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": "10.1080/02827580410024124", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:18:46Z", "type": "Journal Article", "created": "2004-05-27", "title": "Effect Of Wood Ash Fertilization On Soil Chemical Properties And Stand Nutrient Status And Growth Of Some Coniferous Stands In Finland", "description": "The effects of wood ash or wood ash plus nitrogen (N) fertilization on soil chemical properties, needle nutrient concentrations and tree growth were studied in five coniferous stands, aged 31\u201375 yrs, after 5 and 10 yrs. In each experiment 3 t ha\u22121 of loose wood ash was applied to three replicated plots (30\u00d730 m). In three of the experiments 120\u2013150 kg N ha\u22121 was applied together with the same wood ash (WAN). These three experiments also included a stand-specific fertilization (SSF) treatment, which consisted of 120, 150 or 180 kg N ha\u22121. Five years after wood ash or WAN application the pH increase in the humus layer was 1\u20131.7 pH-units and in the 0\u20135 cm mineral soil layer 0.3\u20130.4 pH-units. The increase was approximately the same 10 yrs after application, and was also associated with an increase in pH in the 5\u201310 cm mineral soil layer. Wood ash or WAN significantly increased both the total and extractable calcium and magnesium concentrations in the humus layer on all the sites. Wood ash or WAN had an increa...", "keywords": ["0106 biological sciences", "2. Zero hunger", "puuntuhka", "330", "Picea abies", "0401 agriculture", " forestry", " and fisheries", "Pinus sylvestris", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "Saarsalmi, A., M\u00e4lk\u00f6nen, E., Kukkola, M.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1080/02827580410024124"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scandinavian%20Journal%20of%20Forest%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1080/02827580410024124", "name": "item", "description": "10.1080/02827580410024124", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1080/02827580410024124"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-06-01T00:00:00Z"}}, {"id": "10.1093/treephys/27.11.1627", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:19:01Z", "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/tpq080", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:19:01Z", "type": "Journal Article", "created": "2010-10-18", "title": "Green Spruce Aphid Infestations Cause Larger Growth Reductions To Sitka Spruce Under Shade", "description": "Light availability and infestation by the green spruce aphid (Elatobium abietinum) are key factors affecting the growth of Sitka spruce (Picea sitchensis) seedlings under a mature tree canopy, but their combined effect on seedling growth has not previously been quantified. A controlled outdoor experiment in which light levels (high light (HL): 100%, intermediate light (IL): 24%) and aphid infestation (absence/presence) were manipulated was conducted over 2 years to look at the effects on seedling growth and biomass distribution patterns. Aphid population assessments showed a significantly increased population density under IL, with three to four times higher cumulative aphid densities than that under HL. Defoliation rates of infested seedlings were directly related to aphid density. Total seedling biomass was strongly reduced in IL, and aphid infestation caused additional reductions in the biomass of particular components of the seedlings. Dry weight (DW) of older (\u22651-year-old) needles in infested trees was significantly decreased in both years. Total root DW at the end of the second year was significantly affected by aphid infestation, and the reduction (14-18%) was similar in IL and HL treatments despite large differences in aphid density. Biomass distribution patterns in infested trees were similar to that of uninfested trees within each light treatment, indicating that the relative decreases in root biomass were accompanied by similar reductions in distribution to the above-ground parts of the seedlings. Leader extension growth of infested seedlings was reduced by 15-17% compared with uninfested seedlings under IL, whereas only a 2-3% reduction in leader extension of infested seedlings under HL was observed. The results showed that the response of seedlings to E. abietinum were primarily dependent on the light environment. The significant reduction caused by aphids on the total DW of older needles and roots, and on leader extension growth, does suggest the potential for effects to accumulate over time.", "keywords": ["Population Density", "0106 biological sciences", "Time Factors", "Light", "15. Life on land", "Plant Roots", "01 natural sciences", "Host-Parasite Interactions", "Plant