{"type": "FeatureCollection", "features": [{"id": "10.1016/j.scitotenv.2023.165421", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:57Z", "type": "Journal Article", "created": "2023-07-18", "title": "Soil GHG dynamics after water level rise \u2013 Impacts of selection harvesting in peatland forests", "description": "Managed boreal peatlands are widespread and economically important, but they are a large source of greenhouse gases (GHGs). Peatland GHG emissions are related to soil water-table level (WT), which controls the vertical distribution of aerobic and anaerobic processes and, consequently, sinks and sources of GHGs in soils. On forested peatlands, selection harvesting reduces stand evapotranspiration and it has been suggested that the resulting WT rise decreases soil net emissions, while the tree growth is maintained. We monitored soil concentrations of CO2, CH4, N2O and O2 by depth down to 80\u00a0cm, and CO2 and CH4 fluxes from soil in two nutrient-rich Norway spruce dominated peatlands in Southern Finland to examine the responses of soil GHG dynamics to WT rise. Selection harvesting raised WT by 14\u00a0cm on both sites, on average, mean WTs of the monitoring period being 73\u00a0cm for unharvested control and 59\u00a0cm for selection harvest. All soil gas concentrations were associated with proximity to WT. Both CH4 and CO2 showed remarkable vertical concentration gradients, with high values in the deepest layer, likely due to slow gas transfer in wet peat. CH4 was efficiently consumed in peat layers near and above WT where it reached sub-atmospheric concentrations, indicating sustained oxidation of CH4 from both atmospheric and deeper soil origins also after harvesting. Based on soil gas concentration data, surface peat (top 25/30\u00a0cm layer) contributed most to the soil-atmosphere CO2 fluxes and harvesting slightly increased the CO2 source in deeper soil (below 45/50\u00a0cm), which could explain the small CO2 flux differences between treatments. N2O production occurred above WT, and it was unaffected by harvesting. Overall, the WT rise obtained with selection harvesting was not sufficient to reduce soil GHG emissions, but additional hydrological regulation would have been needed.", "keywords": ["550", "218 Environmental engineering", "Forestry", "216", "15. Life on land", "Soil greenhouse gas emissions", "ta4112", "Continuous cover forestry", "13. Climate action", "218", "Gradient method", "216 Materials engineering", "11. Sustainability", "Peatland hydrology", "Norway spruce mire", "Climate smart forestry"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2023.165421"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2023.165421", "name": "item", "description": "10.1016/j.scitotenv.2023.165421", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2023.165421"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-11-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2022.120637", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:28Z", "type": "Journal Article", "created": "2022-11-25", "title": "How does management affect soil C sequestration and greenhouse gas fluxes in boreal and temperate forests? \u2013 A review", "description": "The global forest carbon (C) stock is estimated at 662 Gt of which 45% is in soil organic matter. Thus, comprehensive understanding of the effects of forest management practices on forest soil C stock and greenhouse gas (GHG) fluxes is needed for the development of effective forest-based climate change mitigation strategies. To improve this understanding, we synthesized peer-reviewed literature on forest management practices that canmitigate climate change by increasing soil C stocks and reducing GHG emissions. We further identified soil processes that affect soil GHG balance and discussed how models represent forest management effects on soil in GHG inventories and scenario analyses to address forest climate change mitigation potential.Forest management effects depend strongly on the specific practice and land type. Intensive timber harvesting with removal of harvest residues/stumps results in a reduction in soil C stock, while high stocking density and enhanced productivity by fertilization or dominance of coniferous species increase soil C stock. Nitrogenfertilization increases the soil C stock and N2O emissions while decreasing the CH4 sink. Peatland hydrology management is a major driver of the GHG emissions of the peatland forests, with lower water level corresponding to higher CO2 emissions. Furthermore, the global warming potential of all GHG emissions (CO2, CH4 and N2O) together can be ten-fold higher after clear-cutting than in peatlands with standing trees. The climate change mitigation potential of forest soils, as estimated by modelling approaches, accounts for stand biomass driven effects and climate factors that affect the decomposition rate. A future challenge is to account for the effects of soil preparation and other management that affects soil processes by changing soil temperature, soil moisture, soil nutrient balance, microbial community structure and processes, hydrology and soil oxygen concentration in the models. We recommend that soil monitoring and modelling focus on linkingprocesses of soil C stabilization with the functioning of soil microbiota.", "keywords": ["[SDE] Environmental Sciences", "330", "550", "Peatland hydrology management", "CLIMATE-CHANGE ADAPTATION", "WOOD ASH APPLICATION", "530", "Greenhouse gas", "SITE PREPARATION", "630", "12. Responsible consumption", "BELOW-GROUND CARBON", "11. Sustainability", "SDG 13 - Climate Action", "NITROGEN-FERTILIZATION", "SDG 15 - Life on Land", "2. Zero hunger", "PONDEROSA PINE", "GE", "PLANT LITTER DECOMPOSITION", "NORWAY SPRUCE", "04 agricultural and veterinary sciences", "15. Life on land", "004", "Forest fertilization", "Harvesting practices", "ORGANIC-MATTER", "Forest fire management", "13. Climate action", "[SDE]Environmental Sciences", "Forest soil carbon management", "0401 agriculture", " forestry", " and fisheries", "MICROBIAL COMMUNITY STRUCTURE", "GE Environmental Sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2022.120637"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2022.120637", "name": "item", "description": "10.1016/j.foreco.2022.120637", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2022.120637"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-02-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2012.01.036", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:32Z", "type": "Journal Article", "created": "2012-03-05", "title": "The Effect Of Clear Cutting On Podzolisation And Soil Carbon Dynamics In Boreal Forests (Middle Taiga Zone, Russia)", "description": "Abstract Boreal forests are one of the most important terrestrial carbon sink, and a large portion of C is allocated in soil for long-term storage. However forest harvesting may quickly affect soil carbon stocks and dynamics, especially where organic substances drive the soil-forming processes, such as in Podzols. To evaluate the effects of clear cutting on carbon dynamics and podzolisation process over a short time period, a pristine boreal forest (Komi Republic, Russian Federation) and a recently clear cut site (5\u00a0year-old) were selected. Soils are polygenic: podzolisation occurs within the clay-depleted eluvial horizon, formed by a previous lessivage process. Because podzolisation can start only after the eluvial