Soils of Barbués and Torres de Barbués, Ebro Basin, NE Spain

Figures & data

Figure 1. Location of the two municipalities studied and main irrigation elements in the area.

Figure 2. Geomorphic units mapped in the study area with the soil profiles used for defining Soil Series, and the auger sampling sites for the specific soil salinity survey.

Table 1. Characteristics of the main geomorphic units of the study area.

Unit	Area extent		Definition	Materials
	ha	%
Platform	969	29.5	A level or nearly level surface (Bates & Jackson, 1990)	Any material, including limestones, sandstones and gravels
Slope	1025	31.2	Inclined surface (Bates & Jackson, 1990)	Colluvial and alluvial sediments, frequently saliferous
Terrace	56	1.7	Planar surface that remains after the river, which formed it, incised its former valley floor (Goudie, 2004)	Sandy and silty sediments of the Flumen River
Bottom	1233	37.6	Floor of the valleys and depressions (Bates & Jackson, 1990)	Fine and often saliferous materials

Figure 3. (a) LiDAR-derived DTM of the study area. (b) The elevation of the four geomorphic units, medians and their confidence interval (in red), interquartile range boxes, means and their line connection. (c) A–B cross profile with the main geomorphic units labeled. (color online)

Figure 4. Soil map of Barbués and Torres de Barbués and an enlarged sample area. The scale of the map allows identification of individual plots and the soil attributed to them. The labels in the sample area are explained in Table 1.

Table 2. Soil Series in the soil map of Barbués and Torres de Barbués, with their classification, extent, and typic pedon (Nogués, 2002).

Series	Classification following Soil Survey Staff (1999)	Extent (ha)	Typic pedon
Barbués	Coarse-loamy, mixed semiactive, thermic, Typic Calcixerept	5	BA18
Cadillón	Sandy-skeletal, carbonatic, thermic, shallow Calcic Petrocalcid	< 1	BA03
Callén	Fine-loamy, mixed, semiactive, calcareous, thermic Typic Xerofluvent	208	BA01
Chacilla	Sandy, mixed, thermic Typic Xerofluvent	20	BA17
Cordel	Fine-loamy, mixed, semiactive, calcareous, thermic Typic Xerofluvent	371	BA06
Corraletes	Fine-loamy, mixed, subactive, calcareous, thermic Haplic Xerarent	19	BA10
Escalerón	Coarse-loamy, mixed, subactive, calcareous, thermic Typic Xerorthent	250	BA22
Escubizal	Fine-loamy, mixed, subactive, thermic Typic Calcixerept	5	BA29
Francal	Fine-silty, mixed, subactive, calcareous, thermic Oxyaquic Xerofluvent	137	BA40
Gor	Coarse-loamy, mixed, subactive, thermic Typic Calcixerept	15	BA12
Lacobeta	Loamy-skeletal, mixed, semiactive, thermic Xeric Haplocalcid	55	BA27
Lalera	Coarse-loamy, mixed, active, calcareous, thermic Oxyaquic Xerofluvent	59	BA32
Osplanos	Fine, mixed, subactive, calcareous, thermic Typic Xerofluvent	162	BA39
Molinar	Sandy-skeletal, carbonatic, thermic, Typic Xerofluvent	41	BA16
Montestruc	Loamy-skeletal over clayey, mixed, subactive, thermic Typic Calcixerept	99	BA07
Piarena	Loamy, mixed, semiactive, calcareous, thermic Lithic Xeric Torriorthent	388	BA19
Planteros	Sandy-skeletal, mixed, thermic Petrocalcic Calcixerept	134	BA11
Puyalón	Loamy, mixed, subactive, calcareous, thermic Lithic Xerorthent	12	BA35
Rompida	Fine-silty, mixed, subactive, calcareous, thermic Haplic Xerarent	77	BA09
Salagones	Clayey, mixed, subactive, calcareous, thermic, shallow Oxyaquic Xerorthent	241	BA05
Sangarrén	Fine-loamy, mixed, subactive, thermic Typic Calcixerept	5	BA21
Santana	Fine-loamy, mixed, semiactive, thermic Typic Calcixerept	1	BA31
Torraza	Loamy-skeletal, mixed, active, thermic, shallow Calcic Petrocalcid	136	BA15
Torres	Loamy-skeletal, mixed, semiactive, thermic Typic Calcixerept	332	BA33
Treshuegas	Fine, mixed, subactive, calcareous, thermic Typic Xerorthent	111	BA02
Valdepinillos	Sandy, mixed, thermic Typic Calcixerept	5	BA14
Valfonda	Fine, mixed, subactive, thermic Gypsic Haploxerept	290	BA25

Table 3. Map units (consociations in italic, complexes in bold) appearing in the sample area of Figure 4, and main characteristics of the corresponding Soil Series.

Map unit	Series	Depth	Drainage	Texture	Coarse fragments, %	AWHC1.5, mm	Geoforms	Sequence of horizons
5b, 5g	Cordel	Very deep	Good	Medium to moderately fine	No	Very high, 260 mm	Bottoms, gentle slopes (2–5%), and fluvial terraces	Ap Bw1 Bw2
Kb	Corraletes	Deep or moderately deep	Moderately good	Medium or coarse	Very frequent, 16–35%, decreasing with depth	Low, 140 mm	Slopes (6–10%) starting at the platforms topped by coarse sediments	Ap Bwk C (weathered sandstone) R (sandstone)
6a, 6b, 6c, Qa	Escalerón	Moderately deep	Good	Moderately coarse	Few, 1–5%	Low, 100 mm	Gentle slopes (2–5%), and occasionally (6-15%)	Ap Bw R (sandstone)
7d, Ga	Francal	Very deep	Imperfect	Moderately fine	No	Very high, 280 mm	Bottoms with very gentle slope (< 2%)	Ap Bw1 Bw2
Ma, Ra	Lacobeta	Moderatey deep	Good	Moderately coarse	Abundant, 36–70%	Very low, 40 mm	Residual platforms with gentle slope (2–5%), topped by shallow deposits of gravels	Ap/ Bk (gravels) R or Cr (sandstone or lutite)
Ga, Kb, Ma, Sa	Piarena	Shallow	Good	Moderately coarse or coarse	Very few, < 1%	Very low, 40 mm	Structural platforms with slope from very gentle (< 2%) or gentle (2–5%)	Ap R (sandstone)
Qa, Ra, Sa	Salagones	Moderatey deep or shallow	Moderate or imperfect	Moderately fine	No	Low, 70 mm	Slopes from gentle to steep, also on platforms and water divides of gentle slope	Ap Cr (lutite)

Note: AWHC1.5, available water holding capacity up to 1.5 m.

Bates, R. L., & Jackson, J. A. (1990). Glossary of geology (3rd ed.). Virginia: American Geological Institute. p. 788.

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Goudie, A. S. (2004). Encyclopedia of geomorphology. New York, NY: Routledge Ltd, Taylor & Francis. p. 1155.

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Nogués, J. (2002). Mapa de suelos (E 1/25000) de Barbués y Torres de Barbués [Soil map at 1:25,000 scale of Barbués and Torres]. Zaragoza: Consejo de Protección de la Naturaleza de Aragón. Retrieved October 22, 2016, from http://hdl.handle.net/10532/3458

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Soil Survey Staff. (1999). Soil taxonomy (2nd ed.). Washington, DC: Natural Resources Conservation Service, Handbook 436. US Department of Agriculture. p. 869.

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