{"id":160,"date":"2014-03-20T22:12:16","date_gmt":"2014-03-20T22:12:16","guid":{"rendered":"https:\/\/cpaleo.uqam.ca\/?page_id=160"},"modified":"2023-05-06T20:33:34","modified_gmt":"2023-05-06T20:33:34","slug":"reconstitution-paleoecologique-des-conditions-initiales-de-developpement-du-complexe-tourbeux-de-lac-a-la-tortue-mauricie-quebec","status":"publish","type":"post","link":"https:\/\/cpaleo.uqam.ca\/en\/reconstitution-paleoecologique-des-conditions-initiales-de-developpement-du-complexe-tourbeux-de-lac-a-la-tortue-mauricie-quebec\/","title":{"rendered":"Paleoecological reconstruction of the initial development conditions of the Lac-\u00e0-la-Tortue peat complex, Mauricie, Qu\u00e9bec"},"content":{"rendered":"<div class=\"wp-block-cover alignfull is-light\" style=\"min-height:250px;aspect-ratio:unset;\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-0 has-background-dim\"><\/span><img loading=\"lazy\" decoding=\"async\" width=\"2272\" height=\"1704\" class=\"wp-block-cover__image-background wp-image-361\" alt=\"\" src=\"https:\/\/cpaleo.uqam.ca\/wp-content\/uploads\/2022\/03\/Laforge7_Ours-1.jpg\" style=\"object-position:53% 25%\" data-object-fit=\"cover\" data-object-position=\"53% 25%\" srcset=\"https:\/\/cpaleo.uqam.ca\/wp-content\/uploads\/2022\/03\/Laforge7_Ours-1.jpg 2272w, https:\/\/cpaleo.uqam.ca\/wp-content\/uploads\/2022\/03\/Laforge7_Ours-1-300x225.jpg 300w, https:\/\/cpaleo.uqam.ca\/wp-content\/uploads\/2022\/03\/Laforge7_Ours-1-1024x768.jpg 1024w, https:\/\/cpaleo.uqam.ca\/wp-content\/uploads\/2022\/03\/Laforge7_Ours-1-768x576.jpg 768w, https:\/\/cpaleo.uqam.ca\/wp-content\/uploads\/2022\/03\/Laforge7_Ours-1-1536x1152.jpg 1536w, https:\/\/cpaleo.uqam.ca\/wp-content\/uploads\/2022\/03\/Laforge7_Ours-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 2272px) 100vw, 2272px\" \/><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<p class=\"has-text-align-center has-large-font-size\"><\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Paleoecological reconstruction of the initial development conditions of the Lac-\u00e0-la-Tortue peat complex, Mauricie, Qu\u00e9bec  | 2014 \u2013 2016<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"alignnormal\"><div id=\"metaslider-id-1262\" style=\"width: 100%; margin: 0 auto;\" class=\"ml-slider-3-108-0 metaslider metaslider-flex metaslider-1262 ml-slider has-dots-nav ms-theme-default\" role=\"region\" aria-label=\"Lac-\u00e0-la-Tortue\" data-height=\"500\" data-width=\"800\">\n    <div id=\"metaslider_container_1262\">\n        <div id=\"metaslider_1262\" class=\"flexslider\">\n            <ul class='slides'>\n                <li style=\"display: block; width: 100%;\" class=\"slide-1268 ms-image\" aria-roledescription=\"slide\" data-date=\"2022-04-12 02:51:21\" data-filename=\"Lac-a-la-Tortue6-scaled-800x500.jpg\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cpaleo.uqam.ca\/wp-content\/uploads\/2022\/04\/Lac-a-la-Tortue6-scaled-800x500.jpg\" height=\"500\" width=\"800\" alt=\"\" class=\"slider-1262 slide-1268 msDefaultImage\" title=\"Lac-\u00e0-la-Tortue6\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-1269 ms-image\" aria-roledescription=\"slide\" data-date=\"2022-04-12 02:51:21\" data-filename=\"Lac-a-la-Tortue5-scaled-800x500.jpg\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cpaleo.uqam.ca\/wp-content\/uploads\/2022\/04\/Lac-a-la-Tortue5-scaled-800x500.jpg\" height=\"500\" width=\"800\" alt=\"\" class=\"slider-1262 slide-1269 msDefaultImage\" title=\"Lac-\u00e0-la-Tortue5\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-1270 ms-image\" aria-roledescription=\"slide\" data-date=\"2022-04-12 02:51:21\" data-filename=\"Lac-a-la-Tortue4-2-scaled-800x500.jpg\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cpaleo.uqam.ca\/wp-content\/uploads\/2022\/04\/Lac-a-la-Tortue4-2-scaled-800x500.jpg\" height=\"500\" width=\"800\" alt=\"\" class=\"slider-1262 slide-1270 msDefaultImage\" title=\"Lac-\u00e0-la-Tortue4 (2)\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-1271 ms-image\" aria-roledescription=\"slide\" data-date=\"2022-04-12 02:51:21\" data-filename=\"Lac-a-la-Tortue3-scaled-800x500.jpg\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cpaleo.uqam.ca\/wp-content\/uploads\/2022\/04\/Lac-a-la-Tortue3-scaled-800x500.jpg\" height=\"500\" width=\"800\" alt=\"\" class=\"slider-1262 slide-1271 