horizon has reached a sort of threshold, bisequal soils allow to individuate comparable pedogenic conditions prior to anthropogenic disturbances. After harvesting, C storage tended to increase in the upper part of the soil profile (organic layer and podzolic sequum) from 2.2 to 5.0\u00a0kg\u00a0m\u2212\u00a02. The abundance of woody materials on the forest floor together with an increase in soil water saturation, discernible by the vegetation survey and iron fractionation, prevented litter degradation and allowed organic matter accumulation at the soil surface. Fulvic acids (FA) in the organic layer of the pristine site showed a low incorporation of polysaccharide and proteinaceous moieties, confirming a higher degradation of the humified fraction than at the clear cut site. The lack of disturbances allowed a selection of FA with the more oxidised and mobile fractions accumulating in the deeper horizons, as currently observed in Podzols. Almost no differences were instead found in the chemical composition of FA along the profile from the clear cut site. A larger portion of FA showed the tendency to migrate through the profile after clear cutting even below the Bhs horizon (C-fulvic acid/C-humic acid >\u00a01) with a marked increase in the FA-carbon stocks with respect to the pristine forest soil (0.66 and 0.30\u00a0kg\u00a0m\u2212\u00a02 down to 30\u00a0cm, respectively). Clear cutting also affected Al and Fe dynamics. The reducing conditions acted upon soil mineral surfaces and enhanced Fe mobilisation probably both in the ionic form and complexed with organic matter. The Al dynamics was instead more related to short term transformations of the layer silicate phases. Traces of a poorly crystalline chlorite were detectable in the Bhs in the pristine forest, but at the clear site only hydroxy-interlayered vermiculite was present. The high amounts of organic acids that migrated through the Bhs after clear cutting may have partially complexed the Al from pedogenic chlorite, giving rise to hydroxy-interlayered behaviour, as normally occurs in Podzol eluvial horizons from where the organic Al-complexes migrate. Our findings suggested that if this trend proceeds further the whole podzolic sequum may migrate downwards. This may have important implication on C budget, as organic carbon will be transferred deeper in the soil profile limiting its losses at least over a short time period.", "keywords": ["BISEQUAL SOILS; CARBON STOCKS; CLAY MINERALOGY; FULVIC ACIDS; NORWAY SPRUCE", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://iris.unito.it/bitstream/2318/100698/2/Falsone%20et%20al%202012%20Geoderma%20AperTO.pdf"}, {"href": "https://doi.org/10.1016/j.geoderma.2012.01.036"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2012.01.036", "name": "item", "description": "10.1016/j.geoderma.2012.01.036", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2012.01.036"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-05-01T00:00:00Z"}}, {"id": "10.1007/bf01770034", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:14:38Z", "type": "Journal Article", "created": "2005-07-07", "title": "Effects Of Artificial Acid Rain On Microbial Activity And Biomass", "description": "The emission of air pollutants which form acid components in rain and snow represents a threat to natural ecosystems. Increased leaching of nutrients from soils (ABRAHAMSEN et al. 1976b), decreased pHvalues in lakes and changes in fish populations (SCHOFIELD 1976) have been suggested as some of the consequences of the increased acidity of rain. Scandinavian coniferous forests are very stable ecosystems, and dramatic short-term effects due to acid rain are hardly to be expected. To simulate long-term effects, artificially acidified rain may be used. We report here decreased microbial activity and biomass in a Norwegian forest soil treated with artificially acidified rain. (Less)", "keywords": ["Bacteria", "Ecology", "Norway", "Rain", "Fungi", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "01 natural sciences", "13. Climate action", "Fermentation", "0401 agriculture", " forestry", " and fisheries", "Acids", "Weather", "Soil Microbiology", "0105 earth and related environmental sciences"], "contacts": [{"organization": "B. Lundgren, Bengt S\u00f6derstr\u00f6m, Erland B\u00e5\u00e5th,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/bf01770034"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Bulletin%20of%20Environmental%20Contamination%20and%20Toxicology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/bf01770034", "name": "item", "description": "10.1007/bf01770034", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/bf01770034"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1979-12-01T00:00:00Z"}}, {"id": "10.1007/s00374-005-0831-1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:14:44Z", "type": "Journal Article", "created": "2005-02-15", "title": "Soil Solution And Extractable Soil Nitrogen Response To Climate Change In Two Boreal Forest Ecosystems", "description": "Several studies show that increases in soil temperature result in higher N mineralization rates in soils. It is, however, unclear if additional N is taken up by the vegetation or accumulates in the soil. To address this question two small, forested catchments in southern Norway were experimentally manipulated by increasing air temperature (+3\u00b0C in summer to +5\u00b0C in winter) and CO2 concentrations (+200 ppmv) in one catchment (CO2T-T) and soil temperature (+3\u00b0C in summer to +5\u00b0C in winter) using heating cables in a second catchment (T-T). During the first treatment year, the climate treatments caused significant increases in soil extractable NH4 under Vaccinium in CO2T-T. In the second treatment year extractable NH4 in CO2T-T and NO3 in T-T significantly increased. Soil solution NH4 concentrations did not follow patterns in extractable NH4 but changes in soil NO3 pools were reflected by changes in dissolved NO3. The anomalous behavior of soil solution NH4 compared to NO3 was most likely due to the higher NH4 adsorption capacity of the soil. The data from this study showed that after 2 years of treatment soil inorganic N pools increased indicating that increases in mineralization, as observed in previous studies, exceeded plant demand and leaching losses.", "keywords": ["0106 biological sciences", "temperature", "04 agricultural and veterinary sciences", "15. Life on land", "carbon-dioxide", "chemistry", "release", "01 natural sciences", "6. Clean water", "13. Climate action", "net nitrogen", "southern norway", "0401 agriculture", " forestry", " and fisheries", "mineralization", "catchment", "climex project", "respiration"], "contacts": [{"organization": "Verburg, P.H.", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s00374-005-0831-1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biology%20and%20Fertility%20of%20Soils", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00374-005-0831-1", "name": "item", "description": "10.1007/s00374-005-0831-1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00374-005-0831-1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-02-16T00:00:00Z"}}, {"id": "10.1007/s11104-022-05447-9", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:15:19Z", "type": "Journal Article", "created": "2022-05-24", "title": "Soil-tree-atmosphere CH4 flux dynamics of boreal birch and spruce trees during spring leaf-out", "description": "Abstract Aims

