Das Projekt "Geooekosystem-Modell der Testflaehe Nenzlinger Weide: Umweltueberwachung des Naehrstoff- und Wasser-Haushaltes in der Boden-Vegetations-Atmosphaere" wird vom Umweltbundesamt gefördert und von Universität Basel, Departement Geographie, Geographisches Institut durchgeführt. The abiotic components of plant and animal habitats are represented by the process-correlation-systemmodel (PCSM) of the geoecosystem. This is based on an ecofunctional inventory of the abiotic parameters in the ecosystem and is thus essential for several biological projects of the biodiversity program. The investigation's focal point is the nutrient and water budget in the pedosphere as the 'geoecological boundary layer'. The ecological variables are being recorded locally and areally using biogeographical and landscape ecological environment monitoring techniques. Model components are micro climate (particularly heat budget), vegetation, soil fauna, and soil (energy, water, and nutrient budget). Object is the spatial and temporal assessment of ecological interactions between soil fauna and grassland successions as well as between micro climate and water and solute movement in the soil. Models of the topic dimension are to be transferred to larger areas showing a different set of physiogeographic factors. This is achieved by using methods of mapping, GIS and remote sensing. This enables to surmount the specialized compartment-approaches of ecosystem research. This can only be realized by the scheduled cooperation in the biodiversity program of the University of Basel.
Das Projekt "Mikrometeorologische Messung des Strahlungs- und Energiehaushaltes an ausgewaehlten Standorten der Nenzlinger Weide und die Integration von Daten von Fernerkundungsplattformen" wird vom Umweltbundesamt gefördert und von Universität Basel, Institut für Meteorologie, Klimatologie und Fernerkundung durchgeführt. The aims of the project: - Fundamental interrelations between boundary layer meteorolgy and biodiversity, - Extraction of ecologically relevant latent infomation from satellite data. The energy balance station (5m pole) at the Nenzlinger Weide was installed and works operationally. A high resoluted precipitation measurement network (24 stations) was built up. In summer 94 energy balance measurements, comparing different methods, were carried out. To have an idea about the spatial and the temporal differentiation of the NDVI, measurements at different meadows in the Swiss Jura were done. The solar radiation and the PAR as well as the radiation budget were calculated for the Nenzlinger Weide and a surrounding of 20km with the help of a radiation model and satellite data (LANDSAT-TM). The special position of the testsite, an optimal offer of shortwave radiation and PAR, could be shown. As well as the variability of the radiation budget, the key function for the heat flux, for several hundred W/m2 for small distances. Within an interdisciplinary biodiversity project the micrometeorological conditions at selected test sites in the Swiss Jura Mountains are studied. Standard micrometeorological measurements are combined with remote sensing techniques from satellite platforms (LANDSAT-TM, NOAA-AVHRR) and surface/airborne thermal camera (AGEMA) to investigate the spatio-temporal modification of the energetic conditions in the area.