The efficacy of mechanized pre-commercial thinning (PCT) done by a lightweight mini-harvester Tehoj\uffc3\uffa4tk\uffc3\uffa4 together with the Chondrostereum purpureum (Pers. ex Fr.) Pouzar fungal treatment (dilutions 1:100, 1:200, 1:400) and control (cutting only) was studied for three\uffc2\uffa0years. The efficacy of the fungal treatment was defined as capability to prevent sprouting of birch (Betula pendula Roth. and B. pubescens Ehrh.). The fungal treatment resulted in higher stump mortality and lower number of sprouts but it did not have a clear effect on the maximum height of stump sprouts. However, mortalities obtained in this study (34.1%, 26.8%, and 25.6% for dilutions 1:100, 1:200, and 1:400, respectively) were notably lower compared to previous studies which indicate that the accuracy of the spreading mechanism was not satisfactory. We conclude that it is possible to decrease stump sprouting with the fully mechanized fungal treatment but putting this implementation into practice needs more testing to increase efficacy.
", "keywords": ["0106 biological sciences", "vegetation management", "biological control", "stump sprouts", "0401 agriculture", " forestry", " and fisheries", "silviculture", "04 agricultural and veterinary sciences", "Betula spp", "ta4112", "01 natural sciences", "mechanization"]}, "links": [{"href": "http://link.springer.com/content/pdf/10.1007/s10526-019-09971-z.pdf"}, {"href": "https://doi.org/10.1007/s10526-019-09971-z"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/BioControl", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10526-019-09971-z", "name": "item", "description": "10.1007/s10526-019-09971-z", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10526-019-09971-z"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-09-13T00:00:00Z"}}, {"id": "10.1007/s11104-017-3369-8", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:15:18Z", "type": "Journal Article", "created": "2017-08-22", "title": "Thaw Pond Development And Initial Vegetation Succession In Experimental Plots At A Siberian Lowland Tundra Site", "description": "Background and aims: Permafrost degradation has the potential to change the Arctic tundra landscape. We observed rapid local thawing of ice-rich permafrost resulting in thaw pond formation, which was triggered by removal of the shrub cover in a field experiment. This study aimed to examine the rate of permafrost thaw and the initial vegetation succession after the permafrost collapse. Methods: In the experiment, we measured changes in soil thaw depth, plant species cover and soil subsidence over nine years (2007\u20132015). Results: After abrupt initial thaw, soil subsidence in the removal plots continued indicating further thawing of permafrost albeit at a much slower pace: 1 cm y\u22121 over 2012\u20132015 vs. 5 cm y\u22121 over 2007\u20132012. Grass cover strongly increased after the initial shrub removal, but later declined with ponding of water in the subsiding removal plots. Sedges established and expanded in the wetter removal plots. Thereby, the removal plots have become increasingly similar to nearby \u2018natural\u2019 thaw ponds. Conclusions: The nine years of field observations in a unique shrub removal experiment at a Siberian tundra site document possible trajectories of small-scale permafrost collapse and the initial stage of vegetation recovery, which is essential knowledge for assessing future tundra landscape changes.
", "keywords": ["0301 basic medicine", "Ecology (including Biodiversity Conservation)", "Permafrost degradation", "Betula nana", "15. Life on land", "01 natural sciences", "Thermokarst", "Vegetation dynamics", "03 medical and health sciences", "13. Climate action", "Arctic tundra", "Environmental Sciences", "SDG 15 - Life on Land", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1007/s11104-017-3369-8"}, {"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/s11104-017-3369-8", "name": "item", "description": "10.1007/s11104-017-3369-8", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-017-3369-8"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-08-22T00:00:00Z"}}, {"id": "10.1016/j.envexpbot.2021.104387", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:12Z", "type": "Journal Article", "created": "2021-01-13", "title": "Volatile organic compound emission in tundra shrubs \u2013 Dependence on species characteristics and the near-surface environment", "description": "Temperature is one of the key abiotic factors during the life of plants, especially in the Arctic region which is currently experiencing rapid climate change. We evaluated plant traits and environmental variables determining leaf temperature in tundra shrubs and volatile organic compound (VOC) emissions with field measurements on deciduous tundra shrubs, Salix myrsinites and Betula nana, and evergreen Cassiope tetragona and Rhododendron lapponicum. Higher leaf-to-air temperature difference was observed in evergreen, compared to deciduous shrubs. Evergreen shrubs also showed continuously increasing photosynthesis with increasing temperature, suggesting high thermal tolerance. For the deciduous species, the optimum temperature for net photosynthesis was between our measurement temperatures of 24\u2009\u00b0C and 38\u2009\u00b0C. Air temperature and vapor pressure deficit were the most important variables influencing leaf temperature and VOC emissions in all the studied plants, along with stomatal density and specific leaf area in the deciduous shrubs. Using climate data and emission factors from our measurements, we modelled total seasonal tundra shrub VOC emissions of 0.3-2.3\u2009g\u2009m-2 over the main growing season. Our results showed higher-than-expected temperature optima for photosynthesis and VOC emission and demonstrated the relative importance of plant traits and local environments in determining leaf temperature and VOC emissions in a subarctic tundra.", "keywords": ["0106 biological sciences", "0301 basic medicine", "VOC", "Betula nana", "15. Life on land", "Salix myrsinites", "01 natural sciences", "Cassiope tetragona", "Article", "Leaf temperature", "03 medical and health sciences", "13. Climate action", "11. Sustainability", "MEGAN", "Photosynthesis", "Rhododendron lapponicum", "Tundra"]}, "links": [{"href": "https://doi.org/10.1016/j.envexpbot.2021.104387"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20and%20Experimental%20Botany", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envexpbot.2021.104387", "name": "item", "description": "10.1016/j.envexpbot.2021.104387", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envexpbot.2021.104387"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-04-01T00:00:00Z"}}, {"id": "10.1016/j.biombioe.2009.05.009", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-07-25T16:15:54Z", "type": "Journal Article", "created": "2009-06-12", "title": "Ground Vegetation Exceeds Tree Seedlings In Early Biomass Production And Carbon Stock On An Ash-Fertilized Cut-Away Peatland", "description": "Afforestation is one of the most popular after-use options of cut-away peatlands in Scandinavia since it has both economic and aesthetic values and therefore the interest concerning the carbon stock often focuses on tree stands. Consequently, ground vegetation is readily disregarded in the present calculations of the climatic impact of afforestation. However, at the early stages of afforestation vigorous ground vegetation may have a major role in carbon sequestration. The biomass and C stock of ground vegetation and young tree seedlings were examined on an ash-fertilized and afforested cut-away peatland. Six treatments of different mixtures and quantities of wood-ash, peat-ash, biotite or Forest PK-fertilizer were replicated in three plots. Betula pubescens Ehrh. seeds were sown on randomized halves of split plots while the other halves were left unsown. The plant biomass was harvested four growing seasons after the treatments. The live above-ground biomass of ground vegetation on a cut-away peatland was up to two times that of tree seedlings. Furthermore, the below-ground biomass of ground vegetation and tree seedlings was equal to the above-ground biomass, or even greater. In particular, the biomass of mosses multiplied on ash-based fertilized areas compared to the Forest PK-fertilized areas. Our study proved that at the early stages of afforestation ground vegetation was even more important in biomass production and C stock than tree seedlings. Consequently, our results suggest that ground vegetation biomass should also be considered when the climatic impact of afforestation of cut-away peatlands is being calculated.", "keywords": ["580", "0106 biological sciences", "turvetuhka", "04 agricultural and veterinary sciences", "15. Life on land", "7. Clean energy", "01 natural sciences", "Betula pubescens Ehrh", "maanalainen biomassa", "13. Climate action", "puutuhka", "0401 agriculture", " forestry", " and fisheries", "metsitys", "maanp\u00e4\u00e4llinen biomassa"], "contacts": [{"organization": "Huotari, N., Tillman-Sutela, E., Kubin, E.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.biombioe.2009.05.009"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biomass%20and%20Bioenergy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.biombioe.2009.05.009", "name": "item", "description": "10.1016/j.biombioe.2009.05.009", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.biombioe.2009.05.009"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-09-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2005.10.045", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:13Z", "type": "Journal Article", "created": "2006-01-11", "title": "Detrital Control On The Release Of Dissolved Organic Nitrogen (Don) And Dissolved Inorganic Nitrogen (Din) From The Forest Floor Under Chronic N Deposition", "description": "The role of detrital quantity and quality in forest floor N leaching was investigated in a litter manipulation experiment at a deciduous forest under chronic N deposition. Dissolved inorganic nitrogen (DIN) comprised the bulk of nitrogen leaching from the control except a short period following autumn litterfall. The dominance of DIN was strengthened by litter exclusion, whereas the addition of glucose or fresh litter led to a small increase in dissolved organic nitrogen (DON) and either a temporary or gradual reduction in NO(3)(-) release, respectively. Changes in soluble organic C and microbial C in the forest floor implied that increased availability of C sources might have enhanced microbial immobilization of DIN, either temporarily following glucose application or over the longer term following litter addition. The results suggest that detrital quantity and quality can play a crucial role in determining the balance between DIN and DON in N-enriched forest soils.", "keywords": ["Air Pollutants", "Nitrogen", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Carbon", "6. Clean