26
Table 3 Four-level classification scheme for the Flemish nature reserve De Westhoek
Level 1
Level 2
Level 3
Level 4
P
Pioneer vegetations
on sand
PS
Pioneer vegetations
on sand
PS-a
Pioneer vegetations of
dynamic dunes
Ammopare Marram (Ammophila arenaria)
Festujun
Rush-leaved fescue (Festuca juncifolia)
Pion_mix
Mixed vegetation or other dominant
species on sand
L
Low non-woody
vege-tations
LM Moss dunes
LM-t
Moss dunes
Torturur
Syntrichia (Tortula) ruraliformis
LH
Herb- dominated
vegetations of fixed
dunes
LH-g
Herb- dominated
vegetations on dry sand
Grassveg
Low grassland vegetation on dry sand
LH-j
Herb- dominated
vegetations on wet sand
Slackveg
Low dune slack vegetation
H
High non-woody
vege-tations
HT
Tall grasses and
herbs
HT-c
Tall grasses
Calamepi
Wood small-reed (Calamagrostis
epigejos)
HT-u
Tall herbs (nettles,
thistles)
Tallherb
Tall herbs (nettles, thistles)
HF
Helophyte
vegetations
HF-f
Helophyte vegetations
Phragaus
Common reed (Phragmites australis)
S
Shrubs and bushes
SL
Low shrubs
SL-s
Creeping willow
Salixrep
Creeping willow (Salix repens)
SL-i
Burnet rose
Rosa_pim
Burnet rose (Rosa pimpinellifolia)
SL-r
Rubus
Rubusfru
Bramble (Rubus fruticosus
agg.)
J. Vanden Borre et al.