Dr. Timo Gebhardt

CV

2022-2025	PostDoctoral Researcher at the Assistant Professorship of Forest and Agroforest Systems, Technical University of Munich (TUM)
2020-2022	PostDoctoral Researcher at the Professorship of Land Surface-Atmosphere Interactions, Group of Ecophysiology of Plants (TUM)
2019-2020	PostDoctoral Researcher at the Professorship of Ecophysiology of Plants (TUM)
2018-2019	PostDoctoral Researcher, Group of Forest Ecology for Temperate Zones (Georg August University of Göttingen) and the Professorship of Ecophysiology of Plants (TUM)
2008-2018	Doctoral student , Group of Forest Management and Forest Ecology for Temperate Zones, Georg-August-University of Göttingen, (Dissertation title: „ Picea abies and climate change- does increasing thinning intensity prevent drought stress”)
2002-2008	Dipl. Ing. silv. Univ., M.Sc. of Forestry, (Thesis title: „13C/12C- Markierung von CO2 im Boden-Methodenentwicklung und Nachweis im CO2-Efflux des Stammes an Picea abies“)

Publications

Dluhosch D, Gebhardt T, Annighöfer P, Grams TEE, Hafner BD. (2026) Shallow rooted understory plants use hydraulically redistributed water by mature oak trees during drought. Frontiers in Forests and Global Change, 8, 1742600. DOI: https://doi.org/10.3389/ffgc.2025.1742600

Dluhosch D, Asgharinia S, Renzi F, Hesse BD, Grams TEE, Gebhardt T. (2025). Calibration of a new Transient Thermal Dissipation based IoT-Sensor for xylem sap flow density measurements for three different temperate tree species. Tree Physiology, April. DOI: https://doi.org/10.1093/treephys/tpaf047

Hikino, K., Hesse, B. D., Gebhardt, T., Hafner, B. D., Buchhart, C., Baumgarten, M., Häberle, K. ‐H., & Grams, T. E. E. (2025). Drought legacy in mature spruce alleviates physiological stress during recurrent drought. Plant Biology. DOI: https://doi.org/10.1111/plb.70039

Gebhardt T, Hesse B, Hikino K, Kolovrat K, Hafner B, Grams T, Häberle K (2023) Repeated summer drought changes the radial xylem sap flow profile in mature Norway spruce but not European beech. Agricultural and Forest Meteorology 329: 109285. 10.1016/j.agrformet.2022.109285

Hesse B, Gebhardt T, Hafner B, Hikino K, Reitsam A., Gigl M., Dawid C, Häberle K, Grams, T (2023). Physiological recovery of tree water relations upon drought release—response of mature beech and spruce after five years of recurrent summer drought. Tree Physiology, 43(4), 522–538. https://doi.org/10.1093/treephys/tpac135

Hesse B D, Hikino K, Gebhardt T, Buchhart C, Dervischi V, Goisser M, Pretzsch H, Häberle K, Grams T E E (2024). Acclimation of mature spruce and beech to five years of repeated summer drought – The role of stomatal conductance and leaf area adjustment for
water use. Science of the Total Environment, 951, 175805, DOI: https://doi.org/10.1016/j.scitotenv.2024.175805

Knüver, T., Bär, A., Ganthaler, A., Gebhardt, T., Grams, T. E. E., Häberle, K. H., Hesse, B. D., Losso, A., Tomedi, I., Mayr, S., & Beikircher, B. (2022) Recovery after long-term summer drought: Hydraulic measurements reveal legacy effects in trunks of Picea abies but not in Fagus sylvatica. Plant Biology 24(7): 1240–1253. DOI: 10.1111/plb.13444