water", "Trees", "Plant Leaves", "Biodegradation", " Environmental", "Solubility", "Betulaceae", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Adsorption", "Biomass", "Seasons", "Ecosystem", "Soil Microbiology", "Environmental Monitoring", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Ji Hyung Park, Egbert Matzner,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2005.10.045"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2005.10.045", "name": "item", "description": "10.1016/j.envpol.2005.10.045", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2005.10.045"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-09-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2022.155783", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:56Z", "type": "Journal Article", "created": "2022-05-09", "title": "Impacts of elevation on plant traits and volatile organic compound emissions in deciduous tundra shrubs", "description": "The northernmost regions of our planet experience twice the rate of climate warming compared to the global average. Despite the currently low air temperatures, tundra shrubs are known to exhibit high leaf temperatures and are increasing in height due to warming, but it is unclear how the increase in height will affect the leaf temperature. To study how temperature, soil moisture, and changes in light availability influence the physiology and emissions of climate-relevant volatile organic compounds (VOCs), we conducted a study on two common deciduous tundra shrubs, Salix glauca (separating males and females for potential effects of plant sex) and Betula glandulosa, at two elevations in South Greenland. Low-elevation Salix shrubs were 45% taller, but had 37% lower rates of net CO2 assimilation and 63% lower rates of isoprene emission compared to high-elevation shrubs. Betula shrubs showed 40% higher stomatal conductance and 24% higher glandular trichome density, in the low-elevation valley, compared to those from the high-elevation mountain slope. Betula green leaf volatile emissions were 235% higher at high elevation compared to low elevation. Male Salix showed a distinct VOC blend and emitted 55% more oxygenated VOCs, compared to females, possibly due to plant defense mechanisms. In our light response curves, isoprene emissions increased linearly with light intensity, potentially indicating adaptation to strong light. Leaf temperature decreased with increasing Salix height, at 4 \u00b0C m-1, which can have implications for plant physiology. However, no similar relationship was observed for B. glandulosa. Our results highlight that tundra shrub traits and VOC emissions are sensitive to temperature and light, but that local variations in soil moisture strongly interact with temperature and light responses. Our results suggest that effects of climate warming, alone, poorly predict the actual plant responses in tundra vegetation.", "keywords": ["0301 basic medicine", "Volatile Organic Compounds", "0303 health sciences", "Betula glandulosa", "Light", "Height", "Salix glauca", "Arctic Regions", "VOC", "Climate Change", "CO assimilation", "Salix", "15. Life on land", "Leaf temperature", "Soil", "03 medical and health sciences", "13. Climate action", "11. Sustainability", "Sex", "Soil moisture", "Tundra", "Betula"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2022.155783"}, {"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.2022.155783", "name": "item", "description": "10.1016/j.scitotenv.2022.155783", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2022.155783"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-09-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2009.12.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:03Z", "type": "Journal Article", "created": "2010-01-02", "title": "Impacts Of Extreme Winter Warming Events On Litter Decomposition In A Sub-Arctic Heathland", "description": "Arctic climate change is expected to lead to a greater frequency of extreme winter warming events. During these events, temperatures rapidly increase to well above 0 degrees C for a number of days, which can lead to snow melt at the landscape scale, loss of insulating snow cover and warming of soils. However, upon return of cold ambient temperatures, soils can freeze deeper and may experience more freeze-thaw cycles due to the absence of a buffering snow layer. Such loss of snow cover and changes in soil temperatures may be critical for litter decomposition since a stable soil microclimate during winter (facilitated by snow cover) allows activity of soil organisms. Indeed, a substantial part of fresh litter decomposition may occur in winter. However, the impacts of extreme winter warming events on soil processes such as decomposition have never before been investigated. With this study we quantify the impacts of winter warming events on fresh litter decomposition using field simulations and lab studies. Winter warming events were simulated in sub-Arctic heathland using infrared heating lamps and soil warming cables during March (typically the period of maximum snow depth) in three consecutive years of 2007, 2008, and 2009. During the winters of 2008 and 2009, simulations were also run in January (typically a period of shallow snow cover) on separate plots. The lab study included soil cores with and without fresh litter subjected to winter-warming simulations in climate chambers. Litter decomposition of common plant species was unaffected by winter warming events simulated either in the lab (litter of Betula pubescens ssp. czerepanovii), or field (litter of Vaccinium vitis-idaea, and B. pubescens ssp. czerepanovii) with the exception of Vaccinium myrtillus (a common deciduous dwarf shrub) that showed less mass loss in response to winter warming events. Soil CO2 efflux measured in the lab study was (as expected) highly responsive to winter warming events but surprisingly fresh litter decomposition was not. Most fresh litter mass loss in the lab occurred during the first 3-4 weeks (simulating the period after litter fall). In contrast to past understanding, this suggests that winter decomposition of fresh litter is almost nonexistent and observations of substantial mass loss across the cold season seen here and in other studies may result from leaching in autumn, prior to the onset of 'true' winter. Further, our findings surprisingly suggest that extreme winter warming events do not affect fresh litter decomposition. Crown Copyright (c) 2009 Published by Elsevier Ltd. All rights reserved.", "keywords": ["Betula pubescens ssp czerepanovii", "Decomposition", "Extreme weather", "04 agricultural and veterinary sciences", "15. Life on land", "Winter warming event", "V. myrtillus", "Arctic", "13. Climate action", "Snow", "SDG 13 - Climate Action", "Climate change", "0401 agriculture", " forestry", " and fisheries", "Vaccinium vitis-idaea", "Freeze-thaw"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2009.12.011"}, {"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.2009.12.011", "name": "item", "description": "10.1016/j.soilbio.2009.12.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2009.12.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-04-01T00:00:00Z"}}, {"id": "10.1038/nature02047", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:45Z", "type": "Journal Article", "created": "2003-10-15", "title": "Reduction Of Soil Carbon Formation By Tropospheric Ozone Under Increased Carbon Dioxide Levels", "description": "In the Northern Hemisphere, ozone levels in the troposphere have increased by 35 per cent over the past century, with detrimental impacts on forest and agricultural productivity, even when forest productivity has been stimulated by increased carbon dioxide levels. In addition to reducing productivity, increased tropospheric ozone levels could alter terrestrial carbon cycling by lowering the quantity and quality of carbon inputs to soils. However, the influence of elevated ozone levels on soil carbon formation and decomposition are unknown. Here we examine the effects of elevated ozone levels on the formation rates of total and decay-resistant acid-insoluble soil carbon under conditions of elevated carbon dioxide levels in experimental aspen (Populus tremuloides) stands and mixed aspen-birch (Betula papyrifera) stands. With ambient concentrations of ozone and carbon dioxide both raised by 50 per cent, we find that the formation rates of total and acid-insoluble soil carbon are reduced by 50 per cent relative to the amounts entering the soil when the forests were exposed to increased carbon dioxide alone. Our results suggest that, in a world with elevated atmospheric carbon dioxide concentrations, global-scale reductions in plant productivity due to elevated ozone levels will also lower soil carbon formation rates significantly.", "keywords": ["2. Zero hunger", "Atmosphere", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "01 natural sciences", "Carbon", "Trees", "Soil", "Ozone", "Populus", "Solubility", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Acids", "Betula", "Ecosystem", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Noah J. Karberg, Kurt S. Pregitzer, Christian P. Giardina, John S. King, Wendy M. Loya,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1038/nature02047"}, {"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/nature02047", "name": "item", "description": "10.1038/nature02047", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/nature02047"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-10-01T00:00:00Z"}}, {"id": "10.1093/treephys/25.12.1511", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:28Z", "type": "Journal Article", "created": "2012-01-20", "title": "Effects Of Elevated Concentrations Of Atmospheric Co2 And Tropospheric O-3 On Leaf Litter Production And Chemistry In Trembling Aspen And Paper Birch Communities", "description": "Human activities are increasing the concentrations of atmospheric carbon dioxide ([CO2]) and tropospheric ozone ([O3]), potentially leading to changes in the quantity and chemical quality of leaf litter inputs to forest soils. Because the quality and quantity of labile and recalcitrant carbon (C) compounds influence forest productivity through changes in soil organic matter content, characterizing changes in leaf litter in response to environmental change is critical to understanding the effects of global change on forests. We assessed the independent and combined effects of elevated [CO2] and elevated [O3] on foliar litter production and chemistry in aspen (Populus tremuloides Michx.) and birch-(Betula papyrifera Marsh.) aspen communities at the Aspen free-air CO2 enrichment (FACE) experiment in Rhinelander, WI. Litter was analyzed for concentrations of C, nitrogen (N), soluble sugars, lipids, lignin, cellulose, hemicellulose and C-based defensive compounds (soluble phenolics and condensed tannins). Concentrations of these chemical compounds in naturally senesced litter were similar