This ontology represents the laboratory analysis procedures in GLOSIS, an extension to the Global Soil Information System (GloSIS) v1.0, edited by Tomas Reznik and Katharina Schleidt
This ontology is distributed under Creative Commons Attribution 4.0 License - http://creativecommons.org/licenses/by/4.0
Data model for the Global Soil Information System (GloSIS) v1.0, edited by Tomas Reznik and Katharina Schleidt and Africa Soil Profile Database
GLOSIS Procedures
This module contains the code lists identifying laboratory processes employed to assess physio-chemical soil properties.
Code list for acidityExchangeable analysis procedures - codelist scheme
This code list provides analysis procedures for acidityExchangeable.
Code list for availableWaterHoldingCapacity analysis procedures - codelist scheme
This code list provides analysis procedures for availableWaterHoldingCapacity.
Code list for baseSaturation analysis procedures - codelist scheme
This code list provides analysis procedures for baseSaturation.
Code list for bulkDensityFineEarth analysis procedures - codelist scheme
This code list provides analysis procedures for bulkDensityFineEarth.
Code list for bulkDensityWholeSoil analysis procedures - codelist scheme
This code list provides analysis procedures for bulkDensityWholeSoil.
Code list for carbonInorganic analysis procedures - codelist scheme
This code list provides analysis procedures for carbonInorganic.
Code list for carbonOrganic analysis procedures - codelist scheme
This code list provides analysis procedures for carbonOrganic.
Code list for carbonTotal analysis procedures - codelist scheme
This code list provides analysis procedures for carbonTotal.
Code list for cationExchangeCapacitySoil analysis procedures - codelist scheme
This code list provides analysis procedures for cationExchangeCapacitySoil.
Code list for coarseFragments analysis procedures - codelist scheme
This code list provides analysis procedures for coarseFragments.
Code list for effectiveCec analysis procedures - codelist scheme
This code list provides analysis procedures for effectiveCec.
Code list for electricalConductivity analysis procedures - codelist scheme
This code list provides analysis procedures for electricalConductivity.
Code list for exchangeableBases analysis procedures - codelist scheme
This code list provides analysis procedures for exchangeableBases.
Code list for extractableElements analysis procedures - codelist scheme
This code list provides analysis procedures for extractableElements.
Code list for gypsum analysis procedures - codelist scheme
This code list provides analysis procedures for gypsum.
Code list for hydraulicConductivity analysis procedures - codelist scheme
This code list provides analysis procedures for hydraulicConductivity.
Code list for moistureContent analysis procedures - codelist scheme
This code list provides analysis procedures for moistureContent.
Code list for nitrogenTotal analysis procedures - codelist scheme
This code list provides analysis procedures for nitrogenTotal.
Code list for organicMatter analysis procedures - codelist scheme
This code list provides analysis procedures for organicMatter.
Code list for pH analysis procedures - codelist scheme
This code list provides analysis procedures for pH.
Code list for pSA analysis procedures - codelist scheme
This code list provides analysis procedures for pSA.
Code list for phosphorusRetention analysis procedures - codelist scheme
This code list provides analysis procedures for phosphorusRetention.
Code list for porosity analysis procedures - codelist scheme
This code list provides analysis procedures for porosity.
Code list for solubleSalts analysis procedures - codelist scheme
This code list provides analysis procedures for solubleSalts.
Code list for textureSum analysis procedures - codelist scheme
This code list provides analysis procedures for textureSum.
Code list for totalCarbonateEquivalent analysis procedures - codelist scheme
This code list provides analysis procedures for totalCarbonateEquivalent.
Code list for totalElements analysis procedures - codelist scheme
This code list provides analysis procedures for totalElements.
Procedures for AcidityExchangeable - codelist class
This code list provides analysis procedures for AcidityExchangeable.
Procedures for AvailableWaterHoldingCapacity - codelist class
This code list provides analysis procedures for AvailableWaterHoldingCapacity.
Procedures for BaseSaturation - codelist class
This code list provides analysis procedures for BaseSaturation.
Procedures for BulkDensityFineEarth - codelist class
This code list provides analysis procedures for BulkDensityFineEarth.
Procedures for BulkDensityWholeSoil - codelist class
This code list provides analysis procedures for BulkDensityWholeSoil.
Procedures for CarbonInorganic - codelist class
This code list provides analysis procedures for CarbonInorganic.
Procedures for CarbonOrganic - codelist class
This code list provides analysis procedures for CarbonOrganic.
Procedures for CarbonTotal - codelist class
This code list provides analysis procedures for CarbonTotal.
Procedures for CationExchangeCapacitySoil - codelist class
This code list provides analysis procedures for CationExchangeCapacitySoil.
Procedures for CoarseFragments - codelist class
This code list provides analysis procedures for CoarseFragments.
Procedures for EffectiveCec - codelist class
This code list provides analysis procedures for EffectiveCec.
