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soils  search
NTacid sulfate soils
 Alfisols
 Alluvial soils
 Andisols
 Andosols
 Aridisols
 Bog soils
 Brown forest soils
 Brown soils
 Calcareous soils
 Cambisols
 Chernozems
 Chestnut soils
 Clay soils
 Cryosols
 Desert soils
 Entisols
 Ferralites
 Ferralsols
 Ferruginous soils
 fragipans
 Gleys
 Gray forest soils
 Halomorphic soils
 Histosols
 humic soils
 Hydromorphic soils
 Inceptisols
 Intrazonal soils
 laterites
 Latosols
 Lithosols
 loam
 Luvisols
 Meadow soils
 Mediterranean soils
 Mollisols
 Mor
 Mull
 Oxisols
 Planosols
 Podzols
 Pseudogleys
 Red soils
 Regosols
 Rendzinas
 saline soils
 Sierozems
 Sod-podzolic soils
 Solonchak soils
 Solonetz soils
 Spodosols
 Terra rossa
 Tundra soils
 Ultisols
 Vertisols
 Zonal soils
RTactive layer
 aggregate
 agriculture
 agrochemicals
 alluvium
 bacteria
 biota
 bedrock
 biorhexistasy
 breakthrough curves
 bulk density
 calcification
 calcrete
 caliche
 capillarity
 capillary water
 catenas
 character
SNUsed for general pedology as well as for specific topics.
Soils (category)  search
SNSoils, GeoRef category code 25, is one of thirty categories used to classify documents in GeoRef. Each reference in GeoRef is assigned one or more categories. Categories can be used, in addition to Terms, to refine searches (See List A.).
soils maps  search
BTmaps
 .soils maps
RTsoils
SNAdded to Thesaurus in 1981.