中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Linking nitrous oxide emissions from starch wastewater digestate amended soil to the abundance and structure of denitrifier communities

文献类型:期刊论文

作者Zhou, Sining; Xu, Zhe; Zeng, Xiangui; Bai, Zhihui; Xu, Shengming; Jiang, Cancan; Xu, Shengjun
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2020-06-20
卷号722页码:1-3
关键词Digested starch wastewater Soil property N2O emission Denitrification functional gene Denitrifier community
ISSN号0048-9697
英文摘要Anaerobic digestion is widely used in starch wastewater pre-treatment and can remove the COD effectively, however, the effluents are nutritious and often need supplemental aerobic treatments to remove nutrients prior to discharge. The objective of this study was to investigate the feasibility of using the liquid digestate of starch wastewater (LDSW) as a fertilizer. This pot experiment was conducted with Ipomoea aquatica Forsk in a greenhouse with six treatment groups. The crop growth was significantly promoted, while the accumulation of soil nitrate was not influenced after LDSW addition, compared to the control. In addition, at the same nitrogen input, the yield of high-LDSW treatment was 65.2%, 92.3% and 69.2% higher than those of chemical fertilizer treatment during the three growth periods. Furthermore, average N2O emission with high-LDSW addition was 15.8 g N/(ha.d), accounting for 15.0% of which under high chemical fertilizer treatment, due to the significantly enhanced denitrification genes (nirK, nirS and nosZ) abundance. Besides, the changes of soil N2O-reducing bacteria were performed by high-throughput sequencing of nosZ. Our findings suggested that LDSW had many opportunities for sustainable agriculture to guarantee high yields while reducing negative environmental impacts. (C) 2020 Elsevier B.V. All rights reserved.
源URL[http://ir.rcees.ac.cn/handle/311016/45179]  
专题生态环境研究中心_中国科学院环境生物技术重点实验室
推荐引用方式
GB/T 7714
Zhou, Sining,Xu, Zhe,Zeng, Xiangui,et al. Linking nitrous oxide emissions from starch wastewater digestate amended soil to the abundance and structure of denitrifier communities[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,722:1-3.
APA Zhou, Sining.,Xu, Zhe.,Zeng, Xiangui.,Bai, Zhihui.,Xu, Shengming.,...&Xu, Shengjun.(2020).Linking nitrous oxide emissions from starch wastewater digestate amended soil to the abundance and structure of denitrifier communities.SCIENCE OF THE TOTAL ENVIRONMENT,722,1-3.
MLA Zhou, Sining,et al."Linking nitrous oxide emissions from starch wastewater digestate amended soil to the abundance and structure of denitrifier communities".SCIENCE OF THE TOTAL ENVIRONMENT 722(2020):1-3.

入库方式: OAI收割

来源:生态环境研究中心

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