Classification of forests according to their establishment, structure and management into 17 classes («types»). In contrast to the forest typology with 12 classes, the forest typology with 17 classes defines each development stage (young growth to timber) as an individual class. Reference: Field Survey (MID 255: Nutzungskategorie, MID 257: Waldtyp nach Aufnahmeanleitung LFI, MID 260: Waldform, MID 267: Bestandesstruktur, MID 261: Entwicklungsstufe)

Code	Text	NFI1	NFI2	NFI3	NFI4	NFI4b	NFI5
-1	n/a	x	x	x	x	x	x
1	inaccessible forest	x	x	x	x	x	x
2	shrub forest	x	x	x	x	x	x
3	permanently unstocked forest area	x	x	x	x	x	x
4	temporarily unstocked forest area	x	x	x	x	x	x
5	aisle, embankment	x	x	x	x	x	x
6	permanently open stand	x	x	x	x	x	x
7	(nut) orchard, plantation	x	x	x	x	x	x
8	coppice forest	x	x	x	x	x	x
9	coppice with standards	x	x	x	x	x	x
10	selection type high forest	x	x	x	x	x	x
11	non-uniform high forest	x	x	x	x	x	x
12	young growth/ thicket	x	x	x	x	x	x
13	poletimber	x	x	x	x	x	x
14	young timber	x	x	x	x	x	x
15	medium timber	x	x	x	x	x	x
16	old timber	x	x	x	x	x	x
17	incomplete survey	x					x