{"id":829,"date":"2023-07-11T10:42:30","date_gmt":"2023-07-11T01:42:30","guid":{"rendered":"https:\/\/www.elst.okayama-u.ac.jp\/en\/?page_id=829"},"modified":"2026-04-21T09:02:30","modified_gmt":"2026-04-21T00:02:30","slug":"areas03_nou","status":"publish","type":"page","link":"https:\/\/www.elst.okayama-u.ac.jp\/en\/education\/mc-chikyu\/areas03_nou\/","title":{"rendered":"Environmental Biogeochemistry"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-69 aligncenter\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas03_nou\/theme_IMG_7951.jpg\" alt=\"\" width=\"508\" height=\"380\"><\/p>\n<p>&nbsp;<\/p>\n<table class=\"el_table_fix\" style=\"width: 100%\">\n<tbody>\n<tr>\n<th style=\"width: 20%\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas03_nou\/Maeda Morihiro.jpg\" width=\"320\" height=\"408\"><\/th>\n<td style=\"width: 80%\">\n<ul>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">Prof. MAEDA Morihiro<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">E-mail: mun<span style=\"color: #0000ff\"> [at]<\/span> cc.okayama-u.ac.jp<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">greenhouse gases, nitrogen, phosphorus, sediment, soil, organic waste, water<br \/>\n<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: 12pt\"><a class=\"el_linkBtn\" href=\"https:\/\/soran.cc.okayama-u.ac.jp\/html\/6bcf79650a7dc12674506e4da22f6611_en.html\">Directory of Researchers<\/a>\u3000\u3000\u3000<a class=\"el_linkBtn\" href=\"http:\/\/www.eme.okayama-u.ac.jp\/Sections\/Lithosphere\/index-e.html\">Link to group homepage<\/a><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Agriculture is responsible for emissions of greenhouse gases (GHGs) such as carbon dioxide (CO<span style=\"font-size: 8pt\">2<\/span>), nitrous oxide (N<span style=\"font-size: 8pt\">2<\/span>O), and methane (CH<span style=\"font-size: 8pt\">4<\/span>). Production of these gases in farmland soil results from biological processes like organic matter decomposition, nitrification and denitrification, and highly depends on organic matter inputs. We aim at analyzing the effects of organic matter amendment on GHGs emissions. In particular, we are interested in agricultural soil amended with livestock compost.<\/p>\n<p>&nbsp;<\/p>\n<table class=\"el_table_fix\" style=\"width: 100%\">\n<tbody>\n<tr>\n<th style=\"width: 20%\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas13_toshi\/Hashiguchi Ayumi.jpg\" width=\"320\" height=\"408\"><\/th>\n<td style=\"width: 80%\">\n<ul>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">Assoc. Prof. HASHIGUCHI Ayumi<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">E-mail: hashiguchi-a <span style=\"color: #0000ff\">[at]<\/span> okayama-u.ac.jp \uff09<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">Soil and Water Environment \/ Water Treatment \/ Microbial Applications\/ Chemical Substances\n<p>\n<\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 12pt\"><a class=\"el_linkBtn\" href=\"https:\/\/soran.cc.okayama-u.ac.jp\/html\/ecd2b4d4f70319f3bc16db0f9fd601f5_en.html\">Directory of Researchers<\/a>&nbsp;<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>Improvement of Sulfate-reducing bacteria-based wastewater treatment by utilizing quorum sensing.<\/h5>\n<p><a href=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas13_toshi\/img_Hashiguchi Ayumi.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas13_toshi\/img_Hashiguchi Ayumi.jpg\" alt=\"\" width=\"230\" height=\"146\"><\/a><\/p>\n<p>I am currently working on improving Sulfate-reducing bacteria-based wastewater treatment by adding the autoinducer. It is well known that<br \/>\nautoinducers (AIs) are utilized by microorganisms for their communications, and exhibit their microbial functions such as biofilm formation, luminance,<br \/>\nand so on. However, details of the mechanisms and functions caused by the addition of AIs to diverse microorganisms like activated sludge are unclear.<br \/>\nThe aim of this study is to accelerate wastewater treatment by clarifying which AIs contribute efficiently to improving water treatment capacity in the wastewater treatment process.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Prof. MAEDA Morihiro E-mail: mun [at] cc.okayama-u.ac.jp greenhouse gases, nitrogen, phosphorus, sedime [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":150,"menu_order":170,"comment_status":"closed","ping_status":"closed","template":"template-layout_single.php","meta":{"footnotes":""},"class_list":["post-829","page","type-page","status-publish","hentry"],"aioseo_notices":[],"publishpress_future_action":{"enabled":false,"date":"2026-05-18 11:00:41","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/829","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/comments?post=829"}],"version-history":[{"count":15,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/829\/revisions"}],"predecessor-version":[{"id":3660,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/829\/revisions\/3660"}],"up":[{"embeddable":true,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/150"}],"wp:attachment":[{"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/media?parent=829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}