holdridgeClasses is a character vector naming, from left to right, top to bottom, the 38 classes defined by the International Institute for Applied Systems Analysis (IIASA).

holdridgeLifeZones is a character vector naming, from left to right, top to bottom, the 38 cells of the Holdridge classification plot.

holdridgeClassesUp and holdridgeLifeZonesUp replace spaces with new lines, for more legible plotting with HoldridgeHexagons().

holdridgeClasses

holdridgeLifeZones

holdridgeLifeZonesUp

holdridgeClassesUp

Format

An object of class character of length 38.

An object of class character of length 33.

An object of class character of length 33.

An object of class character of length 38.

Source

Holdridge (1947), "Determination of world plant formations from simple climatic data", Science 105:367–368. doi:10.1126/science.105.2727.367

Holdridge (1967), Life zone ecology. Tropical Science Center, San José

Leemans, R. (1990), "Possible change in natural vegetation patterns due to a global warming", International Institute for Applied Systems Analysis Working paper WP-90-08. https://pure.iiasa.ac.at/id/eprint/3443/1/WP-90-008.pdf

See also

Other Holdridge plotting functions: AddToHoldridge(), HoldridgeHypsometricCol(), HoldridgePlot(), holdridge