PTRDB Attributes

Attributes
AGLIM1NNI    AGLIM2NNI    ALT    ATC    AWC_SUB    AWC_TOP   
BS_SUB    BS_TOP    CEC_SUB    CEC_TOP    CRUSTING    DGH   
DIFF    DIMP    DR    EAWC_SUB    EAWC_TOP    ERODIBILITY   
HG    MIN    MIN_SUB    MIN_TOP    OC_TOP    PD_SUB   
PD_TOP    PEAT    PHYS_CHIM    PMH    STR_SUB    STR_TOP   
TD    TEXT    TEXT_CRUST    TEXT_EROD    USE    VS   

 


AGLIM1NNI = Dominant limitation to agricultural use (without no information). 0 = No information 1 = No limitation to agricultural use 2 = Gravelly (over 35% gravels diameter < 7.5 cm) 3 = Stony (presence of stones diameter > 7.5 cm, impracticable mechanization) 4 = Lithic (coherent and hard rock within 50 cm) 5 = Concretionary (over 35% concretions diameter < 7.5 cm near the surface) 6 = Petrocalcic (cemented or indurated calcic horizon within 100 cm) 7 = Saline (electric conductivity > 4 mS.cm-1 within 100 cm) 8 = Sodic (Na/T > 6% within 100 cm) 9 = Glaciers and snow-caps 10 = Soils disturbed by man 20 = Fragic 21 = Drained 22 = Quasi permanently flooded 30 = Eroded phase, erosion 31 = Phreatic phase --------------------------------------------------------------------------- AGLIM2NNI = Secondary limitation to agricultural use (without no information). 0 = No information 1 = No limitation to agricultural use 2 = Gravelly (over 35% gravels diameter < 7.5 cm) 3 = Stony (presence of stones diameter > 7.5 cm, impracticable mechanization) 4 = Lithic (coherent and hard rock within 50 cm) 5 = Concretionary (over 35% concretions diameter < 7.5 cm near the surface) 6 = Petrocalcic (cemented or indurated calcic horizon within 100 cm) 7 = Saline (electric conductivity > 4 mS.cm-1 within 100 cm) 8 = Sodic (Na/T > 6% within 100 cm) 9 = Glaciers and snow-caps 10 = Soils disturbed by man 20 = Fragic 21 = Drained 22 = Quasi permanently flooded 30 = Eroded phase, erosion 31 = Phreatic phase --------------------------------------------------------------------------- ALT = ELEVATION # = No information L = Lowlands & intermediate U = Uplands & mountains --------------------------------------------------------------------------- ATC Regrouped accumulated mean annual temperature class (ATC) (source: JRC-MARS) H: High (> 3000°C) M: Medium (1800-3000°C) L: Low (< 1800°C) --------------------------------------------------------------------------- AWC_SUB = Subsoil available water capacity. VL = Very low ( ~ 0 mm/m) L = Low ( < 100 mm/m) M = Medium (100 - 140 mm/m) H = High (140 - 190 mm/m) VH = Very high ( > 190 mm/m) # = No data or not applicable --------------------------------------------------------------------------- AWC_TOP = Topsoil available water capacity. L = Low ( < 100 mm/m) M = Medium (100 - 140 mm/m) H = High (140 - 190 mm/m) VH = Very high ( > 190 mm/m) # = No data or not applicable --------------------------------------------------------------------------- BS_SUB = Base saturation of the subsoil. H = High ( > 50 %) L = Low ( < 50 %) --------------------------------------------------------------------------- BS_TOP = Base saturation of the topsoil. H = High ( > 75 %) M = Medium (50 - 75 %) L = Low ( < 50 %) --------------------------------------------------------------------------- CEC_SUB = Subsoil cation exchange capacity. H = High ( > 40 cmol(+)/kg) M = Medium (15-40 cmol(+)/kg) L = Low ( < 15 cmol(+)/kg) --------------------------------------------------------------------------- CEC_TOP = Topsoil cation exchange capacity. H = High ( > 40 cmol(+)/kg) M = Medium (15-40 cmol(+)/kg) L = Low ( < 15 cmol(+)/kg) --------------------------------------------------------------------------- CRUSTING = Soil crusting class. 