{"id":1122,"date":"2021-09-24T14:28:59","date_gmt":"2021-09-24T18:28:59","guid":{"rendered":"https:\/\/climatetoolkit.org\/?p=1122"},"modified":"2025-06-18T16:12:42","modified_gmt":"2025-06-18T20:12:42","slug":"biochar-research-at-morton-arboretum","status":"publish","type":"post","link":"https:\/\/climatetoolkit.org\/fr\/biochar-research-at-morton-arboretum\/","title":{"rendered":"Recherche sur le biochar \u00e0 l'Arboretum de Morton"},"content":{"rendered":"<p>Le biochar, substance issue de la combustion de d\u00e9chets organiques tels que les plantes mortes, les feuilles et les copeaux de bois, semble prometteur pour l'am\u00e9lioration des sols dans le cadre de la lutte contre le changement climatique. En fait, ce potentiel fait actuellement l'objet de recherches \u00e0 l'Arboretum de Morton par l'\u00e9cologiste des sols <strong>Dr. Meghan Midgley <\/strong>et coordinatrice de la recherche <strong>Michelle Catania<\/strong>. Nous nous sommes entretenus avec Meghan et Michelle pour d\u00e9couvrir comment leurs recherches ont commenc\u00e9 et ce qu'elles ont appris jusqu'\u00e0 pr\u00e9sent.<\/p>\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\" style=\"flex-basis:100%\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"345\" height=\"230\" data-id=\"1128\" src=\"https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Michelle-Catania_345x230-1.jpg\" alt=\"\" class=\"wp-image-1128\" srcset=\"https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Michelle-Catania_345x230-1.jpg 345w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Michelle-Catania_345x230-1-300x200.jpg 300w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Michelle-Catania_345x230-1-100x67.jpg 100w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Michelle-Catania_345x230-1-150x100.jpg 150w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Michelle-Catania_345x230-1-200x133.jpg 200w\" sizes=\"(max-width: 345px) 100vw, 345px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"229\" height=\"229\" data-id=\"1127\" src=\"https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Meghan.png\" alt=\"\" class=\"wp-image-1127\" srcset=\"https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Meghan.png 229w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Meghan-200x200.png 200w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Meghan-100x100.png 100w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Meghan-150x150.png 150w\" sizes=\"(max-width: 229px) 100vw, 229px\" \/><\/figure>\n<\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-contributes-to-the-increased-recent-interest-in-biochar\"><strong>Qu'est-ce qui explique l'int\u00e9r\u00eat croissant pour le biochar ?<\/strong><\/h2>\n\n\n\n<p><strong>MC :<\/strong> Les sols urbains pr\u00e9sentent des caract\u00e9ristiques de qualit\u00e9 m\u00e9diocre, telles qu'une faible capacit\u00e9 de r\u00e9tention d'eau et d'\u00e9l\u00e9ments nutritifs, des horizons mal structur\u00e9s et une grande variabilit\u00e9 de la teneur en mati\u00e8re organique. Ces caract\u00e9ristiques cr\u00e9ent des conditions moins qu'id\u00e9ales pour les arbres urbains \u00e0 longue dur\u00e9e de vie. Pour rem\u00e9dier \u00e0 ces disparit\u00e9s environnementales, il \u00e9tait logique d'\u00e9tudier les solutions propos\u00e9es par les communaut\u00e9s autochtones. Alors que les scientifiques mettaient au jour d'anciens sites arch\u00e9ologiques riches en \u00e9l\u00e9ments nutritifs, les communaut\u00e9s indig\u00e8nes ont commenc\u00e9 \u00e0 s'int\u00e9resser \u00e0 leurs propres solutions. <em>terra preta<\/em> dans le bassin amazonien, ils \u00e9taient <strong>d\u00e9couverte de sols noirs profonds et bien structur\u00e9s<\/strong> sur des sites qui ont support\u00e9 une agriculture extensive dans la for\u00eat tropicale pendant plus de mille ans, ce qui est atypique pour les sols tropicaux sujets \u00e0 l'agriculture sur br\u00fblis. Cela a suscit\u00e9 un grand int\u00e9r\u00eat de la part de la recherche mondiale pour l'\u00e9tude de l'impact du biochar sur l'assainissement de nos sols urbains et agricoles d\u00e9grad\u00e9s.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-research-have-you-completed-or-are-completing-with-biochar-and-soil\"><strong>Quelles sont les recherches que vous avez men\u00e9es ou que vous menez actuellement sur le biochar et le sol ?