Procedures for ElectricalConductivity - codelist class
This code list provides analysis procedures for ElectricalConductivity.
Procedures for ExchangeableBases - codelist class
This code list provides analysis procedures for ExchangeableBases.
Procedures for ExtractableElements - codelist class
This code list provides analysis procedures for ExtractableElements.
Procedures for Gypsum - codelist class
This code list provides analysis procedures for Gypsum.
Procedures for HydraulicConductivity - codelist class
This code list provides analysis procedures for HydraulicConductivity.
Procedures for MoistureContent - codelist class
This code list provides analysis procedures for MoistureContent.
Procedures for NitrogenTotal - codelist class
This code list provides analysis procedures for NitrogenTotal.
Procedures for OrganicMatter - codelist class
This code list provides analysis procedures for OrganicMatter.
Procedures for PH - codelist class
This code list provides analysis procedures for PH.
Procedures for PSA - codelist class
This code list provides analysis procedures for PSA.
Procedures for PhosphorusRetention - codelist class
This code list provides analysis procedures for PhosphorusRetention.
Procedures for Porosity - codelist class
This code list provides analysis procedures for Porosity.
Procedures for SolubleSalts - codelist class
This code list provides analysis procedures for SolubleSalts.
Procedures for TextureSum - codelist class
This code list provides analysis procedures for TextureSum.
Procedures for TotalCarbonateEquivalent - codelist class
This code list provides analysis procedures for TotalCarbonateEquivalent.
Procedures for TotalElements - codelist class
This code list provides analysis procedures for TotalElements.
Exch acidity (H+Al) unbuffered, in 1 M KCl extract
ExchAcid_ph0-kcl1m
Leenaars J.G.B., A.J.M. van Oostrum and M. Ruiperez Gonzalez, 2014. Africa Soil Profiles Database, Version 1.2. A compilation of georeferenced and standardised legacy soil profile data for Sub-Saharan Africa (with dataset). ISRIC Report 2014/01. Africa Soil Information Service (AfSIS) project and ISRIC - World Soil Information, Wageningen, the Netherlands. See Annex 4.
Exch acidity (H+Al) unbuffered, in 0.05-0.1 M NH4Cl extract
ExchAcid_ph0-nh4cl
Exch acidity (H+Al) unbuffered, in unknown extract
ExchAcid_ph0-unk
Exch acidity (H+Al) buffered at pH 7, in 1M Ca-acetate extract
ExchAcid_ph7-caoac
Exch acidity (H+Al) buffered at pH 7, in unknown extract
ExchAcid_ph7-unk
Exch (extractable / potential) acidity (Al) buffered at pH 8.0-8.5, in 1 M BaCl2 - TEA
ExchAcid_ph8-bacl2tea
Exch (extractable / potential) acidity (Al) buffered at pH 8.0-8.5, in unknown extract
ExchAcid_ph8-unk
Plant available water holding capacity of the soil fine earth fraction, calculated with field capacity defined at 100 cm (pF 2.0)
PAWHC_calcul-fc100wp
Plant available water holding capacity of the soil fine earth fraction, calculated with field capacity defined at 200 cm (pF 2.3)
PAWHC_calcul-fc200wp
Plant available water holding capacity of the soil fine earth fraction, calculated with field capacity defined at 300 cm (pF 2.5)
PAWHC_calcul-fc300wp
Sum of exchangeable bases (Ca++, Mg++, K+, Na+) as percentage of CEC (method specified with CEC and ExchBases)
BSat_calcul-cec
Sum of exchangeable bases (Ca++, Mg++, K+, Na+) as percentage of EffCEC (method specified with EffCEC and ExchBases)
BSat_calcul-ecec
Fine earth. Clod samples (natural clods or reconstituted from < 2mm sample), at field capacity (0.33 bar, 33 kPa, 330 cm, pF 2.5), corrected for coarse fragments if any
BlkDensF_fe-cl-fc
Fine earth. Clod samples (natural clods or reconstituted from < 2mm sample), at oven dry, corrected for coarse fragments if any
BlkDensF_fe-cl-od
Fine earth. Clod samples (natural clods or reconstituted from < 2mm sample), at unknown humidity, corrected for coarse fragments if any
BlkDensF_fe-cl-unk
Fine earth. Core sampling (pF rings), at field capacity (0.33 bar, 33 kPa, 336 cm, pF 2.5), corrected for coarse fragments if any
BlkDensF_fe-co-fc
Fine earth. Core sampling (pF rings), at oven dry, corrected for coarse fragments if any
BlkDensF_fe-co-od
Fine earth. Core sampling (pF rings), at unknown humidity, corrected for coarse fragments if any
BlkDensF_fe-co-unk