Leaves", "Seedlings", "13. Climate action", "Aphids", "Animals", "Biomass", "Picea", "Ecosystem"]}, "links": [{"href": "https://doi.org/10.1093/treephys/tpq080"}, {"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/tpq080", "name": "item", "description": "10.1093/treephys/tpq080", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/tpq080"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-10-12T00:00:00Z"}}, {"id": "10.1111/gcb.12161", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:19:20Z", "type": "Journal Article", "created": "2013-02-06", "title": "Enhanced Root Exudation Stimulates Soil Nitrogen Transformations In A Subalpine Coniferous Forest Under Experimental Warming", "description": "AbstractDespite the perceived importance of exudation to forest ecosystem function, few studies have attempted to examine the effects of elevated temperature and nutrition availability on the rates of root exudation and associated microbial processes. In this study, we performed an experiment in whichin situexudates were collected fromPicea asperataseedlings that were transplanted in disturbed soils exposed to two levels of temperature (ambient temperature and infrared heater warming) and two nitrogen levels (unfertilized and 25\uffc2\uffa0g N\uffc2\uffa0m\uffe2\uff88\uff922\uffc2\uffa0a\uffe2\uff88\uff921). Here, we show that the trees exposed to an elevated temperature increased their exudation rates I (\uffce\uffbcg\uffc2\uffa0C\uffc2\uffa0g\uffe2\uff88\uff921root biomass\uffc2\uffa0h\uffe2\uff88\uff921), II (\uffce\uffbcg\uffc2\uffa0C\uffc2\uffa0cm\uffe2\uff88\uff921\uffc2\uffa0root length\uffc2\uffa0h\uffe2\uff88\uff921) and III (\uffce\uffbcg\uffc2\uffa0C\uffc2\uffa0cm\uffe2\uff88\uff922\uffc2\uffa0root area\uffc2\uffa0h\uffe2\uff88\uff921) in the unfertilized plots. The altered morphological and physiological traits of the roots exposed to experimental warming could be responsible for this variation in root exudation. Moreover, these increases in root\uffe2\uff80\uff90derived C were positively correlated with the microbial release of extracellular enzymes involved in the breakdown of organic N (R2\uffc2\uffa0=\uffc2\uffa00.790;P\uffc2\uffa0=\uffc2\uffa00.038), which was coupled with stimulated microbial activity and accelerated N transformations in the unfertilized soils. In contrast, the trees exposed to both experimental warming and N fertilization did not show increased exudation rates or soil enzyme activity, indicating that the stimulatory effects of experimental warming on root exudation depend on soil fertility. Collectively, our results provide preliminary evidence that an increase in the release of root exudates into the soil may be an important physiological adjustment by which the sustained growth responses of plants to experimental warming may be maintained via enhanced soil microbial activity and soil N transformation. Accordingly, the underlying mechanisms by which plant root\uffe2\uff80\uff90microbe interactions influence soil organic matter decomposition and N cycling should be incorporated into climate\uffe2\uff80\uff90carbon cycle models to determine reliable estimates of long\uffe2\uff80\uff90term C storage in forests.
", "keywords": ["2. Zero hunger", "China", "Soil", "Plant Exudates", "0401 agriculture", " forestry", " and fisheries", "Biomass", "04 agricultural and veterinary sciences", "Models", " Theoretical", "Nitrogen Cycle", "Picea", "15. Life on land", "Global Warming", "Plant Roots"], "contacts": [{"organization": "Juan Xiao, Huajun Yin, Zhenfeng Xu, Xinyin Cheng, Yufei Li, Qing Liu,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1111/gcb.12161"}, {"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.12161", "name": "item", "description": "10.1111/gcb.12161", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.12161"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-04-18T00:00:00Z"}}, {"id": "10.1111/gcb.12666", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:19:20Z", "type": "Journal Article", "created": "2014-06-21", "title": "Interactive Effects Of Elevated Co2 And Nitrogen Deposition On Fatty Acid Molecular And Isotope Composition Of Above- And Belowground Tree Biomass And Forest Soil Fractions", "description": "AbstractAtmospheric carbon dioxide (CO2) and reactive nitrogen (N) concentrations have been increasing due to human activities and impact the global carbon (C) cycle by affecting plant photosynthesis and decomposition processes in soil. Large amounts of C are stored in plants and soils, but the mechanisms behind the stabilization of plant\uffe2\uff80\uff90 and microbial\uffe2\uff80\uff90derived organic matter (OM) in soils are still under debate and it is not clear how N deposition affects soil OM dynamics. Here, we studied the effects