World Species : Protected Area : El Pinacate y Gran Desierto de Altar

El Pinacate y Gran Desierto de Altar

Location:	Sonora, Mexico
IUCN Category:	VI
Area:	1,770,619 acres (716,544 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

Sonoran desert

Soils

— Protected Area Boundary

	A		B				C		D				E		F

Share	70 %	30 %	30 %	30 %	20 %	20 %	60 %	40 %	50 %	20 %	20 %	10 %	65 %	35 %	60 %	40 %
Soil Type	Luvic Yermosols	Calcaric Regosols	Luvic Yermosols	Luvic Yermosols	Calcic Yermosols	Calcaric Regosols	Haplic Calcisols	Calcaric Regosols	Calcaric Regosols	Haplic Calcisols	Calcaric Regosols	Haplic Calcisols	Lithic Leptosols	Haplic Calcisols	Calcaric Regosols	Haplic Calcisols
Topsoil Texture	Medium	Medium	Coarse	Medium	Medium	Medium	Medium	Medium	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	100 cm	100 cm	100 cm	100 cm	10 cm	100 cm	100 cm	100 cm
Drainage	Moderately well	Moderately well	Moderately well	Moderately well	Moderately well	Moderately well	Moderately well	Moderately well	Moderately well	Moderately well	Moderately well	Moderately well	Imperfectly	Moderately well	Moderately well	Moderately well
Available Water Capacity	150 m	150 m	150 m	150 m	150 m	150 m	150 m	150 m	150 m	150 m	150 m	150 m	15 mm	150 m	150 m	150 m
Topsoil Properties
Gravel	20 %	17 %	4 %	20 %	20 %	17 %	10 %	9 %	9 %	10 %	9 %	10 %	28 %	10 %	9 %	10 %
Sand	50 %	43 %	79 %	50 %	39 %	43 %	47 %	51 %	51 %	47 %	51 %	47 %	70 %	55 %	51 %	47 %
Silt	29 %	35 %	10 %	29 %	37 %	35 %	25 %	41 %	41 %	25 %	41 %	25 %	20 %	27 %	41 %	25 %
Clay	21 %	22 %	11 %	21 %	24 %	22 %	28 %	8 %	8 %	28 %	8 %	28 %	10 %	18 %	8 %	28 %
USDA Texture	Loam	Loam	Sandy loam	Loam	Loam	Loam	Sandy clay loam	Loam	Loam	Sandy clay loam	Loam	Sandy clay loam	Sandy loam	Sandy loam	Loam	Sandy clay loam
Reference Bulk Density	1.42 g/cm³	1.4 g/cm³	1.57 g/cm³	1.42 g/cm³	1.38 g/cm³	1.4 g/cm³	1.37 g/cm³	1.56 g/cm³	1.56 g/cm³	1.37 g/cm³	1.56 g/cm³	1.37 g/cm³	1.56 g/cm³	1.45 g/cm³	1.56 g/cm³	1.37 g/cm³
Bulk Density	1.5 g/cm³	1.4 g/cm³	1.66 g/cm³	1.5 g/cm³	1.46 g/cm³	1.4 g/cm³	1.19 g/cm³	1.5 g/cm³	1.5 g/cm³	1.19 g/cm³	1.5 g/cm³	1.19 g/cm³	1.5 g/cm³	1.29 g/cm³	1.5 g/cm³	1.19 g/cm³
Organic Carbon	0.4 %	0.77 %	0.34 %	0.4 %	0.37 %	0.77 %	0.14 %	8.03 %	8.03 %	0.14 %	8.03 %	0.14 %	1.6 %	0.3 %	8.03 %	0.14 %
PH	7.3	8	8.2	7.3	8.1	8	7.8	8	8	7.8	8	7.8	6	7.5	8	7.8
Clay Cation Exchange Capacity	47 cmol kg⁻¹	40 cmol kg⁻¹	52 cmol kg⁻¹	47 cmol kg⁻¹	45 cmol kg⁻¹	40 cmol kg⁻¹	74 cmol kg⁻¹			74 cmol kg⁻¹		74 cmol kg⁻¹	52 cmol kg⁻¹	114 cmol kg⁻¹		74 cmol kg⁻¹
Soil Cation Exchange Capacity	7 cmol kg⁻¹	17 cmol kg⁻¹	8 cmol kg⁻¹	7 cmol kg⁻¹	15 cmol kg⁻¹	17 cmol kg⁻¹	21 cmol kg⁻¹	18 cmol kg⁻¹	18 cmol kg⁻¹	21 cmol kg⁻¹	18 cmol kg⁻¹	21 cmol kg⁻¹	11 cmol kg⁻¹	29 cmol kg⁻¹	18 cmol kg⁻¹	21 cmol kg⁻¹
Base Saturation	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %
Total Exchangeable Bases	14 cmol kg⁻¹	31.1 cmol kg⁻¹	6.8 cmol kg⁻¹	14 cmol kg⁻¹	24 cmol kg⁻¹	31.1 cmol kg⁻¹	21 cmol kg⁻¹	18 cmol kg⁻¹	18 cmol kg⁻¹	21 cmol kg⁻¹	18 cmol kg⁻¹	21 cmol kg⁻¹	11 cmol kg⁻¹	29 cmol kg⁻¹	18 cmol kg⁻¹	21 cmol kg⁻¹
