Improved soil carbon calculations for climate change applications
The Finnish Meteorological Institute is constantly developing the Yasso model with its collaborators. The now published extensions improve the reliability of the results in the model's application areas and expand the model's usage possibilities in scientific research.
The new extensions are:
improved Yasso20 model version
graphical user interface for Yasso07, Yasso15, and Yasso20 models
description of the carbon-13 isotope cycle
effect of mycorrhiza on the soil carbon cycle.
All material of the extensions is freely available on the Finnish Meteorological Institute's website.
The Yasso model is widely used internationally
Several countries use the Yasso model to calculate soil carbon emissions and sinks in their greenhouse gas inventories. These inventories are essential information sources for climate policy.
Yasso is the soil module of the German Max Planck Institute's climate system model and many other calculation systems. Thus, it is used in global climate change scenarios and climate impact assessments of forest and cropland treatment options.
The Yasso model has been used in about 200 research articles worldwide.
Senior researcher Toni Viskari, Finnish Meteorological Institute, tel. +358 50 351 1524, email@example.com
Research Professor Jari Liski, Finnish Meteorological Institute, tel. +358 40 748 5088, firstname.lastname@example.org
Research coordinator Åsa Stam, Finnish Meteorological Institute, tel. +358 50 531 3477, email@example.com
Descriptions of the extensions:
Viskari, T., Pusa, J., Fer, I., Repo, A., Vira, J., and Liski, J. 2022 Calibrating the soil organic carbon model Yasso20 with multiple datasets, Geosci. Model Dev., 15, 1735–1752. https://doi.org/10.5194/gmd-15-1735-2022
Mäkelä, J., Arppe, L., Fritze, H., Heinonsalo, J., Karhu, K., Liski, J., Oinonen, M., Straková, P., and Viskari, T. 2022. Implementation and initial calibration of carbon-13 soil organic matter decomposition in Yasso model, Biogeosciences, 19, 4305–4313. https://doi.org/10.5194/bg-19-4305-2022
Huang, W., van Bodegom, P.M., Viskari, T., Liski, J., and Soudzilovskaia, N.A. 2022. Implementation of mycorrhizal mechanisms into soil carbon model improves the prediction of long-term processes of plant litter decomposition. Biogeosciences, 19, 1469–1490. https://doi.org/10.5194/bg-19-1469-2022
Huang, W., van Bodegom, P.M., Declerck, S., Heinonsalo, J., Cosme, M., Viskari, T., Liski, J. & Soudzilovskaia, N.A. 2022. Mycelium chemistry differs markedly between ectomycorrhizal and arbuscular mycorrhizal fungi. Commun Biol 5, 398. https://doi.org/10.1038/s42003-022-03341-9