20022019
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Personal profile

Description of research and teaching

My research area is biogeochemistry, especially carbon and nutrient dynamics in forest ecosystems in relation to environmental changes and forest management. Many of my projects have been large ecosystem-level studies. The projects have dealt with nutrient dynamics and management on forested mineral soils, pools and fluxes of carbon on mineral soils and peatlands, artificial groundwater recharge on forested eskers and remediation of heavy-metal polluted sites.

My present research projects concentrate on fine root dynamics, in particular the role of roots in carbon cycling, the long-term soil changes and ecosystem recovery from chemical and physical load as well as the sustainability of forest bioenergy.

Teaching: https://blogs.helsinki.fi/forestsoil/teaching/

Education/Academic qualification

Forest sciences, Dr. (MMT), University of Eastern Finland (UEF)

Keywords

  • 4112 Forestry
  • Forest soil science
  • Forest ecosystem biogeochemistry
  • Root ecology

International and National Collaboration Publications and projects within past five years.

Publications 2002 2019

Fine root longevity and below- and aboveground litter production in a boreal Betula pendula forest

Ding, Y., Leppälammi-Kujansuu, J. & Helmisaari, H-S., 1 Jan 2019, In : Forest Ecology and Management. 431, p. 17-25 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Hiili ja ravinteet järvestä metsämaahan-tekopohjaveden muodostamisen biogeokemialliset hyödyt ja haitat

Helmisaari, H-S. M., Kaarakka, L. M., Korpela, L., Lindroos, A-J., Nieminen, T. M., Nöjd, P. & Smolander, A., 9 Jan 2019, Pro Terra: Ihmiskunta tarvitsee maaperätieteitä, X Maaperätieteiden Päivien abstraktit. Manninen, N., Pennanen, T., Rankinen, K., Salo, T., Heinonsalo, J. & Soinne, H. (eds.). 2019 ed. Helsinki: Suomen Maaperätieteiden seura, Helsingin yliopisto, Maataloustieteiden Osasto, Vol. 75. p. 35-36

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

File

Leaching of heavy metals and barium from forest roads reinforced with fly ash

Lindroos, A-J., Ryhti, K. M., Kaakkurivaara, T., Uusitalo, J. & Helmisaari, H-S. M., 25 Apr 2019, In : Silva Fennica. 53, 2, 10088.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Root growth dynamics of three beech (Fagus sylvatica L.) provenances

Zeleznik, P., Westergren, M., Bozik, G., Eler, K., Bajc, M., Helmisaari, H-S. M., Horvath, A. & Kraigher, H., 1 Jan 2019, In : Forest Ecology and Management. 431, p. 35-43 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Roots and rhizospheres in forest ecosystems: Recent advances and future challenges

Meier, I. C., Brunner, I., Godbold, D., Helmisaari, H-S. M., Ostonen, I., Soudzilovskaia, N. A. & Prescott, C. E., 1 Jan 2019, In : Forest Ecology and Management. 431, p. 1-5 5 p.

Research output: Contribution to journalEditorialScientific

Projects 2008 2019

Activities 2007 2019

Plant and Soil (Journal)

Heljä-Sisko Helmisaari (Reviewer)
5 Mar 2019

Activity: Publication peer-review and editorial work typesPeer review of manuscripts

X Maaperätieteiden päivät

Heljä-Sisko Helmisaari (Speaker: Chair)
9 Jan 2019

Activity: Participating in or organising an event typesOrganisation and participation in conferences, workshops, courses, seminars

Swedish University of Agricultural Sciences (External organisation)

Heljä-Sisko Helmisaari (Board member)
Jan 2018Mar 2018

Activity: Membership typesMembership or other role in review committee

Assessment committee member (opponent) of doctoral thesis

Heljä-Sisko Helmisaari (Opponent)
2 Mar 2018

Activity: Examination typesOpponent of doctoral dissertation

Press / Media

Interview for Lännen Media

Heljä-Sisko Helmisaari

08/12/2018

1 media contribution

Press/Media: Press / Media

Asiantuntijana Aamu-TV:ssä

Heljä-Sisko Helmisaari

30/09/2016

1 media contribution

Press/Media: Press / Media

MOT 9.1.2012: Tekovesikauhu

Heljä-Sisko Helmisaari

09/01/2012

1 media contribution

Press/Media: Press / Media

Vesistö huomioitava metsälannoituksissa

Heljä-Sisko Helmisaari

09/08/2011

1 media contribution

Press/Media: Press / Media

Hakkuutähteet ja puuston kasvu

Heljä-Sisko Helmisaari

30/05/2011

1 media contribution

Press/Media: Press / Media