Environmental Engineering Reference
In-Depth Information
(a)
(b)
Figure 2.3. (a) Casino Weiher Halde, Kelmis, Belgium. At this site, the former Altenberg
mine which operated from Roman times until its closure in 1882. Despite legal
protection, the site is now dominated by shopping lots and industrial premises. On
the small fragment that remains, Silene vulgaris, Minuartia verna subsp. hercynica, Festuca
ovina subsp. guestphalica, Viola calaminaria, Armeria maritima s.l. and Thlaspi caerulescens
occur abundantly. (b) Spoil heaps east of Hettstedt, Germany, from the mining period
1780 1815 now set in an agricultural landscape bear only a sparse vegetation cover
mostly of highly specialised ecotypes of Silene vulgaris. In the background, the conical
tailings tip is from the twentieth century; there is only a cover of ruderal vegetation
at its base due to the hostile edaphic conditions. Photos: A. Van der Ent.
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