<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/10\/Biochar.jpg\" alt=\"\" class=\"wp-image-1224\" width=\"439\" height=\"329\" srcset=\"https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/10\/Biochar.jpg 450w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/10\/Biochar-300x225.jpg 300w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/10\/Biochar-100x75.jpg 100w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/10\/Biochar-150x112.jpg 150w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/10\/Biochar-200x150.jpg 200w\" sizes=\"(max-width: 439px) 100vw, 439px\" \/><\/figure><\/div>\n\n\n\n<p><strong>MC :<\/strong> Pour tester l'efficacit\u00e9 de la <strong>la capacit\u00e9 d'am\u00e9liorer la qualit\u00e9 des sols pour les paysages urbains<\/strong>Bryant Scharenbroch (professeur associ\u00e9 \u00e0 l'UWSP et chercheur \u00e0 The Morton Arboretum) et moi-m\u00eame avons travaill\u00e9 ensemble sur plusieurs projets diff\u00e9rents au niveau du paysage, de la p\u00e9pini\u00e8re et de la serre. Au d\u00e9part, nous avons mis en place une \u00e9tude en serre pour examiner 7 traitements (copeaux de bois, compost, biochar, biosolides, engrais NPK, th\u00e9 de compost a\u00e9r\u00e9, eau) sur 2 arbres de rue communs (Acer saccharum Marsh. et Gleditsia triacanthos) cultiv\u00e9s dans 3 types de sol (sable, loam limoneux, argile compact\u00e9e). Nous avons examin\u00e9 les r\u00e9ponses du sol et de l'arbre aux traitements pendant 18 mois et avons conclu l'\u00e9tude par une r\u00e9colte destructive de la biomasse a\u00e9rienne et souterraine. Nous avons appris que <strong>les biosolides et le biochar ont am\u00e9lior\u00e9 l'activit\u00e9 microbienne du sol<\/strong> Les traitements au biochar et aux biosolides ont connu la plus forte accumulation de biomasse par rapport \u00e0 l'autre traitement.<\/p>\n\n\n\n<p><strong>MC :<\/strong> Pour tester les traitements au biochar sur <strong>arbres de rue existants<\/strong>Nous avons mis en place deux \u00e9tudes au niveau du paysage dans la r\u00e9gion de Chicago. L'une dans un quartier proche du centre-ville de Chicago <strong>l'examen des fosses d'arbres<\/strong> (en projet) et une dans la banlieue sud-ouest de Bolingbrook <strong>examen des arbres de la promenade<\/strong> (sous presse). Les deux \u00e9tudes ont port\u00e9 sur des arbres de rue \u00e9tablis et sur une vari\u00e9t\u00e9 de m\u00e9canismes d'incorporation de diff\u00e9rents amendements afin d'am\u00e9liorer la sant\u00e9 du sol et des arbres. Nous avons utilis\u00e9 une combinaison de paillage vertical (creuser des trous dans le sol pour ajouter des amendements sous la surface), de labourage pneumatique (incorporation pneumatique de mat\u00e9riaux sans endommager les racines) et de m\u00e9thodes de paillage, ainsi que des combinaisons de mat\u00e9riaux et d'amendements riches en nutriments \u00e0 lib\u00e9ration rapide, tels que le compost, les biosolides et les engrais synth\u00e9tiques.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Tollway-Trees-Initiative_2018-10-16_R01_bed_002-scaled-1920x1280.25-c-default-1024x683.jpg\" alt=\"\" class=\"wp-image-1134\" width=\"481\" height=\"320\" srcset=\"https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Tollway-Trees-Initiative_2018-10-16_R01_bed_002-scaled-1920x1280.25-c-default-1024x683.jpg 1024w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Tollway-Trees-Initiative_2018-10-16_R01_bed_002-scaled-1920x1280.25-c-default-300x200.jpg 300w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Tollway-Trees-Initiative_2018-10-16_R01_bed_002-scaled-1920x1280.25-c-default-768x512.jpg 768w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Tollway-Trees-Initiative_2018-10-16_R01_bed_002-scaled-1920x1280.25-c-default-1536x1024.jpg 1536w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Tollway-Trees-Initiative_2018-10-16_R01_bed_002-scaled-1920x1280.25-c-default-100x67.jpg 100w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Tollway-Trees-Initiative_2018-10-16_R01_bed_002-scaled-1920x1280.25-c-default-150x100.jpg 150w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Tollway-Trees-Initiative_2018-10-16_R01_bed_002-scaled-1920x1280.25-c-default-200x133.jpg 