World Species : Protected Area : Vallée de la Loire de Nantes aux Ponts-de-Cé et ses annexes

Vallée de la Loire de Nantes aux Ponts-de-Cé et ses annexes

Location:	France
Area:	38,830 acres (15,714 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

	A		B		C			D			E		F				G				H

Share	70 %	30 %	90 %	10 %	70 %	20 %	10 %	50 %	30 %	20 %	70 %	30 %	70 %	15 %	10 %	5 %	70 %	20 %	5 %	5 %	50 %	30 %	15 %	5 %
Soil Type	Eutric Fluvisols	Eutric Gleysols	Eutric Fluvisols	Eutric Gleysols	Calcaric Fluvisols	Calcic Gleysols	Terric Histosols	Eutric Cambisols	Eutric Cambisols	Calcaric Cambisols	Dystric Cambisols	Gleyic Luvisols	Dystric Cambisols	Gleyic Podzoluvisols	Haplic Luvisols	Umbric Leptosols	Dystric Cambisols	Cambic Podzols	Lithic Leptosols	Umbric Leptosols	Eutric Cambisols	Haplic Luvisols	Gleyic Podzoluvisols	Eutric Cambisols
Topsoil Texture	Medium	Fine	Medium	Medium	Coarse	Medium	Medium	Medium	Medium	Medium	Medium	Medium	Medium	Medium	Medium	Medium	Coarse	Coarse	Coarse	Coarse	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	100 cm	100 cm	100 cm	100 cm	100 cm	30 cm	100 cm	100 cm	10 cm	30 cm	100 cm	100 cm	100 cm	100 cm
Drainage	Poor	Very poor	Poor	Poor	Poor	Poor	Very poor	Moderately well	Moderately well	Moderately well	Moderately well	Poor	Moderately well	Poor	Moderately well	Imperfectly	Moderately well	Somewhat excessive	Moderately well	Moderately well	Moderately well	Moderately well	Poor	Moderately well
Available Water Capacity	150 m	150 m	150 m	150 m	150 m	150 m	150 m	150 m	100 m	150 m	150 m	150 m	100 m	150 m	150 m	15 mm	15 m	50 m	0 mm	15 mm	50 m	150 m	100 m	150 m
Phase 1			Flooded	Flooded									Stony				Lithic	Stony	Stony	Stony
Phase 2																	Stony
Root Obstacle	None to 80 cm	None to 80 cm	40 - 60 cm	40 - 60 cm	None to 80 cm	None to 80 cm	None to 80 cm	None to 80 cm	None to 80 cm	None to 80 cm	None to 80 cm	None to 80 cm	40 - 60 cm	None to 80 cm	None to 80 cm		20 - 40 cm	40 - 60 cm			None to 80 cm	None to 80 cm	None to 80 cm	60 - 80 cm
