World Species : Protected Area : Norfolk Valley Fens

Norfolk Valley Fens

Location:	England, United Kingdom
Area:	1,523 acres (616 hectares)
Species:	All Endangered Invasive
Website:	View website
Climate:	View Climate Data
Köppen climate classification:	Cfb (Climate: warm temperate; Precipitation: fully humid; Temperature: warm summer)
Natura 2000 Data Sheet:	View Data Sheet Explanatory notes

Ecoregions

Celtic broadleaf forests

Soils

— Protected Area Boundary

	A				B				C

Share	50 %	30 %	10 %	10 %	40 %	30 %	20 %	10 %	45 %	15 %	15 %	7 %	5 %	5 %	5 %	3 %
Soil Type	Luvic Arenosols	Cambic Arenosols	Rendzic Leptosols	Haplic Podzols	Stagnic Luvisols	Haplic Luvisols	Gleyic Cambisols	Eutric Planosols	Chromic Luvisols	Eutric Cambisols	Stagnic Luvisols	Luvic Arenosols	Haplic Luvisols	Haplic Acrisols	Eutric Podzoluvisols	Haplic Podzols
Topsoil Texture	Coarse	Coarse	Coarse	Coarse	Medium	Medium	Medium	Coarse	Coarse	Medium	Medium	Coarse	Medium	Coarse	Coarse	Coarse
Reference Depth	100 cm	100 cm	30 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
Drainage	Moderately well	Somewhat excessive	Moderately well	Somewhat excessive	Poor	Moderately well	Poor	Poor	Moderately well	Moderately well	Poor	Moderately well	Moderately well	Moderately well	Moderately well	Somewhat excessive
Available Water Capacity	100 m	100 m	50 mm	100 m	100 m	100 m	100 m	100 m	150 m	150 m	100 m	15 m	150 m	15 m	15 m	15 m
Phase 1												Gravelly		Gravelly	Gravelly	Gravelly
Root Obstacle	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	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
Impermeable Layer	None to 150 cm	None to 150 cm		None to 150 cm	40 - 80 cm	40 - 80 cm	40 - 80 cm	40 - 80 cm	None to 150 cm	None to 150 cm	40 - 80 cm	None to 150 cm	None to 150 cm	40 - 80 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	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 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 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	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	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	3 %	2 %	21 %	3 %	4 %	4 %	4 %	4 %	4 %	9 %	4 %	3 %	4 %	4 %	1 %	3 %
Sand	90 %	89 %	76 %	87 %	37 %	41 %	45 %	80 %	80 %	42 %	37 %	90 %	41 %	81 %	75 %	87 %
Silt	5 %	6 %	16 %	9 %	44 %	37 %	36 %	11 %	9 %	36 %	44 %	5 %	37 %	9 %	19 %	9 %
Clay	5 %	5 %	8 %	4 %	19 %	22 %	19 %	9 %	11 %	22 %	19 %	5 %	22 %	10 %	6 %	4 %
USDA Texture	Sand	Sand	Sandy loam	Loamy sand	Loam	Loam	Loam	Sandy loam	Sandy loam	Loam	Loam	Sand	Loam	Sandy loam	Sandy loam	Loamy sand
Reference Bulk Density	1.71 g/cm³	1.7 g/cm³	1.61 g/cm³	1.73 g/cm³	1.41 g/cm³	1.4 g/cm³	1.42 g/cm³	1.6 g/cm³	1.57 g/cm³	1.4 g/cm³	1.41 g/cm³	1.71 g/cm³	1.4 g/cm³	1.59 g/cm³	1.63 g/cm³	1.73 g/cm³
Bulk Density	1.5 g/cm³	1.57 g/cm³	1.45 g/cm³	1.4 g/cm³	1.4 g/cm³	1.43 g/cm³	1.41 g/cm³	1.45 g/cm³	1.51 g/cm³	1.37 g/cm³	1.4 g/cm³	1.5 g/cm³	1.43 g/cm³	1.44 g/cm³	1.48 g/cm³	1.4 g/cm³
Organic Carbon	0.39 %	0.5 %	1.93 %	2.18 %	0.99 %	0.74 %	1 %	0.5 %	0.45 %	1 %	0.99 %	0.39 %	0.74 %	0.5 %	0.9 %	2.18 %
PH	5.8	6	7.2	4.4	5.8	6.5	6.4	5.9	6.4	6.6	5.8	5.8	6.5	5.5	5.5	4.4
