World Species : Protected Area : Gorges de la Truyère

Gorges de la Truyère

Location:	France
Area:	53,380 acres (21,602 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		D		E		F

Share	70 %	30 %	70 %	15 %	15 %	70 %	30 %	70 %	30 %	70 %	30 %	50 %	30 %	20 %
Soil Type	Umbric Leptosols	Haplic Podzols	Haplic Andosols	Haplic Andosols	Mollic Andosols	Dystric Cambisols	Humic Cambisols	Dystric Cambisols	Haplic Luvisols	Dystric Cambisols	Lithic Leptosols	Cambic Podzols	Dystric Cambisols	Haplic Podzols
Topsoil Texture	Medium	Medium	Medium	Medium	Medium	Coarse	Coarse	Medium	Medium	Medium	Coarse	Medium	Medium	Coarse
Reference Depth	30 cm	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	10 cm	100 cm	100 cm	100 cm
Drainage	Imperfectly	Moderately well	Moderately well	Moderately well	Moderately well	Well	Well	Moderately well	Moderately well	Moderately well	Moderately well	Moderately well	Moderately well	Somewhat excessive
Available Water Capacity	15 mm	50 m	150 m	150 m	150 m	100 m	100 m	50 m	150 m	100 m	0 mm	50 m	50 m	15 m
Phase 1	Gravelly	Gravelly						Gravelly		Stony	Stony	Gravelly	Gravelly	Gravelly
Phase 2	Stony	Stony										Stony	Stony	Stony
Root Obstacle		40 - 60 cm	None to 80 cm	None to 80 cm	None to 80 cm	60 - 80 cm	60 - 80 cm	60 - 80 cm	None to 80 cm	40 - 60 cm		60 - 80 cm	60 - 80 cm	60 - 80 cm
Impermeable Layer		None to 150 cm	None to 150 cm	None to 150 cm	None to 150 cm	None to 150 cm	None to 150 cm	None to 150 cm	None to 150 cm	None to 150 cm		None to 150 cm	None to 150 cm	None to 150 cm
Soil Water Regime		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	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	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	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	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	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
Topsoil Properties
Gravel	6 %	15 %	4 %	4 %	14 %	10 %	5 %	10 %	4 %	10 %	21 %	15 %	10 %	3 %
Sand	49 %	50 %	32 %	32 %	39 %	75 %	74 %	42 %	41 %	42 %	73 %	48 %	42 %	87 %
Silt	31 %	40 %	47 %	47 %	39 %	15 %	14 %	38 %	37 %	38 %	18 %	40 %	38 %	9 %
Clay	20 %	10 %	21 %	21 %	22 %	10 %	12 %	20 %	22 %	20 %	9 %	12 %	20 %	4 %
USDA Texture	Loam	Loam	Loam	Loam	Loam	Sandy loam	Sandy loam	Loam	Loam	Loam	Sandy loam	Loam	Loam	Loamy sand
Reference Bulk Density	1.43 g/cm³	1.53 g/cm³	1.38 g/cm³	1.38 g/cm³	1.39 g/cm³	1.58 g/cm³	1.55 g/cm³	1.41 g/cm³	1.4 g/cm³	1.41 g/cm³	1.59 g/cm³	1.5 g/cm³	1.41 g/cm³	1.73 g/cm³
Bulk Density	1.1 g/cm³	1.41 g/cm³	0.76 g/cm³	0.76 g/cm³	0.86 g/cm³	1.49 g/cm³	1.16 g/cm³	1.3 g/cm³	1.43 g/cm³	1.3 g/cm³	1.45 g/cm³	0.96 g/cm³	1.3 g/cm³	1.4 g/cm³
Organic Carbon	2.4 %	5.27 %	6.74 %	6.74 %	3.43 %	0.7 %	1.58 %	1.45 %	0.74 %	1.45 %	1.4 %	3.15 %	1.45 %	2.18 %
PH	5.1	4.5	5.9	5.9	6.7	5.1	5.3	5.1	6.5	5.1	7.5	5	5.1	4.4
