J
Jaana Leppälammi-Kujansuu
Researcher at University of Helsinki
Publications - 15
Citations - 1449
Jaana Leppälammi-Kujansuu is an academic researcher from University of Helsinki. The author has contributed to research in topics: Picea abies & Litter. The author has an hindex of 10, co-authored 15 publications receiving 1054 citations.
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Journal ArticleDOI
Redefining fine roots improves understanding of below-ground contributions to terrestrial biosphere processes
M. Luke McCormack,Ian A. Dickie,David M. Eissenstat,Timothy J. Fahey,Christopher W. Fernandez,Dali Guo,Heljä-Sisko Helmisaari,Erik A. Hobbie,Colleen M. Iversen,Robert B. Jackson,Jaana Leppälammi-Kujansuu,Richard J. Norby,Richard P. Phillips,Kurt S. Pregitzer,Seth G. Pritchard,Boris Rewald,Marcin Zadworny +16 more
TL;DR: It is demonstrated how order-based and functional classification frameworks improve the understanding of dynamic root processes in ecosystems dominated by perennial plants.
Journal ArticleDOI
Adaptive root foraging strategies along a boreal-temperate forest gradient.
Ivika Ostonen,Marika Truu,Heljä-Sisko Helmisaari,Martin Lukac,Martin Lukac,Werner Borken,Elena Vanguelova,Douglas L. Godbold,Krista Lõhmus,Ulrich Zang,Leho Tedersoo,Jens-Konrad Preem,Katrin Rosenvald,Jürgen Aosaar,Kęstutis Armolaitis,Jane Frey,Naima Kabral,Mai Kukumägi,Jaana Leppälammi-Kujansuu,Antti-Jussi Lindroos,Päivi Merilä,Ülle Napa,Pekka Nöjd,Kaarin Parts,Veiko Uri,Mats Varik,Jaak Truu +26 more
TL;DR: A concept of absorptive fine root foraging strategies involving both qualitative and quantitative changes in the root-mycorrhiza-bacteria continuum along climate and soil C : N gradients is suggested.
Journal ArticleDOI
Fine root longevity and carbon input into soil from below- and aboveground litter in climatically contrasting forests
Jaana Leppälammi-Kujansuu,Lasse Aro,Maija Salemaa,Karna Hansson,Dan Berggren Kleja,Heljä-Sisko Helmisaari +5 more
TL;DR: In this paper, the authors studied the belowground C input from the fine root litter of trees and understorey vegetation in relation to their aboveground litterfall in two Norway spruce (Picea abies L.) stands located in northern and southern Finland.
Journal ArticleDOI
Fine root turnover and litter production of Norway spruce in a long-term temperature and nutrient manipulation experiment
Jaana Leppälammi-Kujansuu,Maija Salemaa,Dan Berggren Kleja,Sune Linder,Heljä-Sisko Helmisaari +4 more
TL;DR: Fine roots in the WFI treatment had the lowest median longevity and from three to fourfold higher below-ground litter production compared to WI, FI or I - higher soil temperature increased the litter input particularly into the mineral soil.
Journal ArticleDOI
Inter-annual variability of precipitation constrains the production response of boreal Pinus sylvestris to nitrogen fertilization
Hyungwoo Lim,Ram Oren,Ram Oren,Sari Palmroth,Sari Palmroth,Pantana Tor-ngern,Tommy Mörling,Torgny Näsholm,Tomas Lundmark,Heljä-Sisko Helmisaari,Jaana Leppälammi-Kujansuu,Sune Linder +11 more
TL;DR: In this paper, the effects of long-term N-fertilization on NPP and that of longterm carbon storing organs (NPPS) in a Pinus sylvestris forest on sandy soil, a wide-ranging forest type in the boreal region.