Dissolved organic carbon and dissolved oxygen determine the nitrogen removal rate constant in small water bodies of intensive agricultural region

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成果类型：

期刊论文

作者：

Yan, Xing;Han, Haojie;Li, Xiaohan;Wen, Jiong;Rong, Xiangmin;...

通讯作者：

Xia, YQ

作者机构：

[Xia, Yongqiu; Han, Haojie; Li, Xiaohan; Yan, Xiaoyuan; Yan, Xing] Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Changshu Natl Agroecosyst Observat & Res Stn, Nanjing 210008, Peoples R China.

[Han, Haojie; Li, Xiaohan; Yan, Xing] Univ Chinese Acad Sci, Beijing 100049, Peoples R China.

[Wen, Jiong] Yueyang Agr Res Acad, Yueyang 414215, Peoples R China.

[Rong, Xiangmin] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.

通讯机构：

[Xia, YQ ] C

Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Changshu Natl Agroecosyst Observat & Res Stn, Nanjing 210008, Peoples R China.

语种：

英文

关键词：

N removal kinetics;Small water bodies;Dissolved organic carbon;Intensive agricultural areas

期刊：

Agriculture Ecosystems & Environment

ISSN：

0167-8809

年：

2024

卷：

361

页码：

108822

DOI：

10.1016/j.agee.2023.108822

基金类别：

CRediT authorship contribution statement Xing Yan: Data curation, Analysis, Writing – original draft preparation. Haojie Han: Data curation. Xiaohan Li: Data curation. Jiong Wen: Data curation. Xiangmin Rong: Writing – review & editing, acquisition. Yongqiu Xia: Conceptualization, Writing –review & editing, acquisition. Xiaoyuan Yan: Conceptualization, acquisition.

机构署名：

本校为其他机构

院系归属：

资源环境学院

摘要：

Small water bodies are extensively distributed and play critical roles in nitrogen (N) removal, primarily through sediment denitrification. However, our comprehension understanding of the N removal rate constant in these systems, particularly within the first-order kinetics model, remains limited. To address this gap, a one-year field study was conducted to investigate the N removal rate and N removal rate constant in various small water bodies within a typical intensive agricultural area. We observed a decrease in N removal rates in the downstream direction, from ditches to downstream ponds a...

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Dissolved organic carbon and dissolved oxygen determine the nitrogen removal rate constant in small water bodies of intensive agricultural region

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