Studies on tree CH4 exchange in boreal forests regarding seasonality and role of tree canopies are rare. We aimed to quantify the contribution of boreal trees to the forest CH4 budget during spring leaf-out and to reveal the role of microbes in the CH4 exchange.

Methods

Methane fluxes of downy birch and Norway spruce (Betula pubescens and Picea abies) growing on fen and upland sites were measured together with soil CH4 flux, environmental variables and microbial abundances involved in the CH4 cycle. Tree CH4 fluxes were studied from three stem heights and from shoots.

Results

The trees emitted CH4 with higher stem emissions detected from birch and higher shoot emissions from spruce. The stem CH4 emissions from birches at the fen were high (mean 45\uffc2\uffa0\uffc2\uffb5g\uffc2\uffa0m\uffe2\uff88\uff922\uffc2\uffa0h\uffe2\uff88\uff921), decreasing with stem height. Their dynamics followed soil temperature, suggesting the emitted CH4 originated from methanogenic activity, manifested in high mcrA gene copy numbers, in the peat soil. Methanogens were below the quantification limit in the tree tissues. Upscaled tree CH4 emissions accounted for 22% of the total CH4 emissions at the fen.

Conclusions

The variation in stem CH4 flux between the trees and habitats is high, and the emissions from high-emitting birches increase as the spring proceeds. The lack of detection of methanogens or methanotrophs in the aboveground plant tissues suggests that these microbes did not have a significant role in the observed tree-derived fluxes. The stem-emitted CH4 from birches at the fen is presumably produced microbially in the soil.