Clay Cation Exchange Capacity	34 cmol kg⁻¹	89 cmol kg⁻¹	78 cmol kg⁻¹	78 cmol kg⁻¹	98 cmol kg⁻¹	21 cmol kg⁻¹	78 cmol kg⁻¹	32 cmol kg⁻¹	47 cmol kg⁻¹	32 cmol kg⁻¹	85 cmol kg⁻¹	66 cmol kg⁻¹	32 cmol kg⁻¹	101 cmol kg⁻¹
Soil Cation Exchange Capacity	12 cmol kg⁻¹	28 cmol kg⁻¹	30 cmol kg⁻¹	30 cmol kg⁻¹	30 cmol kg⁻¹	5 cmol kg⁻¹	8 cmol kg⁻¹	12 cmol kg⁻¹	13 cmol kg⁻¹	12 cmol kg⁻¹	12 cmol kg⁻¹	17 cmol kg⁻¹	12 cmol kg⁻¹	9 cmol kg⁻¹
Base Saturation	36 %	11 %	16 %	16 %	78 %	28 %	42 %	38 %	91 %	38 %	86 %	10 %	38 %	11 %
Total Exchangeable Bases	4.7 cmol kg⁻¹	5.6 cmol kg⁻¹	6.4 cmol kg⁻¹	6.4 cmol kg⁻¹	24.5 cmol kg⁻¹	1.5 cmol kg⁻¹	6.1 cmol kg⁻¹	4.3 cmol kg⁻¹	11 cmol kg⁻¹	4.3 cmol kg⁻¹	5.2 cmol kg⁻¹	4.4 cmol kg⁻¹	4.3 cmol kg⁻¹	2.6 cmol kg⁻¹
Calcium Carbonate	0 %	0 %	0 %	0 %	0.1 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %
Calcium Sulphate	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %
Exchangeable Sodium	4 %	1 %	1 %	1 %	1 %	5 %	3 %	2 %	1 %	2 %	1 %	0 %	2 %	1 %
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	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1
Subsoil Properties
Gravel		15 %	9 %	9 %	18 %	9 %	9 %	19 %	3 %	19 %		17 %	19 %	4 %
Sand		55 %	34 %	34 %	40 %	68 %	72 %	45 %	37 %	45 %		55 %	45 %	88 %
Silt		35 %	44 %	44 %	36 %	17 %	12 %	35 %	34 %	35 %		33 %	35 %	8 %
Clay		10 %	22 %	22 %	24 %	15 %	16 %	20 %	29 %	20 %		12 %	20 %	4 %
USDA Texture		Sandy loam	Loam	Loam	Loam	Sandy loam	Sandy loam	Loam	Clay loam	Loam		Sandy loam	Loam	Sand
Reference Bulk Density		1.54 g/cm³	1.38 g/cm³	1.38 g/cm³	1.38 g/cm³	1.51 g/cm³	1.5 g/cm³	1.42 g/cm³	1.35 g/cm³	1.42 g/cm³		1.51 g/cm³	1.42 g/cm³	1.74 g/cm³
Bulk Density		1.44 g/cm³	0.79 g/cm³	0.79 g/cm³	0.81 g/cm³	1.5 g/cm³	1.37 g/cm³	1.36 g/cm³	1.51 g/cm³	1.36 g/cm³		1.29 g/cm³	1.36 g/cm³	1.51 g/cm³
Organic Carbon		0.81 %	1.99 %	1.99 %	1.41 %	0.27 %	0.76 %	0.5 %	0.36 %	0.5 %		1.13 %	0.5 %	0.39 %
PH		5	6.1	6.1	6.8	5	6.2	5.2	6.7	5.2		5.1	5.2	5
Clay Cation Exchange Capacity		55 cmol kg⁻¹	79 cmol kg⁻¹	79 cmol kg⁻¹	85 cmol kg⁻¹	31 cmol kg⁻¹	79 cmol kg⁻¹	35 cmol kg⁻¹	50 cmol kg⁻¹	35 cmol kg⁻¹		65 cmol kg⁻¹	35 cmol kg⁻¹	66 cmol kg⁻¹
Soil Cation Exchange Capacity		8 cmol kg⁻¹	27 cmol kg⁻¹	27 cmol kg⁻¹	29 cmol kg⁻¹	5 cmol kg⁻¹	12 cmol kg⁻¹	9 cmol kg⁻¹	14 cmol kg⁻¹	9 cmol kg⁻¹		13 cmol kg⁻¹	9 cmol kg⁻¹	2 cmol kg⁻¹
Base Saturation		13 %	33 %	33 %	78 %	36 %	51 %	33 %	93 %	33 %		13 %	33 %	21 %
Total Exchangeable Bases		0.8 cmol kg⁻¹	4.7 cmol kg⁻¹	4.7 cmol kg⁻¹	22.5 cmol kg⁻¹	1.4 cmol kg⁻¹	3.9 cmol kg⁻¹	2.6 cmol kg⁻¹	13.1 cmol kg⁻¹	2.6 cmol kg⁻¹		0.8 cmol kg⁻¹	2.6 cmol kg⁻¹	1.5 cmol kg⁻¹
Calcium Carbonate		0 %	0 %	0 %	0.3 %	0 %	0 %	0 %	0 %	0 %		0 %	0 %	0 %
Calcium Sulphate		0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %		0 %	0 %	0 %
Exchangeable Sodium		0 %	1 %	1 %	2 %	5 %	0 %	2 %	1 %	2 %		0 %	2 %	3 %
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	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