文献类型： 外文期刊
作者： Shaaban, Muhammad 1 ; Hu, Ronggui 2 ; Wu, Yupeng 2 ; Younas, Aneela 3 ; Xu, Xiangyu 2 ; Sun, Zheng 2 ; Jiang, Yanbin 2 ;
作者机构： 1.Bahauddin Zakariya Univ, Fac Agr Sci & Technol, Dept Soil Sci, Multan, Pakistan
2.Huazhong Agr Univ, Coll Resources & Environm, Wuhan, Hubei, Peoples R China
3.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan, Hubei, Peoples R China
4.Hubei Acad Agr Sci, Inst Plant Protect & Soil Fertilizer, Wuhan 430064, Hubei, Peoples R China
关键词： Cow urine; Soil pH; N transformation; Mitigation strategy; Liming
期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：8.071； 五年影响因子：8.35 ）
ISSN： 0269-7491
年卷期： 2019 年 255 卷
页码：
收录情况： SCI
摘要： Nitrous oxide (N2O) is a devastating greenhouse gas mainly released from soils to the atmosphere. Pasture soils, particularly acidic in nature, are large contributors of atmospheric N2O through deposition of urine-N. Devising strategies for reducing N2O emissions in acidic soils are the utmost need of the time. Therefore, the present study was carried out to investigate the possible efficacy of dolomite application to reduce N2O emissions from urine treated acidic soil. Application of urine to soil enlarged the production of NH4+-N, NO3--N, microbial biomass C (MBC) and dissolved organic C (DOC), resulting in higher N2O emissions as compared to the control (soil only). The highest N2O emission rate (1.35 mu g N2O-N kg(-1) h(-1)) and cumulative flux (408 mu g N2O-N kg(-1)) occurred in urine only treated soil. Dolomite addition, especially higher application dose, greatly reduced N2O emissions through improved soil pH. The results suggest that increasing pH of acidic soils is a good applicable approach for reducing N2O emissions from urine-treated soils. (C) 2019 Elsevier Ltd. All rights reserved.
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