{"id":82807,"date":"2019-01-30T12:18:13","date_gmt":"2019-01-30T17:18:13","guid":{"rendered":"https:\/\/mrnf.gouv.qc.ca\/nos-publications\/survival-growth-dynamics-red-spruce-seedlings\/"},"modified":"2019-01-30T12:18:13","modified_gmt":"2019-01-30T17:18:13","slug":"survival-growth-dynamics-red-spruce-seedlings","status":"publish","type":"cpt_publication","link":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/survival-growth-dynamics-red-spruce-seedlings\/","title":{"rendered":"Survival and growth dynamics of red spruce seedlings planted under different forest cover densities and types"},"content":{"rendered":"\n<p>Published in <b>New Forests 50: 573\u2013592. <a href=\"https:\/\/doi.org\/10.1007\/s11056-018-9680-2\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/doi.org\/10.1007\/s11056-018-9680-2<\/a><\/b><\/p>\n<p>Advance regeneration of red spruce (<em>Picea rubens<\/em> Sarg.) is scarce in many forest stands, due to past clearcuts and heavy harvesting of large seed trees in partial cuts. Understory enrichment planting has been proposed as a means to reintroduce the species in managed stands in which regeneration is deficient. Here, we present 5-year results regarding survival and growth dynamics of red spruce seedlings planted under hardwood, mixedwood, and coniferous forest covers following various cuts (each made on 0.5\u20131.2&nbsp;ha square area): hybrid single-tree and group-selection, irregular shelterwood (two variants: continuous cover and extended irregular shelterwood), uniform regular shelterwood, harvesting with advance regeneration protection (HARP), and careful logging around advanced growth (hereafter referred to as \u2018patch clearcut\u2019). Five-year seedling survival did not vary among cuts except under the coniferous cover, where it was better in the heavier cuts (HARP and patch clearcut; 67%) than under continuous cover shelterwood cuts (24%), in which browsing occurrence was high (around 80%). Under the hardwood cover, height, diameter and biomass growth were greater in the extended irregular shelterwood cut than in other treatments. Under the mixedwood and coniferous covers, seedling growth was greater in patch clearcut, likely because transmitted light (90\u2013100% full sunlight) was higher than in other cuts (around 30%). Results suggest that red spruce could be reintroduced using enrichment planting under a partial forest cover, but that additional treatments could be necessary to manage light and to limit browsing pressure in order to optimize long-term survival and growth performance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Published in New Forests 50: 573\u2013592. https:\/\/doi.org\/10.1007\/s11056-018-9680-2 Advance regeneration of red spruce (Picea rubens Sarg.) is scarce in many forest stands, due to past clearcuts and heavy harvesting of large seed trees in partial cuts. Understory enrichment planting has been proposed as a means to reintroduce the species in managed stands in which regeneration is [&hellip;]<\/p>\n","protected":false},"template":"","format":"standard","cptt_secteur":[1179],"cptt_theme":[1180,1181,1182],"cptt_categ_publi":[1149],"cptt_auteurs_ministeriels":[1068,1083,1092,1094,1111],"class_list":["post-82807","cpt_publication","type-cpt_publication","status-publish","format-standard","hentry","cptt_secteur-forests","cptt_theme-forestry-research","cptt_theme-forests","cptt_theme-silviculture","cptt_categ_publi-scientific-article","cptt_auteurs_ministeriels-s-bedard","cptt_auteurs_ministeriels-dumais-daniel","cptt_auteurs_ministeriels-m-c-lambert","cptt_auteurs_ministeriels-larouche-catherine-en","cptt_auteurs_ministeriels-p-raymond"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Survival and growth dynamics of red spruce seedlings planted under different forest cover densities and types - Minist\u00e8re des Ressources naturelles et des For\u00eats<\/title>\n<meta name=\"description\" content=\"Regeneration of red spruce is scarce in many forest stands due to past clearcuts and heavy harvesting of large seed trees in partial cuts.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/survival-growth-dynamics-red-spruce-seedlings\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Survival and growth dynamics of red spruce seedlings planted under different forest cover densities and types - Minist\u00e8re des Ressources naturelles et des For\u00eats\" \/>\n<meta property=\"og:description\" content=\"Regeneration of red spruce is scarce in many forest stands due to past clearcuts and heavy harvesting of large seed trees in partial cuts.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/survival-growth-dynamics-red-spruce-seedlings\/\" \/>\n<meta property=\"og:site_name\" content=\"Minist\u00e8re des Ressources naturelles et des For\u00eats\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/RessourcesNaturellesForets\/\" \/>\n<meta property=\"og:image\" content=\"\/wp-content\/uploads\/Image-g%c3%a9n%c3%a9rale-hiver_FB.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@mrnfqc\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/survival-growth-dynamics-red-spruce-seedlings\/\",\"url\":\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/survival-growth-dynamics-red-spruce-seedlings\/\",\"name\":\"Survival and growth dynamics of red spruce seedlings planted under different forest cover densities and types - 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Minist\u00e8re des Ressources naturelles et des For\u00eats","description":"Regeneration of red spruce is scarce in many forest stands due to past clearcuts and heavy harvesting of large seed trees in partial cuts.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/survival-growth-dynamics-red-spruce-seedlings\/","og_locale":"en_US","og_type":"article","og_title":"Survival and growth dynamics of red spruce seedlings planted under different forest cover densities and types - Minist\u00e8re des Ressources naturelles et des For\u00eats","og_description":"Regeneration of red spruce is scarce in many forest stands due to past clearcuts and heavy harvesting of large seed trees in partial cuts.","og_url":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/survival-growth-dynamics-red-spruce-seedlings\/","og_site_name":"Minist\u00e8re des Ressources naturelles et des For\u00eats","article_publisher":"https:\/\/www.facebook.com\/RessourcesNaturellesForets\/","og_image":[{"width":1200,"height":630,"url":"\/wp-content\/uploads\/Image-g%c3%a9n%c3%a9rale-hiver_FB.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_site":"@mrnfqc","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/survival-growth-dynamics-red-spruce-seedlings\/","url":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/survival-growth-dynamics-red-spruce-seedlings\/","name":"Survival and growth dynamics of red spruce seedlings planted under different forest cover densities and types - 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