1 = Very weak 2 = Weak 3 = Moderate 4 = Strong 5 = Very strong --------------------------------------------------------------------------- DGH = Depth to a gleyed horizon. S = Shallow ( < 40 cm) M = Moderate (40 - 80 cm) D = Deep (80 - 120 cm) V = Very deep ( > 120 cm) --------------------------------------------------------------------------- DIFF = Soil profile differentiation. H = High differentiation L = Low differentiation O = No differentiation --------------------------------------------------------------------------- DIMP = Depth to an impermeable layer. S = Shallow ( < 80 cm) D = Deep ( > 80 cm) --------------------------------------------------------------------------- DR = Depth to rock. S = Shallow ( < 40 cm) M = Moderate (40 - 80 cm) D = Deep (80 - 120 cm) V = Very deep ( > 120 cm) --------------------------------------------------------------------------- EAWC_SUB = Subsoil easily available water capacity. VL = Very low ( ~ 0 mm/m) L = Low ( < 100 mm/m) M = Medium (100 - 140 mm/m) H = High (140 - 190 mm/m) VH = Very high ( > 190 mm/m) # = No data or not applicable --------------------------------------------------------------------------- EAWC_TOP = Topsoil easily available water capacity. L = Low ( < 100 mm/m) M = Medium (100 - 140 mm/m) H = High (140 - 190 mm/m) VH = Very high ( > 190 mm/m) # = No data or not applicable --------------------------------------------------------------------------- ERODIBILITY = Soil erodibility class. 1 = Very weak 2 = Weak 3 = Moderate 4 = Strong 5 = Very strong --------------------------------------------------------------------------- HG = Hydrogeological class. 1R = 1R 1C = 1C 1S = 1S 1L = 1L 1H = 1H 1M = 1M 2 = 2 3 = 3 4W = 4W 4D = 4D --------------------------------------------------------------------------- MIN = Profile mineralogy. C = Chemical or Geochemical M = Mechanical or Physical MC = Chemical and Mechanical ND = No differentiation --------------------------------------------------------------------------- MIN_SUB = Subsoil mineralogy. KQ = 1/1 Minerals + Quartz KX = 1/1 Min. + Oxy. & Hydroxy. MK = 2/1 & 1/1 Minerals M = 2/1 & 2/1/1 non swel. Min. MS = Swel. & non swel. 2/1 Min. S = Swelling 2/1 Minerals TV = Vitric Minerals TO = Andic Minerals NA = Not applicable --------------------------------------------------------------------------- MIN_TOP = Topsoil mineralogy. KQ = 1/1 Minerals + Quartz KX = 1/1 Min. + Oxy. & Hydroxy. MK = 2/1 & 1/1 Minerals M = 2/1 & 2/1/1 non swel. Min. MS = Swel. & non swel. 2/1 Min. S = Swelling 2/1 Minerals TV = Vitric Minerals TO = Andic Minerals NA = Not applicable --------------------------------------------------------------------------- OC_TOP = Topsoil organic carbon content. H = High ( > 6 %) M = Medium (2 - 6 %) L = Low (1 - 2 %) V = Very low ( < 1 %) --------------------------------------------------------------------------- PD_SUB = Subsoil packing density. L = Low M = Medium H = High --------------------------------------------------------------------------- PD_TOP = Topsoil packing density. L = Low M = Medium H = High --------------------------------------------------------------------------- PEAT = Peat. N = No Y = Yes --------------------------------------------------------------------------- PHYS-CHIM = Physico-chemical factor of soil crusting & erodibility. 1 = Very favourable 2 = Favourable 3 = Medium 4 = Unfavourable 5 = Very unfavourable --------------------------------------------------------------------------- PMH = Parent material hydrogeological type. R = Porous - Stor. ~ Perm. + C = Porous 2 Stor. ~ Perm. + S = Porous 1 Stor. + Perm. + L = Stor. - Perm. - H = Hard. Stor. -- Perm. -- M = Soft. Stor. -- Perm. -- # = No information