of 4\uffc2\uffa0years of elevated (13C\uffe2\uff80\uff90depleted) CO2 and N deposition in forest ecosystems established in open\uffe2\uff80\uff90top chambers on composition and turnover of fatty acids (FAs) in plants and soils. FAs served as biomarkers for plant\uffe2\uff80\uff90 and microbial\uffe2\uff80\uff90derived OM in soil density fractions. We analyzed above\uffe2\uff80\uff90 and belowground plant biomass of beech and spruce trees as well as soil density fractions for the total organic C and FA molecular and isotope (\uffce\uffb413C) composition. FAs did not accumulate relative to total organic C in fine mineral fractions, showing that FAs are not effectively stabilized by association with soil minerals. The \uffce\uffb413C values of FAs in plant biomass increased under high N deposition. However, the N effect was only apparent under elevated CO2 suggesting a N limitation of the system. In soil fractions, only isotope compositions of short\uffe2\uff80\uff90chain FAs (C16+18) were affected. Fractions of \uffe2\uff80\uff98new\uffe2\uff80\uff99 (experimental\uffe2\uff80\uff90derived) FAs were calculated using isotope depletion in elevated CO2 plots and decreased from free light to fine mineral fractions. \uffe2\uff80\uff98New\uffe2\uff80\uff99 FAs were higher in short\uffe2\uff80\uff90chain compared to long\uffe2\uff80\uff90chain FAs (C20\uffe2\uff88\uff9230), indicating a faster turnover of short\uffe2\uff80\uff90chain compared to long\uffe2\uff80\uff90chain FAs. Increased N deposition did not significantly affect the quantity of \uffe2\uff80\uff98new\uffe2\uff80\uff99 FAs in soil fractions, but showed a tendency of increased amounts of \uffe2\uff80\uff98old\uffe2\uff80\uff99 (pre\uffe2\uff80\uff90experimental) C suggesting that decomposition of \uffe2\uff80\uff98old\uffe2\uff80\uff99 C is retarded by high N inputs.
", "keywords": ["UFSP13-8 Global Change and Biodiversity", "2306 Global and Planetary Change", "Chemical Fractionation", "Forests", "2300 General Environmental Science", "Soil", "Fagus", "Environmental Chemistry", "Biomass", "Photosynthesis", "Picea", "General Environmental Science", "2. Zero hunger", "Global and Planetary Change", "Analysis of Variance", "Carbon Isotopes", "Ecology", "Atmosphere", "Fatty Acids", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Reactive Nitrogen Species", "13. Climate action", "2304 Environmental Chemistry", "570 Life sciences; biology", "0401 agriculture", " forestry", " and fisheries", "2303 Ecology"]}, "links": [{"href": "https://doi.org/10.1111/gcb.12666"}, {"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.12666", "name": "item", "description": "10.1111/gcb.12666", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.12666"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-07-08T00:00:00Z"}}, {"id": "10.1111/j.1365-2486.2008.01755.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:19:33Z", "type": "Journal Article", "created": "2008-12-11", "title": "Stem Wood Properties Of Mature Norway Spruce After 3 Years Of Continuous Exposure To Elevated [Co2] And Temperature", "description": "AbstractThe objective of the study was to investigate the interactive effects of elevated atmospheric carbon dioxide concentration, [CO2], and temperature on the wood properties of mature field\uffe2\uff80\uff90grown Norway spruce (Picea abies (L.) Karst.) trees. Material for the study was obtained from an experiment in Flakaliden, northern Sweden, where trees were grown for 3 years in whole\uffe2\uff80\uff90tree chambers at ambient (365\uffe2\uff80\uff83\uffce\uffbcmol\uffe2\uff80\uff83mol\uffe2\uff88\uff921) or elevated [CO2] (700\uffe2\uff80\uff83\uffce\uffbcmol\uffe2\uff80\uff83mol\uffe2\uff88\uff921) and ambient or elevated air temperature (ambient +5.6\uffe2\uff80\uff83\uffc2\uffb0C in winter and ambient +2.8\uffe2\uff80\uff83\uffc2\uffb0C in summer). Elevated temperature affected both wood chemical composition and structure, but had no effect on stem radial growth. Elevated temperature decreased the concentrations of acetone\uffe2\uff80\uff90soluble extractives and soluble sugars, while mean and earlywood (EW) cell wall thickness and wood density were increased. Elevated [CO2] had no effect on stem wood chemistry or radial growth. In wood structure, elevated [CO2] decreased EW cell wall thickness and increased tracheid radial diameter in latewood (LW). Some significant interactions between elevated [CO2] and temperature were found in the anatomical and physical properties of stem wood (e.g. microfibril angle, and LW cell wall thickness and density). Our results show that the wood material properties of mature Norway spruce were altered under exposure to elevated [CO2] and temperature, although stem radial growth was not affected by the treatments.