Impermeable Layer	None to 150 cm	80 - 150 cm	80 - 150 cm	80 - 150 cm	None to 150 cm	80 - 150 cm	80 - 150 cm	None to 150 cm	40 - 80 cm	None to 150 cm	80 - 150 cm	80 - 150 cm	None to 150 cm	80 - 150 cm	None to 150 cm		None to 150 cm	None to 150 cm			0 - 40 cm	80 - 150 cm	40 - 80 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	Wet within 80 cm over 6 months, but not wet within 40 cm for over 11 month	Wet within 80 cm for 3 to 6 months, but not wet within 40 cm for over 1 month	Wet within 80 cm over 6 months, but not wet within 40 cm for over 11 month	Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month	Wet within 80 cm over 6 months, but not wet within 40 cm for over 11 month	Wet within 40 cm depth for over 11 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	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	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	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			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	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
Topsoil Properties
Gravel	4 %	1 %	4 %	4 %	10 %	4 %	28 %	9 %	9 %	6 %	10 %	5 %	10 %	1 %	4 %	6 %	10 %	3 %	21 %	10 %	9 %	4 %	1 %	9 %
Sand	39 %	17 %	39 %	37 %	79 %	41 %	35 %	42 %	42 %	36 %	42 %	47 %	42 %	32 %	41 %	49 %	75 %	85 %	73 %	79 %	42 %	41 %	32 %	42 %
Silt	40 %	32 %	40 %	40 %	15 %	40 %	33 %	36 %	36 %	43 %	38 %	29 %	38 %	49 %	37 %	31 %	15 %	10 %	18 %	13 %	36 %	37 %	49 %	36 %
Clay	21 %	51 %	21 %	23 %	6 %	19 %	32 %	22 %	22 %	21 %	20 %	24 %	20 %	19 %	22 %	20 %	10 %	5 %	9 %	8 %	22 %	22 %	19 %	22 %
USDA Texture	Loam	Clay	Loam	Loam	Loamy sand	Loam	Clay loam	Loam	Loam	Loam	Loam	Loam	Loam	Loam	Loam	Loam	Sandy loam	Loamy sand	Sandy loam	Loamy sand	Loam	Loam	Loam	Loam
Reference Bulk Density	1.4 g/cm³	1.22 g/cm³	1.4 g/cm³	1.38 g/cm³	1.66 g/cm³	1.42 g/cm³	1.32 g/cm³	1.4 g/cm³	1.4 g/cm³	1.39 g/cm³	1.41 g/cm³	1.39 g/cm³	1.41 g/cm³	1.4 g/cm³	1.4 g/cm³	1.43 g/cm³	1.58 g/cm³	1.7 g/cm³	1.59 g/cm³	1.62 g/cm³	1.4 g/cm³	1.4 g/cm³	1.4 g/cm³	1.4 g/cm³
Bulk Density	1.36 g/cm³	1.25 g/cm³	1.36 g/cm³	1.35 g/cm³	1.4 g/cm³	1.31 g/cm³	0.28 g/cm³	1.37 g/cm³	1.37 g/cm³	1.41 g/cm³	1.3 g/cm³	1.54 g/cm³	1.3 g/cm³	1.35 g/cm³	1.43 g/cm³	1.1 g/cm³	1.49 g/cm³	1.41 g/cm³	1.45 g/cm³	1.45 g/cm³	1.37 g/cm³	1.43 g/cm³	1.35 g/cm³	1.37 g/cm³
Organic Carbon	0.86 %	1.25 %	0.86 %	1.07 %	0.41 %	1.3 %	39.4 %	1 %	1 %	0.65 %	1.45 %	0.83 %	1.45 %	2.22 %	0.74 %	2.4 %	0.7 %	2.02 %	1.4 %	2.59 %	1 %	0.74 %	2.22 %	1 %
PH	7.2	5.8	7.2	6.2	8.3	7	5.6	6.6	6.6	8	5.1	6.3	5.1	5.3	6.5	5.1	5.1	4.3	7.5	4.7	6.6	6.5	5.3	6.6
