Articles | Volume 20, issue 21
https://doi.org/10.5194/bg-20-4455-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-20-4455-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Sap flow and leaf gas exchange response to a drought and heatwave in urban green spaces in a Nordic city
Joyson Ahongshangbam
CORRESPONDING AUTHOR
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Helsinki Institute of Sustainability Science, University of Helsinki, Finland
Liisa Kulmala
Climate System Research, Finnish Meteorological Institute, Helsinki, Finland
Institute for Atmospheric and Earth System Research/Forest Sciences, Viikki Plant Science Centre (ViPS), Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
Jesse Soininen
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Yasmin Frühauf
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Esko Karvinen
Climate System Research, Finnish Meteorological Institute, Helsinki, Finland
Yann Salmon
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Institute for Atmospheric and Earth System Research/Forest Sciences, Viikki Plant Science Centre (ViPS), Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
Anna Lintunen
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Institute for Atmospheric and Earth System Research/Forest Sciences, Viikki Plant Science Centre (ViPS), Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
Anni Karvonen
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Leena Järvi
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Helsinki Institute of Sustainability Science, University of Helsinki, Finland
Viewed
Total article views: 4,698 (including HTML, PDF, and XML)
Cumulative views and downloads
(calculated since 14 Feb 2023)
| HTML | XML | Total | BibTeX | EndNote | |
|---|---|---|---|---|---|
| 3,404 | 1,162 | 132 | 4,698 | 159 | 164 |
- HTML: 3,404
- PDF: 1,162
- XML: 132
- Total: 4,698
- BibTeX: 159
- EndNote: 164
Total article views: 3,452 (including HTML, PDF, and XML)
Cumulative views and downloads
(calculated since 08 Nov 2023)
| HTML | XML | Total | BibTeX | EndNote | |
|---|---|---|---|---|---|
| 2,632 | 715 | 105 | 3,452 | 128 | 139 |
- HTML: 2,632
- PDF: 715
- XML: 105
- Total: 3,452
- BibTeX: 128
- EndNote: 139
Total article views: 1,246 (including HTML, PDF, and XML)
Cumulative views and downloads
(calculated since 14 Feb 2023)
| HTML | XML | Total | BibTeX | EndNote | |
|---|---|---|---|---|---|
| 772 | 447 | 27 | 1,246 | 31 | 25 |
- HTML: 772
- PDF: 447
- XML: 27
- Total: 1,246
- BibTeX: 31
- EndNote: 25
Viewed (geographical distribution)
Total article views: 4,698 (including HTML, PDF, and XML)
Thereof 4,617 with geography defined
and 81 with unknown origin.
Total article views: 3,452 (including HTML, PDF, and XML)
Thereof 3,393 with geography defined
and 59 with unknown origin.
Total article views: 1,246 (including HTML, PDF, and XML)
Thereof 1,224 with geography defined
and 22 with unknown origin.
| Country | # | Views | % |
|---|
| Country | # | Views | % |
|---|
| Country | # | Views | % |
|---|
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
1
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
1
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
1
Cited
10 citations as recorded by crossref.
- Carbon sequestration in different urban vegetation types in Southern Finland L. Thölix et al.
- Lawns and meadows in urban green space – a comparison from perspectives of greenhouse gases, drought resilience and plant functional types J. Trémeau et al.
- Urban shrubs have greater transpiration than natural ones due to their fast climate adaptation: A global synthesis R. Yang et al.
- Impact of urban trees on carbon dioxide exchange: Mechanistic pathways, environmental controls, and feedback Z. Wang et al.
- Calibrating primary crop parameters to capture undersown species impacts Q. Bell et al.
- Comparative evaluation of machine learning models integrated with optimization algorithms for daily transpiration estimation in citrus orchards of dry-hot valley region in China M. Wu et al.
- Quantifying the hydraulic safety of urban trees: Do street environments impose greater strain than parks? A. Dekel et al.
- Controls on tree transpiration dynamics in an urban environment M. Anys & M. Weiler
- Soil respiration across a variety of tree-covered urban green spaces in Helsinki, Finland E. Karvinen et al.
- Future climate impacts on carbon sequestration dynamics across urban ecosystem types in Finnish cities A. Koiso-Kanttila et al.
10 citations as recorded by crossref.
- Carbon sequestration in different urban vegetation types in Southern Finland L. Thölix et al.
- Lawns and meadows in urban green space – a comparison from perspectives of greenhouse gases, drought resilience and plant functional types J. Trémeau et al.
- Urban shrubs have greater transpiration than natural ones due to their fast climate adaptation: A global synthesis R. Yang et al.
- Impact of urban trees on carbon dioxide exchange: Mechanistic pathways, environmental controls, and feedback Z. Wang et al.
- Calibrating primary crop parameters to capture undersown species impacts Q. Bell et al.
- Comparative evaluation of machine learning models integrated with optimization algorithms for daily transpiration estimation in citrus orchards of dry-hot valley region in China M. Wu et al.
- Quantifying the hydraulic safety of urban trees: Do street environments impose greater strain than parks? A. Dekel et al.
- Controls on tree transpiration dynamics in an urban environment M. Anys & M. Weiler
- Soil respiration across a variety of tree-covered urban green spaces in Helsinki, Finland E. Karvinen et al.
- Future climate impacts on carbon sequestration dynamics across urban ecosystem types in Finnish cities A. Koiso-Kanttila et al.
Saved (final revised paper)
Latest update: 02 May 2026
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.
Urban vegetation is important for removing urban CO2 emissions and cooling. We studied the...
Altmetrics
Final-revised paper
Preprint