Dead wood plays a substantial role in forest ecosystem functioning. However, the amount and dynamics of dead wood in the forests of Northern Eurasia are poorly understood. Here we present a database of field measurements of dead wood, collected from published sources and aggregated data from the Russian national forest inventory. The structure of dead wood by its components includes snags, logs, stumps, and the dry branches of living trees The database is intended to be used to assess the dead wood volume and the amount of dead wood in carbon units as part of the carbon budget calculation of forests at different scales. The database is a supplementary material in the following journal paper. Shvidenko, A.; Mukhortova, L.; Kapitsa, E.; Kraxner, F.; See, L.; Pyzhev, A.; Gordeev, R.; Fedorov, S.; Korotkov, V.; Bartalev, S.; Schepaschenko D. A Modelling System for Dead Wood Assessment in the Forests of Northern Eurasia. Forests 2023, 14, 45. https://doi.org/10.3390/f14010045

Funding: The Siberian part of this research was carried out within the framework of the state task of the V.N. Sukachev Institute of Forest SB RAS (Registration number 122110300009-5) and the European part – within the state task of the Saint Petersburg State Forest Technical University (Registration number 122110900053-2), both provided under framework of the Research and Education Center "Carbon in Ecosystems: Monitoring" in accordance with the order of the Government of the Russian Federation No. 2515-p dated 2 September 2022 in order to implement an innovative project of national importance aimed at creating a unified national system for monitoring climate-active substances.