Fine earth. Excavation and replacement (i.e. soils too fragile to remove a stable sample) e.g. by auger, at unknown humidity, corrected for coarse fragments if any
BlkDensF_fe-rpl-unk
Fine earth. Type of sample unknown, at unknown humidity, corrected for coarse fragments if any
BlkDensF_fe-unk
Fine earth. Type of sample unknown, at field capacity (0.33 bar, 33 kPa, 330 cm, pF 2.5), corrected for coarse fragments if any
BlkDensF_fe-unkn-fc
Fine earth. Type of sample unknown, at oven dry, corrected for coarse fragments if any
BlkDensF_fe-unkn-od
Whole earth. Clod samples (natural clods), at field capacity (0.33 bar, 33 kPa, 330 cm, pF 2.5), not corrected for coarse fragments if any
BlkDensW_we-cl-fc
Whole earth. Clod samples (natural clods), at oven dry, not corrected for coarse fragments if any
BlkDensW_we-cl-od
Whole earth. Clod samples (natural clods), at unknown humidity, not corrected for coarse fragments if any
BlkDensW_we-cl-unk
Whole earth. Core sampling (pF rings), at field capacity (0.33 bar, 33 kPa, 336 cm, pF 2.5), not corrected for coarse fragments if any
BlkDensW_we-co-fc
Whole earth. Core sampling (pF rings), at oven dry, not corrected for coarse fragments if any
BlkDensW_we-co-od
Whole earth. Core sampling (pF rings), at unknown humidity, not corrected for coarse fragments if any
BlkDensW_we-co-unk
Whole earth. Excavation and replacement (i.e. soils too fragile to remove a stable sample) e.g. by auger, at unknown humidity, not corrected for coarse fragments if any
BlkDensW_we-rpl-unk
Whole earth. Type of sample unknown, at unknown humidity, not corrected for coarse fragments if any
BlkDensW_we-unk
Indirect estimate from total carbonate equivalent, with a factor of 0.12 (molar weights: CaCO3 100g/mol, C 12g/mol)
InOrgC_calcul-caco3
Indirect estimate (total carbon minus organic carbon = inorganic carbon)
InOrgC_calcul-tc-oc
Acidified dry combustion or dry oxidation methods (after removal of carbonates)
OrgC_acid-dc
Acidified. Dry combustion at 1200 C and colometric CO2 measurement (Schlichting et al. 1995)
OrgC_acid-dc-ht
Schlichting E, Blume HP, Stahr K (1995) Soils Practical (in German). Blackwell, Berlin
Acidified. Furnace combustion (e.g., LECO combustion analyzer, Dumas method)
OrgC_acid-dc-ht-analyser
OrgC_acid-dc-lt
OrgC_acid-dc-lt-loi
OrgC_acid-dc-mt
Spectrally measured and converted to Acidified dry combustion or dry oxidation methods (after removal of carbonates)
OrgC_acid-dc-spec
Calculated as total carbon minus inorganic carbon
OrgC_calcul-tc-ic
Unacidified. Dry combustion or dry oxidation methods (without prior removal of carbonates)
OrgC_dc
Unacidified. Dry combustion at high temperature (e.g. 1200 C and colometric CO2 measurement (Schlichting et al. 1995)
OrgC_dc-ht
Unacidified. Dry combustion by furnace (e.g., LECO combustion analyzer, Dumas method). Is total Carbon?
OrgC_dc-ht-analyser
Unacidified. Dry combustion at low temperature e.g. 500 C
OrgC_dc-lt
Unacidified. Loss on ignition (NL) is total Organic Carbon
OrgC_dc-lt-loi
Unacidified. Dry combustion at medium temperature e.g. 840 C
OrgC_dc-mt
Spectrally measured and converted to Unacidified Dry combustion or dry oxidation methods
OrgC_dc-spec
OrgC_wc
Wet oxidation according to Jackson (1958) with chromic acid digestion
OrgC_wc-cro3-jackso
Jackson, M. L. (1958) Soil Chemical Analysis. Prentice-Hall, Englewood Cliffs, New Jersey.
Wet oxidation according to Kalembra and Jenkinson (1973) with acid dichromate
OrgC_wc-cro3-kalembra
Wet oxidation according to Knopp with chromic acid and gravimetric determination of CO2
OrgC_wc-cro3-knopp
Wet oxidation according to Kurmies with K2Cr2O7+H2SO4
OrgC_wc-cro3-kurmies
B. KURMIES, Z. Pflanzenernühr. Dung. u Bodenk., 44 (1949) 121
Wet oxidation according to Nelson and Sommers (1996)
OrgC_wc-cro3-nelso
Nelson and Sommers (1996) in: Sparks DL (ed.). Soil Sci. Soc. Am. book series 5, part 3, pp 961-1010.
Wet oxidation according to USDA-NRCS method 6A1c with acid dichromate digestion, FeSO4 titration, automatic titrator
OrgC_wc-cro3-nrcs6a1c
Wet oxidation according to Tiurin with K-dichromate
OrgC_wc-cro3-tiuri
I. V. TIURIN, Pochvovodenie (Pedology), (1931) 36.
Walkley-Black method (chromic acid digestion)
OrgC_wc-cro3-walkleyblack
Walkley, A. and I. A. Black. 1934. An Examination of Degtjareff Method for Determining Soil Organic Matter and a Proposed Modification of the Chromic Acid Titration Method. Soil Sci. 37:29–37.
