World Species : Protected Area : Reserva de la Biosfera Sierra de Manantlan

Reserva de la Biosfera Sierra de Manantlan

Location:	Coahuila, Mexico
IUCN Category:	VI
Area:	346,925 acres (140,396 hectares)
Species:	All Endangered Invasive
Climate:	View Climate Data
Land Use:	View Land Use Data
Köppen climate classification:	Aw (Climate: equatorial; Precipitation: winter dry)

Ecoregions

Jalisco dry forests
Trans-Mexican Volcanic Belt pine-oak forests

Soils

— Protected Area Boundary

	A				B

Share	56 %	14 %	18 %	12 %	30 %	20 %	15 %	20 %	10 %	5 %
Soil Type	Eutric Regosols	Chromic Cambisols	Chromic Cambisols	Eutric Regosols	Lithic Leptosols	Haplic Phaeozems	Eutric Regosols	Eutric Regosols	Haplic Phaeozems	Chromic Cambisols
Topsoil Texture	Coarse	Fine	Fine	Coarse	Medium	Fine	Coarse	Coarse	Fine	Fine
Reference Depth	100 cm	100 cm	100 cm	100 cm	10 cm	100 cm	100 cm	100 cm	100 cm	100 cm
Drainage	Somewhat excessive	Moderately well	Moderately well	Somewhat excessive	Imperfectly	Moderately well	Somewhat excessive	Somewhat excessive	Moderately well	Moderately well
Available Water Capacity	100 m	150 m	150 m	100 m	15 mm	150 m	100 m	100 m	150 m	150 m
Topsoil Properties
Gravel	19 %	4 %	4 %	19 %	28 %	4 %	19 %	19 %	4 %	4 %
Sand	73 %	25 %	25 %	73 %	70 %	25 %	73 %	73 %	25 %	25 %
Silt	23 %	21 %	21 %	23 %	20 %	35 %	23 %	23 %	35 %	21 %
Clay	4 %	54 %	54 %	4 %	10 %	40 %	4 %	4 %	40 %	54 %
USDA Texture	Sandy loam	Clay	Clay	Sandy loam	Sandy loam	Clay	Sandy loam	Sandy loam	Clay	Clay
Reference Bulk Density	1.7 g/cm³	1.23 g/cm³	1.23 g/cm³	1.7 g/cm³	1.56 g/cm³	1.27 g/cm³	1.7 g/cm³	1.7 g/cm³	1.27 g/cm³	1.23 g/cm³
Bulk Density	1.52 g/cm³	1.1 g/cm³	1.1 g/cm³	1.52 g/cm³	1.5 g/cm³	1.18 g/cm³	1.52 g/cm³	1.52 g/cm³	1.18 g/cm³	1.1 g/cm³
Organic Carbon	0.41 %	2.37 %	2.37 %	0.41 %	1.6 %	2.74 %	0.41 %	0.41 %	2.74 %	2.37 %
PH	6	6.8	6.8	6	6	6.4	6	6	6.4	6.8
Clay Cation Exchange Capacity	140 cmol kg⁻¹	27 cmol kg⁻¹	27 cmol kg⁻¹	140 cmol kg⁻¹	52 cmol kg⁻¹	21 cmol kg⁻¹	140 cmol kg⁻¹	140 cmol kg⁻¹	21 cmol kg⁻¹	27 cmol kg⁻¹
Soil Cation Exchange Capacity	14 cmol kg⁻¹	23 cmol kg⁻¹	23 cmol kg⁻¹	14 cmol kg⁻¹	11 cmol kg⁻¹	18 cmol kg⁻¹	14 cmol kg⁻¹	14 cmol kg⁻¹	18 cmol kg⁻¹	23 cmol kg⁻¹
