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Tervetuloa käyttämään Jukuria, Luonnonvarakeskuksen (Luke) avointa julkaisuarkistoa. Jukurissa on tiedot Luken julkaisutuotannosta. Osa julkaisuista on vapaasti ladattavissa. Luken muodostaneiden tutkimuslaitosten aikaisemmasta julkaisutuotannosta osan tiedot ovat järjestelmässä jo nyt ja kattavuus paranee jatkuvasti.

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Cross-scale convergence in the carbon balance of managed boreal forests in Northern Sweden
Peichl, Matthias; Martínez-García, Eduardo; Chi, Jinshu; Kljun, Natascha; Klosterhalfen, Anne; Larson, Johannes; Laudon, Hjalmar; Lundmark, Tomas; Monteil, Guillaume; Nilsson, Mats B.; Sathyanadh, Anusha; Scholze, Marko; Wallerman, Jörgen; Zhao, Peng
Agricultural and forest meteorology (Elsevier, 2026)
Boreal forests are globally important carbon (C) sinks, but strategies for maximising their climate benefit remain under debate. Major uncertainties in this discussion arise from contrasting sink-source estimates, which largely emanate from inherent limitations of standard measurement techniques to distinct spatio-temporal scales. Here, we use a spatially-nested measurement framework that integrates bottom-up (forest-plot inventory and chamber-based fluxes) and top-down (eddy-covariance; atmospheric observations and atmospheric transport modelling) approaches to reconcile the C balance of actively managed boreal forests in Northern Sweden across plot-, ecosystem-, landscape-, and regional scales during 2016–2018. We found that 3-year mean estimates of the net ecosystem production (NEP) across plot-, landscape-, and regional scales did not differ significantly, converging into a mean (± 95 % confidence interval) C sink of 118 ± 27 g C m-2 yr-1. We also noted a convergence across these scales for the 3-means of the NEP components, i.e., gross primary production (908 ± 48 g C m-2 yr-1) and ecosystem respiration (790 ± 40 g C m-2 yr-1). However, estimates of the inter-annual variations in NEP and its components were inconsistent among most scales and measurement approaches. Furthermore, our results indicate a scale-dependency in the NEP response to the 2018 European summer drought, with a greater reduction of NEP observed in bottom-up compared to top-down estimates. Thus, this study consolidates the C sink-strength of managed boreal forests and advocates the need for cross-scale assessments to constrain forest C cycle-climate feedbacks.
Mercury biomagnification patterns in boreal and subarctic lake food webs
Piro, Alexander J.; Kozak, Natalia; Keva, Ossi; Eerola, Emmi S.; Kulo, Katja; Ruokonen, Timo J.; Weckström, Jan; Malinen, Tommi; Kiljunen, Mikko; Taipale, Sami J.; Kahilainen, Kimmo K.
Environmental research (Elsevier, 2025)
Climate change and land use are significant pressures on northern environments with the potential to influence mercury (Hg) biomagnification in lake food webs. How this process may differ along a north–south gradient, defined by simultaneously changing environmental characteristics, has not been thoroughly explored. Lake food webs, from primary producers to top predators, from 19 subarctic and 16 boreal lakes in Finland were tested for total Hg (THg) biomagnification through the linear regression of THg content (log10[THg]) and trophic level derived from δ15N. Climate, productivity, lake, and catchment variables were combined and assessed in a principal component analysis (PCA), and the first three principal components (PC) (71.1% of overall variability) were individually regressed with regional trophic magnification slopes (TMS), and mercury baselines ([THg] baseline). PC1 (climate–productivity), PC2 (water bodies), and PC3 (catchment metrics) were used in stepwise multiple linear regression models to assess the combined influence of PCs on regional TMS and [THg] baseline. Subarctic TMS and [THg] baseline were positively and negatively important, respectively, along a climate–productivity gradient (PC1). The stepwise model for subarctic TMS included PC1 and PC2, which explained 42.3% of variation, while the model for boreal TMS included all three PCs, which explained 35.4% of variation. The notable complexity of influences on boreal lakes makes modelling and future predictions challenging for this region, while the ongoing and simultaneous influences of climate warming and land use intensification in the subarctic region suggest lower TMS in the future.
