Responses of plants and ecosystems to global environmental change

Physiological Plant Ecology
Plants are fundamental components of the earth system. Their ability to assimilate atmospheric CO2 and to transpire H2O drives the biogeochemical cycles in ecosystems and determines as such the provision of ecosystem goods and services that we as people depend on. In the Physiological Plant Ecology Group at ETH Zurich we investigate the physiological responses of plants to their environmental in order to understand how plants govern the function of ecosystems in a changing world. Our research operates at different scales that range from the leaf to the landscape level and links plant ecophysiology to plant population dynamics and ecosystem biogeochemistry.


  • A first assessment of the impact of the extreme 2018 summer drought on Central European forests
    Schuldt B; Buras A; Arend M; Vitasse Y; Beierkuhnlein, C; Damm, A; Gharun, M; Grams, TEE; Hauck, M; Hajek, P; Hartmann, H; Hiltbrunner, E; Hoch, G; Holloway-Phillips, M; Koerner, C; Larysch, E; Lubbe, T; Nelson, DB; Rammig, A; Rigling, A; Rose, L; Ruehr, NK; Schumann, K; Weiser, F; Werner, C; Wohlgemuth, T; Zang, CS; Kahmen, A
    Basic And Applied Ecology 2020, 10.1016/j.baae.2020.04.003
  • Soil nutrients and lowered source:sink ratio mitigate effects of mild but not of extreme drought in trees
    Schoenbeck, L; Gessler, A; Schaub, M Rigling, A; Hoch, G; Kahmen A, Li MH
    Environmental And Experimental Botany,  DOI: 10.1016/j.envexpbot.2019.103905  JAN 2020
  • The O-18-signal transfer from water vapour to leaf water and assimilates varies among plant species and growth forms
    Lehmann, MM.; Goldsmith, GR.; Mirande-Ney, C; Weigt, RB.; Schoenbeck, L; Kahmen, A; Gessler A; Siegwolf RTW; Saurer M
    Plant Cell And Environment,  DOI: 10.1111/pce.13682, FEB 2020
  • Temperature and moisture variability in the eastern Mediterranean region during Marine Isotope Stages 11-10 based on biomarker analysis of the Tenaghi Philippon peat deposit
    Ardenghi, N; Mulch, A; Koutsodendris, A; Pross, J; Kahmen, A; et al.
    Quaternary Science Reviews,  DOI: 10.1016/j.quascirev.2019.105977, Published: DEC 1 2019
  • Invasive knotweed has greater nitrogen-use efficiency than native plants: evidence from a N-15 pulse-chasing experiment
    Parepa, M; Kahmen, A; Werner, RA.; Fischer, M; Bossdorf, O
    Oecologia 191(2): 389-396, DOI: 10.1007/s00442-019-04490-1, Published: OCT 2019
  • Data do not support large-scale oligotrophication of terrestrial ecosystems
    Hiltbrunner, E; Korner, C; Meier, R; Braun, S; Kahmen, A
    NATURE ECOLOGY & EVOLUTION, 3 (9):1285-1286; 10.1038/s41559-019-0948-5 SEP 2019
  • Bioirrigation: a common mycorrhizal network facilitates the water transfer from deep-rooted pigeon pea to shallow-rooted finger millet under drought
    Singh, D; Mathimaran, N; Boller, T; Kahmen, A
    PLANT AND SOIL, 440 (1-2):277-292; 10.1007/s11104-019-04082-1 JUL 2019
  • Contrasting stomatal sensitivity to temperature and soil drought in mature alpine conifers
    Peters, RL; Speich, M; Pappas, C; Kahmen, A; von Arx, G; Pannatier, EG; Steppe, K; Treydte, K; Stritih, A; Fonti, P
    PLANT CELL AND ENVIRONMENT, 42 (5):1674-1689; 10.1111/pce.13500 MAY 2019
  • Complementary water uptake depth of Quercus petraea and Pinus sylvestris in mixed stands during an extreme drought
    Bello, J; Hasselquist, NJ; Vallet, P; Kahmen, A; Perot, T; Korboulewsky, N
