{"id":82022,"date":"2019-01-30T12:13:03","date_gmt":"2019-01-30T17:13:03","guid":{"rendered":"https:\/\/mrnf.gouv.qc.ca\/nos-publications\/base-cation-reservoirs-soil-forested-catchments\/"},"modified":"2019-01-30T12:13:03","modified_gmt":"2019-01-30T17:13:03","slug":"base-cation-reservoirs-soil-forested-catchments","status":"publish","type":"cpt_publication","link":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/base-cation-reservoirs-soil-forested-catchments\/","title":{"rendered":"Base cation reservoirs in soil control the buffering capacity of lakes in forested catchments"},"content":{"rendered":"\n<p>Published in <strong>Canadian Journal of Fisheries and Aquatic Sciences 63: 471-474<\/strong><\/p>\n<p>The acidification of forest soils and surface waters and their relatively poor recovery record following reductions in atmospheric sulphur emissions is a major ongoing environmental problem, particularly in northeastern North America. The slow recovery of surface water is widely hypothesized to result from depletion of reservoirs of base cations in soil. This is concordant with the theory that the acid-neutralizing capacity (ANC) of lakes is likely proportional to the size of the exchangeable base cation reservoirs present in surrounding watershed soils. However, data describing these linkages are still nonexistent in the literature. Here we show that lake ANC is highly predictable (<em>r<\/em><sup>2<\/sup> = 0.75) based on the size of the exchangeable Ca<sup>2+<\/sup> reservoir in soil in 21 catchments representative of soil and lake conditions encountered in northeastern North America. This finding indirectly supports the hypothesis that the poor recovery of surface water from acidification is governed by the size of base cation reservoirs present in catchment soils. The size of the base cation reservoir in soil is thus a strong indicator of the acid\u2013base status of both soils and surface waters.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Published in Canadian Journal of Fisheries and Aquatic Sciences 63: 471-474 The acidification of forest soils and surface waters and their relatively poor recovery record following reductions in atmospheric sulphur emissions is a major ongoing environmental problem, particularly in northeastern North America. The slow recovery of surface water is widely hypothesized to result from depletion [&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],"class_list":["post-82022","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"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Base cation reservoirs in soil control the buffering capacity of lakes in forested catchments - Minist\u00e8re des Ressources naturelles et des For\u00eats<\/title>\n<meta name=\"description\" content=\"The slow recovery of surface water is widely hypothesized to result from depletion of reservoirs of base cations in soil.\" \/>\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\/base-cation-reservoirs-soil-forested-catchments\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Base cation reservoirs in soil control the buffering capacity of lakes in forested catchments - 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