Base Saturation	80 %	89 %	89 %	80 %	100 %	90 %	80 %	80 %	90 %	89 %
Total Exchangeable Bases	11.2 cmol kg⁻¹	20.5 cmol kg⁻¹	20.5 cmol kg⁻¹	11.2 cmol kg⁻¹	11 cmol kg⁻¹	16.2 cmol kg⁻¹	11.2 cmol kg⁻¹	11.2 cmol kg⁻¹	16.2 cmol kg⁻¹	20.5 cmol kg⁻¹
Calcium Carbonate	0 %	1 %	1 %	0 %	0 %	0.2 %	0 %	0 %	0.2 %	1 %
Calcium Sulphate	0 %	0.1 %	0.1 %	0 %	0 %	0.1 %	0 %	0 %	0.1 %	0.1 %
Exchangeable Sodium	2 %	1 %	1 %	2 %	1 %	1 %	2 %	2 %	1 %	1 %
Electrical Conductivity	0 dS m-1	0.1 dS m-1	0.1 dS m-1	0 dS m-1	0 dS m-1	0.1 dS m-1	0 dS m-1	0 dS m-1	0.1 dS m-1	0.1 dS m-1
Subsoil Properties
Gravel	19 %	4 %	4 %	19 %		4 %	19 %	19 %	4 %	4 %
Sand	73 %	23 %	23 %	73 %		21 %	73 %	73 %	21 %	23 %
Silt	23 %	20 %	20 %	23 %		29 %	23 %	23 %	29 %	20 %
Clay	4 %	57 %	57 %	4 %		50 %	4 %	4 %	50 %	57 %
USDA Texture	Sandy loam	Clay	Clay	Sandy loam		Clay	Sandy loam	Sandy loam	Clay	Clay
Reference Bulk Density	1.7 g/cm³	1.22 g/cm³	1.22 g/cm³	1.7 g/cm³		1.23 g/cm³	1.7 g/cm³	1.7 g/cm³	1.23 g/cm³	1.22 g/cm³
Bulk Density	1.53 g/cm³	1.1 g/cm³	1.1 g/cm³	1.53 g/cm³		1.12 g/cm³	1.53 g/cm³	1.53 g/cm³	1.12 g/cm³	1.1 g/cm³
Organic Carbon	0.15 %	0.84 %	0.84 %	0.15 %		1.42 %	0.15 %	0.15 %	1.42 %	0.84 %
PH	6.4	6.9	6.9	6.4		6.2	6.4	6.4	6.2	6.9
Clay Cation Exchange Capacity	140 cmol kg⁻¹	37 cmol kg⁻¹	37 cmol kg⁻¹	140 cmol kg⁻¹		20 cmol kg⁻¹	140 cmol kg⁻¹	140 cmol kg⁻¹	20 cmol kg⁻¹	37 cmol kg⁻¹
Soil Cation Exchange Capacity	13 cmol kg⁻¹	24 cmol kg⁻¹	24 cmol kg⁻¹	13 cmol kg⁻¹		15 cmol kg⁻¹	13 cmol kg⁻¹	13 cmol kg⁻¹	15 cmol kg⁻¹	24 cmol kg⁻¹
Base Saturation	85 %	94 %	94 %	85 %		94 %	85 %	85 %	94 %	94 %
Total Exchangeable Bases	11.1 cmol kg⁻¹	22.6 cmol kg⁻¹	22.6 cmol kg⁻¹	11.1 cmol kg⁻¹		14.1 cmol kg⁻¹	11.1 cmol kg⁻¹	11.1 cmol kg⁻¹	14.1 cmol kg⁻¹	22.6 cmol kg⁻¹
Calcium Carbonate	0.2 %	1 %	1 %	0.2 %		0.1 %	0.2 %	0.2 %	0.1 %	1 %
Calcium Sulphate	0.1 %	0.1 %	0.1 %	0.1 %		0 %	0.1 %	0.1 %	0 %	0.1 %
Exchangeable Sodium	3 %	1 %	1 %	3 %		1 %	3 %	3 %	1 %	1 %
Electrical Conductivity	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1	0.1 dS m-1		0 dS m-1	0.1 dS m-1	0.1 dS m-1	0 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