{"type": "FeatureCollection", "features": [{"id": "10.1007/s00572-015-0655-2", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:24Z", "type": "Journal Article", "created": "2015-07-25", "title": "The Ectomycorrhizal Community Of Conifer Stands On Peat Soils 12 Years After Fertilization With Wood Ash", "description": "We studied long-term effects of fertilization with wood ash on biomass, vitality and mycorrhizal colonization of fine roots in three conifer forest stands growing in Vacciniosa turf. mel. (V), Myrtillosa turf. mel. (M) and Myrtillosa turf. mel./Caricoso-phragmitosa (MC) forest types on peat soils. Fertilization trials amounting 5 kg/m(2) of wood ash were established 12 years prior to this study. A total of 63 soil samples with roots were collected and analysed. Ectomycorrhizal (ECM) fungi in roots were identified by morphotyping and sequencing of the fungal internal transcribed spacer (ITS) region. In all forest types, fine root biomass was higher in fertilized plots than in control plots. In M forest type, proportion of living fine roots was greater in fertilized plots than in control plots, while in V and MC, the result was opposite. Fifty ECM species were identified, of which eight were common to both fertilized and control plots. Species richness and Shannon diversity index were generally higher in fertilized plots than in control plots. The most common species in fertilized plots were Amphinema byssoides (17.8%) and Tuber cf. anniae (12.2%), while in control plots, it was Tylospora asterophora (18.5%) and Lactarius tabidus (20.3%). Our results showed that forest fertilization with wood ash has long-lasting effect on diversity and composition of ECM fungal communities.", "keywords": ["0106 biological sciences", "570", "forest fertilization", "m\u00e4nty", "Molecular Sequence Data", "organic soils", "fine roots", "Plant Roots", "01 natural sciences", "630", "mets\u00e4nlannoitus", "Mycorrhizae", "ectomycorrhizae", "DNA", " Ribosomal Spacer", "Muut aihealueet", "DNA", " Fungal", "2. Zero hunger", "Picea abies", "Pinus sylvestris", "Sequence Analysis", " DNA", "04 agricultural and veterinary sciences", "15. Life on land", "Biota", "hienojuuret", "kuusi", "Tracheophyta", "eloper\u00e4iset maat", "0401 agriculture", " forestry", " and fisheries", "ektomykorritsa"]}, "links": [{"href": "https://doi.org/10.1007/s00572-015-0655-2"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Mycorrhiza", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00572-015-0655-2", "name": "item", "description": "10.1007/s00572-015-0655-2", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00572-015-0655-2"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-07-26T00:00:00Z"}}, {"id": "10.1016/j.foreco.2015.07.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:10Z", "type": "Journal Article", "created": "2015-08-24", "title": "Response Of Soil Nutrient Content, Organic Matter Characteristics And Growth Of Pine And Spruce Seedlings To Logging Residues", "description": "Abstract   The aim of this study was to determine the effects of different amounts of logging residues on soil properties and growth of Scots pine and Norway spruce seedlings 10\u00a0years after clear-felling. The field experiments consisted of two Scots pine and four Norway spruce experiments. The treatments, on three replicate 8\u00a0m\u00a0\u2217\u00a08\u00a0m plots in all field experiments, were whole-tree harvesting, i.e. harvesting all the above-ground biomass with no logging residue left on the site (R0), stem-only harvesting, leaving logging residues on the site (R1), and stem-only harvesting with double the amount of logging residues left on the site (R2). In the R1 treatment the amount of logging residue in the spruce stands was 39\u201354\u00a0Mg\u00a0ha\u22121 dry mass and in the pine stands, 11\u201318\u00a0Mg\u00a0ha\u22121 dry mass. Over all sites, logging residues had no consistent effects on seedling growth, amounts of soil carbon and nutrients or organic matter characteristics. In some spruce experiments, however, logging residues increased the average diameter, height and height growth (last three years), as well as the number of seedlings, stem volume and biomass. In pine experiments, logging residues had no effect on tree or stand characteristics. In one pine experiment the amounts of exchangeable base cations increased, and there were also changes in the quality of organic matter: the C/N ratio decreased, and NH4\u2013N, microbial biomass N and C mineralization increased due to residues. In the spruce experiments and the other pine experiment, the effect of logging residues on the soil properties measured was slight. Logging residues did not affect NO3\u2013N concentrations or rates of net nitrification, which in most soils were both negligible. Seedling height and height growth correlated strongly and positively with net N mineralization and its ratio to microbial biomass N. All in all, logging residues improved tree and stand characteristics generally in spruce stands, but the effects on soil properties and processes, if any, occurred mostly in one pine stand. This poor correspondence may point to other changes brought on by the logging residues, such as changes in physical environment or decreased competition with ground vegetation, being more important for seedling growth than nutrient status was.", "keywords": ["0106 biological sciences", "nitrogen cycling", "nutrients", "13. Climate action", "logging wastes", "tree growth", "Muut aihealueet", "15. Life on land", "forest soil", "ta4112", "01 natural sciences", "630"], "contacts": [{"organization": "Saarsalmi, Anna, Tamminen, Pekka, Smolander, Aino,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2015.07.019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2015.07.019", "name": "item", "description": "10.1016/j.foreco.2015.07.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2015.07.