	33 %	84 %	59 %	99 %	57 %
Total Exchangeable Bases	13.1 cmol kg⁻¹	11.9 cmol kg⁻¹	12 cmol kg⁻¹	5.2 cmol kg⁻¹	15.9 cmol kg⁻¹	2.6 cmol kg⁻¹	19.5 cmol kg⁻¹	4.9 cmol kg⁻¹	15.9 cmol kg⁻¹	11.4 cmol kg⁻¹
Calcium Carbonate	0 %	0.1 %	0 %	5.4 %	0.4 %	0 %	0 %	0 %	0.4 %	0 %
Calcium Sulphate	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %
Exchangeable Sodium	1 %	1 %	1 %	4 %	2 %	2 %	1 %	0 %	2 %	7 %
Electrical Conductivity	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 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