200w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Tollway-Trees-Initiative_2018-10-16_R01_bed_002-scaled-1920x1280.25-c-default-450x300.jpg 450w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Tollway-Trees-Initiative_2018-10-16_R01_bed_002-scaled-1920x1280.25-c-default-600x400.jpg 600w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Tollway-Trees-Initiative_2018-10-16_R01_bed_002-scaled-1920x1280.25-c-default-900x600.jpg 900w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/Tollway-Trees-Initiative_2018-10-16_R01_bed_002-scaled-1920x1280.25-c-default.jpg 1920w\" sizes=\"(max-width: 481px) 100vw, 481px\" \/><figcaption>6\/9 - Arbres plant\u00e9s dans des lits amend\u00e9s avec des biosolides et du biochar.<\/figcaption><\/figure><\/div>\n\n\n\n<p><strong>MM :<\/strong> Dans le cadre du projet de bord de route, nous examinons les effets de plusieurs amendements sur la survie, la croissance et la sant\u00e9 de six esp\u00e8ces d'arbres diff\u00e9rentes. L'exp\u00e9rience comprend un compost traditionnel ainsi que deux traitements d'amendement biosolide et un m\u00e9lange biosolide-biochar. Deux ans apr\u00e8s le d\u00e9but de l'exp\u00e9rience, nous avons constat\u00e9 que l'amendement biosolide avait un effet positif sur la croissance et la sant\u00e9 de six esp\u00e8ces d'arbres. <strong>les sols du m\u00e9lange biosolide-biochar ont la densit\u00e9 apparente la plus faible<\/strong>, <strong>plus de mati\u00e8re organique et de disponibilit\u00e9 des nutriments<\/strong>et <strong>une augmentation de la croissance des arbres et de la teneur en chlorophylle<\/strong> que les sols et les arbres des parcelles de contr\u00f4le non amend\u00e9es. Mais \u00e0 part la densit\u00e9 apparente, qui \u00e9tait plus faible dans les parcelles de m\u00e9lange de biosolide et de biochar que dans les parcelles de biosolide seul, les r\u00e9ponses des sols et des arbres n'\u00e9taient pas tr\u00e8s diff\u00e9rentes entre les parcelles de m\u00e9lange de biosolide et de biochar et les parcelles de biosolide seul. En d'autres termes, les sols et les arbres r\u00e9agissent positivement aux biosolides, et il est difficile de dire si le biochar renforcera cet effet. J'attends avec impatience de voir ce qui se passera les ann\u00e9es suivantes - peut-\u00eatre que le biochar sera plus important au fil du temps s'il facilite cet effet. <strong>\"engrais \u00e0 lib\u00e9ration lente\"<\/strong> sur la disponibilit\u00e9 des nutriments et conserve une faible densit\u00e9 apparente en raison de sa tendance \u00e0 se d\u00e9composer lentement.<\/p>\n\n\n\n<p><strong>MC :<\/strong> Nous avons \u00e9tabli <strong>une exp\u00e9rience en p\u00e9pini\u00e8re<\/strong> sur le site de l'Arboretum Morton afin d'approfondir notre compr\u00e9hension des diff\u00e9rentes m\u00e9thodes d'incorporation du biochar et des diverses combinaisons d'amendements organiques et de biochar, dans le but de d\u00e9terminer les taux d'application id\u00e9aux. Les r\u00e9sultats de ces exp\u00e9riences contr\u00f4l\u00e9es dans la p\u00e9pini\u00e8re, associ\u00e9s aux r\u00e9ponses au niveau du paysage et de la serre, nous aideront \u00e0 interpr\u00e9ter les r\u00e9sultats pour notre r\u00e9gion. Pour l'instant, il semble que le biochar, seul ou en combinaison avec des engrais synth\u00e9tiques, des composts ou des biosolides, soit une source d'\u00e9l\u00e9ments nutritifs, <strong>sont capables d'att\u00e9nuer les effets des sols urbains de mauvaise qualit\u00e9, ce qui se traduit par une plus grande accumulation de biomasse.<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"are-there-additional-benefits-to-biochar\"><strong>Le biochar pr\u00e9sente-t-il d'autres avantages ?<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/image-1.png\" alt=\"\" class=\"wp-image-1131\" width=\"296\" height=\"197\" srcset=\"https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/image-1.png 264w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/image-1-100x67.png 100w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/image-1-150x100.png 150w, https:\/\/climatetoolkit.org\/wp-content\/uploads\/2021\/09\/image-1-200x133.png 200w\" sizes=\"(max-width: 296px) 100vw, 296px\" \/><\/figure><\/div>\n\n\n\n<p><strong>MM :<\/strong> En plus de maintenir potentiellement une disponibilit\u00e9 \u00e9lev\u00e9e des nutriments et une faible densit\u00e9 apparente au fil du temps, <strong>Le biochar peut \u00e9galement r\u00e9duire les effets du sel de d\u00e9neigement sur les arbres et le sol.