{"@context": "https://schema.org", "@type": "Dataset", "@id": "https://doi.org/10.5878/59bw-a884", "name": "Target Tailored Forest Damage Inventory (TFDI) - Damage by bark beetles on Norway spruce in G\u00f6taland and Svealand 2021", "description": "Inventories of forest damage are carried out within the Swedish University of Agricultural Sciences (SLU) Forests programme. An annual monitoring of the most important sources of forest damage is carried out by the Swedish National Forest inventory (NFI). Although the Swedish NFI is an objective and uniform inventory of forest damage in Swedish forests at national and regional scales, less common or less widespread occurrences of forests pests and pathogens are difficult to survey solely through large-scale monitoring programmes. There is a need for complementary inventories to facilitate timely delivery of relevant information.\n\nThus Target-tailored forest damage inventories (TFDI) aiming at providing data for operational decisions making at local level, and linked to specific damage events were introduced. TFDI\u2019s are developed to give rapid response to requested information of specific damage outbreaks. The TFDIs are carried out in limited and concentrated samples, with flexible but robust methods and design. The data collected in the TFDI shall also be of such quality that it can be useful in research.\n\nDuring 2021 TFDI carried out a sample inventory of the volume Norway spruce (Picea abies) damage by European spruce bark beetle (Ips typographus) in older spruce forest in the region of G\u00f6taland excluding Gotland and Svealand excluding Dalarna. This as a follow-up to the extremely hot and dry summer in 2018, which resulted in many drought stressed spruce trees that favored the spruce bark beetle. The spruce bark beetle populations, which were already high before, increased rapidly and have in recent years caused extensive damage to spruce in G\u00f6taland och Svealand. This year\u00b4s inventory is a follow-up to the inventory carried out in 2020. The inventory includes both standing infested trees as well as infested wind-felled trees and stumps from felled infested trees. The purpose of the inventory was to estimate the volume Norway spruce damage by the given bark beetles, but also to highlight geographical distribution and the appearance of the damage in different forest sites. The results from the inventory should be available for decisions making basis in forestry managements.\nThe inventory was stratified by an objective sample of all the National Forest Inventory permanent sample plots in G\u00f6taland and Svealand. Included plots within the sample was all older thinning forest and final felling mature forest consisting of at least 7/10 proportion of spruce. For the selection of plots LPM (local pivotal method, Grafstr\u00f6m et al) is used where the selection was spread based on the geographical position and the spruce volume of the sample plots. The radii of sample plots used for the damage inventory was 20 m, the area which was included for the described site. This means that the inventoried area was smaller than during the 2020 inventory, when the radius was 25 m. Other parts of the plot were not included in the inventory. The inventory in 2021 includes both trees with fresh infestations (season 0) and trees infested last year (season 1) by the spruce bark beetle. Diameter at breast height was measured on damage trees and wind-felled trees. Diameter on stump from cut trees with fresh damage was measured. The dataset consist at plot level of 711 rows with 28 column, at tree level (season 0) of 399 rows with 16 columns and at tree level (season 1) of 270 rows with 12 columns. Data on inventory date has been lost. The content and scope of the inventory has been developed in consultation with Swedish Forest Agency.