Contrasting drought legacy effects on gross primary  productivity in a mixed versus pure beech forest

Yu, Xin; Orth, René; Reichstein, Markus; Bahn, Michael; Klosterhalfen, Anne; Knohl, Alexander; Koebsch, Franziska; Migliavacca, Mirco; Mund, Martina; Nelson, Jacob A.; Stocker, Benjamin D.; Walther, Sophia; Bastos, Ana

doi:https://doi.org/10.5194/bg-19-4315-2022

Articles | Volume 19, issue 17

https://doi.org/10.5194/bg-19-4315-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-19-4315-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 17

Research article

| Highlight paper

|

12 Sep 2022

Research article | Highlight paper |

| 12 Sep 2022

Contrasting drought legacy effects on gross primary productivity in a mixed versus pure beech forest

Xin Yu, René Orth, Markus Reichstein, Michael Bahn, Anne Klosterhalfen, Alexander Knohl, Franziska Koebsch, Mirco Migliavacca, Martina Mund, Jacob A. Nelson, Benjamin D. Stocker, Sophia Walther, and Ana Bastos

Supplement

https://doi.org/10.5194/bg-19-4315-2022-supplement

Data sets

Fluxnet Product (https://meta.icos-cp.eu/objects/WiZ3ePi2Bvxugr_HNZoONQtR) A. Knohl, O. Kolle, L. Siebicke, F. Tiedemann, and Miscellaneous https://hdl.handle.net/11676/WiZ3ePi2Bvxugr_HNZoONQtR

FLUXNET2015 DE-Lnf Leinefelde (https://fluxnet.org/doi/FLUXNET2015/DE-Lnf) A. Knohl, F. Tiedemann, O. Kolle, E.-D. Schulze, P. Anthoni, W. Kutsch, M. Herbst, and L. Siebicke https://doi.org/10.18140/FLX/1440150

Supplementary data to Walther et al. (2021), A view from space on global flux towers by MODIS and Landsat: The FluxnetEO dataset (Landsat) (Version 1.0) (https://meta.icos-cp.eu/collections/TVBRaxjolfakaoov-JTup4pe) S. Walther, S. Besnard, J. A. Nelson, and U. Weber https://doi.org/10.18160/0Z7J-J3TR

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This study significantly contributes to alleviating the data scarcity of drought legacy effects on ecosystem photosynthesis in temperate deciduous forests with a novel machine learning approach. This is probably the first time that drought legacies on ecosystem carbon fluxes are quantified using eddy-covariance data. The study reported that the reduction in photosynthesis due to drought legacy effects was of comparable magnitude to the concurrent drought effects at the studied sites. This study thus emphasizes the importance of drought legacy effects and provides a novel analytical method to quantify legacy effects elsewhere.