msDefaultImage\" title=\"Lac-\u00e0-la-Tortue3\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-1272 ms-image\" aria-roledescription=\"slide\" data-date=\"2022-04-12 02:51:21\" data-filename=\"Lac-a-la-Tortue2-scaled-800x500.jpg\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cpaleo.uqam.ca\/wp-content\/uploads\/2022\/04\/Lac-a-la-Tortue2-scaled-800x500.jpg\" height=\"500\" width=\"800\" alt=\"\" class=\"slider-1262 slide-1272 msDefaultImage\" title=\"Lac-\u00e0-la-Tortue2\" \/><\/li>\n            <\/ul>\n        <\/div>\n        \n    <\/div>\n<\/div><\/div>\n\n\n\n<p>Study sites: Lac-\u00e0-la-Tortue<\/p>\n\n\n\n<p>Person in charge: Michelle Garneau (UQAM)<\/p>\n\n\n\n<p>Graduate student: Louis-Martin Pilote (M. Sc., UQAM)<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Despite the progress made over the past decade, the conditions under which peatlands in the St. Lawrence Lowlands developed in the early Holocene, as well as their subsequent lateral expansion and long-term carbon accumulation dynamics in response to past climatic variations, remain largely unknown. Identifying the relative importance of climate and autogenic factors on the development of peat ecosystems is essential to deepen our understanding of the long-term dynamics of these environments. With a warming climate predicted for boreal regions in the next few years, it's more relevant than ever to know how peat ecosystems will react to it, especially in view of the essential ecological services they provide and the role they play in the carbon cycle. Moreover, most of the vast peat complexes of the St. Lawrence Lowlands have never been studied in depth or used to obtain regional climate reconstructions, which partly explains this lack of knowledge. A better understanding of the chronology and initial conditions of development of a peatland complex representative of the region's peatlands could be the key to addressing these issues.&nbsp;<\/p>\n\n\n\n<p>In order to address this issue, this project presents the development of the largest peat complex in southern Qu\u00e9bec, that of Lac-\u00e0-la-Tortue. Our initial hypothesis is that the Lac-\u00e0-la-Tortue peat complex is the result of the filling of a shallow topographic depression located above the paleodelta of the Saint-Maurice River, followed by the paludification of reworked deltaic deposits into an eolian system on the periphery.<\/p>\n\n\n\n<p>Objectives:<\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\">\n<li>Document the initiation patterns of the deepest sector of the peatland and its lateral expansion dynamics over time;<\/li>\n\n\n\n<li>Reconstruct the composition of initial plant communities and their subsequent evolution;<\/li>\n\n\n\n<li>Assessing the relative importance of climate vs. allogenic factors and their influence on peatland development;<\/li>\n\n\n\n<li>Quantify the carbon content stored at the scale of the peat complex.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>2014 \u2013 2016<\/p>","protected":false},"author":4,"featured_media":1265,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1],"tags":[29,38,31],"class_list":["post-160","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-carbone","tag-holocene","tag-tourbiere-ombrotrophe"],"_links":{"self":[{"href":"https:\/\/cpaleo.uqam.ca\/en\/wp-json\/wp\/v2\/posts\/160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cpaleo.uqam.ca\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cpaleo.uqam.ca\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cpaleo.uqam.ca\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/cpaleo.uqam.ca\/en\/wp-json\/wp\/v2\/comments?post=160"}],"version-history":[{"count":12,"href":"https:\/\/cpaleo.uqam.ca\/en\/wp-json\/wp\/v2\/posts\/160\/revisions"}],"predecessor-version":[{"id":1625,"href":"https:\/\/cpaleo.uqam.ca\/en\/wp-json\/wp\/v2\/posts\/160\/revisions\/1625"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cpaleo.uqam.ca\/en\/wp-json\/wp\/v2\/media\/1265"}],"wp:attachment":[{"href":"https:\/\/cpaleo.uqam.ca\/en\/wp-json\/wp\/v2\/media?parent=160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cpaleo.uqam.ca\/en\/wp-json\/wp\/v2\/categories?post=160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cpaleo.uqam.ca\/en\/wp-json\/wp\/v2\/tags?post=160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}