", "keywords": ["0301 basic medicine", "570", "550", "Methanogens", "LIVING TREES", "Trees", "03 medical and health sciences", "Methanotrophs", "METHANE EMISSIONS", "SAP FLOW", "Boreal forest", "Waterlogging", "PRECURSOR", "0303 health sciences", "BIOMASS EQUATIONS", "NORWAY SPRUCE", "Forestry", "Methane fux", "15. Life on land", "Environmental sciences", "METHANOTROPHS", "13. Climate action", "RADIATION", "Methane flux", "VEGETATION", "COMMUNITIES"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1007/s11104-022-05447-9.pdf"}, {"href": "https://doi.org/10.1007/s11104-022-05447-9"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11104-022-05447-9", "name": "item", "description": "10.1007/s11104-022-05447-9", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-022-05447-9"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-05-24T00:00:00Z"}}, {"id": "10.1016/j.jenvman.2018.11.143", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:41Z", "type": "Journal Article", "created": "2019-02-14", "title": "Abatin ward", "description": "During the past twenty years, the Nordic countries (Denmark, Sweden, Finland and Norway) have introduced a range of measures to reduce losses of nitrogen (N) to air and to aquatic environment by leaching and runoff. However, the agricultural sector is still an important N source to the environment, and projections indicate relatively small emission reductions in the coming years. The four Nordic countries have different priorities and strategies regarding agricultural N flows and mitigation measures, and therefore they are facing different challenges and barriers. In Norway farm subsidies are used to encourage measures, but these are mainly focused on phosphorus (P). In contrast, Denmark targets N and uses control regulations to reduce losses. In Sweden and Finland, both voluntary actions combined with subsidies help to mitigate both N and P. The aim of this study was to compare the present situation pertaining to agricultural N in the Nordic countries as well as to provide recommendations for policy instruments to achieve cost effective abatement of reactive N from agriculture in the Nordic countries, and to provide guidance to other countries. To further reduce N losses from agriculture, the four countries will have to continue to take different routes. In particular, some countries will need new actions if 2020 and 2030 National Emissions Ceilings Directive (NECD) targets are to be met. Many options are possible, including voluntary action, regulation, taxation and subsidies, but the difficulty is finding the right balance between these policy options for each country. The governments in the Nordic countries should put more attention to the NECD and consult with relevant stakeholders, researchers and farmer's associations on which measures to prioritize to achieve these goals on time. It is important to pick remaining low hanging fruits through use of the most cost effective mitigation measures. We suggest that N application rate and its timing should be in accordance with the crop need and carrying capacity of environmental recipients. Also, the choice of application technology can further reduce the risk of N losses into air and waters. This may require more region-specific solutions and knowledge-based support with tailored information in combination with further targeted subsidies or regulations.", "keywords": ["Denmark", "ta1172", "Ammonia emissions", "reactive nitrogen", "nitrogen management", "7. Clean energy", "01 natural sciences", "12. Responsible consumption", "Nitrogen surplus", "11. Sustainability", "Finland", "Nitrogen management", "ta415", "0105 earth and related environmental sciences", "Sweden", "2. Zero hunger", "VDP::Landbruks- og Fiskerifag: 900", "Norway", "Nitrogen policy", "Agriculture", "15. Life on land", "6. Clean water", "Reactive nitrogen", "Nordic countries", "ammonia emissions", "13. Climate action", "nitrogen surplus", "nitrogen policy"]}, "links": [{"href": "https://doi.org/10.1016/j.jenvman.2018.11.143"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Environmental%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jenvman.2018.11.143", "name": "item", "description": "10.1016/j.jenvman.2018.11.143", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jenvman.2018.11.143"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-04-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2010.02.020", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:03Z", "type": "Journal Article", "created": "2010-03-12", "title": "Carbon Dioxide Emissions Of Soils Under Pure And Mixed Stands Of Beech And Spruce, Affected By Decomposing Foliage Litter Mixtures", "description": "Soil respiration is the largest terrestrial source of CO2 to the atmosphere. In forests, roughly half of the soil respiration is autotrophic (mainly root respiration) while the remainder is heterotrophic, originating from decomposition of soil organic matter. Decomposition is an important process for cycling of nutrients in forest ecosystems. Hence, tree species induced changes may have a great impact on atmospheric CO2 concentrations. Since studies on the combined effects of beech\u2013spruce mixtures are very rare, we firstly measured CO2 emission rates in three adjacent stands of pure spruce (Picea abies), mixed spruce\u2013beech and pure beech (Fagus sylvatica) on three base-rich sites (Flysch) and three base-poor sites (Molasse; yielding a total of 18 stands) during two summer periods using the closed chamber method. CO2 emissions were higher on the well-aerated sandy soils on Molasse than on the clayey soils on Flysch, characterized by frequent water logging. Mean CO2 effluxes increased from spruce (41) over the mixed (55) to the beech (59) stands on Molasse, while tree species effects were lower on Flysch (30\u201335, mixed > beech = spruce; all data in mg CO2\u2013C m\u22122 h\u22121). Secondly, we studied decomposition after fourfold litter manipulations at the 6 mixed species stands: the Oi \u2013 and Oe horizons were removed and replaced by additions of beech \u2013, spruce \u2013 and mixed litter of the adjacent pure stands of known chemical quality and one zero addition (blank) in open rings (20 cm inner diameter), which were covered with meshes to exclude fresh litter fall. Mass loss within two years amounted to 61\u201368% on Flysch and 36\u201344% on Molasse, indicating non-additive mixed species effects (mixed litter showed highest mass loss). However, base cation release showed a linear response, increasing from the spruce \u2013 over the mixed \u2013 to the beech litter. The differences in N release (immobilization) resulted in a characteristic converging trend in C/N ratios for all litter compositions on both bedrocks during decomposition. In the summers 2006 and 2007 we measured CO2 efflux from these manipulated areas (a closed chamber fits exactly over such a ring) as field indicator of the microbial activity. Net fluxes (subtracting the so-called blank values) are considered an indicator of litter induced changes only and increased on both bedrocks from the spruce \u2013 over the mixed \u2013 to the beech litter. According to these measurements, decomposing litter contributed between 22\u201332% (Flysch) and 11\u201328% (Molasse) to total soil respiration, strengthening its role within the global carbon cycle.", "keywords": ["DYNAMICS", "0106 biological sciences", "FLUXES", "Fagus sylvatica", "NUTRIENT RELEASE", "BROADLEAF", "Nutrient cycling", "01 natural sciences", "Mixed species effects", "507015 Regionalforschung", "FORESTS", "FAGUS-SYLVATICA", "CO(2) efflux", "SDG 15 \u2013 Leben an Land", "SDG 15 - Life on Land", "Picea abies", "Litter decomposition", "NORWAY SPRUCE", "04 agricultural and veterinary sciences", "15. Life on land", "PICEA-ABIES", "RESPIRATION", "13. Climate action", "507015 Regional research", "0401 agriculture", " forestry", " and fisheries", "LEAF-LITTER"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2010.02.020"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2010.02.020", "name": "item", "description": "10.1016/j.soilbio.2010.02.020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2010.02.020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-06-01T00:00:00Z"}}, {"id": "10.1029/2020wr028624", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:42Z", "type": "Journal Article", "created": "2021-06-21", "title": "Hydraulic and Physical Properties of Managed and Intact Peatlands: Application of the Van Genuchten\u2010Mualem Models to Peat Soils", "description": "Abstract

Undisturbed peatlands are effective carbon sinks and provide a variety of ecosystem services. However, anthropogenic disturbances, especially land drainage, strongly alter peat soil properties and jeopardize the benefits of peatlands. The effects of disturbances should therefore be assessed and predicted. To support accurate modeling, this study determined the physical and hydraulic properties of intact and disturbed peat samples collected from 59 sites (in total 3,073 samples) in Finland and Norway. The bulk density (BD), porosity, and specific yield (Sy) values obtained indicated that the top layer (0\uffe2\uff80\uff9330\uffc2\uffa0cm depth) at agricultural and peat extraction sites was most affected by land use change. The BD in the top layer at agricultural, peat extraction, and forestry sites was 441%, 140%, and 92% higher, respectively, than that of intact peatlands. Porosity decreased with increased BD, but not linearly. Agricultural and peat extraction sites had the lowest saturated hydraulic conductivity, Sy, and porosity, and the highest BD of the land use options studied. The van Genuchten\uffe2\uff80\uff90Mualem (vGM) soil water retention curve (SWRC) and hydraulic conductivity (K) models proved to be applicable for the peat soils tested, providing values of SWRC, K, and vGM\uffe2\uff80\uff90parameters (\uffce\uffb1 and n) for peat layers (top, middle and bottom) under different land uses. A decrease in peat soil water content of \uffe2\uff89\uffa510% reduced the unsaturated K values by two orders of magnitude. This unique data set can be used to improve hydrological modeling in peat\uffe2\uff80\uff90dominated catchments and for fuller integration of peat soils into large\uffe2\uff80\uff90scale hydrological models.

