Skip to main content

Search from vocabulary

Content language

Concept information

Science Keywords > EARTH SCIENCE > AGRICULTURE > SOILS > CATION EXCHANGE CAPACITY

Preferred term

CATION EXCHANGE CAPACITY  

Definition

  • The sum of exchangeable bases plus total soil acidity at a specific pH value, usually 7.0 or 8.0. When acidity is expressed as salt extractable acidity, the cation exchange capacity (CEC) is called the effective cation exchange capacity (ECEC) because this is considered to be the CEC of the exchanger at the native pH value. It is usually expressed in centimoles of charge per kilogram of exchanger or millimoles of charge per kilogram of exchanger (en)

Broader concept

URI

https://gcmd.earthdata.nasa.gov/kms/concept/5c05e69f-f6db-4296-abd3-3b07e6093579

Download this concept:

RDF/XML TURTLE JSON-LD Last modified 12/6/20