in aspen and birch-aspen communities among treatments, except for N, the C:N ratio and lipids. Elevated [CO2] significantly increased C:N (+8.7%), lowered mean litter N concentration (-10.7%) but had no effect on the concentrations of soluble sugars, soluble phenolics and condensed tannins. Elevated [CO2] significantly increased litter biomass production (+33.3%), resulting in significant increases in fluxes of N, soluble sugars, soluble phenolics and condensed tannins to the soil. Elevated [O3] significantly increased litter concentrations of soluble sugars (+78.1%), soluble phenolics (+53.1%) and condensed tannins (+77.2%). There were no significant effects of elevated [CO2] or elevated [O3] on the concentrations of individual C structural carbohydrates (cellulose, hemicellulose and lignin). Elevated [CO2] significantly increased cellulose (+37.4%) input to soil, whereas elevated [O3] significantly reduced hemicellulose and lignin inputs to soil (-22.3 and -31.5%, respectively). The small changes in litter chemistry in response to elevated [CO2] and tropospheric [O3] that we observed, combined with changes in litter biomass production, could significantly alter the inputs of N, soluble sugars, condensed tannins, soluble phenolics, cellulose and lignin to forest soils in the future.", "keywords": ["Nitrogen", "aspen", "carbon", "nutrient cycling", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Carbon", "Plant Leaves", "ozone", "Soil", "Wisconsin", "Ozone", "Populus", "litter", "FACE", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "CO2", "leaves", "Biomass", "soils", "Forest Sciences", "Betula", "Ecosystem"], "contacts": [{"organization": "Liu, Lingli, King, John S., Giardina, Christian P.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1093/treephys/25.12.1511"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/25.12.1511", "name": "item", "description": "10.1093/treephys/25.12.1511", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/25.12.1511"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-12-01T00:00:00Z"}}, {"id": "10.1046/j.1365-2745.1998.00278.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:00Z", "type": "Journal Article", "created": "2003-05-21", "title": "An Experimental Test Of Limits To Tree Establishment In Arctic Tundra", "description": "1 Five treeline species had low seed germination rates and low survivorship and growth of seedlings when transplanted into Alaskan tundra. Seed germination of all species increased with experimental warming, suggesting that the present treeline may in part result from unsuccessful recruitment under cold conditions.
2 Growth, biomass and survivorship of seedlings of treeline species transplanted into tundra were largely unaffected by experimental warming. However, transplanted seedlings of three species (Betula papyrifera, Picea glauca and Populus tremuloides) grew more when below\uffe2\uff80\uff90ground competition with the extant community was reduced. All three measures of transplant performance were greater in shrub tundra than in the less productive tussock or heath tundra. Establishment of trees in tundra may thus be prevented by low resource availability and competition.
3 Two species (Alnus crispa and Populus balsamifera) had low seed germination and survivorship of germinated seeds; transplants of these species did not respond to the manipulations and lost biomass following transplanting into tundra. Isolated populations of these two species north of the present treeline in arctic Alaska probably became established during mid\uffe2\uff80\uff90Holocene warming rather than in recent times.
4 Of all the species studied here, Picea glauca was the most likely to invade intact upland tundra. Its seeds had the highest germination rates and it was the only species whose seedlings survived subsequently. Furthermore, transplanted seedlings of Picea glauca had relatively high survivorship and positive growth in tundra, especially in treatments that increased air temperature or nutrient availability, two factors likely to increase with climate warming.
", "keywords": ["0106 biological sciences", "nutrient-availability", "air-temperature", "tundra", "-Alaska", "Betulaceae-: Dicotyledones-", "Arctic-tundra", "Coniferopsida-: Gymnospermae-", "natural-regeneration", "Environmental-Sciences)", "growth-", "01 natural sciences", "seedlings-", "Picea-glauca", "Betula-papyrifera", "tundra-", "soil-fertility", "Salicaceae-: Dicotyledones-", "Spermatophyta-", "treelines-", "Plantae-", "USA", "tree-establishment", "resource-availability", "Climatology- (Environmental-Sciences)", "Populus-balsamifera (Salicaceae-): seedling-", "Angiosperms-", "transplanting-", "Angiospermae-", "15. Life on land", "Plant-ecology:-communities", "Populus-balsamifera", "Betula-papyrifera (Betulaceae-): seedling-", "Populus-tremuloides", "climate-", "interspecific-competition", "germination", "Populus-tremuloides (Salicaceae-): seedling-", "Terrestrial-Ecology (Ecology-", "Picea-glauca (Coniferopsida-): seedling-", "Dicots-", "seed-germination", "Alnus-crispa", "plant-competition", "Alnus-crispa (Betulaceae-): seedling-", "survival-", "establishment-"]}, "links": [{"href": "https://doi.org/10.1046/j.1365-2745.1998.00278.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1046/j.1365-2745.1998.00278.x", "name": "item", "description": "10.1046/j.1365-2745.1998.00278.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1046/j.1365-2745.1998.00278.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1998-06-01T00:00:00Z"}}, {"id": "10.1093/treephys/24.11.1227", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:28Z", "type": "Journal Article", "created": "2012-01-20", "title": "Silver Birch And Climate Change: Variable Growth And Carbon Allocation Responses To Elevated Concentrations Of Carbon Dioxide And Ozone", "description": "We studied the effects of elevated concentrations of carbon dioxide ([CO2]) and ozone ([O3]) on growth, biomass allocation and leaf area of field-grown O3-tolerant (Clone 4) and O3-sensitive clones (Clone 80) of European silver birch (Betula pendula Roth) trees during 1999-2001. Seven-year-old trees of Clones 4 and 80 growing outside in open-top chambers were exposed for 3 years to the following treatments: outside control (OC); chamber control (CC); 2 x ambient [CO2] (EC); 2 x ambient [O3] (EO); and 2 x ambient [CO2] + 2 x ambient [O3] (EC+EO). When the results for the two clones were analyzed together, elevated [CO2] increased tree growth and biomass, but had no effect on biomass allocation. Total leaf area increased and leaf abscission was delayed in response to elevated [CO2]. Elevated [O3] decreased dry mass of roots and branches and mean leaf size and induced earlier leaf abscission in the autumn; otherwise, the effects of elevated [O3] were small across the clones. However, there were significant interactions between elevated [CO2] and elevated [O3]. When results for the clones were analyzed separately, stem diameter, volume growth and total biomass of Clone 80 were increased by elevated [CO2] and the stimulatory effects of elevated [CO2] on stem volume growth and total leaf area increased during the 3-year study. Clone 80 was unaffected by elevated [O3]. In Clone 4, elevated [O3] decreased root and branch biomass by 38 and 29%, respectively, whereas this clone showed few responses to elevated [CO2]. Elevated [CO2] significantly increased total leaf area in Clone 80 only, which may partly explain the smaller growth responses to elevated [CO2] of Clone 4 compared with Clone 80. Although we observed responses to elevated [O3], the responses to the EC+EO and EC treatments were similar, indicating that the trees only responded to elevated [O3] under ambient [CO2] conditions, perhaps reflecting a greater quantity of carbohydrates available for detoxification and repair in elevated [CO2].", "keywords": ["Greenhouse Effect", "Plant Leaves", "0106 biological sciences", "Ozone", "Plant Stems", "13. Climate action", "Biomass", "Carbon Dioxide", "15. Life on land", "01 natural sciences", "Betula", "Trees", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1093/treephys/24.11.1227"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/24.11.1227", "name": "item", "description": "10.1093/treephys/24.11.1227", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/24.11.1227"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-11-01T00:00:00Z"}}, {"id": "10.1093/treephys/tpab023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:28Z", "type": "Journal Article", "created": "2021-02-05", "title": "Seasonal and elevational variability in the induction of specialized compounds from mountain birch (Betula pubescens var. pumila) by winter moth larvae (Operophtera brumata).", "description": "AbstractThe mountain birch [Betula pubescens var. pumila (L.)] forest in the Subarctic is periodically exposed to insect outbreaks, which are expected to intensify due to climate change. To mitigate abiotic and biotic stresses, plants have evolved chemical defenses, including volatile organic compounds (VOCs) and non-volatile specialized compounds (NVSCs). Constitutive and induced production of these compounds, however, are poorly studied in Subarctic populations of mountain birch. Here, we assessed the joint effects of insect herbivory, elevation and season on foliar VOC emissions and NVSC contents of mountain birch. The VOCs were sampled in situ by an enclosure technique and analyzed by gas chromatography\uffe2\uff80\uff93mass spectrometry. NVSCs were analyzed by liquid chromatography\uffe2\uff80\uff93mass spectrometry using an untargeted approach. At low elevation, experimental herbivory by winter moth larvae (Operophtera brumata) increased emissions of monoterpenes and homoterpenes over the 3-week feeding period, and sesquiterpenes and green leaf volatiles at the end of the feeding period. At high elevation, however, herbivory augmented only homoterpene emissions. The more pronounced herbivory effects at low elevation were likely due to higher herbivory intensity. Of the individual compounds, linalool, ocimene, 4,8-dimethylnona-1,3,7-triene, 2-methyl butanenitrile and benzyl nitrile were among the most responsive compounds in herbivory treatments. Herbivory also altered foliar NVSC profiles at both low and high elevations, with the most responsive compounds likely belonging to fatty acyl glycosides and terpene glycosides. Additionally, VOC emissions from non-infested branches were higher at high than low elevation, particularly during the early season, which was mainly driven by phenological differences. The VOC emissions varied substantially over the season, largely reflecting the seasonal variations in temperature and light levels. Our results suggest that if insect herbivory pressure continues to rise in the mountain birch forest with ongoing climate change, it will significantly increase VOC emissions with important consequences for local trophic interactions and climate.
