Montag, 23. Mai 2011

Article of the week - Field Trip to Lake Uemmingen

This weekend I've participated in a field trip to the “Ümminger See” (Lake Ümmingen) in Bochum, Western Germany. The field trip was organized by the “Bochumer Botanischer Verein” (Botanical Association of Bochum; check out Google, because I don't know if linking is allowed) and the “NABU”. It was similar to my field trip to Lake Unterbach two weeks ago but also a little bit different. So, in this “Article of the Week”, I want to give you an overlook of this area.

Lake Ümmingen is located at Langendreer, a urban district of Bochum, a town in Western Germany, which is also part of the famous Ruhr Region (German: Ruhrgebiet), one of Germanys former most important industrial areas. Its current area is about 11 hectares.

Lake Ümmingen was originally a mill pond; later it became a kind of storage pool for the polluted mine water of the coal mine “Zeche Vollmond” (mine “full moon”). After the closure of the mine, Lake Ümmingen was excavated and expanded to become a recreation area.

Basically, today's Vegetation of Lake Ümmingen can be summarized into two main parts: firstly the surrounding vegetation and secondly the shore vegetation. It hast to be said, that the main part of these vegetations is not naturally but planted. Anyway, it's a n interesting mixture of species.

I. Surrounding vegetation of Lake Ümmingen

a) General overview

The surrounding vegetation is dominated by high or medium high scrubs and also meadows. Here we find some very typical species of this vegetation types, although not all of them are native to Germany.

The following list will give you an example of the species, you can find in the surrounding area of Lake Ümmingen.

b) List of species (sample)

Species
Family
Corylus columa L.
Betulaceae
Phalaris arundinacea L.
Poaceae
Alopecurus pratensis L.
Poaceae
Epipactis helleborine (L).Crantz.
Orchidaceae
Geranium dissectum L.
Geraniaceae
Cornus sanguinea L.
Cornaceae
Cornus alba L.
Cornaceae
Persicaria amphibia (L.) Delarbre
Polygonaceae
Glechoma hederacea L.
Lamiaceae
Rubus macrophyllus Weihe & Nees
Rosaceae
Rubus caesius L.
Rosaceae

c) Gallery
Persicaria amphibia (L.) Delarbre (land form)

Phalaris arundinacea L.

Alopecurus pratensis L.

Cornus sanguinea L.

Epipactis helleborine (L).Crantz.

II. Shore vegetation of Lake Ümmingen

a) General overview

The majority of the lake shore (especially the north shore) was created artificially; that means the shores were fortified with concrete walls, which makes it difficult for a natural vegetation. Anyway, at the south shore, you can find some exception; especially the small still waters with its reeds.

b) List of species (sample)

Species
Family
Iris pseudacorus L.
Iridaceae
Juncus compressus Jacq.
Juncaceae
Populus x canadensis Moench.
Salicaceae
Salix alba ssp. Vitellina L.
Salicaceae
Atriplex prostrata C. D. Bouche ex. DC.
Amaranthaceae
Typha angustifolia L.
Typhaceae
Calystegia sepium (L). R. Br.
Convovulaceae
Schoenoplectus lacustris (L.) Palla
Cyperaceae
Acorus calamus L.
Acoraceae
Quercus palustris Muenchh.
Fagaceae
Pulicaria dysenterica (L.) Bernh.
Asteraceae
Juglans regia L.
Juglandaceae
Phragmites australis (Cav.) Trin. Ex Steud.
Poaceae
Typha latifolia L.
Typhaceae
Heracleum mantegazzianum Somm. & Lev.
Apiaceae
Matteuccia struthiopteris (L.) Tod.
Onocleaceae
Inula helenium L.
Asteraceae
Hypericum perforatum L
Clusiaceae
Bromus inermis Leyss.
Poaceae
Amoracia rusticana G. Gaertn, B. Mey. & Scherb.
Brassicaceae
Rosa multiflora Thunb.
Rosaceae
Carex hirta L.
Cyperaceae

c) Gallery
Inula helenium L. (look at the white nerve)

Matteuccia struthiopteris (L.) Tod.

Phragmites australis (Cav.) Trin. Ex Steud.

Populus x canadensis Moench.

Quercus palustris Muenchh.

Schoenoplectus lacustris (L.) Palla

Typha latifolia L

Acorus calamus L.
.
Atriplex prostrata C. D. Bouche ex. DC.

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