Threshold-like effect of soil NO3- concentrations on denitrification product N2O/(N2O+N2) ratio is mediated by soil pH
文献类型： 外文期刊
第一作者： Zhang, Bowen
作者： Zhang, Bowen;Zhou, Minghua;Zhu, Bo;Pfuelb, Lisa;Burkart, Stefan;Well, Reinhard;Liu, Hongbin;Butterbach-Bahl, Klaus;Butterbach-Bahl, Klaus
作者机构：
关键词： Denitrification product ratio; Dinitrogen (N-2 ); Nitrous oxide (N2O); Soil pH; Nitrate (NO3- ); Threshold
期刊名称：SOIL BIOLOGY & BIOCHEMISTRY （ 影响因子：9.7； 五年影响因子：10.2 ）
ISSN： 0038-0717
年卷期： 2023 年 187 卷
页码：
收录情况： SCI
摘要： The interactive effects of soil pH and nitrate (NO3-) availability on denitrification-derived nitrous oxide (N2O) and dinitrogen (N-2) emissions, as well as N2O/(N2O + N-2) product ratio (N(2)Oi) remain difficult to evaluate. Here, we consecutively monitored denitrification-derived N2O and N-2 emissions with different soil pH and NO3- concentrations by using the artificial N-15 gas flux method in combination with a global meta-analysis of 458 observations to illustrate the interactive effects of soil pH and NO3- availability on N(2)Oi. Isotopic data indicated that pH adjustment through liming significantly and nonlinearly reduced N(2)Oi and increased cumulative N-2 emissions. Liming decreased cumulative N2O emissions by approximately threefold in low NO3- treatments (p < 0.01), while at high NO3- treatments liming showed no effect. The meta-analysis revealed a logarithmic relationship between N(2)Oi and increasing soil NO3- concentrations across different soil pH levels, indicating a threshold-like effect of NO3- concentrations on the reduction of N2O during denitrification. The threshold NO3- concentration tends to raise with increasing soil pH. Hence, there were significant interaction effects of soil pH and soil NO3- concentration on the N(2)Oi value. The present study emphasizes the need to consider soil pH and NO3- concentration interaction effects on denitrification for proposing the effective mitigation practices of denitrification-derived soil N2O emissions.
分类号：
- 相关文献
作者其他论文 更多>>
-
Community assembly of organisms regulates soil microbial functional potential through dual mechanisms
作者：Zhu, Lingyue;Luan, Lu;Chen, Yan;Wang, Xiaoyue;Zhang, Jiabao;Jiang, Yuji;Sun, Bo;Zhu, Lingyue;Zhou, Shungui;Zou, Wenxiu;Han, Xiaori;Duan, Yinghua;Zhu, Bo;Li, Yan;Liu, Wenzhao;Liu, Wenzhao;Zhou, Jizhong;Zhang, Jiabao;Jiang, Yuji
关键词：balanced fertilization; deterministic and stochastic processes; environmental factors; functional genes; nutrient stoichiometry; organism groups
-
Improving Genomic Predictions in Multi-Breed Cattle Populations: A Comparative Analysis of BayesR and GBLUP Models
作者：Ma, Haoran;Li, Hongwei;Ge, Fei;Zhu, Bo;Zhang, Lupei;Gao, Huijiang;Xu, Lingyang;Li, Junya;Wang, Zezhao;Li, Hongwei;Zhao, Huqiong
关键词：genomic prediction; multi-breed prediction; weighted G-matrix; BayesR; prediction accuracy
-
Irrigation and nitrogen fertiliser optimisation in protected vegetable fields of northern China: Achieving environmental and agronomic sustainability
作者：Fan, Bingqian;Li, Jungai;Wang, Hongyuan;Zhai, Limei;Lei, Qiuliang;Wu, Shuxia;Liu, Hongbin;Zhang, Yitao;Fenton, Owen;Daly, Karen;Luo, Xiaosheng
关键词：agriculture; water quality; nitrate; groundwater; irrigation management
-
Comparative transcriptome analysis reveals transcriptional regulation of anthocyanin biosynthesis in purple radish (Raphanus sativus L.)
作者：Liu, Yi;Wang, Chenchen;Chen, Haidong;Dai, Guoqiang;Cuimu, Qiushi;Shen, Wenjie;Gao, Liwei;Zhu, Bo;Chen, Daozong;Tan, Chen;Gao, Changbin;Zhang, Xueli;Chen, Lunlin
关键词：Radish; Anthocyanin; Transcriptome; DFR; PAP1
-
Long-term responses of internal environment dynamics in a freshwater lake to variations in external nutrient inputs: A model simulation approach
作者：Chen, Meijun;de Klein, Jeroen;Chen, Meijun;Du, Xinzhong;Lei, Qiuliang;Liu, Hongbin;Chen, Meijun;Janssen, Annette B. G.;Kroeze, Carolien;Li, Xiaolin
关键词：Lake Erhai; Eutrophication; Equilibrium; Water management; PCLake plus
-
Legacy effect of long-term rice-crab co-culture on N2O emissions in paddy soils
作者：Li, Weijing;Zhang, Yibin;Wang, Hongyuan;Fan, Bingqian;Bashir, Muhammad Amjad;Liu, Hongbin;Li, Weijing;Jin, Ke
关键词：Rice; Rice-crab co-culture; Soil fertility; Microbial community; N2O
-
Non-linear effects of temperature and moisture on gross N transformation rates in an Inner Mongolian grassland
作者：Chen, Jiale;Shi, Yalong;Wu, Honghui;Dannenmann, Michael;Butterbach-Bahl, Klaus;Yu, Qiang;Wallenstein, Matthew D.;Han, Xinguo
关键词：Climate change; Gross ammonification; Gross nitrification; N cycling; Precipitation steppe
