World Species : Protected Area : Naute Dam

Naute Dam

Location:	Namibia
IUCN Category:	V
Area:	58,352 acres (23,614 hectares)
Species:	All Endangered Invasive
Climate:	View Climate Data
Land Use:	View Land Use Data
Köppen climate classification:	BWh (Climate: arid; Precipitation: desert; Temperature: hot arid)

Ecoregions

Nama Karoo
Namibian savanna woodlands

Soils

— Protected Area Boundary

	A			B			C

Share	60 %	25 %	15 %	40 %	30 %	30 %	50 %	40 %	10 %
Soil Type	Eutric Leptosols	Calcaric Regosols	Petric Calcisols	Eutric Regosols	Haplic Calcisols	Eutric Leptosols	Eutric Leptosols	Calcaric Regosols	Petric Calcisols
Topsoil Texture	Medium	Coarse	Medium	Coarse	Medium	Coarse	Medium	Coarse	Medium
Reference Depth	30 cm	100 cm	100 cm	100 cm	100 cm	30 cm	30 cm	100 cm	100 cm
Drainage	Imperfectly	Somewhat excessive	Moderately well	Somewhat excessive	Moderately well	Moderately well	Imperfectly	Somewhat excessive	Moderately well
Available Water Capacity	50 mm	100 m	150 m	100 m	150 m	50 mm	50 mm	100 m	150 m
Misc. Property			Petric (strongly cemented or indurated layer starting within 100 cm)						Petric (strongly cemented or indurated layer starting within 100 cm)
Topsoil Properties
Gravel	19 %	16 %	8 %	10 %	0 %	5 %	19 %	16 %	2 %
Sand	70 %	77 %	69 %	81 %	42 %	73 %	70 %	77 %	61 %
Silt	20 %	16 %	17 %	14 %	41 %	17 %	20 %	16 %	24 %
Clay	10 %	7 %	14 %	5 %	17 %	10 %	10 %	7 %	15 %
USDA Texture	Sandy loam	Sandy loam	Sandy loam	Loamy sand	Loam	Sandy loam	Sandy loam	Sandy loam	Sandy loam
Reference Bulk Density	1.56 g/cm³	1.63 g/cm³	1.51 g/cm³	1.68 g/cm³	1.43 g/cm³	1.57 g/cm³	1.56 g/cm³	1.63 g/cm³	1.48 g/cm³
Bulk Density	1.35 g/cm³	1.23 g/cm³	1.45 g/cm³	1.22 g/cm³	1.34 g/cm³	1.36 g/cm³	1.35 g/cm³	1.23 g/cm³	1.47 g/cm³
Organic Carbon	0.48 %	0.22 %	0.54 %	0.14 %	0.63 %	0.38 %	0.48 %	0.22 %	0.29 %
PH	7.4	8.5	8.1	8.8	8.9	7.8	7.4	8.5	8.6
Clay Cation Exchange Capacity	39 cmol kg⁻¹	139 cmol kg⁻¹	43 cmol kg⁻¹	62 cmol kg⁻¹	63 cmol kg⁻¹	56 cmol kg⁻¹	39 cmol kg⁻¹	139 cmol kg⁻¹	51 cmol kg⁻¹
Soil Cation Exchange Capacity	5 cmol kg⁻¹	11 cmol kg⁻¹	8 cmol kg⁻¹	4 cmol kg⁻¹	12 cmol kg⁻¹	7 cmol kg⁻¹	5 cmol kg⁻¹	11 cmol kg⁻¹	9 cmol kg⁻¹
Base Saturation	93 %	100 %	100 %	100 %	100 %	97 %	93 %	100 %	100 %
Total Exchangeable Bases	4.7 cmol kg⁻¹	11 cmol kg⁻¹	8 cmol kg⁻¹	4 cmol kg⁻¹	12 cmol kg⁻¹	6.8 cmol kg⁻¹	4.7 cmol kg⁻¹	11 cmol kg⁻¹	9 cmol kg⁻¹
Calcium Carbonate	1.5 %	4.7 %	7.9 %	3 %	11.7 %	1.8 %	1.5 %	4.7 %	10.9 %
Calcium Sulphate	0.1 %	0.3 %	0.1 %	0.1 %	0.1 %	0.1 %	0.1 %	0.3 %	0.1 %
Exchangeable Sodium	1 %	2 %	2 %	2 %	0 %	3 %	1 %	2 %	0 %
Electrical Conductivity	0.3 dS m-1	0.2 dS m-1	0.2 dS m-1	0.1 dS m-1	0.3 dS m-1	0.3 dS m-1	0.3 dS m-1	0.2 dS m-1	0.2 dS m-1
Subsoil Properties
Gravel		47 %		10 %	0 %			47 %	2 %
Sand		64 %		78 %	39 %			64 %	65 %
Silt		22 %		17 %	37 %			22 %	16 %
Clay		14 %		5 %	24 %			14 %	19 %
USDA Texture		Sandy loam		Loamy sand	Loam			Sandy loam	Sandy loam
Reference Bulk Density		1.5 g/cm³		1.68 g/cm³	1.37 g/cm³			1.5 g/cm³	1.46 g/cm³
Bulk Density		1.48 g/cm³		1.18 g/cm³	1.28 g/cm³			1.48 g/cm³	1.44 g/cm³
Organic Carbon		0.18 %		0.06 %	0.42 %			0.18 %	0.37 %
PH		8.4		8.9	8.7			8.4	8
Clay Cation Exchange Capacity		69 cmol kg⁻¹		91 cmol kg⁻¹	37 cmol kg⁻¹			69 cmol kg⁻¹	39 cmol kg⁻¹
Soil Cation Exchange Capacity		9 cmol kg⁻¹		5 cmol kg⁻¹	10 cmol kg⁻¹			9 cmol kg⁻¹	8 cmol kg⁻¹
Base Saturation		100 %		100 %	100 %			100 %	100 %
Total Exchangeable Bases		9 cmol kg⁻¹		5 cmol kg⁻¹	10 cmol kg⁻¹			9 cmol kg⁻¹	8 cmol kg⁻¹
Calcium Carbonate		7.8 %		3 %	17.8 %			7.8 %	15.5 %
Calcium Sulphate		0.2 %		0.1 %	0.1 %			0.2 %	0.1 %
Exchangeable Sodium		4 %		1 %	1 %			4 %	3 %
Electrical Conductivity		0.3 dS m-1		0.1 dS m-1	0.3 dS m-1			0.3 dS m-1	0.2 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