Clay Cation Exchange Capacity	63 cmol kg⁻¹	37 cmol kg⁻¹	63 cmol kg⁻¹	41 cmol kg⁻¹	109 cmol kg⁻¹	37 cmol kg⁻¹	45 cmol kg⁻¹	55 cmol kg⁻¹	55 cmol kg⁻¹	52 cmol kg⁻¹	32 cmol kg⁻¹	46 cmol kg⁻¹	32 cmol kg⁻¹	36 cmol kg⁻¹	47 cmol kg⁻¹	34 cmol kg⁻¹	21 cmol kg⁻¹	78 cmol kg⁻¹	85 cmol kg⁻¹	24 cmol kg⁻¹	55 cmol kg⁻¹	47 cmol kg⁻¹	36 cmol kg⁻¹	55 cmol kg⁻¹
Soil Cation Exchange Capacity	16 cmol kg⁻¹	25 cmol kg⁻¹	16 cmol kg⁻¹	13 cmol kg⁻¹	6 cmol kg⁻¹	13 cmol kg⁻¹	87 cmol kg⁻¹	16 cmol kg⁻¹	16 cmol kg⁻¹	16 cmol kg⁻¹	12 cmol kg⁻¹	16 cmol kg⁻¹	12 cmol kg⁻¹	17 cmol kg⁻¹	13 cmol kg⁻¹	12 cmol kg⁻¹	5 cmol kg⁻¹	5 cmol kg⁻¹	12 cmol kg⁻¹	8 cmol kg⁻¹	16 cmol kg⁻¹	13 cmol kg⁻¹	17 cmol kg⁻¹	16 cmol kg⁻¹
Base Saturation	91 %	78 %	91 %	88 %	100 %	82 %	75 %	93 %	93 %	100 %	38 %	93 %	38 %	55 %	91 %	36 %	28 %	17 %	86 %	86 %	93 %	91 %	55 %	93 %
Total Exchangeable Bases	16.9 cmol kg⁻¹	18.9 cmol kg⁻¹	16.9 cmol kg⁻¹	10.2 cmol kg⁻¹	11 cmol kg⁻¹	8.8 cmol kg⁻¹	59.5 cmol kg⁻¹	14 cmol kg⁻¹	14 cmol kg⁻¹	24.3 cmol kg⁻¹	4.3 cmol kg⁻¹	14.9 cmol kg⁻¹	4.3 cmol kg⁻¹	5.7 cmol kg⁻¹	11 cmol kg⁻¹	4.7 cmol kg⁻¹	1.5 cmol kg⁻¹	2.5 cmol kg⁻¹	5.2 cmol kg⁻¹	5.2 cmol kg⁻¹	14 cmol kg⁻¹	11 cmol kg⁻¹	5.7 cmol kg⁻¹	14 cmol kg⁻¹
Calcium Carbonate	0.5 %	0 %	0.5 %	0 %	9.1 %	1 %	0 %	0 %	0 %	7 %	0 %	0 %	0 %	0 %	0 %	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 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %
Exchangeable Sodium	2 %	2 %	2 %	2 %	4 %	2 %	1 %	2 %	2 %	1 %	2 %	2 %	2 %	0 %	1 %	4 %	5 %	0 %	1 %	0 %	2 %	1 %	0 %	2 %
Electrical Conductivity	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.4 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.4 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	0.1 dS m-1
Subsoil Properties
Gravel	7 %	1 %	7 %	5 %	10 %	5 %	5 %	12 %	12 %	10 %	19 %	6 %	19 %	4 %	3 %		9 %	3 %			12 %	3 %	4 %	12 %
Sand	41 %	19 %	41 %	36 %	79 %	44 %	52 %	41 %	41 %	34 %	45 %	39 %	45 %	25 %	37 %		68 %	86 %			41 %	37 %	25 %	41 %
Silt	38 %	29 %	38 %	36 %	15 %	37 %	23 %	34 %	34 %	43 %	35 %	27 %	35 %	51 %	34 %		17 %	10 %			34 %	34 %	51 %	34 %
Clay	21 %	52 %	21 %	28 %	6 %	19 %	25 %	25 %	25 %	23 %	20 %	34 %	20 %	24 %	29 %		15 %	4 %			25 %	29 %	24 %	25 %
USDA Texture	Loam	Clay	Loam	Clay loam	Loamy sand	Loam	Sandy clay loam	Loam	Loam	Loam	Loam	Clay loam	Loam	Silt loam	Clay loam		Sandy loam	Loamy sand			Loam	Clay loam	Silt loam	Loam
