World Species : Protected Area : Ivailovgrad Reservoir

Ivailovgrad Reservoir

Location:	Bulgaria
Area:	48,577 acres (19,658 hectares)
Species:	All Endangered Invasive
Climate:	View Climate Data
Land Use:	View Land Use Data
Köppen climate classification:	Cfa (Climate: warm temperate; Precipitation: fully humid; Temperature: hot summer)
Natura 2000 Data Sheet:	View Data Sheet Explanatory notes

Ecoregions

Balkan mixed forests
Rodope montane mixed forests

Soils

— Protected Area Boundary

	A				B						C

Share	30 %	30 %	30 %	10 %	30 %	20 %	20 %	10 %	10 %	10 %	50 %	20 %	10 %	10 %	5 %	5 %
Soil Type	Eutric Vertisols	Vertic Cambisols	Calcic Vertisols	Calcaric Fluvisols	Chromic Luvisols	Eutric Cambisols	Eutric Regosols	Chromic Luvisols	Lithic Leptosols	Haplic Acrisols	Chromic Luvisols	Chromic Luvisols	Umbric Leptosols	Lithic Leptosols	Eutric Regosols	Eutric Cambisols
Topsoil Texture	Fine	Fine	Fine	Fine	Medium	Medium	Medium	Coarse	Medium	Medium	Medium	Medium	Medium	Medium	Medium	Medium
Reference Depth	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	100 cm	10 cm	100 cm	100 cm	100 cm	30 cm	10 cm	100 cm	100 cm
Drainage	Poor	Moderately well	Poor	Very poor	Moderately well	Moderately well	Imperfectly	Moderately well	Imperfectly	Moderately well	Moderately well	Moderately well	Imperfectly	Imperfectly	Moderately well	Moderately well
Available Water Capacity	125 m	50 m	125 m	150 m	50 m	50 m	15 m	50 m	15 mm	50 m	100 m	100 m	15 mm	15 mm	100 m	100 m
Phase 1		Concretionary			Gravelly	Gravelly	Gravelly	Gravelly		Gravelly	Stony	Stony	Stony	Stony	Stony	Stony
Phase 2							Lithic
Root Obstacle	None to 80 cm	None to 80 cm	None to 80 cm	None to 80 cm	60 - 80 cm	60 - 80 cm	40 - 60 cm	60 - 80 cm		60 - 80 cm	20 - 40 cm	20 - 40 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	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	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	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			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
Misc. Property	Vertic (cracks of more than 1 cm wide)	Vertic (cracks of more than 1 cm wide)	Vertic (cracks of more than 1 cm wide)
Topsoil Properties
Gravel	4 %	2 %	3 %	4 %	12 %	9 %	25 %	4 %	21 %	10 %	12 %	12 %	6 %	21 %	25 %	9 %
Sand	19 %	20 %	17 %	14 %	48 %	42 %	47 %	80 %	42 %	52 %	48 %	48 %	49 %	42 %	47 %	42 %
Silt	25 %	29 %	27 %	39 %	28 %	36 %	34 %	9 %	34 %	24 %	28 %	28 %	31 %	34 %	34 %	36 %
Clay	56 %	51 %	56 %	47 %	24 %	22 %	19 %	11 %	24 %	24 %	24 %	24 %	20 %	24 %	19 %	22 %
USDA Texture	Clay	Clay	Clay	Clay	Loam	Loam	Loam	Sandy loam	Loam	Sandy clay loam	Loam	Loam	Loam	Loam	Loam	Loam
Reference Bulk Density	1.22 g/cm³	1.23 g/cm³	1.21 g/cm³	1.23 g/cm³	1.4 g/cm³	1.4 g/cm³	1.43 g/cm³	1.57 g/cm³	1.38 g/cm³	1.41 g/cm³	1.4 g/cm³	1.4 g/cm³	1.43 g/cm³	1.38 g/cm³	1.43 g/cm³	1.4 g/cm³
Bulk Density	1.56 g/cm³	1.43 g/cm³	1.33 g/cm³	1.41 g/cm³	1.53 g/cm³	1.37 g/cm³	1.21 g/cm³	1.51 g/cm³	1.3 g/cm³	1.43 g/cm³	1.53 g/cm³	1.53 g/cm³	1.1 g/cm³	1.3 g/cm³	1.21 g/cm³	1.37 g/cm³
Organic Carbon	1.05 %	0.96 %	0.72 %	0.97 %	0.83 %	1 %	0.98 %	0.45 %	1.61 %	1 %	0.83 %	0.83 %	2.4 %	1.61 %	0.98 %	1 %
PH	6.9	7.3	7.9	8	6.3	6.6	6.4	6.4	7.5	4.9	6.3	6.3	5.1	7.5	6.4	6.6