", "keywords": ["0301 basic medicine", "Volatile Organic Compounds", "0303 health sciences", "secondary metabolites", "VDP::Zoologiske og botaniske fag: 480", "plant\u2013insect interactions", "Moths", "15. Life on land", "geometrid moth", "Plant Leaves", "03 medical and health sciences", "biotic stress", "13. Climate action", "volatile organic compounds", "Larva", "8. Economic growth", "11. Sustainability", "VDP::Zoology and botany: 480", "Animals", "Herbivory", "Seasons", "global change", "Betula", "Research Paper"]}, "links": [{"href": "http://academic.oup.com/treephys/article-pdf/41/6/1019/38497290/tpab023.pdf"}, {"href": "https://doi.org/10.1093/treephys/tpab023"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/tpab023", "name": "item", "description": "10.1093/treephys/tpab023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/tpab023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-02-18T00:00:00Z"}}, {"id": "10.1093/treephys/27.11.1627", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:28Z", "type": "Journal Article", "created": "2011-11-18", "title": "Fine Root Morphological Adaptations In Scots Pine, Norway Spruce And Silver Birch Along A Latitudinal Gradient In Boreal Forests", "description": "Variability in short root morphology of the three main tree species of Europe's boreal forest (Norway spruce (Picea abies L. Karst.), Scots pine (Pinus sylvestris L.) and silver birch (Betula pendula Roth)) was investigated in four stands along a latitudinal gradient from northern Finland to southern Estonia. Silver birch and Scots pine were present in three stands and Norway spruce was present in all stands. For three fertile Norway spruce stands, fine root biomass and number of root tips per stand area or unit basal area were assessed from north to south. Principal component analysis indicated that short root morphology was significantly affected by tree species and site, which together explained 34.7% of the total variability. The range of variation in mean specific root area (SRA) was 51-74, 60-70 and 84-124 m(2) kg(-1) for Norway spruce, Scots pine and silver birch, respectively, and the corresponding ranges for specific root length were 37-47, 40-48 and 87-97 m g(-1). The range of variation in root tissue density of Norway spruce, Scots pine and silver birch was 113-182, 127-158 and 81-156 kg m(-3), respectively. Sensitivity of short root morphology to site conditions decreased in the order: Norway spruce > silver birch > Scots pine. Short root SRA increased with site fertility in all species. In Norway spruce, fine root biomass and number of root tips per m(2) decreased from north to south. The differences in morphological parameters among sites were significant but smaller than the site differences in fine root biomass and number of root tips.", "keywords": ["580", "Estonia", "0106 biological sciences", "570", "sopeutumisstrategiat", "Picea abies", "Pinus sylvestris", "04 agricultural and veterinary sciences", "15. Life on land", "Adaptation", " Physiological", "Plant Roots", "01 natural sciences", "juurten pituus", "Species Specificity", "hienojuuribiomassa", "Betula pendula", "0401 agriculture", " forestry", " and fisheries", "Picea", "Weather", "Betula", "Ecosystem", "Finland"], "contacts": [{"organization": "Ostonen, I., L\u00f5hmus, K., Helmisaari, H.-S., Truu, J., Meel, S.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1093/treephys/27.11.1627"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/27.11.1627", "name": "item", "description": "10.1093/treephys/27.11.1627", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/27.11.1627"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-11-01T00:00:00Z"}}, {"id": "10.1093/treephys/tpaa171", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:28Z", "type": "Journal Article", "created": "2020-12-19", "title": "Timing of spring xylogenesis in temperate deciduous tree species relates to tree growth characteristics and previous autumn phenology", "description": "AbstractWe explored the timing of spring xylogenesis and its potential drivers in homogeneous mature forest stands in a temperate European region. Three species with contrasting leaf development dynamics and wood anatomy were studied: European beech, silver birch and pedunculate oak. Detailed phenological observations of xylogenesis and leaf phenology were performed from summer 2017 until spring 2018. Cambium reactivation (CR) occurred before the buds of oak and birch were swollen, whereas these two phenological phases were concurrent for beech. On the other hand, initial earlywood vessels were fully differentiated (FDIEV) after leaf unfolding for all three species. Timing of CR was correlated to average ring-width of the last 10\uffc2\uffa0years (2008\uffe2\uff80\uff9317), tree diameter and, partially, with tree age. In addition, the timing of FDIEV was correlated to tree age and previous year\uffe2\uff80\uff99s autumn phenology, i.e., timing of wood growth cessation and onset of leaf senescence. Multivariate models could explain up to 68% of the variability of CR and 55% of the variability of FDIEV. In addition to the \uffe2\uff80\uff98species\uffe2\uff80\uff99 factor, the variability could be explained by ca 30% by tree characteristics and previous year\uffe2\uff80\uff99s autumn phenology for both CR and FDIEV. These findings are important to better identify which factors (other than environment) can be driving the onset of the growing season, and highlight the influence of tree growth characteristics and previous year\uffe2\uff80\uff99s phenology on spring wood phenology, wood formation and, potentially, forest production.
