Das Projekt "Work Package II - Material processing at Haean Basin scale: The role of hyporheic exchange and the riparian zone in NO3 and DOC export from catchments" wird vom Umweltbundesamt gefördert und von Universität Bayreuth, Fachgruppe Geowissenschaften, Bayreuther Zentrum für Ökologie und Umweltforschung (BayCEER), Lehrstuhl für Hydrologie durchgeführt. The hydrogeochemical dynamics in mountainous areas of the Korean Peninsula are mainly driven by a monsoon-type climate. To examine the interplay between hydrological processes and the mobilization and subsequent transport and export of nitrate and DOC from catchments, a field study was initiated in the Haean catchment in north-eastern South Korea under highly variable hydrologic conditions. In order to identify nitrate and DOC source areas, a subcatchment (blue dragon river) within the Haean basin, which includes different types of landuses (forest, dry land farming, and rice paddies), was selected. In 2009, high frequency surface water samples were collected at several locations during summer storm events. A similar but more comprehensive sampling routine was completed in 2010. In order to investigate the groundwater level fluctuations relative to the hydraulic potentials, a piezometer transect was installed across a second order stream of the subcatchment. The results so far suggest deep groundwater seepage to the aquifer with practically no base flow contributions to the stream in the mid-elevation range of the catchment. In 2009 the focus of research was within the subcatchment, in 2010 additionally a second piezometer transect was installed at a third order stream in the lower part of the catchment (main stem of the Mandae River) where more dynamic groundwater/surface water interactions are assumed due to expected higher groundwater levels in this part of the basin. In order to investigate these interactions piezometers equipped with temperature sensors and pressure transducers were installed directly into the river bed. Based on the observed temperature time series and the hydraulic potentials the water fluxes between the groundwater and the river can be calculated using the finite-difference numerical code, VS2DH. VS2DH solves Richard s equation for variably-saturated water flow, and the advection-conduction equation for energy transport. The field data collected at the second piezometer transect suggest that the investigated river reach exhibits primarily losing surface conditions throughout most of the year. Gaining groundwater conditions at the river reach are evident after monsoonal extreme precipitation events. At the transect streambed aggradation and degradation due to bedload transport was observed. Significant erosion has been reported throughout the catchment after extreme events. Results indicate that the event-based changes in streambed elevation, is an additional control on groundwater and surface water exchange. The streambed flux reversals were found to occur in conjunction with cooler in-stream temperatures at potential GW discharge locations. The export of nitrate and DOC were found to be variable in time and strongly correlated to the hydrologic dynamics, i.e. the monsoon and pre- and post-monsoon hydrological conditions. usw.
Das Projekt "Kommentierung der Paragraphen 324 ff. StGB in Rudolphi, Hans-Joachim (Gesamtredaktion), Systematischer Kommentar zum Strafgesetzbuch, Loseblatt" wird vom Umweltbundesamt gefördert und von Universität Osnabrück, Fachbereich Rechtswissenschaften, Institut für Wirtschaftsstrafrecht - Prof.Dr. Hero Schall durchgeführt.
Das Projekt "Teilvorhaben B: Planungsinstrumente zum Flächenmanagement und Hemmnisse im Verwaltungshandeln" wird vom Umweltbundesamt gefördert und von Technische Universität Dortmund, Fachgebiet Immobilienentwicklung durchgeführt. Ziel des Verbundvorhabens ist es, ein Modellkonzept zu entwerfen, in dessen Rahmen öffentliches Planungshandeln im Flächenmanagement mit dem privatwirtschaftlichen Portfoliomanagement großer institutioneller Grundstückseigentümer abgestimmt wird. Auf diesem Wege soll zum einen das aus volkswirtschaftlicher Sicht öffentlich Erforderliche getan und gleichzeitig betriebswirtschaftliche Entwicklungstätigkeit gefördert werden.