Calculated as sum of inorganic carbon and organic carbon
TotC_calcul-ic-oc
Unacidified dry combustion at high temperature (950-1400 C). Total Carbon
TotC_dc-ht
Unacidified dry combustion at high temperature (950-1400 C). Total Carbon (USDA-NRCS method 6A), LECO analyzer at 1140 C
TotC_dc-ht-analyser
Spectrally measured and converted to Unacidified dry combustion at high temperature (950-1400 C).
TotC_dc-ht-spec
Unacidified dry combustion at medium temperature (550-950 C).
TotC_dc-mt
CEC at unknown buffer, in 0.1 M CaCl2 exchange solution
CEC_ph-unkn-cacl2
CEC at unknown buffer, in 0.5 M Li-acetate exchange solution
CEC_ph-unkn-lioac
CEC at unknown buffer, in Mehlich III exchange solution
CEC_ph-unkn-m3
CEC unbuffered at pH of the soil, in 0.01 M Ag-thioura exchange solution
CEC_ph0-ag-thioura
CEC unbuffered at pH o the soil, in 0.5 M BaCl2 exchange solution (0.1.1.0 M)
CEC_ph0-bacl2
CEC unbuffered at pH of the soil, in Cobalt(III) hexamine chloride solution 0,0166M (Cohex) [Co[NH3]6]Cl3 ), ISO 23470 (2007) exchange solution
CEC_ph0-cohex
CEC unbuffered at pH of the soil, in 1 M KCl exchange solution
CEC_ph0-kcl
CEC unbuffered at pH of the soil, in 1 M NH4-chloride exchange solution (0.2-1.0 M)
CEC_ph0-nh4cl
CEC unbuffered at pH of the soil, in 1 M NH4-acetate (NH4OAc) exchange solution (0.25-1.0 M)
CEC_ph0-nh4oac
CEC unbuffered at pH of the soil, in unknown exchange solution
CEC_ph0-unk
CEC buffered at pH 7, in 0.1 M Li-EDTA exchange solution
CEC_ph7-edta
CEC buffered at pH 7, in 1 M NH4-acetate (NH4OAc) exchange solution (0.25-1.0 M)
CEC_ph7-nh4oac
CEC buffered at pH 7, in unknown exchange solution
CEC_ph7-unk
CEC buffered at pH 8.0-8.5, in 0.5 M BaCl2-TEA exchange solution (0.1.1.0 M)
CEC_ph8-bacl2tea
CEC buffered at pH 8.0-8.5, in 0.5 M Ba-acetate exchange solution
CEC_ph8-baoac
CEC buffered at pH 8.0-8.5, in 0.5 M Li-chloride - TEA exchange solution
CEC_ph8-licl2tea
CEC buffered at pH 8.0-8.5, in 1 M Na-acetate exchange solution
CEC_ph8-naoac
CEC buffered at pH 8.0-8.5, in 1 M NH4-acetate exchange solution (0.25-1.0 M)
CEC_ph8-nh4oac
CEC buffered at pH 8.0-8.5, in unknown exchange solution
CEC_ph8-unk
Particles > 2 mm observed in the field. May include concretions and very hard aggregates
CrsFrg_fld
Particles > 2 mm observed in the field and calculated from class values. May include concretions and very hard aggregates
CrsFrg_fldcls
Particles > 2 mm measured in laboratory (sieved after light pounding). May include concretions and very hard aggregates
CrsFrg_lab
Sum of exchangeable bases (Ca, Mg, K, Na) without exchangeable acidity (H+Al), see ExchBases and ExchAcids for methods
EffCEC_calcul-b
Sum of exchangeable bases (Ca, Mg, K, Na) plus exchangeable acidity (H+Al), see ExchBases and ExchAcids for methods
EffCEC_calcul-ba
Elec. conductivity at 1:1 soil/water ratio
EC_ratio1-1
Elec. conductivity at 1:10 soil/water ratio
EC_ratio1-10
Elec. conductivity at 1:2 soil/water ratio
EC_ratio1-2
Elec. conductivity at 1:2.5 soil/water ratio
EC_ratio1-2.5
Elec. conductivity at 1:5 soil/water ratio
EC_ratio1-5
Elec. conductivity in saturated paste (ECe)
ECe_sat
Exch bases (Ca, Mg, K, Na) unknown buffer, in EDTA solution
ExchBases_ph-unkn-edta
Exch bases (Ca, Mg, K, Na) unknown buffer, in Mehlich3 solution with extractable ppm assumed exchangeable cmolc/kg
ExchBases_ph-unkn-m3
Exch bases (Ca, Mg, K, Na) spectrally measured and converted to, unknown buffer, in Mehlich3 solution with extractable ppm assumed exchangeable cmolc/kg
ExchBases_ph-unkn-m3-spec
Exch bases (Ca, Mg, K, Na) unbuffered, in Cobalt(III) hexamine chloride solution 0,0166M (Cohex) [Co[NH3]6]Cl3 ), ISO 23470 (2007)
ExchBases_ph0-cohex
Exch bases (Ca, Mg, K, Na) unbuffered, in 1 M NH4Cl (0.05-1.0 m?)
