{"id":6566,"date":"2025-12-02T16:39:39","date_gmt":"2025-12-02T15:39:39","guid":{"rendered":"https:\/\/ist.blogs.inrae.fr\/afs\/?p=6566"},"modified":"2025-12-03T11:04:08","modified_gmt":"2025-12-03T10:04:08","slug":"how-much-timber-from-norway-spruce-picea-abies-l-is-left-on-the-harvesting-site-as-treetops-a-study-on-scaling-and-grading-yields-of-harvesters","status":"publish","type":"post","link":"https:\/\/ist.blogs.inrae.fr\/afs\/2025\/12\/02\/how-much-timber-from-norway-spruce-picea-abies-l-is-left-on-the-harvesting-site-as-treetops-a-study-on-scaling-and-grading-yields-of-harvesters\/","title":{"rendered":"How much timber from Norway spruce (Picea abies L.) is left on the harvesting site as treetops? A study on scaling and grading yields of harvesters"},"content":{"rendered":"<script type='text\/javascript' src='https:\/\/d1bxh8uas1mnw7.cloudfront.net\/assets\/embed.js'><\/script><p><strong>Key message\u00a0<\/strong><br \/>\nTimber losses during Norway spruce (<i>Picea abies<\/i>\u00a0L.) harvesting with the cut-to-length method were analyzed using data from 41,948 stems. The volume of timber left on the site after CTL harvesting reached 0.111% overall and 0.454% for stems larger than 34 cm DBH, compared to official production records. On the other hand, for small stems, a surplus of 2.50% of timber was extracted compared to official records. Optimizing measurement accuracy and harvester technology is essential to improve economic efficiency.<\/p>\n<p><strong>Keywords<\/strong><br \/>\nForest harvesting; Volume estimation errors; Timber losses; Timber scaling; Bucking; CTL-method; Harvester technology<\/p>\n<div class='altmetric-embed' data-badge-type='donut' data-doi='10.1186\/s13595-025-01289-4'  style='float: right; ' ><\/div>\n<p><strong>Publication<\/strong><br \/>\nDvo\u0159\u00e1k, J., \u0160tolc, M., Jankovsk\u00fd, M.\u00a0<i>et al.<\/i>\u00a0How much timber from Norway spruce (<i>Picea abies<\/i>\u00a0L.) is left on the harvesting site as treetops? A study on scaling and grading yields of harvesters.\u00a0<i>Annals of Forest Science<\/i>\u00a082, 19 (2025). <a href=\"https:\/\/doi.org\/10.1186\/s13595-025-01289-4\">https:\/\/doi.org\/10.1186\/s13595-025-01289-4<\/a><\/p>\n<p><strong>Data availability<\/strong><br \/>\nThe datasets used and analysed during the current study are available in the Zenodo data repository (Dvo\u0159\u00e1k J, Natov P, \u0160tolc M (<a id=\"ref-link-section-d18028472e4752\" title=\"Dvo\u0159\u00e1k J, Natov P, \u0160tolc M (2025) How much timber from Norway spruce (Picea abies L.) is left on the harvesting site in the form of treetops? A study on scaling and grading yields of harvesters. V1. Zenodo. [Data set]. https:\/\/doi.org\/10.5281\/zenodo.14690727 .\" href=\"https:\/\/link-springer-com.inrae.idm.oclc.org\/article\/10.1186\/s13595-025-01289-4#ref-CR12\" data-track=\"click\" data-track-action=\"reference anchor\" data-track-label=\"link\" data-test=\"citation-ref\" aria-label=\"Reference 2025\">2025<\/a>) How much timber from Norway spruce (<i>Picea abies<\/i>\u00a0L<i>.<\/i>) is left on the harvesting site in the form of treetops? A study on scaling and grading yields of harvesters. V1. Zenodo. [Data set].\u00a0<a href=\"https:\/\/doi.org\/10.5281\/zenodo.14690727\">https:\/\/doi.org\/10.5281\/zenodo.14690727<\/a>.<\/p>\n<p><strong>Handling editor\u00a0<\/strong><br \/>\nErwin Dreyer<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Key message\u00a0 Timber losses during Norway spruce (Picea abies\u00a0L.) harvesting with the cut-to-length method were analyzed using data from 41,948 stems. The volume of timber left on the site after CTL harvesting reached 0.111% overall and 0.454% for stems larger than 34 cm DBH, compared to official production records. On the other hand, for small [&hellip;]<\/p>\n","protected":false},"author":240,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,1,109,15],"tags":[],"class_list":["post-6566","post","type-post","status-publish","format-standard","hentry","category-article-type","category-non-classe","category-open-access","category-research-paper","cat-14-id","cat-1-id","cat-109-id","cat-15-id"],"_links":{"self":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/6566","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/users\/240"}],"replies":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/comments?post=6566"}],"version-history":[{"count":5,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/6566\/revisions"}],"predecessor-version":[{"id":6583,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/6566\/revisions\/6583"}],"wp:attachment":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/media?parent=6566"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/categories?post=6566"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/tags?post=6566"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}