", "keywords": ["karkeus", "580", "0106 biological sciences", "kimmomoduuli", "Picea abies", "mikrofibrillikulma", "puun tiheys", "15. Life on land", "01 natural sciences", "630", "puun anatomia", "13. Climate action", "trakeidit", "SilviScan", "ilmastonmuutos", "puun kemia"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-2486.2008.01755.x"}, {"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/j.1365-2486.2008.01755.x", "name": "item", "description": "10.1111/j.1365-2486.2008.01755.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2486.2008.01755.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-01-16T00:00:00Z"}}, {"id": "10.1111/j.1399-3054.2008.01138.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:19:37Z", "type": "Journal Article", "created": "2008-05-26", "title": "Adjustments Of Water Use Efficiency By Stomatal Regulation During Drought And Recovery In The Drought-Adaptedvitishybrid Richter-110 (V.\u2003Berlandieri\u2003\u00d7\u2003V.\u2003Rupestris)", "description": "The hybrid Richter\uffe2\uff80\uff90110 (Vitis berlandieri\uffe2\uff80\uff83\uffc3\uff97\uffe2\uff80\uff83Vitis rupestris) (R\uffe2\uff80\uff90110) has the reputation of being a genotype strongly adapted to drought. A study was performed with plants of R\uffe2\uff80\uff90110 subjected to water withholding followed by re\uffe2\uff80\uff90watering. The goal was to analyze how stomatal conductance (gs) is regulated with respect to different physiological variables under water stress and recovery, as well as how water stress affects adjustments of water use efficiency (WUE) at the leaf level. Water stress induced a substantial stomatal closure and an increase in WUE, which persisted many days after re\uffe2\uff80\uff90watering. The gs during water stress was mainly related to the content of ABA in the xylem and partly related to plant hydraulic conductivity but not to leaf water potential. By contrast, low gs during re\uffe2\uff80\uff90watering did not correlate with ABA contents and was only related to a sustained decreased hydraulic conductivity. In addition to a complex physiological regulation of stomatal closure, gs and rate of transpiration (E) were strongly affected by leaf\uffe2\uff80\uff90to\uffe2\uff80\uff90air vapor pressure deficit (VPD) in a way dependent of the treatment. Interestingly, E increased with increasing VPD in control plants, but decreased with increasing VPD in severely stressed plants. All together, the fine stomatal regulation in R\uffe2\uff80\uff90110 resulted in very high WUE at the leaf level. This genotype is revealed to be very interesting for further studies on the physiological mechanisms leading to regulation of stomatal responsiveness and WUE in response to drought.
", "keywords": ["0106 biological sciences", "Picea abies", "Stomatal conductance; water use efficiency; water stress; drought; water potential; water relations; plant hydraulics; abscisic acid; vapour pressure deficit", "Water", "Plant Transpiration", "svinec", "info:eu-repo/classification/udc/581", "15. Life on land", "sadike", "Adaptation", " Physiological", "01 natural sciences", "6. Clean water", "Droughts", "Plant Leaves", "Plant Stomata", "Hybridization", " Genetic", "Vitis", "citokinin"]}, "links": [{"href": "https://doi.org/10.1111/j.1399-3054.2008.01138.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Physiologia%20Plantarum", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1399-3054.2008.01138.x", "name": "item", "description": "10.1111/j.1399-3054.2008.01138.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1399-3054.2008.01138.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-09-15T00:00:00Z"}}, {"id": "10.1111/nph.18120", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:19:48Z", "type": "Journal Article", "created": "2022-03-28", "title": "Solar radiation drives methane emissions from the shoots of Scots pine", "description": "Summary
Plants are recognized as sources of aerobically produced methane (CH4), but the seasonality, environmental drivers and significance of CH4 emissions from the canopies of evergreen boreal trees remain poorly understood.
We measured the CH4 fluxes from the shoots of Pinus sylvestris (Scots pine) and Picea abies (Norway spruce) saplings in a static, non\uffe2\uff80\uff90steady\uffe2\uff80\uff90state chamber setup to investigate if the shoots of boreal conifers are a source of CH4 during spring.
We found that the shoots of Scots pine emitted CH4 and these emissions correlated with the photosynthetically active radiation. For Norway spruce, the evidence for CH4 emissions from the shoots was inconclusive.
Our study shows that the canopies of evergreen boreal trees are a potential source of CH4 in the spring and that these emissions are driven by a temperature\uffe2\uff80\uff90by\uffe2\uff80\uff90light interaction effect of solar radiation either directly or indirectly through its effects on tree physiological processes.