<\/strong>. Le biochar a une surface \u00e9lev\u00e9e et le sodium peut se fixer sur cette surface au lieu de se retrouver dans les racines des arbres et dans les cours d'eau. Pour tester cette hypoth\u00e8se, nous avons ajout\u00e9 du biochar en couche sup\u00e9rieure ou m\u00e9lang\u00e9 du biochar \u00e0 des sols, plant\u00e9 quatre esp\u00e8ces diff\u00e9rentes de semis d'arbres dans des pots et arros\u00e9 les arbres avec ou sans ajout de chlorure de sodium une fois par semaine. Au bout de huit semaines, nous avons constat\u00e9 que l'utilisation du biochar en tant qu'amendement r\u00e9duit la quantit\u00e9 de sodium qui se retrouve dans l'eau du sol et favorise la croissance des esp\u00e8ces d'arbres qui poussent le plus rapidement, <a href=\"https:\/\/mortonarb.org\/plant-and-protect\/trees-and-plants\/hybrid-catalpa\/\"><strong>Catalpa du Nord<\/strong><\/a>.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"do-you-have-collaborators-on-your-biochar-research\"><strong>Avez-vous des collaborateurs pour vos recherches sur le biochar ?<\/strong><\/h2>\n\n\n\n<p><strong>MM :<\/strong> Ces deux projets ont rassembl\u00e9 des \u00e9quipes de l'Arboretum et d'ailleurs ! Le projet de bord de route est le fruit d'une collaboration avec le <a href=\"https:\/\/mortonarb.org\/science\/projects\/the-tollway-trees-initiative\/#!\"><strong>Autoroute de l'Illinois<\/strong><\/a>et les biosolides que nous avons utilis\u00e9s proviennent du district municipal des eaux us\u00e9es de la ville de Chicago. Tout le monde attend avec impatience les r\u00e9sultats de cette \u00e9tude, car ils peuvent nous aider \u00e0 concevoir de meilleurs projets de plantation d'arbres le long des routes \u00e0 l'avenir. Le projet de serre a \u00e9t\u00e9 men\u00e9 par un ancien lyc\u00e9en de l'Acad\u00e9mie des math\u00e9matiques et des sciences de l'Illinois, et nous travaillons toujours ensemble pour analyser et publier ses r\u00e9sultats.<\/p>\n\n\n\n<p><strong>MC :<\/strong> Toutes nos recherches sur le biochar ont \u00e9t\u00e9 men\u00e9es avec le soutien g\u00e9n\u00e9reux et la collaboration des Bartlett Tree Research Laboratories, ainsi qu'avec le financement de <a href=\"https:\/\/treefund.org\/\">Fonds de dotation pour la recherche et l'\u00e9ducation sur les arbres (TREE)<\/a> et <a href=\"https:\/\/mortonarb.org\/science\/center-for-tree-science\/living-collections-research\/\">Centre pour la science de l'arbre de l'Arboretum de Morton<\/a>.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Le biochar, une substance issue de la combustion de d\u00e9chets organiques tels que les plantes mortes, les feuilles et les copeaux de bois, semble prometteur en tant qu'amendement du sol visant \u00e0 att\u00e9nuer le changement climatique. En fait, son potentiel est actuellement \u00e9tudi\u00e9 \u00e0 l'Arboretum de Morton par ...<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/climatetoolkit.org\/fr\/biochar-research-at-morton-arboretum\/\"> <span class=\"screen-reader-text\">Recherche sur le biochar \u00e0 l'Arboretum de Morton<\/span> Lire la suite \"<\/a><\/p>","protected":false},"author":2,"featured_media":1223,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":""},"categories":[95,178],"tags":[99,158,159,161],"class_list":["post-1122","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-landscapes-and-horticulture","category-research","tag-morton-arboretum","tag-biochar-research","tag-soil-quality-for-urban-landscapes","tag-additional-benefits-to-trees"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Biochar Research at Morton Arboretum - The Climate Toolkit<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Biochar Research at Morton Arboretum - The Climate Toolkit\" \/>\n<meta property=\"og:description\" content=\"Biochar\u2013 a substance made by burning organic waste like dead plants, leaves, and wood chips \u2013 appears to have promise as a climate change mitigating soil enhancer. 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