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Table 1 Classification of the moisture indices

From: Diatoms as an indicator for tile drainage flow in a German lowland catchment

Category

Code

Diatom habitat

Diatom occurrence

1

AqZo

Aquatic zone

Never, or only very rarely, occurring outside water bodies

2

AqRi

Aquatic/Riparian transition zone

Mainly occurring in water bodies, sometimes on wet places

3

RiZo

Riparian zone

Mainly occurring in water bodies, also rather regularly on wet and moist places

4

RiUp

Riparian/Upland transition zone

Mainly occurring on wet and moist or temporarily dry places

5

UpZo

Upland zone

Nearly exclusively occurring outside water bodies