{"id":82548,"date":"2019-01-30T12:14:32","date_gmt":"2019-01-30T17:14:32","guid":{"rendered":"https:\/\/mrnf.gouv.qc.ca\/nos-publications\/organic-carbon-organic-matter\/"},"modified":"2019-01-30T12:14:32","modified_gmt":"2019-01-30T17:14:32","slug":"organic-carbon-organic-matter","status":"publish","type":"cpt_publication","link":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/organic-carbon-organic-matter\/","title":{"rendered":"Organic carbon, organic matter and bulk density relationships in boreal forest soils"},"content":{"rendered":"\n<p>Published in <strong>Canadian Journal of Soil Science&nbsp;88: 315-325<\/strong><\/p> <p>Relationships between soil organic carbon (SOC), organic matter (SOM), and bulk density (BD) were established in acidic loamy to sandy loam fine fractions of forest soils in Qu\u00e9bec (Canada). The interest of such relationships rests with the possibility of using simple and rapid techniques to estimate SOC and BD. It is also a crucial step in establishing the correspondence among several data bases when SOC data are obtained using different measurement techniques. In this study, SOC was measured by dry combustion (SOC<sub>DC<\/sub>) and wet digestion (SOC<sub>WD<\/sub>) methods, and organic matter by loss-on ignition (LOI). Our results suggest that, in these soils: (1) LOI can be used for estimating SOC (<em>r<\/em><sup>2<\/sup> = 0.95, RMSEP = 16%) and SOC<sub>DC<\/sub>\/SOM significantly decreased with increasing depth from 0.49 to 0.27; (2) SOC<sub>DC<\/sub> and SOC<sub>WD <\/sub>were highly correlated. Even if SOC<sub>WD<\/sub> provided near complete recovery of SOC<sub>DC<\/sub>, dry combustion remains the preferred method for SOC analysis since SOC<sub>WD<\/sub> recovery decreased with increasing depth from 100 to 83%. (3) BD was also strongly related to SOM (<em>r<\/em><sup>2<\/sup> = 0.81). We recommend using the organic density approach to estimate BD from SOM because it allows BD to be predicted without significant bias and with a degree of accuracy of 14%.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Published in Canadian Journal of Soil Science&nbsp;88: 315-325 Relationships between soil organic carbon (SOC), organic matter (SOM), and bulk density (BD) were established in acidic loamy to sandy loam fine fractions of forest soils in Qu\u00e9bec (Canada). The interest of such relationships rests with the possibility of using simple and rapid techniques to estimate SOC [&hellip;]<\/p>\n","protected":false},"template":"","format":"standard","cptt_secteur":[1179],"cptt_theme":[1183,1185,1180,1181],"cptt_categ_publi":[1149],"cptt_auteurs_ministeriels":[1102,1103],"class_list":["post-82548","cpt_publication","type-cpt_publication","status-publish","format-standard","hentry","cptt_secteur-forests","cptt_theme-ecosystems-and-environment","cptt_theme-forest-ecology","cptt_theme-forestry-research","cptt_theme-forests","cptt_categ_publi-scientific-article","cptt_auteurs_ministeriels-r-ouimet","cptt_auteurs_ministeriels-c-perie"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Organic carbon, organic matter and bulk density relationships in boreal forest soils - Minist\u00e8re des Ressources naturelles et des For\u00eats<\/title>\n<meta name=\"description\" content=\"The interest of such relationships rests with the possibility of using simple and rapid techniques to estimate SOC and BD.\" \/>\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\/organic-carbon-organic-matter\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Organic carbon, organic matter and bulk density relationships in boreal forest soils - 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