\n\nReferences:\nGrafstr\u00f6m, A., Lundstr\u00f6m, N., & Schelin, L. Spatially Balanced Sampling through the Pivotal Method. Biometrics, 68(2), 514-520. Retrieved December 1, 2020, from https://doi.org/10.1111/j.1541-0420.2011.01699.x\n\nSome assessed and used variables:\n\nAt sample plot level:\nPlot area measured\nThe proportion of spruce at the sample plot\nMaturity class\nNumber of infested trees\nLogging\nSanitation\n \n\nAt tree level season 0:\nIs the tree dead or alive?\nPosition of tree \u2013 standing, wind-felled, stump\nDiameter at breast height\nTree volume\n\nAt tree level season 1:\nDiameter at breast height\nTree volume\n\nSee the document \"Data_description\" for more detailed information. As additional documentation, field instructions for the inventories are also provided, both for the specific inventory and for the National Forest Inventory (NFI).", "identifier": [{"@type": "PropertyValue", "propertyID": "DOI", "value": "10.5878/59bw-a884"}, {"@type": "PropertyValue", "name": "principalRegistrationNumber", "propertyID": "https://www.rikstermbanken.se/termposter/1848/diarienummer", "value": "SLU.srh.2024.5.4.I\u00c4-1"}], "citation": {"@type": "CreativeWork", "name": "Wulff, S., & Roberge, C. (2021). Inventering av granbarkborreangrepp i G\u00f6taland och Svealand 2021. https://res.slu.se/id/publ/118281"}, "conditionsOfAccess": ["http://publications.europa.eu/resource/authority/access-right/PUBLIC", "info:eu-repo/semantics/openAccess"], "contributor": [{"@type": "Person", "@id": "https://orcid.org/0000-0002-6005-0240", "name": "Martin Schroeder", "affiliation": {"@type": "Organization", "@id": "https://ror.org/02yy8x990", "name": "Swedish University of Agricultural Sciences", "department": {"@type": "Organization", "name": "Department of Ecology"}}, "email": "Martin.Schroeder@slu.se", "familyName": "Schroeder", "givenName": "Martin"}, {"@type": "Person", "name": "Frida Carlstedt", "affiliation": {"@type": "Organization", "@id": "https://ror.org/02qh6my57", "name": "Swedish Forest Agency"}, "email": "Frida.Carlstedt@skogsstyrelsen.se", "familyName": "Carlstedt", "givenName": "Frida"}], "creativeWorkStatus": {"@type": "DefinedTerm", "name": "completed", "identifier": "http://publications.europa.eu/resource/authority/dataset-status/COMPLETED", "inDefinedTermSet": "http://publications.europa.eu/resource/authority/dataset-status", "termCode": "COMPLETED"}, "creator": [{"@type": "Person", "@id": "https://orcid.org/0000-0003-2481-9494", "name": "S\u00f6ren Wulff", "affiliation": {"@type": "Organization", "@id": "https://ror.org/02yy8x990", "name": "Swedish University of Agricultural Sciences", "department": {"@type": "Organization", "name": "Department of Forest Resource Management"}}, "email": "soren.wulff@slu.se", "familyName": "Wulff", "givenName": "S\u00f6ren"}, {"@type": "Person", "@id": "https://orcid.org/0000-0002-0975-8323", "name": "Cornelia Roberge", "affiliation": {"@type": "Organization", "@id": "https://ror.org/02yy8x990", "name": "Swedish University of Agricultural Sciences", "department": {"@type": "Organization", "name": "Department of Forest Resource Management"}}, "email": "Cornelia.Roberge@slu.se", "familyName": "Roberge", "givenName": "Cornelia"}], "dateModified": "2025-11-07", "datePublished": "2025-11-07", "funding": {"@type": "Grant", "funder": {"@type": "Organization", "@id": "https://ror.org/02qh6my57", "name": "Swedish Forest Agency"}}, "inLanguage": [{"@type": "Language", "@id": "http://lexvo.org/id/iso639-3/eng", "name": "English", "alternateName": "eng", "identifier": "eng"}, {"@type": "Language", "@id": "http://lexvo.org/id/iso639-3/swe", "name": "Swedish", "alternateName": "swe", "identifier": "swe"}], "isPartOf": "https://doi.org/10.5878/38t3-w724", "keywords": ["Forest Science", "Biota", "forest exploitation", "coniferous forest", "forest damage", "inventory of forest damage", "land use", "bark beetles", "Land use", "Ips typographus", "Scolytidae", "Forest damage inventory", "TFDI", "Norway spruce"], "license": "https://creativecommons.org/publicdomain/zero/1.0/", "publisher": {"@type": "Organization", "@id": "https://ror.org/02yy8x990", "name": "Swedish University of Agricultural 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