", "keywords": ["hydrologia", "bogs", "porosity", "peat extraction", "soil water retention curve", "hydraulics", "ta1171", "hydrology", "maank\u00e4ytt\u00f6", "soil", "mets\u00e4talous", "huokoisuus", "Norja", "maatalous", "groundwater", "Suomi", "turpeennosto", "suot", "soils", "turvemaat", "peatlands", "Finland", "turvetuotanto", "hydrauliikka", "agriculture", "maaper\u00e4", "pohjavesi", "Norway", "forestry", "land use", "15. Life on land", "peat soil", "maatalousmaa", "peat production", "6. Clean water", "maalajit", "agricultural land", "ominaisuudet", "13. Climate action", "soil properties", "peatland", "van Genuchten"]}, "links": [{"href": "https://doi.org/10.1029/2020wr028624"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Water%20Resources%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2020wr028624", "name": "item", "description": "10.1029/2020wr028624", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2020wr028624"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-07-01T00:00:00Z"}}, {"id": "10.1021/es201746b", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:32Z", "type": "Journal Article", "created": "2011-07-28", "title": "Radiative Forcing Impacts Of Boreal Forest Biofuels: A Scenario Study For Norway In Light Of Albedo", "description": "Radiative forcing impacts due to increased harvesting of boreal forests for use as transportation biofuel in Norway are quantified using simple climate models together with life cycle emission data, MODIS surface albedo data, and a dynamic land use model tracking carbon flux and clear-cut area changes within productive forests over a 100-year management period. We approximate the magnitude of radiative forcing due to albedo changes and compare it to the forcing due to changes in the carbon cycle for purposes of attributing the net result, along with changes in fossil fuel emissions, to the combined anthropogenic land use plus transport fuel system. Depending on albedo uncertainty and uncertainty about the geographic distribution of future logging activity, we report a range of results, thus only general conclusions about the magnitude of the carbon offset potential due to changes in surface albedo can be drawn. Nevertheless, our results have important implications for how forests might be managed for mitigating climate change in light of this additional biophysical criterion, and in particular, on future biofuel policies throughout the region. Future research efforts should be directed at understanding the relationships between the physical properties of managed forests and albedo, and how albedo changes in time as a result of specific management interventions.", "keywords": ["Light", "Norway", "Climate", "Climate Change", "Models", " Theoretical", "15. Life on land", "01 natural sciences", "7. Clean energy", "Carbon", "Trees", "13. Climate action", "Biofuels", "11. Sustainability", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1021/es201746b"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Science%20%26amp%3B%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1021/es201746b", "name": "item", "description": "10.1021/es201746b", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1021/es201746b"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-08-12T00:00:00Z"}}, {"id": "10.1029/2019GL083025", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:41Z", "type": "Journal Article", "created": "2019-06-06", "title": "Peatland Volume Mapping over Resistive Substrates with Airborne Electromagnetic Technology", "description": "Abstract

Despite the importance of peatlands as carbon reservoirs, a reliable methodology for the detection of peat volumes at regional scale is still missing. In this study we explore for the first time the use of airborne electromagnetic (AEM) to detect and quantify peat thickness and extension of two bogs located in Norway, where peat lays over resistive bedrock. Our results show that when calibrated using a small amount of field measurements, AEM can successfully detect peat volume even in less ideal conditions, that is, relatively resistive peat over resistive substrata. We expect the performance of AEM to increase significantly in presence of a conductive substratum without need of calibration with field data. The organic carbon content retrieved from field surveys and laboratory analyses combined with the 3\uffe2\uff80\uff90D model of the peat extracted from AEM allowed us to quantify the total organic carbon of the selected bogs, hence assessing the carbon pool.

", "keywords": ["13. Climate action", "CRESCENDO", " Marie Sk\u0142odowska-Curie action", " peatlands", " peat samples", " peat thickness", " Norway", " bogs", " Airborne Electromagnetics", " SkyTEM", " organic carbon content", " carbon pool", "Airborne electromagnetic; organic carbon; peat thickness; peatlands", " Marie Curie fellowship", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://cris.unibo.it/bitstream/11585/717338/1/Silvestri_et_al-2019-Geophysical_Research_Letters.pdf"}, {"href": "https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2019GL083025"}, {"href": "https://doi.org/10.1029/2019GL083025"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geophysical%20Research%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2019GL083025", "name": "item", "description": "10.1029/2019GL083025", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2019GL083025"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-06-24T00:00:00Z"}}, {"id": "10.1038/nature01051", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:45Z", "type": "Journal Article", "created": "2002-10-30", "title": "Quantifying Nitrogen-Fixation In Feather Moss Carpets Of Boreal Forests", "description": "Biological nitrogen (N) fixation is the primary source of N within natural ecosystems, yet the origin of boreal forest N has remained elusive. The boreal forests of Eurasia and North America lack any significant, widespread symbiotic N-fixing plants. With the exception of scattered stands of alder in early primary successional forests, N-fixation in boreal forests is considered to be extremely limited. Nitrogen-fixation in northern European boreal forests has been estimated at only 0.5 kg N ha(-1) yr(-1); however, organic N is accumulated in these ecosystems at a rate of 3 kg N ha(-1) yr(-1) (ref. 8). Our limited understanding of the origin of boreal N is unacceptable given the extent of the boreal forest region, but predictable given our imperfect knowledge of N-fixation. Herein we report on a N-fixing symbiosis between a cyanobacterium (Nostoc sp.) and the ubiquitous feather moss, Pleurozium schreberi (Bird) Mitt. that alone fixes between 1.5 and 2.0 kg N ha(-1) yr(-1) in mid- to late-successional forests of northern Scandinavia and Finland. Previous efforts have probably underestimated N-fixation potential in boreal forests.", "keywords": ["Sweden", "0106 biological sciences", "Acetylene", "Norway", "04 agricultural and veterinary sciences", "15. Life on land", "Cyanobacteria", "01 natural sciences", "Bryopsida", "Trees", "Plant Leaves", "Kinetics", "Nitrogen Fixation", "0401 agriculture", " forestry", " and fisheries", "Symbiosis", "Finland"]}, "links": [{"href": "https://doi.org/10.1038/nature01051"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/nature01051", "name": "item", "description": "10.1038/nature01051", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/nature01051"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2002-10-31T00:00:00Z"}}, {"id": "10.1093/forestry/cpz043", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:25Z", "type": "Journal Article", "created": "2019-06-04", "title": "Effects of intensified silviculture on timber production and its economic profitability in boreal Norway spruce and Scots pine stands under changing climatic conditions", "description": "Abstract

