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Global warming potential assessment under reclaimed water and livestock wastewater irrigation coupled with co-application of inhibitors and biochar

文献类型： 外文期刊

作者： Tao, Zhen 1 ; Liu, Yuan 1 ; Li, Siyi 1 ; Li, Baogui 1 ; Fan, Xiangyang 1 ; Liu, Chuncheng 1 ; Hu, Chao 1 ; Liu, Hongen 4 ; Li, Zhongyang 1 ;

作者机构： 1.CAAS, Agr Water & Soil Environm Field Sci Observat Res S, Inst Farmland Irrigat, Xinxiang 453002, Peoples R China

2.China Agr Univ, Coll Land Sci & Technol, Beijing 100193, Peoples R China

3.Natl Res & Observat Stn Shangqiu Agroecol Syst, Shangqiu 476000, Peoples R China

4.Henan Agr Univ, Resources & Environm Coll, Zhengzhou 450002, Peoples R China

5.CAAS, Inst Farmland Irrigat, Xinxiang 453002, Peoples R China

关键词： Livestock wastewater irrigation; Nitrification inhibitor; Urease inhibitor; Biochar; Global warming potential

期刊名称：JOURNAL OF ENVIRONMENTAL MANAGEMENT （ 影响因子：8.7； 五年影响因子：8.4 ）

ISSN： 0301-4797

年卷期： 2024 年 353 卷

页码：

收录情况： SCI

摘要： The application of nitrification inhibitors (nitrapyrin) and urease inhibitors (N-(N-butyl) thiophosphoric triamide) under conventional water resources has been considered as an effective means to improve nitrogen utilization efficiency and mitigate soil greenhouse gas emissions. However, it is not known whether the inhibitors still have an inhibitory effect under unconventional water resources (reclaimed water and livestock wastewater) irrigation and whether their use in combination with biochar improves the mitigation effect. Therefore, unconventional water resources were used for irrigation, with groundwater (GW) control. Nitrapyrin and N-(Nbutyl) thiophosphoric triamide were used alone or in combination with biochar in a pot experiment, and CO2, N2O, and CH4 emissions were measured. The results showed that irrigation of unconventional water resources exacerbated global warming potential (GWP). All exogenous substance treatments increased CO2 and CH4 emissions and suppressed N2O emissions, independent of the type of water, compared to no substances (NS). The inhibitors were ineffective in reducing the GWP whether or not in combination with biochar, and the combined application of inhibitors with biochar further increased the GWP. This study suggests that using inhibitors and biochar in combination to regulate the greenhouse effect under unconventional water resources irrigation should be done with caution.

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