Additional:

R = [Porous - Stor. ~ Perm. +] Hard, non- or weakly porous limestone (Karstic), sandstone and crystalline rocks

       with moderate storage capacity and high permeability because of well-fissured/jointed systems

 C = [Porous 2 Stor. ~ Perm. +] Chalk and soft limestone with bi-modal porosity, microporous

       with moderate storage capacity but well developed fissure systems giving relatively high permeability.

 S = [Porous 1 Stor. + Perm. +] Weakly consolidated sandstone and unconsolidated sand and gravel

       with unimodal porosity; macroporous with large storage capcity and relatively high permability

 L = [Stor. - Perm. -] Weakly or unconsolidated microporous substrate with a low permability and low storage capacity

 H = [Hard. Stor. -- Perm. --] Hard massive rock with negligible permeability and negligible storage capacity

 M = [Soft. Stor. -- Perm. --] Soft massive substrates with negligible permeability and negligible storage capacity

 # = No information

Source:

King, D., Jamagne, M.., Daroussin, J., Vanmechelen, L., Van Ranst, E., Hollis, J.M., Thomasson, A.J. and Jones, R.J.A., A geographical knowledge database on soil properties for environmental studies. Final Report of EC Contract No. 3392004 November 1994 DGXI, Brussels.


		---------------------------------------------------------------------------
		STR_SUB = Subsoil structure.
		   G = Good
		   N = Normal
		   P = Poor
		   O = Peaty subsoil
		---------------------------------------------------------------------------
		STR_TOP = Topsoil structure.
		   G = Good
		   N = Normal
		   P = Poor
		   H = Humic or Peaty topsoil
		---------------------------------------------------------------------------
		TD = Rule infered subsoil texture.
		   0 = No information
		   9 = No texture (histosols, ...)
		   1 = Coarse (clay < 18 % and sand > 65 %)
		   2 = Medium (18% < clay < 35% and sand > 15%, or clay < 18% and 15% < sand < 65%)
		   3 = Medium fine (clay < 35 % and sand < 15 %)
		   4 = Fine (35 % < clay < 60 %)
		   5 = Very fine (clay > 60 %)

		---------------------------------------------------------------------------
		TEXT = Dominant surface textural class (infered).
		   1 = Coarse (clay < 18 % and sand > 65 %)
		   2 = Medium (18% < clay < 35% and sand > 15%,\or clay < 18% and 15% < sand < 65%)
		   3 = Medium fine (clay < 35 % and sand < 15 %)
		   4 = Fine (35 % < clay < 60 %)
		   5 = Very fine (clay > 60 %)
		   7 = No texture (because of rock outcrop)
		   8 = No texture (because of organic layer)
		   6 = No texture (other cases)
		   0 = No information
		---------------------------------------------------------------------------
		TEXT-CRUST = Textural factor of soil crusting.
		   1 = Very favourable
		   2 = Favourable
		   3 = Medium
		   4 = Unfavourable
		   5 = Very unfavourable
		---------------------------------------------------------------------------
		TEXT-EROD = Textural factor of soil erodibility.
		   1 = Very favourable
		   2 = Favourable
		   3 = Medium
		   4 = Unfavourable
		   5 = Very unfavourable
		---------------------------------------------------------------------------
			USE = Regrouped land use class.
		   HG = Halophile Grassland
		   MG = Managed Grassland
		   SN = Semi-natural
		   C = Cultivated
		   # = No information
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			VS = Volume of stones.
		   00 =  0 % stones
		   10 = 10 % stones
		   15 = 15 % stones
		   20 = 20 % stones
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