[1]舒同,周贝贝,段婧婧,等.添加秸秆碳源对沟渠水体中氮素去除及温室气体排放的影响[J].江苏农业学报,2023,(01):81-87.[doi:doi:10.3969/j.issn.1000-4440.2023.01.010]
　SHU Tong,ZHOU Bei-bei,DUAN Jing-jing,et al.Changes of nitrogen removal and greenhouse gas emission in ditch water with straw carbon source[J].,2023,(01):81-87.[doi:doi:10.3969/j.issn.1000-4440.2023.01.010]
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添加秸秆碳源对沟渠水体中氮素去除及温室气体排放的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2023年01期
页码:
81-87
栏目:
耕作栽培·资源环境
出版日期:
2023-02-28

文章信息/Info

Title:
Changes of nitrogen removal and greenhouse gas emission in ditch water with straw carbon source
作者:
舒同1; 2; 周贝贝3; 段婧婧1; 2; 马如龙1; 薛利祥1; 何世颖1; 2; 薛利红1; 2; 杨林章1
（1.江苏省农业科学院农业资源与环境研究所，江苏南京210014；2.江苏大学环境与安全工程学院，江苏镇江212013；3.江苏开放大学环境生态学院，江苏南京210017）
Author(s):
SHU Tong1; 2; ZHOU Bei-bei3; DUAN Jing-jing1; 2; MA Ru-long1; XUE Li-xiang1; HE Shi-ying1; 2; XUE Li-hong1; 2; YANG Lin-zhang1
(1.Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China；2.School of Environmental and Safety Engineering, Jiangsu University, Zhenjiang 212013, China；3.College of Environment and Ecology, Jiangsu Open University, Nanjing 210017, China)
关键词:
秸秆; 碳源; 农业面源污染; 氮素; 温室气体
Keywords:
straw; carbon source; agricultural non-point source pollution; nitrogen; greenhouse gas
分类号:
X522
DOI:
doi:10.3969/j.issn.1000-4440.2023.01.010
文献标志码:
A
摘要:
为探究夏季添加纤维素类固体有机碳源（秸秆）对沟渠水体中氮素去除效果及温室气体排放的影响，在试验期内设定密集采样法代替常规采样法探究水体中氮质量浓度的变化，并通过静态箱-气相色谱法测定温室气体排放通量。结果表明，试验期间总氮（TN）质量浓度下降了35.9%，硝态氮（NO-3-N）去除率高达97.6%；温室气体排放较为稳定，氧化亚氮（N2O）排放通量呈现昼高夜低的趋势，甲烷（CH4）排放通量出现多个峰值。整体来看，添加秸秆增强了水体中氮素的去除效果，同时矫正系数分析结果表明，试验初期温室气体排放通量变化较大，而在后期较稳定。因此，建议试验前期密集采样，后期可常规采样，后期最佳采样时间为9：00-11：00。
Abstract:
In order to explore the nitrogen removal effect and greenhouse gas emission law in ditch water under the addition of cellulose solid organic carbon source (straw) in summer, dense sampling was set to replace the conventional sampling method to explore the change of nitrogen mass concentration in water during the experimental period, and the greenhouse gas emission flux was measured by static box gas chromatography. The results showed that the mass concentration of total nitrogen (TN) decreased by 35.9%, and the removal rate of nitrate nitrogen (NO-3- N) was as high as 97.6%. Greenhouse gas emissions were relatively stable, nitrous oxide (N2O) emission flux showed a trend of high in the day and low at night, and methane (CH4) emission flux showed multiple peaks. In conclusion, the addition of straw enhanced the removal efficiency of nitrogen in water. At the same time, the results of correction coefficient analysis indicated that the greenhouse gas emission flux changed greatly in the early stage of the experiment and was relatively stable in the later stage. Therefore, it is suggested that intensive sampling should be carried out in the early stage, conventional sampling can be carried out in the later stage, and the best sampling time in the later stage is 9:00-11:00.

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备注/Memo

备注/Memo:
收稿日期：2022-03-28基金项目：国家重点研发计划项目（2021YFD1700803）；江苏省农业科技自主创新基金项目[CX(19)1007]作者简介：舒同（1997-），男，陕西西安人，硕士研究生，从事农村低污染水生态化处理研究。(E-mail)chdjaas_st@163.com通讯作者：周贝贝，(E-mail)zhou_bae@163.com；段婧婧，(E-mail)duanjingjing_23@163.com
更新日期/Last Update: 2023-03-21