", "keywords": ["580", "0106 biological sciences", "Fagus sylvatica", "cambium", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "seasonal growth", "Trees", "hardwood species", "[SDE.BE] Environmental Sciences/Biodiversity and Ecology", "Plant Leaves", "Quercus", "Betula pendula", "Fagus", "0401 agriculture", " forestry", " and fisheries", "Seasons", "[SDE.BE]Environmental Sciences/Biodiversity and Ecology", "Quercus robur", "Biology"]}, "links": [{"href": "http://academic.oup.com/treephys/article-pdf/41/7/1161/38861331/tpaa171.pdf"}, {"href": "https://doi.org/10.1093/treephys/tpaa171"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/tpaa171", "name": "item", "description": "10.1093/treephys/tpaa171", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/tpaa171"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-12-24T00:00:00Z"}}, {"id": "10.1093/treephys/tpp079", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-25T16:18:29Z", "type": "Journal Article", "created": "2009-09-30", "title": "Low Moisture Availability Inhibits The Enhancing Effect Of Increased Soil Temperature On Net Photosynthesis Of White Birch (Betula Papyrifera) Seedlings Grown Under Ambient And Elevated Carbon Dioxide Concentrations", "description": "White birch (Betula papyrifera Marsh.) seedlings were grown under two carbon dioxide concentrations (ambient: 360 micromol mol(-1) and elevated: 720 micromol mol(-1)), three soil temperatures (5, 15 and 25 degrees C initially, increased to 7, 17 and 27 degrees C, respectively, 1 month later) and three moisture regimes (low: 30-40%; intermediate: 45-55% and high: 60-70% field water capacity) in greenhouses. In situ gas exchange and chlorophyll fluorescence were measured after 2 months of treatments. Net photosynthetic rate (A(n)) of seedlings grown under the intermediate and high moisture regimes increased from low to intermediate T(soil) and then decreased to high T(soil). There were no significant differences between the low and high T(soil), with the exception that A(n) was significantly higher under high than low T(soil) at the high moisture regime. No significant T(soil) effect on A(n) was observed at the low moisture regime. The intermediate T(soil) increased stomatal conductance (g(s)) only at intermediate and high but not at low moisture regime, whereas there were no significant differences between the low and high T(soil) treatments. Furthermore, the difference in g(s) between the intermediate and high T(soil) at high moisture regime was not statistically significant. The low moisture regime significantly reduced the internal to ambient CO2 concentration ratio at all T(soil). There were no significant individual or interactive effects of treatment on maximum carboxylation rate of Rubisco, light-saturated electron transport rate, triose phosphate utilization or potential photochemical efficiency of photosystem II. The results of this study suggest that soil moisture condition should be taken into account when predicting the responses of white birch to soil warming.", "keywords": ["0106 biological sciences", "0301 basic medicine", "Ribulose-Bisphosphate Carboxylase", "Temperature", "Water", "Carbon Dioxide", "15. Life on land", "01 natural sciences", "Soil", "03 medical and health sciences", "Seedlings", "Stress", " Physiological", "Photosynthesis", "Betula"], "contacts": [{"organization": "Qing-Lai Dang, Titus Fondo Ambebe,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1093/treephys/tpp079"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/tpp079", "name": "item", "description": "10.1093/treephys/tpp079", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/tpp079"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-09-28T00:00:00Z"}}, {"id": "10.1111/gcb.15722", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-25T16:18:46Z", "type": "Journal Article", "created": "2021-05-24", "title": "Reindeer control over subarctic treeline alters soil fungal communities with potential consequences for soil carbon storage", "description": "AbstractThe climate\uffe2\uff80\uff90driven encroachment of shrubs into the Arctic is accompanied by shifts in soil fungal communities that could contribute to a net release of carbon from tundra soils. At the same time, arctic grazers are known to prevent the establishment of deciduous shrubs and, under certain conditions, promote the dominance of evergreen shrubs. As these different vegetation types associate with contrasting fungal communities, the belowground consequences of climate change could vary among grazing regimes. Yet, at present, the impact of grazing on soil fungal communities and their links to soil carbon have remained speculative. Here we tested how soil fungal community composition, diversity and function depend on tree vicinity and long\uffe2\uff80\uff90term reindeer grazing regime and assessed how the fungal communities relate to organic soil carbon stocks in an alpine treeline ecotone in Northern Scandinavia. We determined soil carbon stocks and characterized soil fungal communities directly underneath and >3\uffc2\uffa0m away from mountain birches (Betula pubescens ssp. czerepanovii) in two adjacent 55\uffe2\uff80\uff90year\uffe2\uff80\uff90old grazing regimes with or without summer grazing by reindeer (Rangifer tarandus). We show that the area exposed to year\uffe2\uff80\uff90round grazing dominated by evergreen dwarf shrubs had higher soil C:N ratio, higher fungal abundance and lower fungal diversity compared with the area with only winter grazing and higher abundance of mountain birch. Although soil carbon stocks did not differ between the grazing regimes, stocks were positively associated with root\uffe2\uff80\uff90associated ascomycetes, typical to the year\uffe2\uff80\uff90round grazing regime, and negatively associated with free\uffe2\uff80\uff90living saprotrophs, typical to the winter grazing regime. These findings suggest that when grazers promote dominance of evergreen dwarf shrubs, they induce shifts in soil fungal communities that increase soil carbon sequestration in the long term. Thus, to predict climate\uffe2\uff80\uff90driven changes in soil carbon, grazer\uffe2\uff80\uff90induced shifts in vegetation and soil fungal communities need to be accounted for.Climate change increases the insect abundance, especially in Arctic ecosystems. Insect herbivory also significantly increases plant emissions of volatile organic compounds (VOCs), which are highly reactive in the atmosphere and play a crucial role in atmospheric chemistry and physics. However, it is unclear how the effects of insect herbivory on VOC emissions interact with climatic changes, such as warming and increased cloudiness. We assessed how experimental manipulations of temperature and light availability in subarctic tundra, that had been maintained for 30\uffc2\uffa0years at the time of the measurements, affect the VOC emissions from a widespread dwarf birch (Betula nana) when subjected to herbivory by local geometrid moth larvae, the autumnal moth (Epirrita autumnata) and the winter moth (Operophtera brumata). Warming and insect herbivory on B. nana stimulated VOC emission rates and altered the VOC blend. The herbivory\uffe2\uff80\uff90induced increase in sesquiterpene and homoterpene emissions were climate\uffe2\uff80\uff90treatment\uffe2\uff80\uff90dependent. Many herbivory\uffe2\uff80\uff90associated VOCs were more strongly induced in the shading treatment than in other treatments. We showed generally enhanced tundra VOC emissions upon insect herbivory and synergistic effects on the emissions of some VOC groups in a changing climate, which can have positive feedbacks on cloud formation. Furthermore, the acclimation of plants to long\uffe2\uff80\uff90term climate treatments affects VOC emissions and strongly interacts with plant responses to herbivory. Such acclimation complicates predictions of how climate change, together with interacting biotic stresses, affects VOC emissions in the high latitudes.
", "keywords": ["0301 basic medicine", "Volatile Organic Compounds", "0303 health sciences", "Insecta", "Climate Change", "15. Life on land", "Primary Research Articles", "03 medical and health sciences", "13. Climate action", "11. Sustainability", "Animals", "Herbivory", "Tundra", "Betula", "Ecosystem"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.15773"}, {"href": "https://doi.org/10.1111/gcb.15773"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/gcb.15773", "name": "item", "description": "10.1111/gcb.15773", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.15773"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-07-17T00:00:00Z"}}, {"id": "10.1111/j.1469-8137.2005.01557.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:59Z", "type": "Journal Article", "created": "2005-09-02", "title": "Tropospheric O3 Compromises Net Primary Production In Young Stands Of Trembling Aspen, Paper Birch And Sugar Maple In Response To Elevated Atmospheric Co2", "description": "Concentrations of atmospheric CO(2) and tropospheric ozone (O(3)) are rising concurrently in the atmosphere, with potentially antagonistic effects on forest net primary production (NPP) and implications for terrestrial carbon sequestration. Using free-air CO(2) enrichment (FACE) technology, we exposed north-temperate forest communities to concentrations of CO(2) and O(3) predicted for the year 2050 for the first 7 yr of stand development. Site-specific allometric equations were applied to annual nondestructive growth measurements to estimate above- and below-ground biomass and NPP for each year of the experiment. Relative to the control, elevated CO(2) increased total biomass 25, 45 and 60% in the aspen, aspen-birch and aspen-maple communities, respectively. Tropospheric O(3) caused 23, 13 and 14% reductions in total biomass relative to the control in the respective communities. Combined fumigation resulted in total biomass response of -7.8, +8.4 and +24.3% relative to the control in the aspen, aspen-birch and aspen-sugar maple communities, respectively. These results indicate that exposure to even moderate levels of O(3) significantly reduce the capacity of NPP to respond to elevated CO(2) in some forests.", "keywords": ["0106 biological sciences", "aspen", "carbon dioxide", "Acer", "Carbon Dioxide", "15. Life on land", "Wood", "01 natural sciences", "Carbon", "Plant Leaves", "ozone", "Wisconsin", "Ozone", "Populus", "13. Climate action", "pollution", "Biomass", "Forest Sciences", "global change", "Betula", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Kurt S. Pregitzer, Mark E. Kubiske, David F. Karnosky, George R. Hendrey, John S. King, John S. King, Christian P. Giardina, Vanessa S. Quinn, Evan P. McDonald,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1111/j.1469-8137.2005.01557.x"}, {"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/j.1469-8137.2005.01557.x", "name": "item", "description": "10.1111/j.1469-8137.2005.01557.