Irrigation of DOC-rich liquid promotes potential denitrification rate and decreases N₂O/(N₂O+N₂) product ratio in a 0-2 m soil profile

详细信息    查看全文

• 作者：Shuping Qin^a ; ^b ; Chunsheng Hu^b ; ^{cshu@sjziam.ac.cn} ; ^{meimei841114@163.com} ; Tim J. Clough^c ; Jiafa Luo^d ; Oene Oenema^e ; Shungui Zhou^a
• 关键词：Dissolved organic carbon ; Denitrification ; Nitrate leaching ; Nitrous oxide ; N2O/(N2O+N2) ratio
• 刊名：Soil Biology and Biochemistry
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：106
• 期：Complete
• 页码：1-8
• 全文大小：1528 K
• 卷排序：106

文摘

DOC-rich liquid was prepared from straw. DOC infiltration removed nitrate in a 0–2 m soil profile. N2 was the predominant end product from denitrification under anaerobic condition. The mass ratio between consumed DOC and nitrate-N was 5 after DOC infiltration. DOC infiltration has the potential to reduce the risk of subsoil nitrate leaching.