Vegetation and soils were sampled in adjacent 40-year-old stands of red pine (Pinusresinosa Ait.), jack pine (Pinusbanksiana Lamb.), white spruce (Piceaglauca (Moench.) Voss), and aspen (Populustremuloides Michx., P. grandidentata Michx.) on a very fine sandy loam soil in north-central Minnesota. Total tree biomass was greatest for red pine followed by aspen, spruce, and jack pine. Nutrient weights (N, P, K, Ca, Mg) in the trees were greatest in aspen followed generally by spruce, red pine, and jack pine. Particularly large proportions of biomass and nutrients were found in aspen bark and spruce foliage and branches. Understory biomass contributed less than 1.2% of the total organic matter in the vegetation\uffe2\uff80\uff93soil complex but contributed up to 5.0% of the nutrients. Exchangeable Ca in the surface soil was much lower under aspen and spruce than under the pines. No significant soil differences between species were detected below 36\uffe2\uff80\uff82cm. Harvesting the entire aboveground portion of the tree would remove up to three times more nutrients from the site than would harvesting only the bole. ", "keywords": ["0106 biological sciences", "Yield", "Spermatophyta", "Angiosperms", "Nitrogen", "Sandy Loam", "plant nutrition", "Coniferopsida: Gymnospermae", "Gymnosperms", "magnesium", "Pinus Banksiana", "01 natural sciences", "nitrogen", "Dicots", "forest soils", "temperate zones", "Picea Glauca", "Populus Tremuloides", "nutrients", "Spermatophytes", "Magnesium", "phosphorus", "Plantae", "Pinus Resinosa", "Forest Sciences", "soil types ecological", "calcium", "Vascular Plants", "Salicaceae: Dicotyledones", "potassium", "Populus Grandidentata", "Phosphorus", "Plants", "15. Life on land", "nutrition", "Angiospermae", "Tracheophyta: Plantae", "Potassium", "Calcium"], "contacts": [{"organization": "Alban, David H., Perala, Donald A., Schlaegel, Bryce E.,", "roles": ["creator"]}]}, "links": [{"href": "https://digitalcommons.usu.edu/context/aspen_bib/article/5834/viewcontent/Alban412.pdf"}, {"href": "https://doi.org/10.1139/x78-044"}, {"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/x78-044", "name": "item", "description": "10.1139/x78-044", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1139/x78-044"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1978-09-01T00:00:00Z"}}, {"id": "10.1139/x06-035", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:19:58Z", "type": "Journal Article", "created": "2006-06-06", "title": "Influence Of Long-Term Nutrient Optimization On Biomass, Carbon, And Nitrogen Acquisition And Allocation In Norway Spruce", "description": "We examined the effects of a long-term nutrient-optimization treatment on the acquisition and allocation of biomass, carbon (C), and nitrogen (N) in young Norway spruce (Picea abies (L.) Karst.) growing in northern Sweden. After 12 years of fertilization the absolute biomass of stem, needles, living branches, and stump and coarse roots was more than doubled by nutrient optimization (irrigation – liquid fertilization treatment, IL), but the standing biomass of fine and small roots was unaffected compared with that of control trees. Biomass allocation among aboveground organs was not plastic to nutrient optimization and only the relative proportion of dead branches was reduced by nutrient optimization. Within the crown, biomass allocation to living branches was shifted towards the apex in IL trees. The N content in IL trees was substantially higher than in control trees. Most of the total N was allocated to needles and most of the needle N was found in the middle stratum of the living crown in both treatments, although the N concentration of current-year and older needles increased towards the apex in IL trees but not in control trees. The C concentration in the biomass components was not affected by the optimized fertilization. The results clearly show that there is a large potential to increase biomass production of Norway spruce (C sequestration) in the Nordic countries. This would secure the supply of raw material for the forest industry at the same time as the demand for biofuel from forest biomass is increasing.
