Environmental Engineering Reference
In-Depth Information
(a)
(b)
Figure 2.2.
(a) Viola calaminaria, Festuca ovina subsp. guestphalica and Thlaspi caerulescens at
the ancient mining site of Schmalgraf, Belgium. (b) Armeria maritima s.l., Viola calaminaria
and Thlaspi caerulescens at what was one of the richest metallophyte habitats of
northwestern Europe at Rabotrath, Belgium. Most of the metallophyte communities
have disappeared in the last 4 years since the land was taken into agricultural
production. Photos: A. Van der Ent.