ExchBases_ph0-nh4cl
Exch bases (Ca, Mg, K, Na) buffered at pH 7, in 1M NH4OAc
ExchBases_ph7-nh4oac
Exch bases (Ca, Mg, K, Na) buffered at pH 7, in 1M NH4OAc, Ca and Mg with AAS (Atomic Absorption Spectrometry)
ExchBases_ph7-nh4oac-aas
Exch bases (Ca, Mg, K, Na) buffered at pH 7, in 1M NH4OAc, K and Na with FP (Flame Photometry)
ExchBases_ph7-nh4oac-fp
Exch bases (Ca, Mg, K, Na) buffered at pH 7, in unknown solution
ExchBases_ph7-unk
Exch bases (Ca, Mg, K, Na) buffered at pH 8.0-8.5, in 0.5 M BaCl2 - TEA solution
ExchBases_ph8-bacl2tea
Exch bases (Ca, Mg, K, Na) buffered at pH 8.0-8.5, in unknown solution
ExchBases_ph8-unk
Method of Saunders and Metelerkamp (anion-exch. resin). Particularly used for available P.
Extr_ap14
Method of Hunter (1975) modified after ISFEI method. Particularly used for available P.
Extr_ap15
Hunter, A. 1975. New techniques and equipment for routine soil/plant analytical procedures. In: Soil Management in Tropical America. (eds E. Borremiza & A. Alvarado). N.C. State University, Raleigh, NC.
Olsen (not acid soils) resp. Bray I (acid soils). Particularly used for available P.
Extr_ap20
Olsen (if pH > 7) resp. Mehlich (if pH < 7). Particularly used for available P.
Extr_ap21
Complexation with citric acid (van Reeuwijk). Particularly used for available P.
Extr_c6h8o7-reeuwijk
Extr_cacl2
Ca phosphate. Particularly used for available S.
Extr_capo4
DiethyneleTriaminePentaAcetic acid (DTPA) method
Extr_dtpa
EthyleneDiamineTetraAcetic acid (EDTA) method
Extr_edta
Method of Truog (dilute H2SO4). Particularly used for available P.
Extr_h2so4-truog
Method of Nelson (dilute HCl/H2SO4). Particularly used for available P.
Extr_hcl-h2so4-nelso
Method of Bray I (dilute HCl/NH4F). Particularly used for available P.
Extr_hcl-nh4f-bray1
Method of Bray II (dilute HCl/NH4F). Particularly used for available P.
Extr_hcl-nh4f-bray2
Method of Kurtz-Bray I (0.025 M HCl + 0.03 M NH4F). Particularly used for available P.
Extr_hcl-nh4f-kurtz-bray
Extr_hno3
ISO. ISO/DIS 17586 Soil Quality - Extraction of Trace Elements Using Dilute Nitric Acid, 2016; p 14
Hot water. Particularly used for available B
Extr_hotwater
Extr_m1
Extr_m2
Mehlich3 method (extractant 0.2 N CH3COOH + 0.25 N NH4NO3 + 0.015 N NH4F + 0.013 N HNO3 + 0.001 M EDTA)
Extr_m3
Spectrally measured and converted to Mehlich3 method (extractant 0.2 N CH3COOH + 0.25 N NH4NO3 + 0.015 N NH4F + 0.013 N HNO3 + 0.001 M EDTA)
Extr_m3-spec
Method of Olsen (0.5 M Sodium Bicarbonate (NaHCO3) extraction at pH8.5). Particularly used for available P.
Extr_nahco3-ols
Method of Olsen, modified by Dabin (ORSTOM). Particularly used for available P.
Extr_nahco3-olsen-dabi
Method of Morgan (Na-acetate/acetic acid). Particularly used for available P.
Extr_naoac-morga
Ambic1 method (ammonium bicarbonate) (South Africa). Particularly used for available P.
Extr_nh4-co3-2-ambic1
NH4-lactate extraction method (KU-Leuven). Particularly used for available P.
Extr_nh4ch3ch-oh-cooh-leuv
Dissolved in water and precipitated by acetone
CaSO4_gy01
Differ. between Ca-conc. in sat. extr. and Ca-conc. in 1/50 s/w solution
CaSO4_gy02
Calculated from conductivity of successive dilutions
CaSO4_gy03
In 0.1 M Na3-EDTA-/- turbidimetric (Begheijn, 1993)
CaSO4_gy04
Gravimetric after dissolution in 0.2 N HCl (USSR-method)
CaSO4_gy05
Total-S, using LECO furnace, minus easily soluble MgSO4 and Na2SO4
CaSO4_gy06
CaSO4_gy07
KSat_calcul-ptf
Saturated and not saturated hydraulic conductivity.
