The development of element cycles after glacier retreat in the subtropical Gongga Mountains, Sichuan, China. Cooperation with Prof. Dr. Yanhong Wu, Institute of Mountain Hazards and Environment, Chinese Academy of Science, China. - Since 2012.
Research in the Geomorphology and Soil Science group
Scientific basis to determine the critical nitrogen concentrations in the soil solution ("critical limit", Ncrit) for the indicator plants of protected biomes. Subproject 2 of Lot 3 of the public announcement “Analysis and Evaluation of the Nitrogen Budget of Baden-Württemberg”. This project is jointly conducted with Prof. Dr. Sebastian Schmidtlein. We are cooperating with Dr. Markus Bernhardt (Friedrich Schiller University Jena) and Dr. Heike Puhlmann (Forest Research Institute of Baden-Württemberg, Freiburg). – Since 2017.
Stable hydrogen isotopes in soil constituents: New insights into the formation processes of organic matter and clay minerals (DFG, Wi1601/25-1). This project is a cooperation with Prof. Dr. Yvonne Oelmann (Eberhard Karls University Tübingen). – Since 2017.
Compound-specific stable isotope ratios (δ13C, δ2H) of oxygen-containing polycyclic aromatic hydrocarbons (OPAHs) as tracers of their formation in the environment: Method validation and case studies (DAAD P.R.I.M.E.). Cooperation with Dr. Ian Bull (School of Chemistry University of Bristol, UK). – Since 2016.
Transformations of polycycles and oxy-polycycles between the emission source and terrestrial sinks. Cooperation with Prof. Dr. Yongming Han, State Key Laboratory of Loess & Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences in Xi’an – since 2011.
Stable metal isotopes as tools to assess enrichment and sources of trace metals in soils and crops to improve sustainability of agricultural systems (MISOTRAG, SNF 406940_145195/1). Use of stable Cd, Cu and Zn isotope ratios to determine the sources of the accumulation and transformation of these metals in agricultural production systems and their uptake into crops. Project in the frame of the Swiss National Research Program NRP 69 (“Healthy Nutrition and Sustainable Food Production”) together with Prof. Dr. Emmanuel Frossard (ETHZ) and Dr. Armin Keller (Agroscope Reckenholz-Tännikon). In cooperation with Dr. Andreas Gubler (Agroscope Reckenholz-Tännikon) and Prof. Dr. Mark Rehkamper (Imperial College London). - Since 2013. The project is realized at the University of Bern, Switzerland and headed by Prof. Dr. Wolfgang Wilcke (IfGG-KIT).
Effects of plant diversity on the soil nutrient cycle (SNF 200021E_131195/1) in the framework of the research unit “Exploring mechanisms underlying the relationship between biodiversity and ecosystem functioning“ together with Prof. Dr. Yvonne Oelmann, University of Tübingen, Germany (FOR1451). – The project started in 2002.
Publicly available project data can be accessed via the data system Pangaea (keyword: Jena Experiment).
Response of element cycles in a tropical mountain rain forest to environmental and land-use change. Associated project of the Platform for Biodiversity and Ecosystem Monitoring and Research. – Since 1998.
Investigating arsenic transformations in soils using isotopically labeled (13C and 2H) organo-arsenic compounds. Marie Curie IEF Fellowship BIOMETA (FP7-PEOPLE-2012-326736). – Since 2013. The project is realized at the University of Bern, Switzerland and headed by Prof. Dr. Wolfgang Wilcke (IfGG-KIT).