The influence of electron donor on denitrification and nitrous oxide production in wetland ecosystem

电子供体对湿地生态系统反硝化和一氧化二氮生成的影响

• 批准号: 23710018
• 负责人: SENGA Yukiko
• 金额: $ 2.91万
• 依托单位: Toho University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23710018/
• 关键词: 脱窒; 溶存有機物（DOM）; 水域; 溶存有機物（DOC）; 亜酸化窒素（N2O）; 湿原; N2O

The influences of dissolved organic matter (DOM) on denitrifying activity were researched with the sediment of Lake Kasumigaura. To examine the molecular weight of DOM on denitrification, the additions of organic compounds with different molecular weight to denitrifying activity were carried out. As a result, denitrification would not necessarily depend on the molecular weight of DOM. Moreover, to examine the mean bond enthalpy of DOM on denitrification, the organic compounds with different mean bond enthalpy but almost similar molecular weight (ca. 100) were added to denitrifying activity. As a result, denitrifying activity and the mean bond enthalpy of DOM did not have the correlation. Future studies are necessary to clarify the interaction of denitrification and DOM.

以霞浦湖沉积物为对象，研究了溶解性有机物（DOM）对反硝化活性的影响。为了考察DOM分子量对反硝化作用的影响，添加了不同分子量的有机化合物对反硝化活性的影响。因此，反硝化不一定取决于 DOM 的分子量。此外，为了检查DOM对反硝化作用的平均键焓，将具有不同平均键焓但分子量几乎相似（约100）的有机化合物添加到反硝化活性中。结果表明，反硝化活性与DOM的平均键焓不存在相关性。未来的研究有必要阐明反硝化和 DOM 的相互作用。

项目成果

Vertical profiles of DIN, DOC and microbial activities in the peat soil in Kushiro Mire, northeastern Japan

日本东北部钏路泥炭土中 DIN、DOC 和微生物活动的垂直剖面

• 发表时间: 2011
• 期刊: Limnology
• 影响因子: 1.6
• 作者: Senga Y;Hiroki M;Nakamura Y;Watarai Y;Watanabe Y;Nohara S
• 通讯作者: Nohara S

釧路湿原における土壌表層と深層の微生物機能の比較

钏路湿地土壤表层与深层微生物功能比较

• 发表时间: 2014
• 作者: Senga Y;Hiroki M;Nakamura Y;Watarai Y;Watanabe Y;Nohara S;千賀有希子,広木幹也,照井滋晴,野原精一
• 通讯作者: 千賀有希子,広木幹也,照井滋晴,野原精一

釧路湿原における土壌間隙水の水質特性

钏路湿地土壤孔隙水水质特征

• 作者: Senga Y;Hiroki M;Nakamura Y;Watarai Y;Watanabe Y;Nohara S;千賀有希子,広木幹也,照井滋晴,野原精一;千賀 有希子，大沢 雄一郎，照井 滋晴，対馬 孝治，白木 洋平広木 幹也，野原 精一
• 通讯作者: 千賀 有希子，大沢 雄一郎，照井 滋晴，対馬 孝治，白木 洋平広木 幹也，野原 精一