Item 10: Visited soil profiles
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SOIL ATLAS OF ASIA 2ND EDITORIAL BOARD MEETING RURAL DEVELOPMENT ADMINISTRATION, NATIONAL INSTITUTE OF AGRICULTURAL SCIENCES, JEONJU, REPUBLIC OF KOREA | 29 APRIL – 3 MAY 2019
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Item 10: Visited soil profiles
- 3. Horizontal cut O A 2Btg 2Btgc 3Btgx → no diagnostic surface horizon Retic Properties (2015) Argic horizon Stagnic properties Ferric horizon
- 5. Key to the WRB Reference Groups 2014 Principal qualifiers Supplementary qualifiers Other soils having an argic horizon that starts ≤ 100 cm from the soil surface and has retic properties at its upper boundary. RETISOLS Fragic Glossic Leptic Plaggic/ Pretic/ Terric Folic/ Histic Gleyic Stagnic Sideralic Nudiargic Neocambic Albic Skeletic Endodolomitic / Endocalcaric Dystric/ Eutric Abruptic Alumic Arenic/ Clayic/ Loamic/ Siltic Aric Colluvic Cutanic Densic Drainic Gelic Humic Nechic Novic Oxyaquic Profondic Ruptic Protospodic Technic Toxic Transportic Turbic retic properties do not start at the upper boundary of the argic
- 6. A E Bt C L A Y ARGIC ARGIC ARGIC ARGIC CEC / kg clay ≥ 24 cmol+ CEC / kg clay ≥ 24 cmol+ CEC / kg clay < 24 cmol+ CEC / kg clay < 24 cmol+ B ≥ 50 % B ≥ 50 % B < 50 % B < 50 % Luvisol Alisols Lixisols Acrisols In major part between 50-100 cm WRB,2006
- 7. A E Bt C L A Y ARGIC ARGIC ARGIC ARGIC CEC / kg clay ≥ 24 cmol+ CEC / kg clay ≥ 24 cmol+ CEC / kg clay < 24 cmol+ CEC / kg clay < 24 cmol+ eB ≥ 50 % eB ≥ 50 % eB < 50 % eB < 50 % Luvisol Alisols Lixisols Acrisols In major part between 50-100 cm WRB,2014
- 8. Key to the WRB Reference Groups 2014 Principal qualifiers Supplementary qualifiers Abruptic Fragic (?) Leptic Petroplinthic/ Pisoplinthic/ Plinthic Hydragric/ Anthraquic/ Plaggic/ Pretic/ Terric Gleyic Stagnic Vertic Nudiargic Lamellic Albic Ferric Rhodic/ Chromic Fractic Skeletic Haplicc Andic Arenic/ Clayic/ Loamic/ Siltic Aric Neocambic Colluvic Cutanic Densic Differentic Hyperdystric/ Epieutric Fluvic Gelic Humic/ Ochric Hyperalic Magnesic Nechic Nitic Novic Oxyaquic Profondic Raptic Protospodic Technic Toxic Transportic Turbic
- 9. Ferric Stagnic Fragic Alisols (Epiloamic, Endosiltic, Cutanic, Ochric)
- 10. α,α, dipyridyl reaction Reducing conditions starting at the surface Apl 2Bl 3Ccl 3Cr
- 11. Gleyic properties Fluvic properties Ferric horizon
- 12. Key to the reference soil groups 2006 Prefix qualifiers Suffix qualifiers Other soils having 1. within 50 cm of the mineral soil surface a layer, 25 cm or more thick, that has reducing conditions in some parts and a gleyic colour pattern throughout; and 2. no layers with andic or vitric properties with a combined thickness of either GLEYSOLS (GL) Folic Histic Anthraquic Technic Fluvic Endosalic Vitric Andic Spodic Plinthic Mollic Gypsic Calcic Alic Acric Luvic Lixic Umbric Haplic Thionic Abruptic Calcaric Tephric Colluvic Humic Sodic Alcalic Alumic Toxic Dystric Eutric Petrogleyic Turbic Gelic Greyic Takyric Arenic Siltic Clayic Drainic Novic a) 30 cm or more within 100 cm of the soil surface and starting within 25 cm of the soil surface; or b) 60 percent or more of the entire thickness of the soil when continuous rock or a cemented or indurated layer is starting between 25 and 50 cm from the soil surface.
- 13. Key to the WRB Reference Groups 2014 Principal qualifiers Supplementary qualifiers Other soils having one of the following: 1. a layer ≥ 25 cm thick, and starting ≤ 40 cm from the mineral soil surface, that has a. gleyic properties throughout; and b. reducing conditions in some parts of every sublayer; or 2. both of the following: a. a mollic or umbric horizon, > 40 cm thick, that has reducing conditions in some parts of every subhorizon, from 40 cm below the mineral soil surface to the lower limit of the mollic or umbric horizon; and b. directly underneath the mollic/umbric horizon, a layer ≥ 10 cm thick, that has its lower limit ≥ 65 cm below the mineral soil surface, and that has: i.gleyic properties throughout; and ii. reducing conditions in some parts of every sublayer. GLEYSOLS (GL) Thionic Reductic Subaquatic/ Tidalic Hydragric/ Anthraquic Folic/ Histic Chernic/ Mollic/ Umbric Oxygleyic/ Reductigleyic Pisoplinthic/ Plinthic Gypsic Calcic Spodic Fluvic Dolomitic/ Calcaric Dystric/ Eutric Abruptic Acric/ Lixic/ Alic/ Luvic Alcalic/ Alumic Andic Arenic/ Clayic/ Loamic/ Siltic Aric Colluvic Drainic Gelic Humic Inclinic Limnic Nechic Novic Pachic Petrogleyic Relocatic Salic (proto) Skeletic Sodic Sulfidic Takyric/ Aridic Technic Tephric Toxic Turbic Uterquic Vertic Vitric
- 14. Eutric, Fluvic, Oxogleyic Gleysol (Drainic, Loamic, Sodic, Protosalic)
- 15. Apl Adl 2Bcl 3Cr Puddled layer Anthaquic horizon Plough pan Hydrargic horizon Pedon 3
- 16. Key to the RSGs 2006
- 17. Key to the RSGs 2014 Principal qualifiers Supplemetary qualifiers Other soils having: 1. a hortic, irragric, plaggic or terric horizon ≥ 50 cm thick; or 2. an anthraquic horizon and an underlying hydragric horizon with a combined thickness of ≥ 50 cm; or 3. a pretic horizon, the layers of which have a combined thickness of ≥ 50 cm, within ≤ 100 cm of the mineral soil surface. ANTHROSOLS (AT) Hortic/ Hydragric/ Irragric/ Plaggic/ Pretic/ Terric Acric/ Lixic/ Alic/ Luvic Alcalic/ Eutric/ Dystric Andic Arenic/ Clayic/ Loamic/ Siltic Calcic Dolomitic/ Calcaric Escalic Ferralic/ Sideralic Fluvic Gleyic Endoleptic Novic Oxyaquic Regic Salic Skeletic Sodic Spodic Stagnic Technic Toxic Vertic Vitric
- 18. Pedon 3 Hydargic Anthrosol (Epieutric, Endodystric, Epiloamic, Endoclayic, Gleyic)