World Species : Protected Area : Mendip Woodlands

Mendip Woodlands

Location:	England, United Kingdom
Area:	627 acres (254 hectares)
Species:	All Endangered Invasive
Website:	View website
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

English Lowlands beech forests

Soils

— Protected Area Boundary

	A				B

Share	50 %	20 %	15 %	15 %	50 %	20 %	10 %	8 %	7 %	5 %
Soil Type	Dystric Cambisols	Dystric Cambisols	Eutric Cambisols	Gleyic Cambisols	Chromic Luvisols	Eutric Cambisols	Dystric Cambisols	Lithic Leptosols	Calcaric Regosols	Rendzic Leptosols
Topsoil Texture	Medium	Medium	Medium	Medium	Medium	Medium	Medium	Medium	Medium	Medium
Reference Depth	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	10 cm	100 cm	30 cm
Drainage	Imperfectly	Imperfectly	Imperfectly	Poor	Imperfectly	Moderately well	Moderately well	Imperfectly	Imperfectly	Imperfectly
Available Water Capacity	50 m	50 m	50 m	100 m	50 m	150 m	150 m	15 mm	15 m	15 mm
Phase 1	Lithic	Lithic	Lithic		Lithic			Stony	Stony	Stony
Phase 2									Lithic
Root Obstacle	60 - 80 cm	60 - 80 cm	60 - 80 cm	None to 80 cm	60 - 80 cm	40 - 60 cm	40 - 60 cm		60 - 80 cm
Impermeable Layer	None to 150 cm	None to 150 cm	None to 150 cm	40 - 80 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	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		Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month
Topsoil Properties
Gravel	10 %	10 %	9 %	4 %	12 %	9 %	10 %	21 %	14 %	16 %
Sand	42 %	42 %	42 %	45 %	48 %	42 %	42 %	42 %	44 %	37 %
Silt	38 %	38 %	36 %	36 %	28 %	36 %	38 %	34 %	35 %	44 %
Clay	20 %	20 %	22 %	19 %	24 %	22 %	20 %	24 %	21 %	19 %
USDA Texture	Loam	Loam	Loam	Loam	Loam	Loam	Loam	Loam	Loam	Loam
Reference Bulk Density	1.41 g/cm³	1.41 g/cm³	1.4 g/cm³	1.42 g/cm³	1.4 g/cm³	1.4 g/cm³	1.41 g/cm³	1.38 g/cm³	1.41 g/cm³	1.41 g/cm³
Bulk Density	1.3 g/cm³	1.3 g/cm³	1.37 g/cm³	1.41 g/cm³	1.53 g/cm³	1.37 g/cm³	1.3 g/cm³	1.3 g/cm³	1.37 g/cm³	1.24 g/cm³
Organic Carbon	1.45 %	1.45 %	1 %	1 %	0.83 %	1 %	1.45 %	1.61 %	0.75 %	2.13 %
PH	5.1	5.1	6.6	6.4	6.3	6.6	5.1	7.5	8	7.5
Clay Cation Exchange Capacity	32 cmol kg⁻¹	32 cmol kg⁻¹	55 cmol kg⁻¹	38 cmol kg⁻¹	39 cmol kg⁻¹	55 cmol kg⁻¹	32 cmol kg⁻¹	42 cmol kg⁻¹	45 cmol kg⁻¹	80 cmol kg⁻¹
Soil Cation Exchange Capacity	12 cmol kg⁻¹	12 cmol kg⁻¹	16 cmol kg⁻¹	9 cmol kg⁻¹	12 cmol kg⁻¹	16 cmol kg⁻¹	12 cmol kg⁻¹	16 cmol kg⁻¹	17 cmol kg⁻¹	27 cmol kg⁻¹
Base Saturation	38 %	38 %	93 %	85 %	88 %	93 %	38 %	100 %	100 %	100 %
Total Exchangeable Bases	4.3 cmol kg⁻¹	4.3 cmol kg⁻¹	14 cmol kg⁻¹	8.2 cmol kg⁻¹	10 cmol kg⁻¹	14 cmol kg⁻¹	4.3 cmol kg⁻¹	15.5 cmol kg⁻¹	26.8 cmol kg⁻¹	28.8 cmol kg⁻¹
Calcium Carbonate	0 %	0 %	0 %	0 %	0 %	0 %	0 %	3.9 %	15 %	6 %
Calcium Sulphate	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %
Exchangeable Sodium	2 %	2 %	2 %	2 %	1 %	2 %	2 %	3 %	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	0.2 dS m-1	0.1 dS m-1
Subsoil Properties
Gravel	19 %	19 %	12 %	18 %	8 %	12 %	19 %		18 %
Sand	45 %	45 %	41 %	39 %	41 %	41 %	45 %		40 %
Silt	35 %	35 %	34 %	34 %	25 %	34 %	35 %		35 %
Clay	20 %	20 %	25 %	27 %	34 %	25 %	20 %		25 %
USDA Texture	Loam	Loam	Loam	Clay loam	Clay loam	Loam	Loam		Loam
Reference Bulk Density	1.42 g/cm³	1.42 g/cm³	1.38 g/cm³	1.36 g/cm³	1.33 g/cm³	1.38 g/cm³	1.42 g/cm³		1.37 g/cm³
Bulk Density	1.36 g/cm³	1.36 g/cm³	1.39 g/cm³	1.6 g/cm³	1.51 g/cm³	1.39 g/cm³	1.36 g/cm³		1.5 g/cm³
Organic Carbon	0.5 %	0.5 %	0.37 %	0.47 %	0.4 %	0.37 %	0.5 %		0.47 %
PH	5.2	5.2	7	6.7	6.4	7	5.2		8.1
Clay Cation Exchange Capacity	35 cmol kg⁻¹	35 cmol kg⁻¹	55 cmol kg⁻¹	37 cmol kg⁻¹	41 cmol kg⁻¹	55 cmol kg⁻¹	35 cmol kg⁻¹		52 cmol kg⁻¹
Soil Cation Exchange Capacity	9 cmol kg⁻¹	9 cmol kg⁻¹	15 cmol kg⁻¹	11 cmol kg⁻¹	15 cmol kg⁻¹	15 cmol kg⁻¹	9 cmol kg⁻¹		15 cmol kg⁻¹
Base Saturation	33 %	33 %	93 %	88 %	90 %	93 %	33 %		100 %
Total Exchangeable Bases	2.6 cmol kg⁻¹	2.6 cmol kg⁻¹	15.1 cmol kg⁻¹	11.3 cmol kg⁻¹	12 cmol kg⁻¹	15.1 cmol kg⁻¹	2.6 cmol kg⁻¹		36.5 cmol kg⁻¹
Calcium Carbonate	0 %	0 %	0.1 %	0.1 %	0 %	0.1 %	0 %		15 %
Calcium Sulphate	0 %	0 %	0 %	0 %	0 %	0 %	0 %		0 %
Exchangeable Sodium	2 %	2 %	2 %	2 %	1 %	2 %	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		0.3 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