Calcium Carbonate	0.5 %	15 %	2.2 %	0.5 %	26 %	15 %	11.7 %	17.9 %	17.9 %	11.7 %	17.9 %	11.7 %	0 %	11.7 %	17.9 %	11.7 %
Calcium Sulphate	0.1 %	0 %	0.1 %	0.1 %	0.1 %	0 %	0.1 %	0.3 %	0.3 %	0.1 %	0.3 %	0.1 %	0 %	0.1 %	0.3 %	0.1 %
Exchangeable Sodium	6 %	2 %	5 %	6 %	8 %	2 %	3 %	2 %	2 %	3 %	2 %	3 %	1 %	3 %	2 %	3 %
Electrical Conductivity	0.1 dS m-1	0.3 dS m-1	0.2 dS m-1	0.1 dS m-1	2.4 dS m-1	0.3 dS m-1	0.3 dS m-1	0.2 dS m-1	0.2 dS m-1	0.3 dS m-1	0.2 dS m-1	0.3 dS m-1	0 dS m-1	0.3 dS m-1	0.2 dS m-1	0.3 dS m-1
Subsoil Properties
Gravel	27 %	18 %	5 %	27 %	41 %	18 %	10 %	5 %	5 %	10 %	5 %	10 %		6 %	5 %	10 %
Sand	44 %	38 %	65 %	44 %	30 %	38 %	54 %	37 %	37 %	54 %	37 %	54 %		29 %	37 %	54 %
Silt	28 %	36 %	14 %	28 %	42 %	36 %	23 %	58 %	58 %	23 %	58 %	23 %		15 %	58 %	23 %
Clay	28 %	26 %	21 %	28 %	28 %	26 %	23 %	5 %	5 %	23 %	5 %	23 %		56 %	5 %	23 %
USDA Texture	Clay loam	Loam	Sandy clay loam	Clay loam	Clay loam	Loam	Sandy clay loam	Silt loam	Silt loam	Sandy clay loam	Silt loam	Sandy clay loam		Clay	Silt loam	Sandy clay loam
Reference Bulk Density	1.37 g/cm³	1.36 g/cm³	1.45 g/cm³	1.37 g/cm³	1.34 g/cm³	1.36 g/cm³	1.41 g/cm³	1.6 g/cm³	1.6 g/cm³	1.41 g/cm³	1.6 g/cm³	1.41 g/cm³		1.23 g/cm³	1.6 g/cm³	1.41 g/cm³
Bulk Density	1.47 g/cm³	1.52 g/cm³	1.63 g/cm³	1.47 g/cm³	1.3 g/cm³	1.52 g/cm³	1.19 g/cm³	1.47 g/cm³	1.47 g/cm³	1.19 g/cm³	1.47 g/cm³	1.19 g/cm³		1.23 g/cm³	1.47 g/cm³	1.19 g/cm³
Organic Carbon	0.28 %	0.53 %	0.24 %	0.28 %	0.29 %	0.53 %	0.1 %	3.45 %	3.45 %	0.1 %	3.45 %	0.1 %		0.23 %	3.45 %	0.1 %
PH	7.3	8.1	8.3	7.3	8.1	8.1	7.9	8	8	7.9	8	7.9		7.2	8	7.9
Clay Cation Exchange Capacity	58 cmol kg⁻¹	50 cmol kg⁻¹	45 cmol kg⁻¹	58 cmol kg⁻¹	35 cmol kg⁻¹	50 cmol kg⁻¹	75 cmol kg⁻¹			75 cmol kg⁻¹		75 cmol kg⁻¹		64 cmol kg⁻¹		75 cmol kg⁻¹
Soil Cation Exchange Capacity	11 cmol kg⁻¹	15 cmol kg⁻¹	9 cmol kg⁻¹	11 cmol kg⁻¹	11 cmol kg⁻¹	15 cmol kg⁻¹	18 cmol kg⁻¹	6 cmol kg⁻¹	6 cmol kg⁻¹	18 cmol kg⁻¹	6 cmol kg⁻¹	18 cmol kg⁻¹		26 cmol kg⁻¹	6 cmol kg⁻¹	18 cmol kg⁻¹
Base Saturation	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %	100 %		100 %	100 %	100 %
Total Exchangeable Bases	14.6 cmol kg⁻¹	41.1 cmol kg⁻¹	8.4 cmol kg⁻¹	14.6 cmol kg⁻¹	21.8 cmol kg⁻¹	41.1 cmol kg⁻¹	18 cmol kg⁻¹	6 cmol kg⁻¹	6 cmol kg⁻¹	18 cmol kg⁻¹	6 cmol kg⁻¹	18 cmol kg⁻¹		26 cmol kg⁻¹	6 cmol kg⁻¹	18 cmol kg⁻¹
Calcium Carbonate	3.8 %	15 %	11.4 %	3.8 %	35 %	15 %	16.9 %	14.1 %	14.1 %	16.9 %	14.1 %	16.9 %		6.7 %	14.1 %	16.9 %
Calcium Sulphate	0.7 %	0 %	0.9 %	0.7 %	0.7 %	0 %	0.1 %	0.2 %	0.2 %	0.1 %	0.2 %	0.1 %		0.1 %	0.2 %	0.1 %
Exchangeable Sodium	4 %	1 %	3 %	4 %	8 %	1 %	3 %	4 %	4 %	3 %	4 %	3 %		7 %	4 %	3 %
Electrical Conductivity	9.7 dS m-1	0.3 dS m-1	0.2 dS m-1	9.7 dS m-1	2.6 dS m-1	0.3 dS m-1	0.3 dS m-1	1.2 dS m-1	1.2 dS m-1	0.3 dS m-1	1.2 dS m-1	0.3 dS m-1		0.5 dS m-1	1.2 dS m-1	0.3 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