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1469-8137.2005.01557.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-09-02T00:00:00Z"}}, {"id": "10.1111/j.1469-8137.2007.02204.x", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-07-25T16:18:59Z", "type": "Journal Article", "created": "2007-09-08", "title": "Fertilization Effects On Fineroot Biomass, Rhizosphere Microbes And Respiratory Fluxes In Hardwood Forest Soils", "description": "Fertilizer-induced reductions in CO(2) flux from soil ((F)CO(2)) in forests have previously been attributed to decreased carbon allocation to roots, and decreased decomposition as a result of nitrogen suppression of fungal activity. Here, we present evidence that decreased microbial respiration in the rhizosphere may also contribute to (F)CO(2) reductions in fertilized forest soils. Fertilization reduced (F)CO(2) by 16-19% in 65-yr-old plantations of northern red oak (Quercus rubra) and sugar maple (Acer saccharum), and in a natural 85-yr-old yellow birch (Betula allegheniensis) stand. In oak plots, fertilization had no effects on fine root biomass but reduced mycorrhizal colonization by 18% and microbial respiration by 43%. In maple plots, fertilization reduced root biomass, mycorrhizal colonization and microbial respiration by 22, 16 and 46%, respectively. In birch plots, fertilization reduced microbial respiration by 36%, but had variable effects on root biomass and mycorrhizal colonization. In plots of all three species, fertilization effects on microbial respiration were greater in rhizosphere than in bulk soil, possibly as a result of decreased rhizosphere carbon flux from these species in fertile soils. Because rhizosphere processes may influence nutrient availability and carbon storage in forest ecosystems, future research is needed to better quantify rhizo-microbial contributions to (F)CO(2).", "keywords": ["2. Zero hunger", "Cell Respiration", "Acer", "Forestry", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Plant Roots", "Carbon", "Trees", "Quercus", "Soil", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Fertilizers", "Betula", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/10.1111/j.1469-8137.2007.02204.x"}, {"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/j.1469-8137.2007.02204.x", "name": "item", "description": "10.1111/j.1469-8137.2007.02204.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1469-8137.2007.02204.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-09-05T00:00:00Z"}}, {"id": "10.1111/plb.12400", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:19:07Z", "type": "Journal Article", "created": "2015-09-25", "title": "Light Compensation Points In Shade-Grown Seedlings Of Deciduous Broadleaf Tree Species With Different Successional Traits Raised Under Elevated Co2", "description": "AbstractWe measured leaf photosynthetic traits in shade\uffe2\uff80\uff90grown seedlings of four tree species native to northern Japan, raised under an elevated CO2 condition, to investigate the effects of elevated CO2 on shade tolerance of deciduous broadleaf tree species with different successional traits. We considered Betula platyphylla var. japonica and Betula maximowicziana as pioneer species, Quercus mongolica var. crispula as a mid\uffe2\uff80\uff90successional species, and Acer mono as a climax species. The plants were grown under shade conditions (10% of full sunlight) in a CO2\uffe2\uff80\uff90regulated phytotron. Light compensation points (LCPs) decreased in all tree species when grown under elevated CO2 (720\uffc2\uffa0\uffce\uffbcmol\uffc2\uffb7mol\uffe2\uff88\uff921), which were accompanied by higher apparent quantum yields but no photosynthetic down\uffe2\uff80\uff90regulation. LCPs in Q.\uffc2\uffa0mongolica and A.\uffc2\uffa0mono grown under elevated CO2 were lower than those in the two pioneer birch species. The LCP in Q.\uffc2\uffa0mongolica seedlings was not different from that of A.\uffc2\uffa0mono in each CO2 treatment. However, lower dark respiration rates were observed in A.\uffc2\uffa0mono than in Q.\uffc2\uffa0mongolica, suggesting higher shade tolerance in A.\uffc2\uffa0mono as a climax species in relation to carbon loss at night. Thus, elevated CO2 may have enhanced shade tolerance by lowering LCPs in all species, but the ranking of shade tolerance related to successional traits did not change among species under elevated CO2, i.e. the highest shade tolerance was observed in the climax species (A.\uffc2\uffa0mono), followed by a gap\uffe2\uff80\uff90dependent species (Q.\uffc2\uffa0mongolica), while lower shade tolerance was observed in the pioneer species (B.\uffc2\uffa0platyphylla and B.\uffc2\uffa0maximowicziana).
", "keywords": ["0106 biological sciences", "CO2 enrichment", "photosynthesis", "Acclimatization", "Acer", "Carbon Dioxide", "15. Life on land", "650", "01 natural sciences", "Carbon", "Apparent quantum yield", "Trees", "shade tolerance", "Plant Leaves", "Quercus", "Phenotype", "Japan", "Seedlings", "Sunlight", "Photosynthesis", "dark respiration", "Betula"]}, "links": [{"href": "https://doi.org/10.1111/plb.12400"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/plb.12400", "name": "item", "description": "10.1111/plb.12400", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/plb.12400"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-10-11T00:00:00Z"}}, {"id": "10.1126/science.1113977", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:19:10Z", "type": "Journal Article", "created": "2005-08-25", "title": "Carbon Flux And Growth In Mature Deciduous Forest Trees Exposed To Elevated Co2", "description": "Whether rising atmospheric carbon dioxide (CO 2 ) concentrations will cause forests to grow faster and store more carbon is an open question. Using free air CO 2 release in combination with a canopy crane, we found an immediate and sustained enhancement of carbon flux through 35-meter-tall temperate forest trees when exposed to elevated CO 2 . However, there was no overall stimulation in stem growth and leaf litter production after 4 years. Photosynthetic capacity was not reduced, leaf chemistry changes were minor, and tree species differed in their responses. Although growing vigorously, these trees did not accrete more biomass carbon in stems in response to elevated CO 2 , thus challenging projections of growth responses derived from tests with smaller trees.
", "keywords": ["Carbon Isotopes", "Plant Stems", "Atmosphere", "Nitrogen", "0211 other engineering and technologies", "0207 environmental engineering", "02 engineering and technology", "Carbon Dioxide", "15. Life on land", "Lignin", "Carbon", "Trees", "Plant Leaves", "Quercus", "Soil", "Betulaceae", "13. Climate action", "Fagus", "Biomass", "Photosynthesis", "Ecosystem", "Plant Shoots", "Switzerland"]}, "links": [{"href": "https://doi.org/10.1126/science.1113977"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1126/science.1113977", "name": "item", "description": "10.1126/science.1113977", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1126/science.1113977"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-08-26T00:00:00Z"}}, {"id": "10.1139/x89-213", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:19:16Z", "type": "Journal Article", "created": "2008-01-08", "title": "The Effect Of Wildfire On Soil Chemistry In 4 Forest Types In Interior Alaska", "description": "Soil chemical properties were studied after a wildfire in stands of white spruce (Piceaglauca (Moench) Voss), black spruce (Piceamariana (Mill.) B.S.P.), paper birch (Betulapapyrifera Marsh.), and quaking aspen (Populustremuloides Michx.). Samples of the forest floor and surface 5\uffe2\uff80\uff82cm of mineral soil were collected from burned sites and unburned controls and analyzed soon after the fire. With the exception of soil pH, effects of the fire on soil chemistry differed among the four forest types. Generally, amounts of exchangeable K, Ca, and Mg did not appreciably increase in the forest floor and surface mineral soil except in heavily burned areas in white spruce and black spruce. Fire reduced amounts of N by about 50% in white spruce, aspen, and birch forest floors. In black spruce, quantities of N were slightly higher in heavily burned locations. Forest floor C:N ratios were substantially lower in heavily burned locations in white spruce and black spruce than in unburned controls. Burning did not have a marked influence on supplies of available P in the forest floor, except in heavily burned black spruce, where average amounts were 12.50\uffe2\uff80\uff82g/m2 versus only 0.46\uffe2\uff80\uff82g/m2 in the control. Burning caused more moderate gains in available P in surface mineral soils under aspen and white spruce. We concluded that fire caused marked short-term changes in soil chemistry in the four forest types. How long these changes will persist is unknown.
