World Species : Protected Area : Roskilde Fjord

Roskilde Fjord

Location:	Denmark
Area:	33,293 acres (13,473 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

Baltic mixed forests

Soils

— Protected Area Boundary

	A					B

Share	60 %	20 %	10 %	5 %	5 %	50 %	30 %	10 %	5 %	5 %
Soil Type	Haplic Luvisols	Gleyic Luvisols	Eutric Cambisols	Cambic Arenosols	Mollic Gleysols	Haplic Podzols	Cambic Arenosols	Gleyic Podzols	Dystric Gleysols	Terric Histosols
Topsoil Texture	Coarse	Coarse	Coarse	Coarse	Coarse	Coarse	Coarse	Coarse	Coarse	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	Poor	Well	Somewhat excessive	Poor	Somewhat excessive	Somewhat excessive	Poor	Poor	Very poor
Available Water Capacity	150 m	150 m	100 m	100 m	150 m	100 m	100 m	100 m	150 m	150 m
Root Obstacle	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	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	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 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	Wet within 80 cm over 6 months, but not wet within 40 cm for over 11 month	Wet within 80 cm over 6 months, but not wet within 40 cm for over 11 month
Topsoil Properties
Gravel	4 %	4 %	10 %	2 %	10 %	3 %	2 %	2 %	10 %	28 %
Sand	82 %	80 %	77 %	89 %	76 %	87 %	89 %	86 %	74 %	35 %
Silt	8 %	11 %	14 %	6 %	14 %	9 %	6 %	10 %	16 %	33 %
Clay	10 %	9 %	9 %	5 %	10 %	4 %	5 %	4 %	10 %	32 %
USDA Texture	Loamy sand	Loamy sand	Sandy loam	Sand	Sandy loam	Loamy sand	Sand	Loamy sand	Sandy loam	Clay loam
Reference Bulk Density	1.59 g/cm³	1.6 g/cm³	1.6 g/cm³	1.7 g/cm³	1.58 g/cm³	1.73 g/cm³	1.7 g/cm³	1.73 g/cm³	1.57 g/cm³	1.32 g/cm³
Bulk Density	1.43 g/cm³	1.44 g/cm³	1.5 g/cm³	1.57 g/cm³	1.48 g/cm³	1.4 g/cm³	1.57 g/cm³	1.31 g/cm³	1.4 g/cm³	0.28 g/cm³
Organic Carbon	0.4 %	0.63 %	0.7 %	0.5 %	0.89 %	2.18 %	0.5 %	1.97 %	0.93 %	39.4 %
PH	6.5	6.5	6.9	6	6.4	4.4	6	4.4	5.2	5.6
Clay Cation Exchange Capacity	48 cmol kg⁻¹	54 cmol kg⁻¹	49 cmol kg⁻¹	40 cmol kg⁻¹	43 cmol kg⁻¹	101 cmol kg⁻¹	40 cmol kg⁻¹	52 cmol kg⁻¹	20 cmol kg⁻¹	45 cmol kg⁻¹
Soil Cation Exchange Capacity	6 cmol kg⁻¹	6 cmol kg⁻¹	7 cmol kg⁻¹	3 cmol kg⁻¹	8 cmol kg⁻¹	9 cmol kg⁻¹	3 cmol kg⁻¹	6 cmol kg⁻¹	5 cmol kg⁻¹	87 cmol kg⁻¹
Base Saturation	89 %	83 %	91 %	99 %	73 %	11 %	99 %	18 %	48 %	75 %
Total Exchangeable Bases	5.9 cmol kg⁻¹	6.1 cmol kg⁻¹	6.7 cmol kg⁻¹	2 cmol kg⁻¹	6.3 cmol kg⁻¹	2.6 cmol kg⁻¹	2 cmol kg⁻¹	3.6 cmol kg⁻¹	2.6 cmol kg⁻¹	59.5 cmol kg⁻¹
Calcium Carbonate	0 %	0.1 %	0.1 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %
Calcium Sulphate	0 %	0.1 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %
Exchangeable Sodium	2 %	2 %	2 %	2 %	2 %	1 %	2 %	1 %	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
Subsoil Properties
Gravel	6 %	5 %	20 %	1 %	8 %	4 %	1 %	3 %	8 %	5 %
Sand	75 %	68 %	67 %	89 %	60 %	88 %	89 %	85 %	68 %	52 %
Silt	8 %	10 %	16 %	6 %	14 %	8 %	6 %	10 %	16 %	23 %
Clay	17 %	22 %	17 %	5 %	26 %	4 %	5 %	5 %	16 %	25 %
USDA Texture	Sandy loam	Sandy clay loam	Sandy loam	Sand	Sandy clay loam	Sand	Sand	Loamy sand	Sandy loam	Sandy clay loam
Reference Bulk Density	1.5 g/cm³	1.45 g/cm³	1.48 g/cm³	1.7 g/cm³	1.41 g/cm³	1.74 g/cm³	1.7 g/cm³	1.7 g/cm³	1.49 g/cm³	1.38 g/cm³
Bulk Density	1.57 g/cm³	1.55 g/cm³	1.5 g/cm³	1.55 g/cm³	1.64 g/cm³	1.51 g/cm³	1.55 g/cm³	1.54 g/cm³	1.57 g/cm³	0.18 g/cm³
Organic Carbon	0.24 %	0.3 %	0.4 %	0.3 %	0.6 %	0.39 %	0.3 %	0.91 %	0.23 %	38.46 %
PH	6.5	6.4	7.3	5.9	6.7	5	5.9	4.9	5	5.8
Clay Cation Exchange Capacity	53 cmol kg⁻¹	43 cmol kg⁻¹	48 cmol kg⁻¹	42 cmol kg⁻¹	43 cmol kg⁻¹	66 cmol kg⁻¹	42 cmol kg⁻¹	44 cmol kg⁻¹	23 cmol kg⁻¹	49 cmol kg⁻¹
Soil Cation Exchange Capacity	10 cmol kg⁻¹	9 cmol kg⁻¹	8 cmol kg⁻¹	2 cmol kg⁻¹	13 cmol kg⁻¹	2 cmol kg⁻¹	2 cmol kg⁻¹	3 cmol kg⁻¹	4 cmol kg⁻¹	88 cmol kg⁻¹
Base Saturation	88 %	80 %	91 %	98 %	81 %	21 %	98 %	21 %	54 %	96 %
Total Exchangeable Bases	8.1 cmol kg⁻¹	5.9 cmol kg⁻¹	9.3 cmol kg⁻¹	1.4 cmol kg⁻¹	11.7 cmol kg⁻¹	1.5 cmol kg⁻¹	1.4 cmol kg⁻¹	1.7 cmol kg⁻¹	3.4 cmol kg⁻¹	81.8 cmol kg⁻¹
Calcium Carbonate	0 %	0.1 %	0.1 %	0 %	0.1 %	0 %	0 %	0 %	0 %	0 %
Calcium Sulphate	0 %	0.1 %	0 %	0 %	0.1 %	0 %	0 %	0 %	0 %	0 %
Exchangeable Sodium	1 %	1 %	2 %	3 %	3 %	3 %	3 %	3 %	3 %	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

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