", "keywords": ["0106 biological sciences", "570", "typpi", "Picea abies", "biomassa", "hiili", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "lannoitus"]}, "links": [{"href": "https://doi.org/10.1139/x06-035"}, {"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/x06-035", "name": "item", "description": "10.1139/x06-035", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1139/x06-035"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-06-01T00:00:00Z"}}, {"id": "10.1139/x89-213", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:19:59Z", "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": "10.17221/3032-jfs", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:20:39Z", "type": "Journal Article", "created": "2018-02-11", "title": "Nutrients In The Aboveground Biomass Of Substitute Tree Species Stand With Respect To Thinning \u2013 Blue Spruce (Picea Pungens Engelm.)", "description": "The present paper is the first contribution from the biomass quantification series which is realized by Forestry and Game Management Research Institute in the Kru\u0161n\u00e9 hory Mts. (Northern Bohemia). This study is aimed at blue spruce substitute stands. Research was done within the blue spruce experiment Fl\u00e1je II in the Kru\u0161n\u00e9 hory Mts. (800 m above sea level in the spruce forest vegetation zone, acidic category). Results showed that the aboveground biomass of the investigated substitute blue spruce stand without thinning amounted to approximately 56 thousand kg of dry matter per ha at the age of 22 years. Wood and bark of branches are the most important parts of the aboveground biomass (ca 40%). Needles and stem wood accounted for approximately 26 and 28% and stem bark only for 6%. At the age of 22 years, the investigated substitute blue spruce stand accumulated: N - 336 kg, P - 28 kg, K - 138 kg, Ca - 159 kg, Mg - 28 kg per hectare. Thinning with the consequent removal of aboveground biomass (54% of trees, 40% of basal area at the age of 16 years) represented a loss of ca 8.7 thousand kg/ha of total biomass, which contained 53 kg of N, 5 kg of P, 22 kg of K, 26 kg of Ca and 4 kg of Mg. The removal of biomass in areas previously degraded by acid deposition may result in the deficiency of Ca and Mg because of their low content in forest soil. On the other hand, thinning supported the faster growth of trees left after thinning and consequently faster biomass and nutrient accumulation.", "keywords": ["thinning", "kru\u0161n\u00e9 hory mts.", "0401 agriculture", " forestry", " and fisheries", "Forestry", "04 agricultural and veterinary sciences", "SD1-669.5", "15. Life on land", "aboveground biomass", "picea pungens engelm.", "substitute stands", "blue spruce"], "contacts": [{"organization": "J. Nov\u00e1k, M. Slodi\u010d\u00e1k,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.17221/3032-jfs"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Forest%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.17221/3032-jfs", "name": "item", "description": "10.17221/3032-jfs", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.17221/3032-jfs"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-03-31T00:00:00Z"}}, {"id": "10.1890/08-0501.1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:20:46Z", "type": "Journal Article", "created": "2009-03-18", "title": "Forest Fuel Reduction Alters Fire Severity And Long-Term Carbon Storage In Three Pacific Northwest Ecosystems", "description": "Two forest management objectives being debated in the context of federally managed landscapes in the U.S. Pacific Northwest involve a perceived trade\uffe2\uff80\uff90off between fire restoration and carbon sequestration. The former strategy would reduce fuel (and therefore C) that has accumulated through a century of fire suppression and exclusion which has led to extreme fire risk in some areas. The latter strategy would manage forests for enhanced C sequestration as a method of reducing atmospheric CO2and associated threats from global climate change. We explored the trade\uffe2\uff80\uff90off between these two strategies by employing a forest ecosystem simulation model, STANDCARB, to examine the effects of fuel reduction on fire severity and the resulting long\uffe2\uff80\uff90term C dynamics among three Pacific Northwest ecosystems: the east Cascades ponderosa pine forests, the west Cascades western hemlock\uffe2\uff80\uff93Douglas\uffe2\uff80\uff90fir forests, and the Coast Range western hemlock\uffe2\uff80\uff93Sitka spruce forests. Our simulations indicate that fuel reduction treatments in these ecosystems consistently reduced fire severity. However, reducing the fraction by which C is lost in a wildfire requires the removal of a much greater amount of C, since most of the C stored in forest biomass (stem wood, branches, coarse woody debris) remains unconsumed even by high\uffe2\uff80\uff90severity wildfires. For this reason, all of the fuel reduction treatments simulated for the west Cascades and Coast Range ecosystems as well as most of the treatments simulated for the east Cascades resulted in a reduced mean stand C storage. One suggested method of compensating for such losses in C storage is to utilize C harvested in fuel reduction treatments as biofuels. Our analysis indicates that this will not be an effective strategy in the west Cascades and Coast Range over the next 100 years. We suggest that forest management plans aimed solely at ameliorating increases in atmospheric CO2should forgo fuel reduction treatments in these ecosystems, with the possible exception of some east Cascades ponderosa pine stands with uncharacteristic levels of understory fuel accumulation. Balancing a demand for maximal landscape C storage with the demand for reduced wildfire severity will likely require treatments to be applied strategically throughout the landscape rather than indiscriminately treating all stands.
