Spatio-temporal patterns of Q(10) values for improved modelling of heterotrophic soil respiration (B03)

• Subject Area: Soil Sciences
• Term: from 2007 to 2018
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 15232683

The Community Land Model (CLM) as part of TerrSysMP assumes a fixed temperature dependency of heterotrophic soil respiration. Our findings indicate, however, a variable temperature dependency as a function of texture, porosity, moisture, and nutrient status of the soil. We plan to scale the influence of these factors in relation to land-use and soil unit. We will test the found relations for selected parts of the Rur catchment using proximal and remote soil sensing, backed up by lab-based mid-infrared spectroscopy and soil incubations with our RESPICOND system. Potential improvements will be implemented in CLM.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 32: Patterns in Soil-Vegetation-Atmosphere Systems: Monitoring, Modelling and Data Assimilation
• Applicant Institution: Rheinische Friedrich-Wilhelms-Universität Bonn
• Project Heads: Professor Dr. Wulf Amelung; Privatdozent Dr. Gerhard Welp