{"id":33513,"date":"2024-05-20T11:00:49","date_gmt":"2024-05-20T09:00:49","guid":{"rendered":"https:\/\/resoilfoundation.org\/?p=33513"},"modified":"2024-05-22T15:06:09","modified_gmt":"2024-05-22T13:06:09","slug":"organic-carbon-soil-forest","status":"publish","type":"post","link":"https:\/\/resoilfoundation.org\/en\/articles\/organic-carbon-soil-forest\/","title":{"rendered":"How organic carbon accumulates in acidified forest soils"},"content":{"rendered":"<h2>A study by the Chinese Academy of Sciences reveals how forest soil acidification promotes both mineral protection and plant-derived carbon accumulation<\/h2>\n<p style=\"text-align: center;\">by Matteo Cavallito<\/p>\n<p>&nbsp;<\/p>\n<p>Acidification is known to pose <a href=\"https:\/\/resoilfoundation.org\/news\/futuro-suolo\/\" target=\"_blank\" rel=\"noopener\">a threat to soils<\/a>. Its impact on soil&#8217;s ability to <strong>sequester carbon<\/strong>, however, is not fully understood. Little is known, in particular, on soil carbon accumulation in fully developed tropical and subtropical forests, which have long been highly acidified. These include <strong>China<\/strong>&#8216;s southern forests, that contribute to the storage of more than half of the organic carbon stored in that country&#8217;s forest ecosystem. Nthese ecosystems have recently been the subject of study.<\/p>\n<div class='avia-iframe-wrap'>\n<blockquote class=\"wp-embedded-content\" data-secret=\"FQADeSjQtj\"><p><a href=\"https:\/\/resoilfoundation.org\/en\/articles\/sand-cellulose-china-desert\/\">China is fighting desertification by adding cellulose to sand<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;China is fighting desertification by adding cellulose to sand&#8221; &#8212; Re Soil Foundation\" src=\"https:\/\/resoilfoundation.org\/en\/articles\/sand-cellulose-china-desert\/embed\/#?secret=b3lPa29Sx4#?secret=FQADeSjQtj\" data-secret=\"FQADeSjQtj\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/div>\n<h5>The study<\/h5>\n<p>Shedding light on the phenomenon of carbon sequestration, in fact, have been researchers from the South China Botanical Garden of the <strong>Chinese Academy of Sciences<\/strong>. Through an experiment conducted in Dinghushan Nature Reserve, Guangdong Province, the authors were able to describe the <strong>mechanism of carbon accumulation<\/strong> and stabilization in monsoon evergreen broadleaf forests.<\/p>\n<blockquote><p>The investigation involved two components of organic matter: particulate<strong> organic carbon (POC)<\/strong> and <strong>mineral-associated carbon (MAOC)<\/strong>. The researchers then set out to assess what mechanism and factors affected the collection of organic fractions.<\/p><\/blockquote>\n<p>&#8220;We conducted a 11-year field acid addition experiment to study how acid deposition affected the accumulation of soil organic carbon and its fractions,&#8221; says the <a href=\"https:\/\/link.springer.com\/article\/10.1007\/s11104-024-06608-8\" target=\"_blank\" rel=\"noopener\">study<\/a> published in the journal Plant and Soil. &#8220;Lignin <strong>phenols<\/strong> and <strong>amino sugars<\/strong> were used as two tracers for plant- and microbe-derived carbon.&#8221;<\/p>\n<div class='avia-iframe-wrap'>\n<blockquote class=\"wp-embedded-content\" data-secret=\"oNUZw3Wb3g\"><p><a href=\"https:\/\/resoilfoundation.org\/en\/articles\/roots-ai-soil-carbon\/\">Roots and A.I. offer carbon storage solutions<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Roots and A.I. offer carbon storage solutions&#8221; &#8212; Re Soil Foundation\" src=\"https:\/\/resoilfoundation.org\/en\/articles\/roots-ai-soil-carbon\/embed\/#?secret=JD0mHlJFOA#?secret=oNUZw3Wb3g\" data-secret=\"oNUZw3Wb3g\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/div>\n<h5>Acidification promotes carbon accumulation<\/h5>\n<p>&#8220;We found that both POC (0\u201320 cm) and MAOC (10\u201320 cm) were significantly increased by acid addition,&#8221; the authors explain. These, in particular, &#8220;significantly reduced the contributions of <strong>fungal-, bacterial- or total microbial residue<\/strong> carbon to SOC but significantly increased the plant-derived soil carbon in both soil depths.&#8221; In addition, the addition of acid particularly increased the lignin phenol from plants. And not without consequences.<\/p>\n<p>&#8220;The increase of lignin phenol and suppressed soil organic matter decomposition from soil microbes suggested that soil POC increased with acid addition,&#8221; the researchers explain. &#8220;Soil acidification strongly enhanced MAOC accumulation through increased <strong>lignin<\/strong> and mineral protection by iron-aluminum oxides and cations.&#8221;<\/p>\n<div class='avia-iframe-wrap'>\n<blockquote class=\"wp-embedded-content\" data-secret=\"Jz6wZev2Qw\"><p><a href=\"https:\/\/resoilfoundation.org\/en\/articles\/fungi-carbon-forest\/\">This is how fungi regulate the carbon cycle in forests<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;This is how fungi regulate the carbon cycle in forests&#8221; &#8212; Re Soil Foundation\" src=\"https:\/\/resoilfoundation.org\/en\/articles\/fungi-carbon-forest\/embed\/#?secret=RUmYChQWec#?secret=Jz6wZev2Qw\" data-secret=\"Jz6wZev2Qw\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/div>\n<h5>New information on forest dynamics<\/h5>\n<p>These results, the scientists conclude in a <a href=\"http:\/\/english.cas.ac.cn\/newsroom\/research_news\/life\/202404\/t20240428_661955.shtml\" target=\"_blank\" rel=\"noopener\">statement<\/a>, suggest that mineral protection and continuous supply of plant-derived carbon <strong>enhanced the accumulation and stabilization<\/strong> of organic element with soil acidification. The results &#8220;provide mechanistic support for the function of continuous carbon sequestration in deeply acidified forest soils.&#8221; Thus adding new insights into these kinds of dynamics.<\/p>\n<p>The topic has long been of interest to researchers in the country. Last year, a <a href=\"https:\/\/www.nature.com\/articles\/s41558-023-01864-5\" target=\"_blank\" rel=\"noopener\">study<\/a> by the Chinese Academy of Sciences itself highlighted in particular the crucial interactions between different species of fungi and plant biomass in <strong>forest ecosystems<\/strong>. The investigation <a href=\"https:\/\/resoilfoundation.org\/en\/articles\/fungi-carbon-forest\/\" target=\"_blank\" rel=\"noopener\">revealed<\/a> that in forests dominated by shrubs, the stock of carbon in the subsoil exceeds the amount recorded in forests where ectomycorrhizal fungi are prevalent <strong>by 25 percent<\/strong>. The ways in which these microorganisms influence the distribution of carbon among trees, however, are not yet known.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A study by the Chinese Academy of Sciences reveals how forest soil acidification promotes both mineral protection and plant-derived carbon accumulation<\/p>\n","protected":false},"author":4,"featured_media":33517,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[144,134],"tags":[201,220,187,165,237,188,186],"class_list":["post-33513","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-environment","category-articles","tag-asia-en","tag-carbon","tag-climate","tag-forests","tag-organic-matter","tag-research","tag-soil"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How organic carbon accumulates in 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