Philosophies of soil classifications : from is to does / S.W. Buol -- How good is our soil classification? / R. Dudal -- Soil classification : past and present / Robert J. Ahrens, Thomas J. Rice, Jr., ...

Soils have a natural characteristic called the cation exchange capacity (CEC) that allows them to hold (and exchange) cations (e.g., Ca+2 or Na+). These cations are held tight enough on the CEC that ...

Perspective -- Geologic time : The quaternary period ; Archeology ; Estimating geologic time ; Early estimates of geologic time -- Weathering and erosion : Structure of the rocks ; Structure in ...

Soils affected by salts can be described in two ways: by salinity classification or by potential crop response (Figure 1). Salinity classifications are based on the total accumulation of salts in the ...

The Keys to Soil Taxonomy, 13th edition, has been posted to USDA’s Natural Resources Conservation Service website. The Keys to Soil Taxonomy provides the taxonomic keys necessary for the ...

Rapid advances in sensing technologies and artificial intelligence are transforming how we observe, understand, and manage soils. Many of soil properties ...

Soils play a central role in the climate system, regulating processes such as carbon storage, water dynamics, nutrient cycling and ecosystem productivity.