Carbon sequestration in different urban vegetation types in Southern Finland

Thölix, Laura; Backman, Leif; Havu, Minttu; Karvinen, Esko; Soininen, Jesse; Trémeau, Justine; Nevalainen, Olli; Ahongshangbam, Joyson; Järvi, Leena; Kulmala, Liisa

doi:https://doi.org/10.5194/bg-22-725-2025

Articles | Volume 22, issue 3

https://doi.org/10.5194/bg-22-725-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-22-725-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 3

Research article

|

10 Feb 2025

Research article |

| 10 Feb 2025

Carbon sequestration in different urban vegetation types in Southern Finland

Laura Thölix, Leif Backman, Minttu Havu, Esko Karvinen, Jesse Soininen, Justine Trémeau, Olli Nevalainen, Joyson Ahongshangbam, Leena Järvi, and Liisa Kulmala

Supplement

https://doi.org/10.5194/bg-22-725-2025-supplement

Data sets

Model results L. Thölix et al. https://doi.org/10.57707/fmi-b2share.0cb5e547dd2f48da89c1b690604dd3d0

Manual GPP of lawn J. Trémeau et al. https://doi.org/10.23728/fmi-b2share.920c1e5f08a74a6d9dfcb3a08cfc6734

Soil temperature, moisture and respiration E. Karvinen https://doi.org/10.57707/fmi-b2share.f7ba414bfd3642168ac38a95835b06bc

Manual GPP and sapflow of trees J. Ahongshangbam https://doi.org/10.5281/zenodo.7525319

LAI O. Nevalainen https://doi.org/10.5281/zenodo.5993292

NEE L. Järvi https://doi.org/10.57707/fmi-b2share.e638f63a3e6f45eb890e964726154964

Automatic GPP L. Kulmala https://doi.org/10.57707/fmi-b2share.840b8a856abf43e18b3fbb329eed5305

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Short summary

Cities aim for carbon neutrality and seek to understand urban vegetation's role as a carbon sink. Direct measurements are challenging, so models are used to estimate the urban carbon cycle. We evaluated model performance at estimating carbon sequestration in lawns, park trees, and urban forests in Helsinki, Finland. Models captured seasonal and annual variations well. Trees had higher sequestration rates than lawns, and irrigation often enhanced carbon sinks.