The aim of this study was to examine how intensified silviculture affects timber production (sawlogs and pulpwood) and its economic profitability (net present value [NPV], with 2 per cent interest rate) based on forest ecosystem model simulations. The study was conducted on Norway spruce and Scots pine stands located on medium-fertile upland forest sites under middle boreal conditions in Finland, under current climate and minor climate change (the RCP2.6 forcing scenario). In intensified silviculture, improved regeneration materials were used, with 10\uffe2\uff80\uff9320 per cent higher growth than the unimproved materials, and/or nitrogen (N) fertilization of 150 kg ha\uffe2\uff88\uff921, once or twice during a rotation of 50\uffe2\uff80\uff9370 years. Compared to the baseline management regime, the use of improved seedlings, alone or together with N fertilization, increased timber production by up to 26\uffe2\uff80\uff9328 per cent and the NPV by up to 32\uffe2\uff80\uff9360 per cent over rotation lengths of 60\uffe2\uff80\uff9370 years, regardless of tree species (although more in spruce) or climate applied. The use of improved seedlings affected timber yield and NPV more than N fertilization. Minor climate change also increased these outcomes in Scots pine, but not in Norway spruce.

", "keywords": ["580", "330", "fertilization", "13. Climate action", "Norway spruce", "Scots pine", "0401 agriculture", " forestry", " and fisheries", "silviculture", "04 agricultural and veterinary sciences", "15. Life on land", "ta4112", "Finland"]}, "links": [{"href": "http://academic.oup.com/forestry/article-pdf/92/5/648/31502634/cpz043.pdf"}, {"href": "https://doi.org/10.1093/forestry/cpz043"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forestry%3A%20An%20International%20Journal%20of%20Forest%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/forestry/cpz043", "name": "item", "description": "10.1093/forestry/cpz043", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/forestry/cpz043"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-06-28T00:00:00Z"}}, {"id": "10.1111/nph.17365", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:19:06Z", "type": "Journal Article", "created": "2021-03-29", "title": "New insight to the role of microbes in the methane exchange in trees: evidence from metagenomic sequencing", "description": "Summary

Methane (CH4) exchange in tree stems and canopies and the processes involved are among the least understood components of the global CH4 cycle. Recent studies have focused on quantifying tree stems as sources of CH4 and understanding abiotic CH4 emissions in plant canopies, with the role of microbial in situ CH4 formation receiving less attention. Moreover, despite initial reports revealing CH4 consumption, studies have not adequately evaluated the potential of microbial CH4 oxidation within trees. In this paper, we discuss the current level of understanding on these processes. Further, we demonstrate the potential of novel metagenomic tools in revealing the involvement of microbes in the CH4 exchange of plants, and particularly in boreal trees. We detected CH4\uffe2\uff80\uff90producing methanogens and novel monooxygenases, potentially involved in CH4 consumption, in coniferous plants. In addition, our field flux measurements from Norway spruce (Picea abies) canopies demonstrate both net CH4 emissions and uptake, giving further evidence that both production and consumption are relevant to the net CH4 exchange. Our findings, together with the emerging diversity of novel CH4\uffe2\uff80\uff90producing microbial groups, strongly suggest microbial analyses should be integrated in the studies aiming to reveal the processes and drivers behind plant CH4 exchange.

