{"id":82013,"date":"2019-01-30T12:12:24","date_gmt":"2019-01-30T17:12:24","guid":{"rendered":"https:\/\/mrnf.gouv.qc.ca\/nos-publications\/balsam-fir-relationship-constancy-regions\/"},"modified":"2019-01-30T12:12:24","modified_gmt":"2019-01-30T17:12:24","slug":"balsam-fir-relationship-constancy-regions","status":"publish","type":"cpt_publication","link":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/balsam-fir-relationship-constancy-regions\/","title":{"rendered":"Balsam fir self-thinning relationship and its constancy among different ecological regions"},"content":{"rendered":"\n<p>Published in<strong> Canadian Journal of Forest Research 31: 950-959<\/strong><\/p>\n<p>The constancy of balsam fir (<em>Abies balsamea <\/em>(L.) Mill.) self-thinning relationship has been investigated among four study areas located in different ecological regions of Qu\u00e9bec&#8217;s humid boreal forest. These four study areas contained respectively 348, 252, 146, and 55 observations (plots x measures) sampled over a period of up to 40 years. A self-thinning fitting method was developed to position objectively the self-thinning lines but, moreover, to allow comparisons among the different study areas. This method relies on principal component analysis to estimate the self-thinning line parameters and on the &#8220;jackknife&#8221; procedure to provide a standard error of these estimates. Results demonstrate a concordance for the slope (<em>p<\/em> = 0.136) and the intercept (<em>p<\/em> = 0.148) among self-thinning relationships of those study areas. The combination of these four study areas in one large data set, to provide a general estimation of balsam fir self-thinning Iine, has given a slope of -1.441 with a 4.114 intercept which is in agreement with the -3\/2 power law of self-thinning. ln this study, this law was able to describe the size-density relationship of stands of various ages and growing within different conditions as expressed by the different ecological regions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Published in Canadian Journal of Forest Research 31: 950-959 The constancy of balsam fir (Abies balsamea (L.) Mill.) self-thinning relationship has been investigated among four study areas located in different ecological regions of Qu\u00e9bec&#8217;s humid boreal forest. These four study areas contained respectively 348, 252, 146, and 55 observations (plots x measures) sampled over a [&hellip;]<\/p>\n","protected":false},"template":"","format":"standard","cptt_secteur":[1179],"cptt_theme":[1180,1181,1182],"cptt_categ_publi":[1149],"cptt_auteurs_ministeriels":[1116],"class_list":["post-82013","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-tremblay"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Balsam fir self-thinning relationship and its constancy among different ecological regions - Minist\u00e8re des Ressources naturelles et des For\u00eats<\/title>\n<meta name=\"description\" content=\"These four study areas contained respectively 348, 252, 146, and 55 observations (plots x measures) sampled over a period of up to 40 years.\" \/>\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\/balsam-fir-relationship-constancy-regions\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Balsam fir self-thinning relationship and its constancy among different ecological regions - 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Minist\u00e8re des Ressources naturelles et des For\u00eats","description":"These four study areas contained respectively 348, 252, 146, and 55 observations (plots x measures) sampled over a period of up to 40 years.","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\/balsam-fir-relationship-constancy-regions\/","og_locale":"en_US","og_type":"article","og_title":"Balsam fir self-thinning relationship and its constancy among different ecological regions - Minist\u00e8re des Ressources naturelles et des For\u00eats","og_description":"These four study areas contained respectively 348, 252, 146, and 55 observations (plots x measures) sampled over a period of up to 40 years.","og_url":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/balsam-fir-relationship-constancy-regions\/","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":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/balsam-fir-relationship-constancy-regions\/","url":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/balsam-fir-relationship-constancy-regions\/","name":"Balsam fir self-thinning relationship and its constancy among different ecological regions - 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