Heljä‐Sisko Helmisaari

Below- and above-ground biomass, production and nitrogen use in Scots pine stands in eastern Finland

Heljä‐Sisko Helmisaari, Kirsi Makkonen, Seppo Kellomäki et al. · Forest Ecology and Management · 2002 · 303 citations

Natural Resources, Ecology, Forestry +17

Fine root biomass in relation to site and stand characteristics in Norway spruce and Scots pine stands

Heljä‐Sisko Helmisaari, John Derome, Pekka Nöjd et al. · Tree Physiology · 2007 · 288 citations · Full text

Natural Resources, Plant Biology, Plant Sciences +17

Sustainable utilisation of forest biomass for energy—Possibilities and problems: Policy, legislation, certification, and recommendations and guidelines in the Nordic, Baltic, and other European countries

Inge Stupak, Antti Asikainen, Mats Jonsell et al. · Biomass and Bioenergy · 2007 · 243 citations

Natural Resources, Environmental Policy, Forestry +17

Variation in fine root biomass of three European tree species: Beech ( <i>Fagus sylvatica</i> L.), Norway spruce ( <i>Picea abies</i> L. Karst.), and Scots pine ( <i>Pinus sylvestris</i> L.)

Leena Finér, Heljä‐Sisko Helmisaari, Krista Lõhmus et al. · Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology · 2007 · 225 citations · Full text

Agriculture, Ecology, Plant Sciences +13

Fine-root turnover rates of European forests revisited: an analysis of data from sequential coring and ingrowth cores

Ivano Brunner, Mark R. Bakker, Robert G. Björk et al. · Plant and Soil · 2012 · 224 citations · Full text

Natural Resources, Ecology, Forestry +14