KSat_calcul-ptf-genucht
KSat_calcul-ptf-saxto
Saturated hydraulic conductivity. Bore hole method
Ksat_bhol
Saturated hydraulic conductivity. Permeability in cm/hr determined in column filled with fine earth fraction
Ksat_colum
Saturated hydraulic conductivity. Double ring method
Ksat_dblring
Saturated hydraulic conductivity. Inverse bore hole method
Ksat_invbhol
VMC_calcul-ptf
VMC_calcul-ptf-brookscorey
Volumetric moisture content in disturbed samples
VMC_d
Pressure-plate extraction, disturbed -clod- samples (wt%) * density
VMC_d-cl
Pressure-plate extraction, disturbed -clod- samples (wt%) * density on weight/weight basis; to be converted to v/v (with BD at appropriate humidity)
VMC_d-cl-ww
Volumetric moisture content in disturbed samples on weight/weight basis to be converted to v/v (with BD at appropriate humidity)
VMC_d-ww
VMC_ud
VMC_ud-cl
Volumetric moisture content in undisturbed samples (pF rings cores)
VMC_ud-co
TotalN_bremner
Bremner, J. M. 1965. Total Nitrogen. In: C. A. Black (ed.) Methods of soil analysis. Part 2: Chemical and microbial properties. Number 9 in series Agronomy. American Society of Agronomy, Inc. Publisher, Madison, USA. Pp. 1049-1178
TotalN_calcul
Calculated from OrgC and C/N ratio of 10
TotalN_calcul-oc10
TotalN_dc
Dry combustion at 800-1000 C celcius (Dumas method)
TotalN_dc-ht-dumas
Element analyzer (LECO analyzer), Dry Combustion
TotalN_dc-ht-leco
Spectrally measured and converted to N by dry combustion
TotalN_dc-spec
TotalN_h2so4
TotalN_kjeldahl
Kjeldahl, J. (1883) ‘Neue Methode zur Bestimmung des Stickstoffs in organischen Körpern’ (New method for the determination of nitrogen in organic substances), Zeitschrift für analytische Chemie, 22 (1) : 366-383.
TotalN_kjeldahl-nh4
TotalN_nelso
Darrell W Nelson, Lee E Sommers, Total Nitrogen Analysis of Soil and Plant Tissues, Journal of Association of Official Analytical Chemists, Volume 63, Issue 4, 1 July 1980, Pages 770–778,
Dry combustion using a CN-corder and cobalt oxide or copper oxide as an oxidation accelerator (Tanabe and Araragi, 1970)
TotalN_tn04
Continuous flow analyser after digestion with H2SO4/salicyclic acid/H2O2/Se
TotalN_tn06
Sample digested by sulphuric acid, distillation of released ammonia, back titration against sulpuric acid
TotalN_tn08
FulAcidC_unk
HumAcidC_unk
OrgM_calcul-oc1.73
TotHumC_unk
pHCaCl2 (soil reaction) in a soil/CaCl2 solution (0.01-1 M)
pHCaCl2
pHCaCl2 (soil reaction) in 1:1 soil/1 M CaCl2 solution (1 M)
pHCaCl2_ratio1-1
pHCaCl2 (soil reaction) in 1:10 soil/CaCl2 solution (0.01-1 M)
pHCaCl2 (soil reaction) in 1:2 soil/CaCl2 solution (0.01-1 M)
pHCaCl2_ratio1-2
pHCaCl2 (soil reaction) in 1:2.5 soil/CaCl2 solution (0.01-1 M)
pHCaCl2 (soil reaction) in 1:5 soil/CaCl2 solution (0.01-1 M)
pHCaCl2_ratio1-5
pHCaCl2 (soil reaction) in saturated paste
pHCaCl2_sat
pHH2O (soil reaction) in a soil/water solution
pHH2O
pHH2O (soil reaction) in 1:1 soil/water solution
pHH2O_ratio1-1
pHH2O (soil reaction) in 1:10 soil/water solution
pHH2O (soil reaction) in 1:2 soil/water solution
pHH2O_ratio1-2
pHH2O (soil reaction) in 1:2.5 soil/water solution
pHH2O (soil reaction) in 1:5 soil/water solution
pHH2O_ratio1-5
pHH2O (soil reaction) in water saturated paste
pHH2O_sat
Spectrally measured and converted to pHH2O (soil reaction) in unknown soil/water solution
pHH2O_unkn-spec
pHKCl (soil reaction) in a soil/KCl solution (0.01-1 M)
pHKCl
pHKCl (soil reaction) in 1:1 soil/KCl solution (1 M)
pHKCl_ratio1-1
pHKCl (soil reaction) in 1:10 soil/KCl solution (0.01-1 M)
pHKCl_ratio1-10
pHKCl (soil reaction) in 1:2 soil/KCl solution (0.01-1 M)
pHKCl_ratio1-2
pHKCl (soil reaction) in 1:2.5 soil/KCl solution (0.01-1 M)
pHKCl_ratio1-2.5
pHKCl (soil reaction) in 1:5 soil/KCl solution (0.01-1 M)
pHKCl_ratio1-5
pHKCl (soil reaction) in saturated paste
pHKCl_sat
pHNaF (soil reaction) in a soil/NaF solution (0.01-1 M)
pHNaF
pHNaF (soil reaction) in 1:1 soil/NaF solution (1 M)
pHNaF_ratio1-1
pHNaF (soil reaction) in 1:10 soil/NaF solution (0.01-1 M)
pHNaF_ratio1-10
pHNaF (soil reaction) in 1:2 soil/NaF solution (0.01-1 M)
pHNaF_ratio1-2
pHNaF (soil reaction) in 1:2.5 soil/NaF solution (0.01-1 M)
pHNaF_ratio1-2.5
pHNaF (soil reaction) in 1:5 soil/NaF solution (0.01-1 M)
pHNaF_ratio1-5
pHNaF (soil reaction) in saturated paste
