GREECE SOIL PROFILES

PROFILE EUR13 - GR
Santorini, Vlychada - 27.april 2001

Date of description: 27-04-2001 Authors: P. Buurman, O. Arnalds, F. Terribile, P. Quantin, Eduardo ?? and M. Mallucelli?? Location: Santorini, Vlychada Altitude: 80 m Co-ordinates: 36°21’10.1’’N ; 25°25’43,4’’E Map number and Co-ordinates: Classification: WRB (2001): Endocalcari-Tephric Regosol ST (1999): Ashy, mixed, calcareous, thermic Vitrandic Xeropsamment Soil Climate: Xeric soil moisture regime; Thermic soil temperature regime Topography:

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Landform: Volcanic sediment plain

Land element: Terrace (volcanic)

Position: Intermediate

Slope: 2% very gently sloping

Form:

Microtopography: Flat (LE)

Landuse/Vegetation: Abandoned.  >80% agricultural land, currently grassland.

Human influences: Great?

Parent material: Pumice.

Rock outcrops: 10%

Effective soil depth: 40 cm.

Erosion: Sheet and gully, moderate

Drainage Class: excessively drained

Internal drainage: never saturated.

External drainage: rapid runoff

Moisture conditions: Dry, never saturated

 Note: Species include (in order) Chrysanthemum coronanium, Thymus, Echium plantagineum, Geranium, Scolymus hispanicus, and Lolium.

SOIL HORIZON DESCRIPTION:

Fines seem to be washed out of the upper part of the A-C horizons.

Ah1:   0-7 cm; Brown (10YR 4/3) sandy loam, very weak coarse granular structure, very friable, many fine and very fine roots, slightly calcareous, 15% 0.2-2 cm gravel, made of basalt (70%) and pumice (30%), no rock fragment weathering, clear smooth boundary.

Ah2:   7-40 cm; Dark greyish brown (10YR 4/2) loamy sand, structureless, many fine and very fine roots, slightly calcareous, 30% 0.2-2 cm gravel, made of basalt (70%) and pumice (30%), no rock fragment weathering, clear smooth boundary.

C1:     40-68 cm; Yellowish brown (10YR 5/4) sandy loam, structureless, few very fine roots, slightly calcareous, 10% 0.2-2 cm gravel, made of basalt (70%) and pumice (30%), no rock fragment weathering, abrupt wavy boundary.

C2:     68-100 +cm; Brown (10YR 5/3) sandy loam, weak fine and medium subangular blocky structure, very friable, no roots, slightly calcareous, 30% 0.2-2 cm gravel, made of basalt (70%) and pumice (30%), no rock fragment weathering, original Minoan IV volcanic materials.

WRB (2001): ochric horizon (0-40 cm); calcaric soil material (40->100 cm); no Arenosol because of >35% coarse fragments between 0 and 40 cm:

Endocalcari-Tephric Regosol

 ST (1999): ochric epipedon (0-40 cm); Psamment because texture is assumed to be loamy fine sand or coarser in the particle-size control section (very fine sand fraction not determined, but it is unlikely that there is 50% or more very fine sand):

Ashy, mixed, calcareous, thermic Vitrandic Xeropsamment