Reference Bulk Density	1.4 g/cm³	1.23 g/cm³	1.4 g/cm³	1.35 g/cm³	1.66 g/cm³	1.42 g/cm³	1.38 g/cm³	1.38 g/cm³	1.38 g/cm³	1.38 g/cm³	1.42 g/cm³	1.33 g/cm³	1.42 g/cm³	1.35 g/cm³	1.35 g/cm³		1.51 g/cm³	1.73 g/cm³			1.38 g/cm³	1.35 g/cm³	1.35 g/cm³	1.38 g/cm³
Bulk Density	1.39 g/cm³	1.35 g/cm³	1.39 g/cm³	1.5 g/cm³	1.5 g/cm³	1.47 g/cm³	0.18 g/cm³	1.39 g/cm³	1.39 g/cm³	1.45 g/cm³	1.36 g/cm³	1.65 g/cm³	1.36 g/cm³	1.6 g/cm³	1.51 g/cm³		1.5 g/cm³	1.57 g/cm³			1.39 g/cm³	1.51 g/cm³	1.6 g/cm³	1.39 g/cm³
Organic Carbon	0.38 %	0.45 %	0.38 %	0.37 %	0.17 %	0.44 %	38.46 %	0.37 %	0.37 %	0.43 %	0.5 %	0.28 %	0.5 %	0.5 %	0.36 %		0.27 %	0.51 %			0.37 %	0.36 %	0.5 %	0.37 %
PH	7.5	6	7.5	6.6	8.3	7.2	5.8	7	7	8.1	5.2	7	5.2	5.4	6.7		5	4.8			7	6.7	5.4	7
Clay Cation Exchange Capacity	61 cmol kg⁻¹	40 cmol kg⁻¹	61 cmol kg⁻¹	42 cmol kg⁻¹	137 cmol kg⁻¹	40 cmol kg⁻¹	49 cmol kg⁻¹	55 cmol kg⁻¹	55 cmol kg⁻¹	54 cmol kg⁻¹	35 cmol kg⁻¹	44 cmol kg⁻¹	35 cmol kg⁻¹	40 cmol kg⁻¹	50 cmol kg⁻¹		31 cmol kg⁻¹	50 cmol kg⁻¹			55 cmol kg⁻¹	50 cmol kg⁻¹	40 cmol kg⁻¹	55 cmol kg⁻¹
Soil Cation Exchange Capacity	14 cmol kg⁻¹	23 cmol kg⁻¹	14 cmol kg⁻¹	13 cmol kg⁻¹	6 cmol kg⁻¹	12 cmol kg⁻¹	88 cmol kg⁻¹	15 cmol kg⁻¹	15 cmol kg⁻¹	16 cmol kg⁻¹	9 cmol kg⁻¹	16 cmol kg⁻¹	9 cmol kg⁻¹	14 cmol kg⁻¹	14 cmol kg⁻¹		5 cmol kg⁻¹	2 cmol kg⁻¹			15 cmol kg⁻¹	14 cmol kg⁻¹	14 cmol kg⁻¹	15 cmol kg⁻¹
Base Saturation	96 %	84 %	96 %	90 %	94 %	86 %	96 %	93 %	93 %	100 %	33 %	99 %	33 %	59 %	93 %		36 %	21 %			93 %	93 %	59 %	93 %
Total Exchangeable Bases	15.2 cmol kg⁻¹	17 cmol kg⁻¹	15.2 cmol kg⁻¹	11.9 cmol kg⁻¹	13.9 cmol kg⁻¹	10 cmol kg⁻¹	81.8 cmol kg⁻¹	15.1 cmol kg⁻¹	15.1 cmol kg⁻¹	28.7 cmol kg⁻¹	2.6 cmol kg⁻¹	15.9 cmol kg⁻¹	2.6 cmol kg⁻¹	4.9 cmol kg⁻¹	13.1 cmol kg⁻¹		1.4 cmol kg⁻¹	1.5 cmol kg⁻¹			15.1 cmol kg⁻¹	13.1 cmol kg⁻¹	4.9 cmol kg⁻¹	15.1 cmol kg⁻¹
Calcium Carbonate	2.5 %	0 %	2.5 %	0 %	9.9 %	1 %	0 %	0.1 %	0.1 %	8.7 %	0 %	0.4 %	0 %	0 %	0 %		0 %	0 %			0.1 %	0 %	0 %	0.1 %
Calcium Sulphate	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0.4 %	0 %	0 %	0 %	0 %	0 %		0 %	0 %			0 %	0 %	0 %	0 %
Exchangeable Sodium	3 %	3 %	3 %	2 %	4 %	2 %	1 %	2 %	2 %	1 %	2 %	2 %	2 %	0 %	1 %		5 %	0 %			2 %	1 %	0 %	2 %
Electrical Conductivity	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.4 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.3 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