pHNaF_sat
Particle size analysis with beaker method with appropriate dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
beaker-dispersion
Spectrally predicted based on measurments with the beaker method with appropriate dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
beaker-dispersion-spectral
Particle size analysis with beaker method with no dispersion of the primary particlesand pretreatment to remove cementing particles (organic matter, carbonates)
beaker-no_dispersion
Spectrally predicted based on measurments with the beaker method with no dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
beaker-no_dispersion-spectral
Particle size analysis with beaker method unknown dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
beaker-unknown_dispersion
Spectrally predicted based on measurments with the beaker method unknown dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
beaker-unknown_dispersion-spectral
Field estimate of the particle size distribution, typically done by hand
field estimate
Particle size analysis with hydrometer (bouyoucos) method with appropriate dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
hydrometer (bouyoucos)-dispersion
Spectrally predicted based on measurments with the hydrometer (bouyoucos) method with appropriate dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
hydrometer (bouyoucos)-dispersion-spectral
Particle size analysis with hydrometer (bouyoucos) method with no dispersion of the primary particles and removal of cementing particles (organic matter, carbonates)
hydrometer (bouyoucos)-no_dispersion
Spectrally predicted based on measurments with the hydrometer (bouyoucos) method with no dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
hydrometer (bouyoucos)-no_dispersion-spectral
Particle size analysis with hydrometer (bouyoucos) method unknown dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
hydrometer (bouyoucos)-unknown_dispersion
Spectrally predicted based on measurments with the hydrometer (bouyoucos) method unknown dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
hydrometer (bouyoucos)-unknown_dispersion-spectral
Particle size analysis with laser diffraction with appropriate disperson of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
laser diffraction-dispersion
Spectrally predicted based on measurments with laser diffraction analysis with appropriate disperson of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
laser diffraction-dispersion-spectral
Particle size analysis with laser diffraction with no dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
laser diffraction-no_dispersion
Spectrally predicted based on measurments with laser diffraction analysis with no dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
laser diffraction-no_dispersion-spectral
Particle size analysis with laser diffraction with unknown dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
laser diffraction-unknown_dispersion
Spectrally predicted based on measurments with laser diffraction analysis with unknown dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
laser diffraction-unknown_dispersion-spectral
Particle size analysis with pipette method with appropriate dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
pipette-dispersion
Spectrally predicted based on measurments with the pipette method with appropriate dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
pipette-dispersion-spectral
Particle size analysis with pipette method with no dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
pipette-no_dispersion
Spectrally predicted based on measurments with the pipette method with no dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
pipette-no_dispersion-spectral
Particle size analysis with pipette method unknown dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
pipette-unknown_dispersion
Spectrally predicted based on measurments with the pipette method unknown dispersion of the primary particles and pretreatment to remove cementing particles (organic matter, carbonates)
pipette-unknown_dispersion-spectral
P retention at ~pH4.6 (acc. Blakemore 1987)
RetentP_blakemor
Blakemore L.C. Searle P.L. and Daly, B.K. (1987) Methods for chemical analysis of soils. NZ Soil Bureau, Lower Hutt, New Zealand.
