User:Pihka/GFDC

Global Forest Decimal Classification
The old Forest Decimal Classification (FDC) has been renamed as the Global Forest Decimal Classification (GFDC) as its updated new version and in anticipation with collaboration with the Global Forest Information Service (GFIS) consortium.

The new edition has been prepared by the IUFRO Working Party 6.03.03 Global Forest Decimal Classification.

Relation to UDC
GFDC is a more detailed subdivision for UDC class 630 Forestry. The editorial group of the current version have collaborated with the UDC consortium to minimize any differences between the UDC:630 and GFDC subdivisions.

Flury system
Work started in 1903 by IUFRO. Accepted in 1933.

ODC
Work on the third version started in 1949 and was finished in 1953. The full schedule was published in English by CABI in 1955.

Amendments and German version
In 1981-1989 there were 8 amendments by a IUFRO working party. In 1990 IUFRO published a tri-lingual abridged version in English, French and German and a full version in German in 1992.

Current version
The update of the FDC classification was started in 2005 and a new full version in English and German with an alphabetical index was published by IUFRO in spring 2006.

Main headings

 * NB. Class 0 is general and should not be divided in sub-groups, except with auxiliary numbers, thus classes 01/09 are forbidden, but combinations, such as 0--011 (= forest terminology) and 0(031) (= forest encyclopedia) are allowed. Auxiliary numbers are published as an appendix. Also other UDC auxiliary numbers can be used.