TZ-scale – temperature requirement (1-7, 0)

1 – in accordance with the alpine, or tundra belt
2 – in accordance with the boreal tundra belt
3 – in accordance with the taiga belt
4 – in accordance with the mixed forest belt
5 – in accordance with the broad-leaved forest belt
6 – in accordance with the submediterranean woodland belt
7 – in accordance with the mediterranean, atlantic evergreen belt
0 – indifferent

WZ-scale – moisture requirement (0-11)

0 – in accordance with extremely dry habitats
1 – in accordance with habitats with long dry period
2 – in accordance with dry habitats
3 – in accordance with semi-dry habitats
4 – in accordance with semi-humid habitats
5 – in accordance with fresh habitats
6 – in accordance with moderately moist soils
7 – in accordance with moist-wet soils
8 – in accordance with wet soils
9 – in accordance with inundated soils
10 – in accordance with wetland, floating vegetation
11 – in accordance with water bodies, water plants

RZ-scale – soil requirement, soil reaction (1-5, 0)

1 – in accordance with acidic soils, calciphobe plants
2 – in accordance with moderately acidic soils
3 – in accordance with neutral soils
4 – in accordance with slightly basic soils
5 – in accordance with basic soils, basiphilous plants
0 – indifferent
 

Data source and citation:

Zólyomi B., Baráth Z., Fekete G., Jakucs P., Kárpáti I., Kovács M. & Máthé I. (1967): Einreihung von 1400 Arten der ungarischen Flora in ökologische Gruppén nach TWR-Zahlen. Fragm. Bot. Mus. Hist. Nat. Hung. 4: 101-142.

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