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
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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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