Kaarakka, L., Cornett, M., Domke, G., Ontl, T., Dee, L. Improved forest management as a natural climate solution: A review. Ecological Solutions and Evidence.

Titus, B.D., Brown, K., Helmisaari, H-S., Vanguelova, E., Stupak, I., Evans, A., Clarke, C., Guidi, C., Bruckman, V., Varnagiryte-Kabasinskiene, I., Armolaitis, K., de Vries, W., Hirai, K., Kaarakka, L., Hogg, K., Reece, R. Sustainable forest biomass: a review of current residue harvesting guidelines. Energy, Sustainability and Society 11 (10).


Kaarakka, L., Smolander, A., Lindroos, A.-J., Nojd, P., Korpela, L., Nieminen, T.M., Helmisaari, H.-S. Sprinkling infiltration as an artificial groundwater recharge method – Long-term effects on boreal forest soil, tree growth and understory vegetation. Forest Ecology and Management 448, 240–248.


Kaarakka, L., Vaittinen, J., Marjanen, M., Hellsten, S., Kukkola, M., Saarsalmi, A., Palviainen, M., Helmisaari, H-S. Stump harvesting in Picea abies stands: soil surface disturbance and biomass distribution of the harvested stumps and roots. Forest Ecology and Management 425, 27–34.


Kaarakka, L., Hyvönen, R., Strömgren, M., Palviainen, M., Persson, T., Olsson, B.A., Launonen, E., Vegerfors-Persson, B., Helmisaari, H-S. Carbon and nitrogen pools and mineralization rates in boreal forest soil after stump harvesting. Forest Ecology and Management 377, 61–70. 

Hyvönen, R., Kaarakka, L., Leppälammi-Kujansuu, J., Olsson, B.A., Palviainen, M., Vegerfors-Persson, B., Helmisaari, H.-S. Effects of stump harvesting on soil C and N stocks and vegetation 8–13 years after clear-cutting. Forest Ecology and Management 371, 23–32. 


Helmisaari, H-S., Kaarakka, L., Olsson, B.  Increased utilization of different tree parts for energy purposes in the Nordic countries. Scandinavian Journal of Forest Research 29(4): 312–322. 

Kaarakka, L., Tamminen, P., Saarsalmi, A., Kukkola, M., Helmisaari, H-S., Burton A.J. Effects of repeated whole-tree harvest on soil properties and tree growth in a Norway spruce (Picea abies (L.) Karst.) stand. Forest Ecology and Management 313, 180–187. 

Helmisaari, H-S., Kaarakka, L. Nutrient management for sustainable production of energy biomass in boreal forests, p. 81-94. In: Kellomäki S. et al. (eds). Forest Bioenergy Production, Springer, New York. 

(Photo credit: Lilli Kaarakka)

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