Clay Cation Exchange Capacity	70 cmol kg⁻¹	54 cmol kg⁻¹	80 cmol kg⁻¹	51 cmol kg⁻¹	39 cmol kg⁻¹	55 cmol kg⁻¹	40 cmol kg⁻¹	36 cmol kg⁻¹	42 cmol kg⁻¹	13 cmol kg⁻¹	39 cmol kg⁻¹	39 cmol kg⁻¹	34 cmol kg⁻¹	42 cmol kg⁻¹	40 cmol kg⁻¹	55 cmol kg⁻¹
Soil Cation Exchange Capacity	43 cmol kg⁻¹	36 cmol kg⁻¹	46 cmol kg⁻¹	28 cmol kg⁻¹	12 cmol kg⁻¹	16 cmol kg⁻¹	12 cmol kg⁻¹	6 cmol kg⁻¹	16 cmol kg⁻¹	6 cmol kg⁻¹	12 cmol kg⁻¹	12 cmol kg⁻¹	12 cmol kg⁻¹	16 cmol kg⁻¹	12 cmol kg⁻¹	16 cmol kg⁻¹
Base Saturation	100 %	94 %	100 %	100 %	88 %	93 %	78 %	79 %	100 %	47 %	88 %	88 %	36 %	100 %	78 %	93 %
Total Exchangeable Bases	40.9 cmol kg⁻¹	27.4 cmol kg⁻¹	51.7 cmol kg⁻¹	22.3 cmol kg⁻¹	10 cmol kg⁻¹	14 cmol kg⁻¹	14 cmol kg⁻¹	5.1 cmol kg⁻¹	15.5 cmol kg⁻¹	3.2 cmol kg⁻¹	10 cmol kg⁻¹	10 cmol kg⁻¹	4.7 cmol kg⁻¹	15.5 cmol kg⁻¹	14 cmol kg⁻¹	14 cmol kg⁻¹
Calcium Carbonate	0.2 %	0.3 %	5.4 %	13.3 %	0 %	0 %	0 %	0 %	3.9 %	0 %	0 %	0 %	0 %	3.9 %	0 %	0 %
Calcium Sulphate	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %	0 %
Exchangeable Sodium	1 %	1 %	2 %	2 %	1 %	2 %	1 %	2 %	3 %	2 %	1 %	1 %	4 %	3 %	1 %	2 %
Electrical Conductivity	0.1 dS m-1	0.1 dS m-1	0.4 dS m-1	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	5 %	4 %	4 %	3 %	8 %	12 %	28 %	5 %		10 %	8 %	8 %			28 %	12 %
Sand	18 %	18 %	17 %	15 %	41 %	41 %	51 %	72 %		43 %	41 %	41 %			51 %	41 %
Silt	24 %	29 %	26 %	40 %	25 %	34 %	31 %	9 %		21 %	25 %	25 %			31 %	34 %
Clay	58 %	53 %	57 %	45 %	34 %	25 %	18 %	19 %		36 %	34 %	34 %			18 %	25 %
USDA Texture	Clay	Clay	Clay	Clay	Clay loam	Loam	Loam	Sandy loam		Clay loam	Clay loam	Clay loam			Loam	Loam
Reference Bulk Density	1.21 g/cm³	1.22 g/cm³	1.21 g/cm³	1.24 g/cm³	1.33 g/cm³	1.38 g/cm³	1.44 g/cm³	1.48 g/cm³		1.32 g/cm³	1.33 g/cm³	1.33 g/cm³			1.44 g/cm³	1.38 g/cm³
Bulk Density	1.6 g/cm³	1.46 g/cm³	1.42 g/cm³	1.46 g/cm³	1.51 g/cm³	1.39 g/cm³	1.45 g/cm³	1.52 g/cm³		1.4 g/cm³	1.51 g/cm³	1.51 g/cm³			1.45 g/cm³	1.39 g/cm³
Organic Carbon	0.59 %	0.43 %	0.5 %	0.45 %	0.4 %	0.37 %	0.4 %	0.26 %		0.43 %	0.4 %	0.4 %			0.4 %	0.37 %
PH	7.5	7.7	8.1	7.9	6.4	7	6.9	6.6		4.9	6.4	6.4			6.9	7
Clay Cation Exchange Capacity	70 cmol kg⁻¹	61 cmol kg⁻¹	77 cmol kg⁻¹	51 cmol kg⁻¹	41 cmol kg⁻¹	55 cmol kg⁻¹	56 cmol kg⁻¹	36 cmol kg⁻¹		12 cmol kg⁻¹	41 cmol kg⁻¹	41 cmol kg⁻¹			56 cmol kg⁻¹	55 cmol kg⁻¹
Soil Cation Exchange Capacity	42 cmol kg⁻¹	35 cmol kg⁻¹	46 cmol kg⁻¹	21 cmol kg⁻¹	15 cmol kg⁻¹	15 cmol kg⁻¹	11 cmol kg⁻¹	8 cmol kg⁻¹		6 cmol kg⁻¹	15 cmol kg⁻¹	15 cmol kg⁻¹			11 cmol kg⁻¹	15 cmol kg⁻¹
Base Saturation	100 %	99 %	100 %	100 %	90 %	93 %	89 %	79 %		32 %	90 %	90 %			89 %	93 %
Total Exchangeable Bases	44.2 cmol kg⁻¹	34.3 cmol kg⁻¹	54 cmol kg⁻¹	20.9 cmol kg⁻¹	12 cmol kg⁻¹	15.1 cmol kg⁻¹	10.3 cmol kg⁻¹	6.3 cmol kg⁻¹		2.2 cmol kg⁻¹	12 cmol kg⁻¹	12 cmol kg⁻¹			10.3 cmol kg⁻¹	15.1 cmol kg⁻¹
Calcium Carbonate	0.8 %	4 %	8.2 %	19.2 %	0 %	0.1 %	0 %	0 %		0 %	0 %	0 %			0 %	0.1 %
Calcium Sulphate	0 %	0 %	0.5 %	0.2 %	0 %	0 %	0 %	0 %		0 %	0 %	0 %			0 %	0 %
Exchangeable Sodium	2 %	2 %	3 %	3 %	1 %	2 %	2 %	2 %		2 %	1 %	1 %			2 %	2 %
Electrical Conductivity	0.1 dS m-1	0.1 dS m-1	0.5 dS m-1	1.9 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