Stream system restoration in a strip-mining region, eastern Germany: dimension, problems, and first steps

摘要: 1. Excessive open-cast mining of lignite in the Lower Lausitia, eastern Germany, resulted a new dimension field stream system restoration. Up to 1990, 740 km2 landscape had been destroyed, including topography and systems. Loss streams is also reaching far beyond actual open-pit boundaries due coherent groundwater depression covering 2100 km2. 2. Stream restoration takes place man-made which least part comprises unnatural conditions. A conceptual framework for specifying long-term goals environment established, adapted complexity comprehensive This includes extensive surveys structures assessment ecological functions post-mining areas. 3. Standards evaluate possible scenarios development must be explicit. Adapted specific constraints potential landscape, undirected abiotic processes should primary standard so-called natural recovery areas landscape. © 1998 John Wiley & Sons, Ltd.