", "keywords": ["Spermatophyta", "Angiosperms", "PH", "Coniferopsida: Gymnospermae", "Betula Papyrifera", "Gymnosperms", "01 natural sciences", "Dicots", "Picea Mariana", "Picea Glauca", "Populus Tremuloides", "Betulaceae: Dicotyledones", "Spermatophytes", "Magnesium", "Plantae", "Forest Sciences", "0105 earth and related environmental sciences", "Plant Carbon Nitrogen Ratio", "Vascular Plants", "Salicaceae: Dicotyledones", "Phosphorus", "Forestry", "04 agricultural and veterinary sciences", "Plants", "15. Life on land", "Angiospermae", "Potassium", "0401 agriculture", " forestry", " and fisheries", "Calcium"], "contacts": [{"organization": "Dyrness, D.T., Van Cleve, K., Levison, J.D.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1139/x89-213"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Canadian%20Journal%20of%20Forest%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1139/x89-213", "name": "item", "description": "10.1139/x89-213", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1139/x89-213"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1989-11-01T00:00:00Z"}}, {"id": "10.1371/journal.pone.0153415", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:19:34Z", "type": "Journal Article", "created": "2016-04-12", "title": "Seasonality, Rather Than Nutrient Addition Or Vegetation Types, Influenced Short-Term Temperature Sensitivity Of Soil Organic Carbon Decomposition", "description": "Open AccessLa r\u00e9ponse de la respiration microbienne de la d\u00e9composition du carbone organique du sol (COS) aux changements environnementaux joue un r\u00f4le cl\u00e9 dans la pr\u00e9diction des tendances futures de la concentration de CO2 atmosph\u00e9rique. Cependant, il n'est pas certain qu'il existe une tendance universelle dans la r\u00e9ponse de la respiration microbienne \u00e0 l'augmentation de la temp\u00e9rature et \u00e0 l'ajout de nutriments parmi les diff\u00e9rents types de v\u00e9g\u00e9tation. Dans cette \u00e9tude, les sols ont \u00e9t\u00e9 \u00e9chantillonn\u00e9s au printemps, en \u00e9t\u00e9, en automne et en hiver \u00e0 partir de cinq types de v\u00e9g\u00e9tation dominants, y compris les for\u00eats de pins, de m\u00e9l\u00e8zes et de bouleaux, les arbustes et les prairies, dans la r\u00e9gion de Saihanba, dans le nord de la Chine. Les \u00e9chantillons de sol de chaque saison ont \u00e9t\u00e9 incub\u00e9s \u00e0 1, 10 et 20 \u00b0C pendant 5 \u00e0 7 jours. L'azote (N\u00a0; 0,035 mM sous forme de NH4NO3) et le phosphore (P\u00a0; 0,03 mM sous forme de P2O5) ont \u00e9t\u00e9 ajout\u00e9s aux \u00e9chantillons de sol, et les r\u00e9ponses de la respiration microbienne du sol \u00e0 l'augmentation de la temp\u00e9rature et \u00e0 l'ajout de nutriments ont \u00e9t\u00e9 d\u00e9termin\u00e9es. Nous avons constat\u00e9 une tendance universelle selon laquelle la respiration microbienne du sol augmentait avec l'augmentation de la temp\u00e9rature, ind\u00e9pendamment de la saison d'\u00e9chantillonnage ou du type de v\u00e9g\u00e9tation. La sensibilit\u00e9 \u00e0 la temp\u00e9rature (indiqu\u00e9e par Q10, l'augmentation du taux de respiration avec une augmentation de 10\u00b0C de la temp\u00e9rature) de la respiration microbienne \u00e9tait plus \u00e9lev\u00e9e au printemps et en automne qu'en \u00e9t\u00e9 et en hiver, quel que soit le type de v\u00e9g\u00e9tation. Le Q10 \u00e9tait significativement corr\u00e9l\u00e9 positivement avec la biomasse microbienne et le rapport champignon\u00a0: bact\u00e9rie. La respiration microbienne (ou Q10) n'a pas r\u00e9pondu de mani\u00e8re significative \u00e0 l'addition d'azote ou de phosphore. Nos r\u00e9sultats sugg\u00e8rent que l'apport en nutriments \u00e0 court terme pourrait ne pas modifier le taux de d\u00e9composition du COS ou sa sensibilit\u00e9 \u00e0 la temp\u00e9rature, alors que l'augmentation de la temp\u00e9rature pourrait am\u00e9liorer consid\u00e9rablement la d\u00e9composition du COS au printemps et en automne, par rapport \u00e0 l'hiver et \u00e0 l'\u00e9t\u00e9.", "keywords": ["Biomass (ecology)", "Atmospheric Science", "Microbial population biology", "Larix", "Carbon Dynamics in Peatland Ecosystems", "Forests", "Agricultural and Biological Sciences", "Soil", "Soil water", "Pathology", "Carbon Feedback", "Biomass", "Betula", "Soil Microbiology", "2. Zero hunger", "Ecology", "Q10", "Respiration", "Q", "R", "Temperature", "Life Sciences", "Soil respiration", "04 agricultural and veterinary sciences", "Soil carbon", "Grassland", "Earth and Planetary Sciences", "Physical Sciences", "Respiration rate", "Medicine", "Seasons", "Vegetation (pathology)", "Research Article", "China", "Nitrogen", "Science", "Soil Science", "Environmental science", "Shrubland", "Genetics", "Arctic Permafrost Dynamics and Climate Change", "Soil Carbon Sequestration", "Biology", "Ecosystem", "Soil science", "Soil organic matter", "Soil Fertility", "Bacteria", "Fungi", "Botany", "15. Life on land", "Pinus", "Vegetation Change", "Carbon", "Agronomy", "13. Climate action", "FOS: Biological sciences", "Environmental Science", "Growing season", "0401 agriculture", " forestry", " and fisheries", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems", "Nutrient"], "contacts": [{"organization": "Yu-Qi Qian, Fangliang He, Wei Wang,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1371/journal.pone.0153415"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLOS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371/journal.pone.0153415", "name": "item", "description": "10.1371/journal.pone.0153415", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371/journal.pone.0153415"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-04-12T00:00:00Z"}}, {"id": "10.1890/06-1819.1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:20:01Z", "type": "Journal Article", "created": "2007-10-23", "title": "Atmospheric Co2 And O-3 Alter The Flow Of N-15 In Developing Forest Ecosystems", "description": "Anthropogenic O3 and CO2-induced declines in soil N availability could counteract greater plant growth in a CO2-enriched atmosphere, thereby reducing net primary productivity (NPP) and the potential of terrestrial ecosystems to sequester anthropogenic CO2. Presently, it is uncertain how increasing atmospheric CO2 and O3 will alter plant N demand and the acquisition of soil N by plants as well as the microbial supply of N from soil organic matter. To address this uncertainty, we initiated an ecosystem-level 15N tracer experiment at the Rhinelander (Wisconsin, USA) free air CO2-O3 enrichment (FACE) facility to understand how projected increases in atmospheric CO2 and 03 alter the distribution and flow of N in developing northern temperate forests. Tracer amounts of 15NH4+ were applied to the forest floor of developing Populus tremuloides and P. tremuloides-Betula papyrifera communities that have been exposed to factorial CO2 and O3 treatments for seven years. One year after isotope addition, both forest communities exposed to elevated CO2 obtained greater amounts of 15N (29%) and N (40%) from soil, despite no change in soil N availability or plant N-use efficiency. As such, elevated CO2 increased the ability of plants to exploit soil for N, through the development of a larger root system. Conversely, elevated O3 decreased the amount of 15N (-15%) and N (-29%) in both communities, a response resulting from lower rates of photosynthesis, decreases in growth, and smaller root systems that acquired less soil N. Neither CO2 nor 03 altered the amount of N or 15N recovery in the forest floor, microbial biomass, or soil organic matter. Moreover, we observed no interaction between CO2 and 03 on the amount of N or 15N in any ecosystem pool, suggesting that 03 could exert a negative effect regardless of CO2 concentration. In a CO2-enriched atmosphere, greater belowground growth and a more thorough exploitation of soil for growth-limiting N is an important mechanism sustaining the enhancement of NPP in developing forests (0-8 years following establishment). However, as CO2 accumulates in the Earth's atmosphere, future O3 concentrations threaten to diminish the enhancement of plant growth, decrease plant N acquisition, and lessen the storage of anthropogenic C in temperate forests.", "keywords": ["0106 biological sciences", "Nitrogen", "Science", "Ecology and Evolutionary Biology", "Plant Roots", "01 natural sciences", "forest floor", "Soil", "developing forest", "Wisconsin", "atmospheric O3", "Ozone", "soil organic matter", "Populus tremuloides", "Biomass", "USA", "Ecosystem", "Soil Microbiology", "atmospheric CO2", "Nitrogen Isotopes", "15N", "plant N uptake", "microbial immobilization", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "root system size", "Populus", "N cycling", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Betula