Menu
(1688) Soil association
1 - A group of defined and named taxonomic soil units occurring together in an individual and characteristic pattern over a geographic region (sometimes called `natural land type`). 2 - A mapping unit used on general soil maps, in which two or more defined taxonomic units, occurring together in a characteristic pattern, are combined because the scale of the map or the purpose for which it is being made, does not require delineation of the individual soils. The legend of the Soil Map of the World comprises an estimated 5,000 different map units, which consists of soil units or associations of soil units occurring within the limits of a mappable physiographic entity.
Related items you may like
Publications
Publications
Publications
Irrigation
Drainage
Dictionary - Soil Health Terms
- Belt of soil water
- Interstice, or Void (in a rock, or soil)
- Well graded soil
- Soil Science
- Soil
- Soil morphology
- Mature soil
- Immature soil
- Skeletal soil
- Endodynamorphic soil
- Ectodynamorphic soil
- Hydromorphic soil
- Truncated soil
- Residual soil
- Transported soil, or Secondary soil
- Glacial tills, or Glacial soil
- Alluvial soil
- Aeolian soil
- Colluvial soil
- Mineral soil
- Organic soil
- Soil profile
- Soil horizon
- Soil horizon symbols
- Subsoil
- Topsoil, or Surface soil
- Plough soil, Plowsole pan, or Induced pressure
- Plansols, or Planosoils
- Soil texture
- Soil separates
- Soil particle
- Soil structure
- Soil classification
- Soil taxonomy
- Soil series
- Soil type
- Azonal soil
- Intrazonal soil
- Great soil group
- Soil family
- Soil phase
- Soil association
- Soil complex
- Prairie soil
- Black turf soil
- Chestnut soil
- Brown (steppe) soil
- Sierozem or Grey desert soil
- Desert soil
- Laterite soil, or Latosol
- Regur or Black cotton soil
- Mallee soil, Solonized brown soil, Mallisol
- Transitional soil
- Soil consistence, or Consistency
- Air capacity of soil
- Air content of soil
- Mobile soil colloids
- Soil solution
- Unsaturated soil solution
- Saturated soil
- Soil reaction
- Soil moisture
- Soil moisture accretion
- Soil moisture deficit
- Unsaturated soil
- Saturated soil paste
- Unavailable soil moisture, or Unavailable water
- Soil moisture tension, or Moisture tension
- Moisture characteristics (of soils)
- pF of soil water
- Soil water zone
- Soil water deficit
- Soil water tension
- Soil temperature
- Daily range of soil temperature
- Productivity (of soil)
- Lacustrine, Fen soil, or Lowmoor
- Bog soil
- Half bog soil
- Pool soils
- Dal soil
- Dead soils
- Tundra soil
- Rodoorn soils
- Kleiplaat soils
- Schor soils
- Plaat, or Slik soils
- Pik, Knip, or Knik soils
- Saline soil
- Solodif, Soloti soil, Solod, or Soloth
- Acid soil
- Neutral soil
- Sajong soils, or Shachiang soils
- Calcareous soil
- Non-calcareous soil
- Alluvial meadow soil
- Humic gley soil
- Soil horizon of carbonate accumulation
- Soil amendment
- Soil modification
- Soil sterilization
- Soil conditioner
- Allowable bearing value, or Allowable soil pressure
- Soil classification systems
- Cohesive soil
- Soil-cement lining
- Plastic soil-cement
- Standard soil-cement
- Wetted soil percentage
- Available soil water storage
- Soil hydraulic conductivity
- Soil intake (infiltration) rate
- Soil specific gravity or Dry bulk density
- Soil water stress
- Soil water content
- Soil water tension
- Total available soil water storage
- Total soil water storage
- Soil degradation
- Alkaline soil
- Cohesionless soil
- Non-saline alkali soil
- Saline sodic soil
- Saline soil
- Sodic soil
- Subsoil
- Subsoil amelioration
- Unstable soil
- Subsurface drainage, Under drainage, Subsoil drainage, Underground drainage, or Covered drainage
- Drain tile, Field drain pipe, Subsoil pipe, Land pipe
- Soil water head
- Total head, Total hydraulic head or Total soil water potential
- Uniform soil
- Neutron probe, Neutron soil moisture probe (or gauge), Neutron moisture meter, or Neutron scattering probe
- Soil conservation
- Soil management
- Soil creep, or Solifluxion
- Soil erosion
- Surface sealing (of soil)
- Soil K-factor
- Soil loss equation
- Total potential (of soil water)
- Soil water pressure
- Soil Water Characteristics Curve
- Soil water diffusivity
- Supporting soil conservation practices
- Regenerated soil
- Soil binder
- Soil-saving dam
- Soil-saving dike
- Soil flushing
- Nightsoil
- Renovating soil
- Health
- Subsoiling
- Soil improvement
- Soil amendment
- Soil conditioner
- Soil sealant
- Soil injection
- Soil
- Regolith Soil
- Mineral soil
- Muck soil
- Soil structure
- Soil aggregation
- Soil texture
- Soil capping or Soil crusting
- Effective soil depth
- Soil permeability
- Impervious soil
- Soil aeration
- Soil pH
- Soil fertility
- Soil drainage status
- Soil salinization
- Subsoil flow tank
- Soil survey
- Soil survey report
- Soil Carbon Pool