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-12-01T00:00:00Z"}}, {"id": "10.1111/ejss.12264", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:18:34Z", "type": "Journal Article", "created": "2015-05-14", "title": "Changes In Forest Floor And Mineral Soil Carbon And\u00a0Nitrogen Stocks In A Boreal Forest After Clear-Cutting And\u00a0Mechanical Site Preparation", "description": "Summary<p>Significant amounts of organic carbon (C) and nitrogen (N) are accumulated in soil in boreal forests. However, increased concern has been shown regarding the negative impacts of forestry operations on both the C sequestration and N stocks in soil. Changes in the C and N stocks in woody debris, forest floor and mineral soil (0\uffe2\uff80\uff9320\uffe2\uff80\uff89cm) were studied in Eastern Finland for 10\uffe2\uff80\uff89years after stem\uffe2\uff80\uff90only clear\uffe2\uff80\uff90cutting followed by soil harrowing. Samples were taken from the uncut forest and from the different microsites formed by the harrowing (ridges, furrows and undisturbed areas). Carbon and N from logging residues were not incorporated into the forest floor or mineral soil stocks to any great extent. After 5\uffe2\uff80\uff89years the C stock above the mineral soil was smaller (&lt;\uffe2\uff80\uff8920%) in the treated area than in the uncut forest and after 10\uffe2\uff80\uff89years it was &lt;\uffe2\uff80\uff8950% smaller. The corresponding N stock was marginally larger (&lt;\uffe2\uff80\uff895%) after 5\uffe2\uff80\uff89years, but smaller (&lt;\uffe2\uff80\uff8920%) after 10\uffe2\uff80\uff89years. In the mineral soil there were no changes; only the furrows lost C and N when compared with the other microsites, but not when compared with the forest. Harrowing increased the spatial variation in the forest floor C and N stocks. The comparison of the N losses from the soil and logging residues and woody debris with the leaching losses, the amounts utilized by the regenerating vegetation or estimated to be immobilized by the stumps at the same site indicated that N which remained after the clear\uffe2\uff80\uff90cutting was retained at the site. For a full understanding of the impact of such a disturbance on stocks at a site all significant fluxes and stocks would need to be monitored.</p>", "keywords": ["0106 biological sciences", "maaper\u00e4", "havumets\u00e4t", "hakkuut\u00e4hteet", "hiili", "carbon", "04 agricultural and veterinary sciences", "15. Life on land", "ta4112", "01 natural sciences", "nitrogen", "soil", "felling", "typpi", "Muut aihealueet", "0401 agriculture", " forestry", " and fisheries", "boreal forests", "hakkuu"]}, "links": [{"href": "https://doi.org/10.1111/ejss.12264"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/European%20Journal%20of%20Soil%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/ejss.12264", "name": "item", "description": "10.1111/ejss.12264", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/ejss.12264"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-05-14T00:00:00Z"}}, {"id": "10.14214/sf.1260", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:19:29Z", "type": "Journal Article", "created": "2015-01-14", "title": "Biomass Production Of Coppiced Grey Alder And The Effect Of Fertilization", "description": "<ja:p>We studied biomass production of two naturally originated grey alder ( (L.) Moench) stands having a mixture of birch and willow located in central Finland. One of the stands was growing on a peatland site (Muhos) and the other on a mineral soil site (Juuka). The stands were clear-cut and fertilization experiments were laid out with several treatments. At Muhos, the treatments included nitrogen fertilisation with different amounts of wood ash and an unfertilized control. At Juuka, the treatments included nitrogen fertilisation either with ash or with PK, and ash and PK treatments alone and an unfertilized control. The sprouts at Muhos were grown for 17 years and at Juuka for 20 years. At Juuka the stand was clear-cut second time at the age of 20 years and grown for 8 years. The stands were measured several times and foliar samples were taken twice during the study period. Clear-cutting increased stem number manifold. The stand density of new coppiced forests after the clear-cutting decreased from 67\u00e2\u0080\u0089000\u00e2\u0080\u009389\u00e2\u0080\u0089000 stems ha at the age of 3\u00e2\u0080\u00936 years to 10\u00e2\u0080\u0089000\u00e2\u0080\u009312\u00e2\u0080\u0089000 stems ha at the age of 17\u00e2\u0080\u009320 years. On neither site fertilization affected biomass production of alders during the study period. Leafless above-ground biomass was 52\u00e2\u0080\u009357 Mg ha after 17\u00e2\u0080\u009320 years. Mean annual leafless above-ground biomass production (MAI) increased with increase of rotation time. At the age of 17\u00e2\u0080\u009320 years the MAI was 2.8\u00e2\u0080\u00933.0 Mg ha a. At Muhos, ash increased foliar P and Ca concentrations, but decreased those of Mn.<ja:italic>Alnus incana</ja:italic><ja:sup>\u00e2\u0080\u00931</ja:sup><ja:sup>\u00e2\u0080\u00931</ja:sup><ja:sup>\u00e2\u0080\u00931</ja:sup><ja:sup>\u00e2\u0080\u00931</ja:sup></ja:p>", "keywords": ["biomassa", "vesakot", "Alnus incana", "coppicing", "Forestry", "04 agricultural and veterinary sciences", "SD1-669.5", "15. Life on land", "ta4112", "7. Clean energy", "lannoitus", "fertilization", "biomass production", "Muut aihealueet", "0401 agriculture", " forestry", " and fisheries", "harmaalepp\u00e4"]}, "links": [{"href": "https://doi.org/10.14214/sf.1260"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Silva%20Fennica", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.14214/sf.1260", "name": "item", "description": "10.14214/sf.1260", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.14214/sf.1260"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-01-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Muut+aihealueet&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Muut+aihealueet&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Muut+aihealueet&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Muut+aihealueet&offset=4", "hreflang": "en-US"}], "numberMatched": 4, "numberReturned": 4, "distributedFeatures": [], "timeStamp": "2026-05-25T23:19:58.110496Z"}