papyrifera"]}, "links": [{"href": "https://doi.org/10.1890/06-1819.1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1890/06-1819.1", "name": "item", "description": "10.1890/06-1819.1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1890/06-1819.1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-10-01T00:00:00Z"}}, {"id": "10.2134/jeq2010.0145", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:20:14Z", "type": "Journal Article", "created": "2011-04-26", "description": "Soil particle size and land management practices are known to have considerable infl uence on carbon (C) storage in soils, but such information is lacking for silvopastoral systems in Spain. Th is study quantifi ed the amounts of soil C stored at various depths to 100 cm under ilvopastoral plots of radiata pine (Pinus radiata D. Don) and birch (Betula pendula Roth) in comparison to treeless pasture in Galicia, Spain. Soils were fractionated into three size classes (<53, 53\u2013250, and 250\u20132000 \u03bcm), and C stored in them and in the whole (nonfractionated) soil was determined. Overall, the C stock to 1 m ranged from 80.9 to 176.9 Mg ha\u22121 in these soils. Up to 1 m depth, 78.82% of C was found in the 0- to 25-cm soil depth, with 12.9, 4.92, and 3.36% in the 25- to 50-, 50- to 75-, and 75- to 100-cm depths, respectively. Soils under birch at 0 to 25 cm stored more C in the 250- to 2000-\u03bcm size class as compared with those under adiata pine; at that depth, pasture had more C than pine silvopasture in the smaller soil fractions (<53 and 53\u2013250 \u03bcm). In the 75- to 100-cm depth, there was signifi cantly more storage of C in the 250- to 2000-\u03bcm fraction in both silvopastures as compared with the pasture. Th e higher storage of soil C in larger fraction size in lower soil depths of silvopasture suggests that planting of trees into traditional agricultural landscapes will promote longer-term storage of C in the soil.", "keywords": ["2. Zero hunger", "Carbon Sequestration", "organic carbon.", "Agriculture", "04 agricultural and veterinary sciences", "15. Life on land", "Pinus", "Carbon", "Trees", "soil", "Soil", "Species Specificity", "Spain", "0401 agriculture", " forestry", " and fisheries", "Particle Size", "Fertilizers", "Betula", "Environmental Monitoring"]}, "links": [{"href": "https://doi.org/10.2134/jeq2010.0145"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Environmental%20Quality", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2134/jeq2010.0145", "name": "item", "description": "10.2134/jeq2010.0145", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2134/jeq2010.0145"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-05-01T00:00:00Z"}}, {"id": "10.5061/dryad.8382j4r", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:21:31Z", "type": "Dataset", "title": "Data from: Spatial variation and linkages of soil and vegetation in the Siberian Arctic tundra \u2013 coupling field observations with remote sensing data", "description": "unspecifiedPlant, soil and remote sensing attributes of a Siberian Arctic sitePlant and soil data of study plots were collected in the field in summer 2014. NDVI and topographical attributes were later extracted from three satellite images, portraying the field site and vegetation in three different years at 180, 220 and 750 DD (growing degree days with 0 C threshold). Plant species presence (1 in data) and absence (0 in data) in study plots is available for dicotyledonous vascular plants. Land cover types are based on ground-based visual judgement.Mikola et al. 2018_Biogeosciences.xlsx", "keywords": ["Vascular plant", "Satellite image", "soil temperature", "reflectance", "Permafrost", "spatial variation", "Spatial extrapolation", "Salix", "15. Life on land", "Betula nana", "moss", "Ecosystem carbon exchange", "LAI", "Sphagnum", "Carex", "Eriophorum", "13. Climate action", "Land cover type"], "contacts": [{"organization": "Mikola, Juha, Virtanen, Tarmo, Linkosalmi, Maiju, V\u00e4h\u00e4, Emmi, Nyman, Johanna, Postanogova, Olga, R\u00e4s\u00e4nen, Aleksi, Kotze, D. Johan, Laurila, Tuomas, Juutinen, Sari, Kondratyev, Vladimir, Aurela, Mika,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.8382j4r"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.8382j4r", "name": "item", "description": "10.5061/dryad.8382j4r", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.8382j4r"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-05-04T00:00:00Z"}}, {"id": "3163993851", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-25T16:26:21Z", "type": "Journal Article", "created": "2021-05-24", "title": "Reindeer control over subarctic treeline alters soil fungal communities with potential consequences for soil carbon storage", "description": "AbstractThe climate\uffe2\uff80\uff90driven encroachment of shrubs into the Arctic is accompanied by shifts in soil fungal communities that could contribute to a net release of carbon from tundra soils. At the same time, arctic grazers are known to prevent the establishment of deciduous shrubs and, under certain conditions, promote the dominance of evergreen shrubs. As these different vegetation types associate with contrasting fungal communities, the belowground consequences of climate change could vary among grazing regimes. Yet, at present, the impact of grazing on soil fungal communities and their links to soil carbon have remained speculative. Here we tested how soil fungal community composition, diversity and function depend on tree vicinity and long\uffe2\uff80\uff90term reindeer grazing regime and assessed how the fungal communities relate to organic soil carbon stocks in an alpine treeline ecotone in Northern Scandinavia. We determined soil carbon stocks and characterized soil fungal communities directly underneath and >3\uffc2\uffa0m away from mountain birches (Betula pubescens ssp. czerepanovii) in two adjacent 55\uffe2\uff80\uff90year\uffe2\uff80\uff90old grazing regimes with or without summer grazing by reindeer (Rangifer tarandus). We show that the area exposed to year\uffe2\uff80\uff90round grazing dominated by evergreen dwarf shrubs had higher soil C:N ratio, higher fungal abundance and lower fungal diversity compared with the area with only winter grazing and higher abundance of mountain birch. Although soil carbon stocks did not differ between the grazing regimes, stocks were positively associated with root\uffe2\uff80\uff90associated ascomycetes, typical to the year\uffe2\uff80\uff90round grazing regime, and negatively associated with free\uffe2\uff80\uff90living saprotrophs, typical to the winter grazing regime. These findings suggest that when grazers promote dominance of evergreen dwarf shrubs, they induce shifts in soil fungal communities that increase soil carbon sequestration in the long term. Thus, to predict climate\uffe2\uff80\uff90driven changes in soil carbon, grazer\uffe2\uff80\uff90induced shifts in vegetation and soil fungal communities need to be accounted for.The climate\uffe2\uff80\uff90driven encroachment of shrubs into the Arctic is accompanied by shifts in soil fungal communities that could contribute to a net release of carbon from tundra soils. At the same time, arctic grazers are known to prevent the establishment of deciduous shrubs and, under certain conditions, promote the dominance of evergreen shrubs. As these different vegetation types associate with contrasting fungal communities, the belowground consequences of climate change could vary among grazing regimes. Yet, at present, the impact of grazing on soil fungal communities and their links to soil carbon have remained speculative. Here we tested how soil fungal community composition, diversity and function depend on tree vicinity and long\uffe2\uff80\uff90term reindeer grazing regime and assessed how the fungal communities relate to organic soil carbon stocks in an alpine treeline ecotone in Northern Scandinavia. We determined soil carbon stocks and characterized soil fungal communities directly underneath and >3\uffc2\uffa0m away from mountain birches (Betula pubescens ssp. czerepanovii) in two adjacent 55\uffe2\uff80\uff90year\uffe2\uff80\uff90old grazing regimes with or without summer grazing by reindeer (Rangifer tarandus). We show that the area exposed to year\uffe2\uff80\uff90round grazing dominated by evergreen dwarf shrubs had higher soil C:N ratio, higher fungal abundance and lower fungal diversity compared with the area with only winter grazing and higher abundance of mountain birch. Although soil carbon stocks did not differ between the grazing regimes, stocks were positively associated with root\uffe2\uff80\uff90associated ascomycetes, typical to the year\uffe2\uff80\uff90round grazing regime, and negatively associated with free\uffe2\uff80\uff90living saprotrophs, typical to the winter grazing regime. These findings suggest that when grazers promote dominance of evergreen dwarf shrubs, they induce shifts in soil fungal communities that increase soil carbon sequestration in the long term. Thus, to predict climate\uffe2\uff80\uff90driven changes in soil carbon, grazer\uffe2\uff80\uff90induced shifts in vegetation and soil fungal communities need to be accounted for.