", "keywords": ["Greenhouse Effect", "0106 biological sciences", "Bioelectric Energy Sources", "Forestry", "Carbon Dioxide", "15. Life on land", "16. Peace & justice", "Models", " Biological", "01 natural sciences", "7. Clean energy", "Carbon", "Fires", "Pseudotsuga", "Pinus ponderosa", "Oregon", "13. Climate action", "Computer Simulation", "Picea", "Ecosystem", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1890/08-0501.1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecological%20Applications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1890/08-0501.1", "name": "item", "description": "10.1890/08-0501.1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1890/08-0501.1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-04-01T00:00:00Z"}}, {"id": "10.5061/dryad.926nd", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:22:31Z", "type": "Dataset", "title": "Data from: Do plant traits explain tree seedling survival in bogs?", "description": "unspecifiedSeedlingtraitdataexperiment2Experiment 2 Morphological traits were assessed independently of Experiment 1. We grew tree seedlings under optimal conditions by planting pre-grown 4 weeks old tree seedlings ( see plant material) into the center of a (10 cm wide) pot, using a density of one seedling per pot. The pots were filled with sterilized organic soil, watered daily and kept under the same glasshouse light and humidity conditions as Experiment 1. Pots were arranged in five replicated blocks. Both the blocks and the pots within a block were randomly moved once a week. For more information on columnheadings see Table 1 in the associated MSMotherfile.xlsTraitsandsurvivalTraits assessed in Experiment 2 were used to relate to seedling survival in Experiment 1. This file contains trait data from experiment 2 and seedling survival of seven conifer species in experiment 1 kept under contrasting moisture conditions (Dry, Wet)traitsandsurvival.xlsxTraitplasticityseedlingsmosssoilTo assess the plasticity of the morphological traits, we compared the morphological traits based on seedlings from Experiment 2 (grown on soil) with values measured on seedlings in Experiment 1 under contrasting moisture conditionsTraitflexibilitymosssoil.xlsxgerminationTo assess germination, we introduced seeds to Experiment 1 in the third week, corresponding to the time when pot water contents had stabilized. Three seeds were placed around the seedling of the same species, on the capitulum of a moss individual, using 3 x 140 = 420 seeds in total. Germination was checked twice a week until harvest, 5 weeks later. We considered a seed germinated when the integument had broken and a \u2018shoot\u2019 of at least 1 mm had emerged from the seed.Mossgrowth and seedling performanceThe file contains growth and survival of seedlings grown on moss in experiment 1 as well as the moss growth itselfRelatie tussen mosgroei en seedling performance.xlsx", "keywords": ["2. Zero hunger", "(Pinus sylvestris L.", "tree encroachment", "Holocene", "mires", "Picea sitchensis (Bong.) Carri\u00e8re", "15. Life on land", "Pinus sylvestris L.", "Picea rubens Sarg.", "Picea glauca (Moench) Voss", "Bogs", "Pinus banksiana Lamb", "Seedlings", "Picea glauca (Moench) Voss)", "Picea mariana (Mill.) Britton", "Picea mariana (Mill.) Britton Sterns & Poggenb.", "Sterns & Poggenb.", "peatlands", "Pinus nigra Arnold"], "contacts": [{"organization": "Limpens, Juul, van Egmond, Emily, Li, Bingxi, Holmgren, Milena,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.926nd"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.926nd", "name": "item", "description": "10.5061/dryad.926nd", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.926nd"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-06-24T00:00:00Z"}}, {"id": "10.5061/dryad.29mb7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:22:27Z", "type": "Dataset", "title": "Data from: Growth and carbon relations of mature Picea abies trees under 5\u00a0years of free-air CO2 enrichment", "description": "unspecifiedPicea-FACE_synthesis_gas_exchangeNeedle gas exchange rates measured on 1-year-old needles in ambient (A) and elevated (E) trees at both ambient and elevated CO2 levels (400 and 550 ppm) during five summer field campaigns (18 June, 2 July, and 19 September 2013; 23 and 26 September 2014).", "keywords": ["Conifers", "elevated CO2", "height profile", "carbon isotopes", "Picea abies", "Face", "wood anatomy", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.5061/dryad.29mb7"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.29mb7", "name": "item", "description": "10.5061/dryad.29mb7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.29mb7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-06-27T00:00:00Z"}}, {"id": "10.60692/h5snt-86y57", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:25:31Z", "type": "Journal