Spectrally measured and converted to P retention (P buffer index)
RetentP_unkn-spec
Porosity calculated from volumetric moisture content at pF 0 (1 cm)
Poros_calcul-pf0
Sum of soluble anions (Cl, SO4, HCO2, CO3, NO3, F)
SlbAn_calcul-unk
SlbCat_calcul-unk
Calculated sum of sand, silt and clay fractions
SumTxtr_calcul
Dissolution of carbonates by Acetic acid [CH3COOH], external heat (dry combustion)
CaCO3_acid-ch3cooh-dc
Dissolution of carbonates by Acetic acid [CH3COOH], no external (no dry combustion)
CaCO3_acid-ch3cooh-nodc
Dissolution of carbonates by Acetic acid [CH3COOH], external heat unknown
CaCO3_acid-ch3cooh-unk
Dissolution of carbonates by acid, external heat (dry combustion)
CaCO3_acid-dc
Dissolution of carbonates by Sulfuric acid [H2SO4], external heat (dry combustion)
CaCO3_acid-h2so4-dc
Dissolution of carbonates by Sulfuric acid [H2SO4], no external (no dry combustion)
CaCO3_acid-h2so4-nodc
Dissolution of carbonates by Sulfuric acid [H2SO4], external heat unknown
CaCO3_acid-h2so4-unk
Dissolution of carbonates by Phosphoric acid [H3PO4], external heat (dry combustion)
CaCO3_acid-h3po4-dc
Dissolution of carbonates by Phosphoric acid [H3PO4], no external (no dry combustion)
CaCO3_acid-h3po4-nodc
Dissolution of carbonates by Phosphoric acid [H3PO4], external heat unknown
CaCO3_acid-h3po4-unk
Dissolution of carbonates by Hydrochloric acid [HCl], or Perchloric acid [HClO4], external heat (dry combustion)
CaCO3_acid-hcl-dc
Dissolution of carbonates by Hydrochloric acid [HCl], or Perchloric acid [HClO4], no external (no dry combustion)
CaCO3_acid-hcl-nodc
Dissolution of carbonates by Hydrochloric acid [HCl], or Perchloric acid [HClO4], external heat unknown
CaCO3_acid-hcl-unk
Dissolution of carbonates by acid, no external (no dry combustion)
CaCO3_acid-nodc
Dissolution of carbonates by acid, external heat unknown
CaCO3_acid-unk
CaCO3_ca01
ON L 1084-99 (1999) Chemical analyses of soils—determination of carbonate. In: Austrian Standards Institute (ed) O‹ NORM L 1084. Austrian Standards Institute, Vienna
CaCO3_ca02
Wesemael, J.C., 1955. De bepaling van van calciumcarbonaatgehalte van gronden. Chemisch Weekblad 51, 35-36.
CaCO3_ca03
Calcimeter method (volumetric after adition of dilute acid)
CaCO3_ca04
Gravimetric (USDA Agr. Hdbk 60-/- method Richards et al., 1954)
CaCO3_ca05
H3PO4 acid at 80C, conductometric in NaOH (Schlichting & Blume, 1966)
CaCO3_ca06
CaCO3_ca07
Nelson, D.W., and L.E. Sommers. 1982. Total carbon, organic carbon and organic matter. p. 539-579. In A.L. Page (ed.), 1983. Methods of soil analysis. Part 2. 2nd ed. Agron. Monogr. 9. ASA and SSSA, Madison, WI.
CaCO3_ca08
Carbonates: H3PO4 treatment at 80 deg. C and CO2 measurement like TOC (OC13), transformation into CaCO3 (Schlichting et al. 1995)
CaCO3_ca09
CaCO3 Equivalent, CO2 evolution after HCl treatment. Gravimetric
CaCO3_ca10
CaCO3_ca11
Treatment with H2SO4 N/2 acid followed by titration with NaOH N/2 in presence of an indicator
CaCO3_ca12
Indirect estimate: inorganic carbon divided by 0.12 (computed as total carbon minus organic carbon)
CaCO3_calcul-tc-oc
Total P-/- colorimetric in H2SO4-Se-Salicylic acid digest( sulfuric acid) Particularly used for Total P.
Total_h2so4
HCl extraction. Particularly used for Total P.
Total_hcl
Hydrocloric (HCl) extraction in nitric/perchloric acid mixture (totals) aqua regia
Total_hcl-aquaregia
Perchloric acid percolation. Particularly used for Total P.
Total_hclo4
Nitric acid attack. Particularly used for Total P.
Total_hno3-aquafortis
COLORIMETRIC VANADATE MOLYBDATE. Particularly used for Total P.
reagent of Baeyens. Precipitation in form of Phosphomolybdate. Particularly used for Total P.
Total_tp03
acid fleischman. Particularly used for Total P.
Total_tp04
8 M HCl extraction. Particularly used for Total P.
Total_tp05
Molybdenum blue method, using ascorbic acid as reductant after heating of soil to 550 C and extraction with 6M sulphuric acid. Particularly used for Total P.
Total_tp06
1:1 H2SO4 : HNO3. Particularly used for Total P.
Total_tp07
After Nitric acid attack (boiling with HNO3), colometric determination (method of Duval).. Particularly used for Total P.
Total_tp08
Walker and Adams, 1958. Particularly used for Total P.
Total_tp09
WALKER, T. W., AND A. F. R. ADAMS. 1958. Studies on soil organic matter. I. Soil Sci. 85: 307-318.
Total_tp10
Total_unk
Total_xrd
Total_xrf
Total_xrf-p
Total_xtf-t