", "keywords": ["0301 basic medicine", "330", "ta1172", "metaani", "bakteerit", "Trees", "03 medical and health sciences", "boreal forests", "Ymp\u00e4rist\u00f6tiede", "2. Zero hunger", "0303 health sciences", "Norway", "ta1183", "kasvifysiologia", "puut (kasvit)", "genomiikka", "15. Life on land", "ta4112", "methanogenic archaea", "mets\u00e4t", "plant microbiome", "tree", "methane exchange", "boreaalinen vy\u00f6hyke", "mikrobisto", "13. Climate action", "Environmental Science", "aineiden kierto", "Metagenomics", "methanotrophic bacteria", "arkeonit", "Methane", "captured metagenomics"]}, "links": [{"href": "https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.17365"}, {"href": "https://doi.org/10.1111/nph.17365"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/nph.17365", "name": "item", "description": "10.1111/nph.17365", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/nph.17365"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-05-02T00:00:00Z"}}, {"id": "10.1594/pangaea.814272", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:19:52Z", "type": "Dataset", "title": "Underway physical oceanography and carbon dioxide measurements during G. O. Sars cruise 58GS20110516", "description": "Cruise QC flag: C (see further details). The Fair Data Use Statement for SOCAT can be found at hdl:10013/epic.48576.d001", "keywords": ["extracted from the World Ocean Atlas 2005", "Salinity", "Salinity", " interpolated", "Fugacity of carbon dioxide (water) at equilibrator temperature (wet air)", "interpolated", "Depth", " bathymetric", " interpolated/gridded", "atmospheric", "Quality flag", "Temperature", " water", "Changes in the carbon uptake and emissions by oceans in a changing climate (CARBOCHANGE)", "G O Sars 2003", "extracted from the NCEP NCAR 40 Year Reanalysis Project", "Distance", "Temperature", "Surface Ocean - Lower Atmosphere Study (SOLAS-Norway)", "extracted from the NCEP/NCAR 40-Year Reanalysis Project", "Surface Ocean CO2 Atlas Project SOCAT", "Algorithm", "extracted from the 2 Minute Gridded Global Relief Data ETOPO2", "Earth System Research", "G. O. Sars (2003)", "Surface Ocean Lower Atmosphere Study SOLAS Norway", "2013", "xCO2 (air)", " interpolated", "bathymetric", "water", "interpolated gridded", "DATE TIME", "Pressure", "14. Life underwater", "Fugacity of carbon dioxide water at equilibrator temperature wet air", "xCO2 water at equilibrator temperature dry air", "58GS20110516", "extracted from the 2-Minute Gridded Global Relief Data (ETOPO2)", "LONGITUDE", "xCO2 air", "extracted from GLOBALVIEW CO2", "DEPTH", " water", "Underway cruise track measurements", "Depth", "Temperature at equilibration", "Surface Ocean CO2 Atlas Project (SOCAT)", "Pressure at equilibration", "Fugacity of carbon dioxide (water) at sea surface temperature (wet air)", "extracted from GLOBALVIEW-CO2", "Changes in the carbon uptake and emissions by oceans in a changing climate CARBOCHANGE", "DATE/TIME", "Recomputed after SOCAT (Pfeil et al.", " 2013)", "13. Climate action", "DEPTH", "LATITUDE", "Recomputed after SOCAT Pfeil et al", "Fugacity of carbon dioxide water at sea surface temperature wet air", "xCO2 (water) at equilibrator temperature (dry air)", "Pressure", " atmospheric", " interpolated"], "contacts": [{"organization": "Johannessen, Truls, Lauvset, Siv K,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1594/pangaea.814272"}, {"rel": "self", "type": "application/geo+json", "title": "10.1594/pangaea.814272", "name": "item", "description": "10.1594/pangaea.814272", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1594/pangaea.814272"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-01-01T00:00:00Z"}}, {"id": "10.3390/f12121810", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:20:58Z", "type": "Journal Article", "created": "2021-12-21", "title": "Climate Benefit of Different Tree Species on Former Agricultural Land in Northern Europe", "description": "

The new European Union Forest Strategy for 2030 aims to plant an additional 3 billion trees on non-forest land to mitigate climate change. However, the choice of tree species for afforestation to achieve the maximum climate benefit is unclear. We compared the climate benefit of six different species in terms of carbon (C) sequestration in biomass and the harvested wood substitution in products to avoid carbon dioxide (CO2) emissions from fossil-based materials over the 100-year period by afforesting about \uffc2\uffbc of the available area in northern Europe. The highest climate benefit was observed for larch, both at a stand scale (1626 Mg CO2 eqv. ha\uffe2\uff88\uff921) and at the landscape level for the studied scenario (579 million Mg CO2 eqv.). Larch was followed by Norway spruce, poplar, hybrid aspen and birch, showing a climate benefit about 40\uffe2\uff80\uff9350% lower than that for larch. The climate benefit of willow was about 70% lower than larch. Willow showed 6\uffe2\uff80\uff9314-fold lower C stocks at the landscape level after 100 years than other tree species. The major climate benefit over the 100-year period comes from wood substitution and avoided emissions, but C stock buildup at the landscape level also removes significant amounts of CO2 already present in the atmosphere. The choice of tree species is important to maximize climate change mitigation.