Article", "created": "2022-06-06", "title": "Effects of common European tree species on soil microbial resource limitation, microbial communities and soil carbon", "description": "Open Access\u0643\u0634\u0641\u062a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u062a\u064a 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\u0628\u064a\u0646 \u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u0623\u0634\u062c\u0627\u0631 \u0648\u0628\u064a\u0646 \u0646\u0648\u0639\u064a\u0646 \u0645\u0646 \u0627\u0644\u062c\u0630\u0648\u0631 \u0627\u0644\u0641\u0637\u0631\u064a\u0629 \u0627\u0644\u0645\u0631\u062a\u0628\u0637\u0629 \u0628\u0647\u0627.", "keywords": ["Biomass (ecology)", "Microbial population biology", "Fagus sylvatica", "Soil Science", "Plant Science", "Plant litter", "Agricultural and Biological Sciences", "Mycorrhizal Fungi and Plant Interactions", "Soil water", "Genetics", "Monoculture", "Forest floor", "Saproxylic Insect Ecology and Forest Management", "Biology", "Beech", "Soil organic matter", "Soil Fertility", "Ecology", "Bacteria", "Picea abies", "Botany", "Life Sciences", "04 agricultural and veterinary sciences", "Soil carbon", "Agronomy", "Insect Science", "FOS: Biological sciences", "0401 agriculture", " forestry", " and fisheries", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems", "Nutrient"]}, "links": [{"href": "https://doi.org/10.60692/h5snt-86y57"}, {"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": "10.60692/h5snt-86y57", "name": "item", "description": "10.60692/h5snt-86y57", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.60692/h5snt-86y57"}, {"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": "10.5061/dryad.m528023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:22:36Z", "type": "Dataset", "title": "Data from: Litter conversion into detritivore faeces reshuffles the quality control over C and N dynamics during decomposition", "description": "unspecifiedPhysical and chemical characteristicsThis data file contains physical and chemical characteristics of uningested leaf litter of seven tree species, and the characteristics of faecal pellets of pill millipedes (Glomeris marginata) feeding on the litter of each of these species separately. See Methods in the paper for measurement details, and the 'Metadata' sheet for variable description.Phys&Chem_characteristics.xlsxCarbon and Nitrogen dynamicsThis data file contains data used to compute the carbon and nitrogen losses of uningested leaf litter of seven tree species, and the C and N losses of faecal pellets of pill millipedes (Glomeris marginata) feeding on the litter of each of these species separately, after 100 days of incubation. See Methods in the paper for measurement details, and the 'Metadata' sheet for variable description.C&N_dynamics.xlsx", "keywords": ["Glomeris marginata", "Picea abies", "Castanea sativa", "Macroarthropod", "15. Life on land", "Acer pseudoplatanus", "Litter traits", "Soil fauna", "Faecal pellet", "Saprophagous invertebrate", "Ostrya carpinifolia", "13. Climate action", "Quercus ilex rotundifolia", "Quercus ilex ilex", "Anthropocene", "Nitrogen immobilization", "Litter transformer", "Quercus cerris"], "contacts": [{"organization": "Joly, Fran\u00e7ois-Xavier, Coq, Sylvain, Coulis, Mathieu, Nahmani, Johanne, Hattenschwiler, Stephan,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.m528023"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.m528023", "name": "item", "description": "10.5061/dryad.m528023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.m528023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-06-05T00:00:00Z"}}, {"id": "10138/344545", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:25:52Z", "type": "Journal Article", "created": "2022-03-28", "title": "Solar radiation drives methane emissions from the shoots of Scots pine", "description": "Summary
Plants are recognized as sources of aerobically produced methane (CH4), but the seasonality, environmental drivers and significance of CH4 emissions from the canopies of evergreen boreal trees remain poorly understood.
We measured the CH4 fluxes from the shoots of Pinus sylvestris (Scots pine) and Picea abies (Norway spruce) saplings in a static, non\uffe2\uff80\uff90steady\uffe2\uff80\uff90state chamber setup to investigate if the shoots of boreal conifers are a source of CH4 during spring.
We found that the shoots of Scots pine emitted CH4 and these emissions correlated with the photosynthetically active radiation. For Norway spruce, the evidence for CH4 emissions from the shoots was inconclusive.
Our study shows that the canopies of evergreen boreal trees are a potential source of CH4 in the spring and that these emissions are driven by a temperature\uffe2\uff80\uff90by\uffe2\uff80\uff90light interaction effect of solar radiation either directly or indirectly through its effects on tree physiological processes.