Modifiers are physicochemical, spatial, geological, biological, anthropogenic, and temporal variables with defined categorical values and ranges that are used to describe CMECS units. Modifiers can be applied when additional information is needed to further characterize an identified unit for individual applications. Modifiers provide additional environmental, structural, or biological information about the ecosystem; modifiers are useful for description and application- but they are not required for classification according to the CMECS schema. Modifiers are a dynamic component of the CMECS in the sense that users are free to apply additional local modifiers for their project needs as long as these are reported and do not conflict with modifiers outlined in this section. The modifiers are organized by into general modifier types, and then listed alphabetically within the given type for easy reference. The general modifier types include Anthropogenic, Biogeographic, Biological, Physical, Physicochemical, Spatial, and Temporal.

https://w3id.org/CMECS/CMECS_00000565

http://www.w3.org/2002/07/owl#Thing