Associate Professor in Biogeophysics

Research interests

Modeling impact of climate, land use and other human activities on functioning of terrestrial ecosystems, e.g.

• Modeling impact of forest management on N leaching from forest ecosystems
• Impact of climate change on soil C and N dynamics - assesment of model uncertainty for models of different scales and complexity
• Model decription of the functioning of micro organisms and soil fauna for C sequestration 
• Development of the model Tracey to calculate accumulation and spreading of elements/compounds in trace concentrations, such as radionuclides, in a terrestrial ecosystems
• Scaling issues - studying processes at different scales from plot, hill-slope, field/forest, catchment to regio
  

Ongoing and recent projects

IMPRESS (Intregating Microorganisms into Predictive Models of Carbon sequestration) 2012-2017 is a Formas funded strong research environment. The core consists of 10 researchers from SLU and Örebro University. 

CLEO - Climate change and Environmental Objectives

A research programme funded by the Swedish EPA and carried out by a national consortium of IVL; Lund Univ., SLU, SMHI, Stockholm Uin., Univ. of Gotenborg. 2010-

Verification of Swedish climate report – Evaluation of four models for estimating climatic impact on soil carbon storage FoMa-project 2009 - Annemieke Gärdenäs (PI), Carina Ortiz, Johan Stendahl, Göran Ågren (SLU) & Jari Liski (Syke, Finland)

Critical load of nitrogen – test of concepts and models on long-term forest experiments FoMa 2009- Annemieke Gärdenäs (PI), Martin Rappe George, Dan Berggren Kleja, Mona Högberg (SLU),

 Tracey – a simulation model of radionuclide fluxes in soil-plant system for long-term assessment of groundwater contamination. SKB funded 2006-2008. Annemieke Gärdenäs (PI, SLU), Henrik Eckersten (SLU), André Reinlert (ESRI S-group), David Gustafsson, Per-Erik Jansson (KTH), Per-Anders Ekström, Rodolfo Avila (Facilia Co.), Maria Greger (Stockholm Univ.) for report click here

N leaching after final felling of previous N fertilized forests,Formas funded 2008-2010 Eva Ring (SkogForsk, PI), Annemieke Gärdenäs, Martin Rappe George, Linnea Hansson

Securing dry season flow in the northwestern highlands of Ethiopia:  How much can forest management help as the climate changes? Sida funded 2007-2009 Kevin Bishop (PI), Annemieke Gärdenäs, Solomon Gebreyohannis (SLU), Per-Erik Melander (present: Teagasc Ireland), Woldemak Bekwet, Addis Ababa University, Ethiopia, Jan Seibert Dept of Geography, University of Zurich, Switzerland  

CV (Curriculum vitae is found here)

Selected publications (complete list)
(for Web of Science include both A. Gärdenäs and A.I. Gärdenäs as well as A. Reurslag)

Karhu K., Gärdenäs A.I., Heikkinen J., Vanhala P., Liski J. 2012. Carbon stock of agricultural soil and organic amendments - comparison of model-simulations to measurements. Geoderma 189–190, 606–616

Bengtsson, S.B., Rosén K., Eriksson J., and Gärdenäs A.I., 2012. Influence of development stage of spring oilseed rape and spring wheat on interception of wet-deposited radiocaesium and radiostrontium. Atmospheric Environment 60, 227-233

Rappe-George, M.O., Gärdenäs, A.I., Berggren Kleja, D. 2012. The impact of four decades of annual nitrogen addition on dissolved organic matter in a boreal forest soil. Biogeosciences Special Issue: Nitrogen and global change. (accepted). 

Gärdenäs A.I.,  Ågren G.I.,  Bird J.A., Clarholm M., Hallin S. Ineson Ph., Kätterer Th., Knicker H., Nilsson S.I., Näsholm T., Ogle S.,  Paustian K., Persson T., Stendahl J., 2011. Knowledge gaps in soil carbon and nitrogen interactions - From molecular to global scale. Soil Bio. & Biochem. 43, 702-717.

Gebrehiwot S.G., Ilstedt U., Gärdenäs A.I., Bishop K. 2011. Hydrological characterization of watersheds in the Blue Nile Basin. Hydrology & Earth System Scs 15, 11-20.

Ortiz C.A, Karltun E. Stendahl J., Gärdenäs A.I., Ågren A.I., 2011. Modelling soil carbon build-up in Swedish coniferous forest soils - an uncertainty analysis of parameters and model estimates. Ecol. Modelling 222, 3020– 3032

Peltoniemi, M. Thürig, E. Ogle S., Palosuo T., Shrumpf M., Wützler Th., Butterbach-Bahl K., Chertov, Komarov O., Mikhailov A., Gärdenäs A., Perry, Ch. Liski, J. Smith, P. Mäkipää. R. 2007. Models in country scale carbon accounting of forest sites. Silva Fennica 42.

Gärdenäs, A. I., Šimunek, J. Jarvis, N. & Van Genuchten, M. Th. 2006. Two-dimensional modelling of preferential water flow and pesticide transport from a tile-drained field. Journal of Hydrology 329. 647-660. 

A.I. Gärdenäs, J.W. Hopmans, B.R. Hanson & J. Šimůnek. 2005. Two-dimensional modeling of nitrate leaching for various fertigation scenarios under micro-irrigation. Agricultural Water Management.   74: 219-242.

Šimunek, J., Van Genuchten, M Th., Jarvis, N. & Gärdenäs, A. 2003. Review and comparison of models for describing non-equilibrium and preferential flow and transport in the vadose zone. J. Hydrologogy 272: 14 – 35. 

Gärdenäs, A., Eckersten, H., Reinlert, A. Gustafsson, D, Ekström P-A., Greger M., Jansson P-E. & Avila R. 2009. Modelling long-term accumulation of radionuclides in the biosphere originating from continuous groundwater contamination – a sensitivity analysis.  SKB-report TR-09-24

Gärdenäs, A. I. 1998. Soil organic matter in forest soils - effects of climate and water balance. Doctoral thesis. Acta Universitatis Agriculturae Sueciae. Agraria 85. ISBN 91-576-5530-8.