Clay Cation Exchange Capacity	35 cmol kg⁻¹	40 cmol kg⁻¹	64 cmol kg⁻¹	101 cmol kg⁻¹	48 cmol kg⁻¹	47 cmol kg⁻¹	38 cmol kg⁻¹	27 cmol kg⁻¹	36 cmol kg⁻¹	55 cmol kg⁻¹	48 cmol kg⁻¹	35 cmol kg⁻¹	47 cmol kg⁻¹	19 cmol kg⁻¹	61 cmol kg⁻¹	101 cmol kg⁻¹
Soil Cation Exchange Capacity	3 cmol kg⁻¹	3 cmol kg⁻¹	14 cmol kg⁻¹	9 cmol kg⁻¹	12 cmol kg⁻¹	13 cmol kg⁻¹	9 cmol kg⁻¹	5 cmol kg⁻¹	6 cmol kg⁻¹	16 cmol kg⁻¹	12 cmol kg⁻¹	3 cmol kg⁻¹	13 cmol kg⁻¹	3 cmol kg⁻¹	6 cmol kg⁻¹	9 cmol kg⁻¹
Base Saturation	76 %	99 %	86 %	11 %	62 %	91 %	85 %	88 %	79 %	93 %	62 %	76 %	91 %	72 %	75 %	11 %
Total Exchangeable Bases	2 cmol kg⁻¹	2 cmol kg⁻¹	31.7 cmol kg⁻¹	2.6 cmol kg⁻¹	8.4 cmol kg⁻¹	11 cmol kg⁻¹	8.2 cmol kg⁻¹	5.1 cmol kg⁻¹	5.1 cmol kg⁻¹	14 cmol kg⁻¹	8.4 cmol kg⁻¹	2 cmol kg⁻¹	11 cmol kg⁻¹	3.6 cmol kg⁻¹	3.5 cmol kg⁻¹	2.6 cmol kg⁻¹
Calcium Carbonate	0 %	0 %	4.9 %	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 %
Exchangeable Sodium	3 %	2 %	1 %	1 %	1 %	1 %	2 %	3 %	2 %	2 %	1 %	3 %	1 %	3 %	0 %	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	0.1 dS m-1	0.1 dS m-1
Subsoil Properties
Gravel	4 %	1 %		4 %	4 %	3 %	18 %	7 %	5 %	12 %	4 %	4 %	3 %	6 %	3 %	4 %
Sand	87 %	89 %		88 %	31 %	37 %	39 %	63 %	72 %	41 %	31 %	87 %	37 %	67 %	79 %	88 %
Silt	5 %	6 %		8 %	38 %	34 %	34 %	12 %	9 %	34 %	38 %	5 %	34 %	10 %	14 %	8 %
Clay	8 %	5 %		4 %	31 %	29 %	27 %	25 %	19 %	25 %	31 %	8 %	29 %	23 %	7 %	4 %
USDA Texture	Loamy sand	Sand		Sand	Clay loam	Clay loam	Clay loam	Sandy clay loam	Sandy loam	Loam	Clay loam	Loamy sand	Clay loam	Sandy clay loam	Loamy sand	Sand
Reference Bulk Density	1.63 g/cm³	1.7 g/cm³		1.74 g/cm³	1.33 g/cm³	1.35 g/cm³	1.36 g/cm³	1.42 g/cm³	1.48 g/cm³	1.38 g/cm³	1.33 g/cm³	1.63 g/cm³	1.35 g/cm³	1.44 g/cm³	1.63 g/cm³	1.74 g/cm³
Bulk Density	1.5 g/cm³	1.55 g/cm³		1.51 g/cm³	1.6 g/cm³	1.51 g/cm³	1.6 g/cm³	1.63 g/cm³	1.52 g/cm³	1.39 g/cm³	1.6 g/cm³	1.5 g/cm³	1.51 g/cm³	1.5 g/cm³	1.68 g/cm³	1.51 g/cm³
Organic Carbon	0.2 %	0.3 %		0.39 %	0.29 %	0.36 %	0.47 %	0.28 %	0.26 %	0.37 %	0.29 %	0.2 %	0.36 %	0.3 %	0.28 %	0.39 %
PH	5.7	5.9		5	5.9	6.7	6.7	6.3	6.6	7	5.9	5.7	6.7	5.2	5.9	5
Clay Cation Exchange Capacity	34 cmol kg⁻¹	42 cmol kg⁻¹		66 cmol kg⁻¹	50 cmol kg⁻¹	50 cmol kg⁻¹	37 cmol kg⁻¹	36 cmol kg⁻¹	36 cmol kg⁻¹	55 cmol kg⁻¹	50 cmol kg⁻¹	34 cmol kg⁻¹	50 cmol kg⁻¹	13 cmol kg⁻¹	34 cmol kg⁻¹	66 cmol kg⁻¹
Soil Cation Exchange Capacity	3 cmol kg⁻¹	2 cmol kg⁻¹		2 cmol kg⁻¹	14 cmol kg⁻¹	14 cmol kg⁻¹	11 cmol kg⁻¹	11 cmol kg⁻¹	8 cmol kg⁻¹	15 cmol kg⁻¹	14 cmol kg⁻¹	3 cmol kg⁻¹	14 cmol kg⁻¹	3 cmol kg⁻¹	4 cmol kg⁻¹	2 cmol kg⁻¹
Base Saturation	75 %	98 %		21 %	83 %	93 %	88 %	98 %	79 %	93 %	83 %	75 %	93 %	42 %	63 %	21 %
Total Exchangeable Bases	2.3 cmol kg⁻¹	1.4 cmol kg⁻¹		1.5 cmol kg⁻¹	10.2 cmol kg⁻¹	13.1 cmol kg⁻¹	11.3 cmol kg⁻¹	13.5 cmol kg⁻¹	6.3 cmol kg⁻¹	15.1 cmol kg⁻¹	10.2 cmol kg⁻¹	2.3 cmol kg⁻¹	13.1 cmol kg⁻¹	2.4 cmol kg⁻¹	3.4 cmol kg⁻¹	1.5 cmol kg⁻¹
Calcium Carbonate	0 %	0 %		0 %	0 %	0 %	0.1 %	0 %	0 %	0.1 %	0 %	0 %	0 %	0 %	0 %	0 %
Calcium Sulphate	0 %	0 %		0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %
Exchangeable Sodium	3 %	3 %		3 %	1 %	1 %	2 %	3 %	2 %	2 %	1 %	3 %	1 %	3 %	0 %	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	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