Spatiotemporal heterogeneity of nitrogen transformation potentials in a freshwater estuarine system
文献类型：期刊论文
| 作者 | Lu, Jiali1,2,3,5,6; Wang, Shiqin1,4; Liu, Binbin1,4; Song, Xianfang2,3,5 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-02-10 |
| 卷号 | 859页码:12 |
| 关键词 | Nitrogen Metagenome sequencing technology 16S rRNA high -throughput sequencing technol ogy bacteria Functional gene composition Water diversion |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2022.160335 |
| 通讯作者 | Wang, Shiqin(sqwang@sjziam.ac.cn) |
| 英文摘要 | Under the influence of water diversion, the microbial community composition of estuarine waters and sediments might have complex spatiotemporal variations. Microbial interactions with N are significant for lake water quality. Therefore, the largest lake receiving seasonal water diversion in the North China Plain was selected as the study area. Based on 16S rRNA high-throughput sequencing and metagenomic sequencing techniques, this study analysed temporal (June-December) and spatial (estuary-pelagic zone) changes in the microbial community and functional gene composition of water and sediment. The results showed that the water microbial community composition had temporality, while sediment microbes had spatiality. The main causes of temporality in the aquatic microbial community were temperature and nitrate-N concentration, while those of sediment were flow velocity and N content. Additionally, there were complex interactions between microbial communities and N. In water, temporal variation in the relative abundance of N-related functional genes might have indirectly contributed to inorganic N composition in June (nitrite-N> ammonia-N> nitrate-N) and August (nitrite-N> nitrate-N> ammonia-N). High nitrate-N concentrations in December influenced the microbial community composition. In sediment, the estuary had higher N functional genes than the pelagic estuary, creating a relatively active N cycle and reducing total N levels in the estuary. This study revealed a potentially overlooked N sink and a flow velocity threshold that has great impacts on microbial community composition. This research contributes to a deeper understanding of the estuarine N cycle under the influence of water diversions, with implications for the calculation of global N balances and the management of lake water environments. |
| WOS关键词 | PHYTOPLANKTON FUNCTIONAL-GROUPS ; BACTERIAL COMMUNITY ; SEDIMENT RESUSPENSION ; N2O EMISSIONS ; RIVER ESTUARY ; LAKE ; NUTRIENT ; FLOW ; EUTROPHICATION ; TEMPERATURE |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000898822600011 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/189002]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Shiqin |
| 作者单位 | 1.Chinese Acad Sci, Ctr Agr Resources Res, Inst Genet & Dev Biol, Key Lab Agr Water Resources, Shijiazhuang 050021, Peoples R China 2.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 101408, Peoples R China 3.Sino Danish Ctr Educ & Res, Beijing 101408, Peoples R China 4.Chinese Acad Sci, Xiongan Inst Innovat, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nauru Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 6.Univ Copenhagen, Dept Plant & Environm Sci, DK-999017 Copenhagen, Denmark |
| 推荐引用方式 GB/T 7714 | Lu, Jiali,Wang, Shiqin,Liu, Binbin,et al. Spatiotemporal heterogeneity of nitrogen transformation potentials in a freshwater estuarine system[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,859:12. |
| APA | Lu, Jiali,Wang, Shiqin,Liu, Binbin,&Song, Xianfang.(2023).Spatiotemporal heterogeneity of nitrogen transformation potentials in a freshwater estuarine system.SCIENCE OF THE TOTAL ENVIRONMENT,859,12. |
| MLA | Lu, Jiali,et al."Spatiotemporal heterogeneity of nitrogen transformation potentials in a freshwater estuarine system".SCIENCE OF THE TOTAL ENVIRONMENT 859(2023):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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