The effect of sustainable management practices on the bacterial community in different European croplands
Cuartero, J.; Frey, B.; Zornoza, R.; Sánchez-Navarro, V.; Canfora, L.; Özbolat, O.; Egea-Cortines, M.; Farina, R.; Fritze, Hannu; Tuomivirta, Tero; Lång, Kristiina; Lemola, Riitta; Álvaro-Fuentes, J.; Huerta-Lwanga, E.; Pascual, J.A.; Ros, M.
Applied soil ecology (Elsevier, 2025)
Currently, monitoring Europe's soils is crucial since over 60 % of these soils are experiencing different types of degradation, which can potentially affect food production. Recently, a shift toward sustainable soil management has occurred. This shift away from conventional management is postulated to increase soil microbial diversity. However, it is unclear whether sustainable management can shift bacterial community across Europe. The Diverfarming project uses case studies to explore how diversified cropping systems with low-input practices can increase soil fertility, sequester carbon, and increase microbial diversity under differing climate conditions. To explore this, we employed metabarcoding sequencing to amplify the 16S rRNA region and soil chemical properties to assess the effects of organic amendment, rotation/intercropping and diversification with reduced tillage compared to conventional systems in different case studies. We observed that richness and Shannon index were mainly affected by climate and soil chemical properties but not by diversification. However, diversification changed the microbial community and enhanced potential microbial functionality, especially diversification of organic amendments, which also increase total organic carbon and nitrogen. We identified specific bacterial taxa associated with diversification, such as Rubrobacter, MND1, Pontibacter and Sphingomonas, highlighting the potential benefits of some species of these genera in diversification management ecosystems.
Policy Options in Peatland Conservation and Restoration: A Review of the UNEP Global Peatlands Assessment and Future Strategy for Global Governance
Gearey, Rosie; Reed, Mark S.; Kopansky, Dianna; Harris, Lorna I.; Kumar, Ritesh; Lång, Kristiina; Page, Susan; Parish, Faizal; Cadwaladr-Rimmer, Imogen; Scheel, Patrick
Mires and peat (International Mire Conservation Group and International Peatland Society, 2025)
In 2022, the United Nations Environment Programme (UNEP) Global Peatlands Initiative (GPI) published the first Global Peatland Assessment (GPA) examining current knowledge on the state of a newly approximated total extent (500 million hectares) of peatlands across all seven continents. The GPA launch at United Nations Framework Convention on Climate Change (UNFCCC) COP 27 in Sharm-el-Sheikh (Egypt) was a landmark moment for collaborative efforts to provide evidence on the roles of policymakers, academic research and community-led initiatives in supporting global peatland conservation and restoration. Following an assessment of key geographic regions, and of the policy and governance in place to protect, preserve and restore national peatlands, the GPA concluded that policy and governance on peatlands in their current (2022) state offered limited scope to address international agendas without a unilateral national policy approach. This article employs a narrative review methodology to draw together findings from the GPA and information from peer reviewed and grey literature to enable a more comprehensive systematic analysis, interpretation and contextualisation of evidence towards achieving an integration of peatland policy and governance worldwide. Although no new empirical results are presented, the process reveals three consistent challenges, namely: (i) contradictory and fragmented policy frameworks; (ii) insufficient and poorly structured finance for restoration; and (iii) limited inclusion of communities and rights holders. These challenges form the basis for three recommendations to guide the formulation of policy for global and national frameworks. The recommendations are: 1) a commitment to establish national policies that protect, preserve and restore peatlands and align with globally established policy; 2) to develop and provide transparent market policy and mechanisms that allow international financial investment to support gaps in national public funding for restoration, conservation and stewardship of intact and high-integrity peatlands; and 3) to develop and integrate a mechanism for public consultation on peatland conservation and restoration programmes to ensure that agency and concerns for local community, culture and economy are formally recognised at global level. We discuss the rationale for each recommendation in the context of the GPA, to demonstrate how each will contribute to ensuring sustainable peatland governance along with the protection and conservation of peatlands, as a part of future global efforts supported by the UNEP GPI.
Barriers to paludiculture and carbon markets: regulatory ambiguity and biomass yield risks on Finland's cutaway peatlands
Laasasenaho, Kari; Lauhanen, Risto; Maanavilja, Liisa; Aro, Lasse; Laakso, Tero; Miettinen, Mirella; Pappinen, Ari; Kuittinen, Suvi
Peatlands international : 3 (International peatland society, 2025)