Articles | Volume 20, issue 21
https://doi.org/10.5194/bg-20-4455-2023
https://doi.org/10.5194/bg-20-4455-2023
Research article
 | 
08 Nov 2023
Research article |  | 08 Nov 2023

Sap flow and leaf gas exchange response to a drought and heatwave in urban green spaces in a Nordic city

Joyson Ahongshangbam, Liisa Kulmala, Jesse Soininen, Yasmin Frühauf, Esko Karvinen, Yann Salmon, Anna Lintunen, Anni Karvonen, and Leena Järvi

Related authors

Simulating heat and CO2 fluxes in Beijing using SUEWS V2020b: sensitivity to vegetation phenology and maximum conductance
Yingqi Zheng, Minttu Havu, Huizhi Liu, Xueling Cheng, Yifan Wen, Hei Shing Lee, Joyson Ahongshangbam, and Leena Järvi
Geosci. Model Dev., 16, 4551–4579, https://doi.org/10.5194/gmd-16-4551-2023,https://doi.org/10.5194/gmd-16-4551-2023, 2023
Short summary

Related subject area

Biogeochemistry: Air - Land Exchange
Impact of meteorological conditions on the biogenic volatile organic compound (BVOC) emission rate from eastern Mediterranean vegetation under drought
Qian Li, Gil Lerner, Einat Bar, Efraim Lewinsohn, and Eran Tas
Biogeosciences, 21, 4133–4147, https://doi.org/10.5194/bg-21-4133-2024,https://doi.org/10.5194/bg-21-4133-2024, 2024
Short summary
Monitoring cropland daily carbon dioxide exchange at field scales with Sentinel-2 satellite imagery
Pia Gottschalk, Aram Kalhori, Zhan Li, Christian Wille, and Torsten Sachs
Biogeosciences, 21, 3593–3616, https://doi.org/10.5194/bg-21-3593-2024,https://doi.org/10.5194/bg-21-3593-2024, 2024
Short summary
Compound soil and atmospheric drought (CSAD) events and CO2 fluxes of a mixed deciduous forest: the occurrence, impact, and temporal contribution of main drivers
Liliana Scapucci, Ankit Shekhar, Sergio Aranda-Barranco, Anastasiia Bolshakova, Lukas Hörtnagl, Mana Gharun, and Nina Buchmann
Biogeosciences, 21, 3571–3592, https://doi.org/10.5194/bg-21-3571-2024,https://doi.org/10.5194/bg-21-3571-2024, 2024
Short summary
Similar freezing spectra of particles on plant canopies as in air at a high-altitude site
Annika Einbock and Franz Conen
EGUsphere, https://doi.org/10.5194/egusphere-2024-2067,https://doi.org/10.5194/egusphere-2024-2067, 2024
Short summary
The influence of plant water stress on vegetation–atmosphere exchanges: implications for ozone modelling
Tamara Emmerichs, Yen-Sen Lu, and Domenico Taraborrelli
Biogeosciences, 21, 3251–3269, https://doi.org/10.5194/bg-21-3251-2024,https://doi.org/10.5194/bg-21-3251-2024, 2024
Short summary

Cited articles

Ahongshangbam, J., Kulmala, L., and Järvi, L.: Datasets of sap flow, meteorological, leaf gas measurements in urban green areas in Helsinki, Zenodo, https://doi.org/10.5281/zenodo.7525319, 2023. a
Atkin, O. K. and Tjoelker, M. G.: Thermal acclimation and the dynamic response of plant respiration to temperature, Trends Plant Sci., 8, 343–351, https://doi.org/10.1016/S1360-1385(03)00136-5, 2003. a
Bowler, D. E., Buyung-Ali, L., Knight, T. M., and Pullin, A. S.: Urban greening to cool towns and cities: A systematic review of the empirical evidence, Landscape Urban Plan., 97, 147–155, https://doi.org/10.1016/j.landurbplan.2010.05.006, 2010. a
Brack, C. L.: Pollution mitigation and carbon sequestration by an urban forest, Environ. Pollut., 116, S195–S200, https://doi.org/10.1016/S0269-7491(01)00251-2, 2002. a
Bush, S. E., Pataki, D. E., Hultine, K. R., West, A. G., Sperry, J. S., and Ehleringer, J. R.: Wood anatomy constrains stomatal responses to atmospheric vapor pressure deficit in irrigated, urban trees, Oecologia, 156, 13–20, https://doi.org/10.1007/s00442-008-0966-5, 2008. a
Download
Short summary
Urban vegetation is important for removing urban CO2 emissions and cooling. We studied the response of urban trees' functions (photosynthesis and transpiration) to a heatwave and drought at four urban green areas in the city of Helsinki. We found that tree water use was increased during heatwave and drought periods, but there was no change in the photosynthesis rates. The heat and drought conditions were severe at the local scale but were not excessive enough to restrict urban trees' functions.
Altmetrics
Final-revised paper
Preprint