", "keywords": ["Climate Research", "forest carbon; climate change; carbon substitution; willow; poplar; hybrid aspen; Norway spruce; silver birch; larch", "Forest Science"]}, "links": [{"href": "http://www.mdpi.com/1999-4907/12/12/1810/pdf"}, {"href": "https://pub.epsilon.slu.se/26950/1/lutter_r_et_al_220124.pdf"}, {"href": "https://www.mdpi.com/1999-4907/12/12/1810/pdf"}, {"href": "https://doi.org/10.3390/f12121810"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forests", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/f12121810", "name": "item", "description": "10.3390/f12121810", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/f12121810"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-12-20T00:00:00Z"}}, {"id": "10.5061/dryad.wm37pvmt3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:21:38Z", "type": "Dataset", "created": "2023-06-28", "title": "Tree biomass does not correlate with soil carbon stocks in forest-tundra ecotones along a 1100 km latitudinal gradient in Norway", "description": "Due to climate warming, forests are expanding to higher elevations and latitudes at the expense of tundra vegetation. While the subsequent increase in aboveground biomass is well-documented, there is much speculation regarding the effects on soil organic carbon (SOC) stocks. To provide insight into the consequences of tree encroachment into treeless tundra, we sampled SOC stocks across 36 forest-tundra ecotones along a 1100 km latitudinal gradient in Norway. Our results show that SOC stocks vary greatly within, as well as among treeline ecotones, and that SOC stocks do not correlate with tree biomass and tree species. SOC stocks do increase with temperature, and vary with slope steepness, slope aspect, and soil parent material. Applying a \u2018space-for-time substitution\u2019 perspective, our findings suggest that tree encroachment into tundra is unlikely to have immediate consequences for SOC stocks.", "keywords": ["treeline", "13. Climate action", "Norway", "Forest-tundra ecotone", "boreal forest", "15. Life on land", "Tundra", "Soil carbon", "FOS: Natural sciences"], "contacts": [{"organization": "Devos, Claire C\u00e9line, Ohlson, Mikael, N\u00e6sset, Erik, Klanderud, Kari, Bollands\u00e5s, Ole Martin,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.wm37pvmt3"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.wm37pvmt3", "name": "item", "description": "10.5061/dryad.wm37pvmt3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.wm37pvmt3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-07-10T00:00:00Z"}}, {"id": "10.5281/zenodo.3238632", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:23:21Z", "type": "Report", "title": "CRESCENDO_Brottum_Aug-Sept-2017", "description": "Open AccessThis file includes several work sheets with the data used for the article 'Peatland Volume Mapping over Resistive Substrates with Airborne Electromagnetic Technology', Silvestri et al. 2019, GRL, DOI; 10.1029/2019GL083025. Field survey performed near Brottum, Norway, on two bogs. Field survey measurements geo-located with DGPS Trimble GeoXH 3.5G: coordinates of the points available in the data set. Peat thickness was retrieved with a peat auger. Peat samples collected at three different depth intervals: between 50 cm and 100 cm; between 250 cm and 300 cm; between 800 cm and 850 cm; all peat samples are 50 cm long but there are five with length shorter than 50 cm (see comments in the table). Laboratory analyses performed to retrieve bulk density and LOI (two replicates for each sample). The file also includes the elevations of the peat bottom calculated running the ANN for 50 times and computing the mean on the inverted SkyTEM data. The leave-one-out statistics results are also included.", "keywords": ["CRESCENDO", " Marie Sk\u0142odowska-Curie action", " peatlands", " peat samples", " peat thickness", " Norway", " bogs", " Airborne Electromagnetics", " SkyTEM", " organic carbon content", " carbon pool", "15. Life on land"], "contacts": [{"organization": "Silvestri, Sonia, Christensen, Craig W., Lysdahl, Asgeir O. K., Ansch\u00fctz, Helgard, Pfaffhuber, Andreas A., Viezzoli, Andrea,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.3238632"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.3238632", "name": "item", "description": "10.5281/zenodo.3238632", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.3238632"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-06-04T00:00:00Z"}}, {"id": "10138/564434", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:24:37Z", "type": "Journal Article", "created": "2023-07-18", "title": "Soil GHG dynamics after water level rise \u2013 Impacts of selection harvesting in peatland forests", "description": "Managed boreal peatlands are widespread and economically important, but they are a large source of greenhouse gases (GHGs). Peatland GHG emissions are related to soil water-table level (WT), which controls the vertical distribution of aerobic and anaerobic processes and, consequently, sinks and sources of GHGs in soils. On forested peatlands, selection harvesting reduces stand evapotranspiration and it has been suggested that the resulting WT rise decreases soil net emissions, while the tree growth is maintained. We monitored soil concentrations of CO2, CH4, N2O and O2 by depth down to 80\u00a0cm, and CO2 and CH4 fluxes from soil in two nutrient-rich Norway spruce dominated peatlands in Southern Finland to examine the responses of soil GHG dynamics to WT rise. Selection harvesting raised WT by 14\u00a0cm on both sites, on average, mean WTs of the monitoring period being 73\u00a0cm for unharvested control and 59\u00a0cm for selection harvest. All soil gas concentrations were associated with proximity to WT. Both CH4 and CO2 showed remarkable vertical concentration gradients, with high values in the deepest layer, likely due to slow gas transfer in wet peat. CH4 was efficiently consumed in peat layers near and above WT where it reached sub-atmospheric concentrations, indicating sustained oxidation of CH4 from both atmospheric and deeper soil origins also after harvesting. Based on soil gas concentration data, surface peat (top 25/30\u00a0cm layer) contributed most to the soil-atmosphere CO2 fluxes and harvesting slightly increased the CO2 source in deeper soil (below 45/50\u00a0cm), which could explain the small CO2 flux differences between treatments. N2O production occurred above WT, and it was unaffected by harvesting. Overall, the WT rise obtained with selection harvesting was not sufficient to reduce soil GHG emissions, but additional hydrological regulation would have been needed.", "keywords": ["550", "218 Environmental engineering", "Forestry", "216", "15. Life on land", "Soil greenhouse gas emissions", "ta4112", "Continuous cover forestry", "13. Climate action", "218", "Gradient method", "216 Materials engineering", "11. Sustainability", "Peatland hydrology", "Norway spruce mire", "Climate smart forestry"]}, "links": [{"href": "https://doi.org/10138/564434"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10138/564434", "name": "item", "description": "10138/564434", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10138/564434"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-11-01T00:00:00Z"}}, {"id": "10138/334890", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:24:37Z", "type": "Journal Article", "created": "2021-06-21", "title": "Hydraulic and Physical Properties of Managed and Intact Peatlands: Application of the Van Genuchten\u2010Mualem Models to Peat Soils", "description": "Abstract

Undisturbed peatlands are effective carbon sinks and provide a variety of ecosystem services. However, anthropogenic disturbances, especially land drainage, strongly alter peat soil properties and jeopardize the benefits of peatlands. The effects of disturbances should therefore be assessed and predicted. To support accurate modeling, this study determined the physical and hydraulic properties of intact and disturbed peat samples collected from 59 sites (in total 3,073 samples) in Finland and Norway. The bulk density (BD), porosity, and specific yield (Sy) values obtained indicated that the top layer (0\uffe2\uff80\uff9330\uffc2\uffa0cm depth) at agricultural and peat extraction sites was most affected by land use change. The BD in the top layer at agricultural, peat extraction, and forestry sites was 441%, 140%, and 92% higher, respectively, than that of intact peatlands. Porosity decreased with increased BD, but not linearly. Agricultural and peat extraction sites had the lowest saturated hydraulic conductivity, Sy, and porosity, and the highest BD of the land use options studied. The van Genuchten\uffe2\uff80\uff90Mualem (vGM) soil water retention curve (SWRC) and hydraulic conductivity (K) models proved to be applicable for the peat soils tested, providing values of SWRC, K, and vGM\uffe2\uff80\uff90parameters (\uffce\uffb1 and n) for peat layers (top, middle and bottom) under different land uses. A decrease in peat soil water content of \uffe2\uff89\uffa510% reduced the unsaturated K values by two orders of magnitude. This unique data set can be used to improve hydrological modeling in peat\uffe2\uff80\uff90dominated catchments and for fuller integration of peat soils into large\uffe2\uff80\uff90scale hydrological models.