    PLANT AND SOIL, 437 (1-2):93-115; 10.1007/s11104-019-03951-z APR 2019
  • Innate and learned olfactory attraction to flowering plants by the parasitoid Cotesia rubecula (Marshall, 1885) (Hymenoptera: Braconidae): Potential impacts on conservation biological control
    Fataar, S; Kahmen, A; Luka, H
    BIOLOGICAL CONTROL, 132 16-22; 10.1016/j.biocontrol.2019.01.009 MAY 2019
  • Water relations of drought-stressed temperate trees benefit from short drought-intermitting rainfall events
    Dietrich, L; Kahmen, A
    AGRICULTURAL AND FOREST METEOROLOGY, 265 70-77; 10.1016/j.agrformet.2018.11.012 FEB 15 2019
  • H-2-enrichment of cellulose and n-alkanes in heterotrophic plants
    Cormier, MA; Werner, RA; Leuenberger, MC; Kahmen, A
    OECOLOGIA, 189 (2):365-373; 10.1007/s00442-019-04338-8 FEB 2019
  • No role for xylem embolism or carbohydrate shortage in temperate trees during the severe 2015 drought
    Dietrich, L; Delzon, S; Hoch, G; Kahmen, A
    JOURNAL OF ECOLOGY, 107 (1):334-349; 10.1111/1365-2745.13051 JAN 2019
  • Species-specific differences in water uptake depth of mature temperate trees vary with water availability in the soil
    Brinkmann, N.; Eugster, W.; Buchmann, N.; Kahmen, A.
    PLANT BIOLOGY, 21 (1):71-81; 10.1111/plb.12907 JAN 2019
  • Effects of plant productivity and species richness on the drought response of soil respiration in temperate grasslands
    Burri, S; Niklaus, PA; Grassow, K; Buchmann, N; Kahmen, A
    PLOS ONE 13(12) Article Number: e0209031, DOI: 10.1371/journal.pone.0209031, DEC 21 2018
  • Losing half the conductive area hardly impacts the water status of mature trees
    Dietrich, L; Hoch, G; Kahmen, A; Korner, C
    SCIENTIFIC REPORTS, 8 10.1038/s41598-018-33465-0 OCT 9 2018
  • Employing stable isotopes to determine the residence times of soil water and the temporal origin of water taken up by Fagus sylvatica and Picea abies in a temperate forest
    Brinkmann, N; Seeger, S; Weiler, M; Buchmann, N; Eugster, W; Kahmen, A
    NEW PHYTOLOGIST, 219 (4):1300-1313; 10.1111/nph.15255 SEP 2018
  • Daily stem diameter variations can predict the canopy water status of mature temperate trees
    Dietrich, Lars; Zweifel, Roman; Kahmen, Ansgar
    TREE PHYSIOLOGY   Volume: 38   Issue: 7   Pages: 941-952  DOI: 10.1093/treephys/tpy023 JUL 2018
  • H-2-fractionations during the biosynthesis of carbohydrates and lipids imprint a metabolic signal on the H-2 values of plant organic compounds
    Cormier, Marc-Andre; Werner, Roland A.; Sauer, Peter E.; Grocke, DR; Leuenberger, MC; Wieloch, T; Schleucher, J; Kahmen, A
    NEW PHYTOLOGIST   Volume: 218   Issue: 2   Pages: 479-491 DOI: 10.1111/nph.15016   Published: APR 2018
  • Rapid atmospheric transport and large-scale deposition of recently synthesized plant waxes 
    Nelson, Daniel B.; Ladd, S. Nemiah; Schubert, Carsten J.; et al. 
Ansgar Kahmen Univ Basel

Prof. Dr. Ansgar Kahmen
University of Basel
Dept of Environmental Sciences
4056 Basel

Tel: +41 (0)61 207 35 71

Research topics

  • The responses of plants and ecosystems to environmental change
  • Biological archives as long-term indicators for the effects of environmental change on plants and ecosystems
  • The effects of plant diversity for ecosystem functions
  • Competition and complementary use of nutrients by plants and microbes
  • Development of stable isotope tools for ecological research



  • The stable isotope composition of plant-derived biomarkers for paleohydrological research