{"id":82543,"date":"2019-01-30T12:17:55","date_gmt":"2019-01-30T17:17:55","guid":{"rendered":"https:\/\/mrnf.gouv.qc.ca\/nos-publications\/relationship-between-saplings-ingrowth\/"},"modified":"2019-01-30T12:17:55","modified_gmt":"2019-01-30T17:17:55","slug":"relationship-between-saplings-ingrowth","status":"publish","type":"cpt_publication","link":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/relationship-between-saplings-ingrowth\/","title":{"rendered":"On the relationship between saplings and ingrowth in northern hardwood stands"},"content":{"rendered":"\n<p>Published in <strong>Forest Ecology and Management 358: 261-271. <a href=\"https:\/\/doi.org\/10.1016\/j.foreco.2015.09.020\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/doi.org\/10.1016\/j.foreco.2015.09.020<\/a><\/strong><\/p>\n<p>We used long-term data collected from 22 study sites in northern hardwood stands comprised of sugar maple (<em>Acer saccharum<\/em> Marsh.), yellow birch (<em>Betula alleghaniensis<\/em> Britt.), and American beech (<em>Fagus grandifolia<\/em> Ehrh.) to establish relationships between sapling abundance and tree ingrowth. After 10 years, postharvest sapling density in the 6 cm diameter class (5.1\u20137.0 cm) showed linear relationships with ingrowth. Proportion of variation explained (r<sup>2<\/sup>) varied from 36% to 83% depending upon tree species and silvicultural treatment (partial cutting vs. uncut control). After 20 years, linear relationships were also established (r<sup>2<\/sup> = 24\u201365%) between ingrowth and sapling density in the 2 cm diameter class (1.1\u20133.0 cm). From a wide pool of variables related to stand species composition, climate, physiography, and soil nutrients, postharvest sapling density was most strongly correlated to merchantable tree density (r = 0.43\u20130.75). Sugar maple sapling density was also positively correlated with base saturation and calcium saturation of the B horizon (r = 0.56 and 0.58). Over a 30-year period, the increase in American beech sapling basal area was substantial compared to mitigated increases found in sugar maple and yellow birch depending upon treatment. Our results provide useful information on integration of sapling data into forest management.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Published in Forest Ecology and Management 358: 261-271. https:\/\/doi.org\/10.1016\/j.foreco.2015.09.020 We used long-term data collected from 22 study sites in northern hardwood stands comprised of sugar maple (Acer saccharum Marsh.), yellow birch (Betula alleghaniensis Britt.), and American beech (Fagus grandifolia Ehrh.) to establish relationships between sapling abundance and tree ingrowth. After 10 years, postharvest sapling density [&hellip;]<\/p>\n","protected":false},"template":"","format":"standard","cptt_secteur":[1179],"cptt_theme":[1180,1181,1182],"cptt_categ_publi":[1149],"cptt_auteurs_ministeriels":[1068,1088],"class_list":["post-82543","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-f-guillemette"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>On the relationship between saplings and ingrowth in northern hardwood stands - Minist\u00e8re des Ressources naturelles et des For\u00eats<\/title>\n<meta name=\"description\" content=\"Study on relationship between saplings and ingrowth in hardwood stands provides information on integrating sapling data in forest management.\" \/>\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\/relationship-between-saplings-ingrowth\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"On the relationship between saplings and ingrowth in northern hardwood stands - 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