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Biogenic soil structures: feedbacks between bioactivity and spatial heterogeneity of water storage and fluxes from plot to hillslope scale

Description: Das Projekt "Biogenic soil structures: feedbacks between bioactivity and spatial heterogeneity of water storage and fluxes from plot to hillslope scale" wird vom Umweltbundesamt gefördert und von Technische Universität Braunschweig, Institut für Geoökologie, Abteilung Umweltsystemanalyse durchgeführt. Soil structure determines a large part of the spatial heterogeneity in water storage and fluxes from the plot to the hillslope scale. In recent decades important progress in hydrological research has been achieved by including soil structure in hydrological models. One of the main problems herein remains the difficulty of measuring soil structure and quantifying its influence on hydrological processes. As soil structure is very often of biogenic origin (macropores), the main objective of this project is to use the influence of bioactivity and resulting soil structures to describe and support modelling of hydrological processes at different scales. Therefore, local scale bioactivity will be linked to local infiltration patterns under varying catchment conditions. At hillslope scale, the spatial distribution of bioactivity patterns will be linked to connectivity of subsurface structures to explain subsurface stormflow generation. Then we will apply species distribution modelling of key organisms in order to extrapolate the gained knowledge to the catchment scale. As on one hand, bioactivity influences the hydrological processes, but on the other hand the species distribution also depends on soil moisture contents, including the feedbacks between bioactivity and soil hydrology is pivotal for getting reliable predictions of catchment scale hydrological behavior under land use change and climate change.

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SupportProgram

Origin: /Bund/UBA/UFORDAT

Tags: Braunschweig ? Main ? Bodenstruktur ? Landnutzungsänderung ? Gebäude ? Hydrogeologie ? Infiltration ? Prognose ? Modellierung ? Messung ? Bewässerung ? Flächennutzung ? Geoökologie ? Hydrochemie ? Limnologie ? Siedlungswasserwirtschaft ? Wasserspeicher ? Bodenfeuchte ? Wasser ? Boden ? Wertermittlung ? Untergrund ? Forschung ? Hydrologie ? Klimawandel ? Lagerung ? Organismen ? Raumstruktur ? Standortbedingung ? GEHALT ? PROJEKT ? WICHTIG ? SONSTIG ? EINSATZ ? TEIL ? ERGEBNIS ? UEBERRESTE ? EIN ? Erlass [Recht] ? UNTER ? UNTERIRDISCH ? FOERDERN ? Art [Spezies] ? VERHAELTNIS ? FORTSCHRITT ? Integrierte Wasser-Ressourcen Bewirtschaftung ? NEU ? VERTEILUNG ?

Region: Lower Saxony

Bounding box: 9.16667° .. 9.16667° x 52.83333° .. 52.83333°

License: cc-by-nc-nd/4.0

Language: Deutsch

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Time ranges: 2011-01-01 - 2024-11-29

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