Nitrogen Enrichment Reduces Soil Bacterial Diversity and Alters Bacterial Composition in a Seasonal Manner Within the Tidal Marsh of the Yellow River Delta, China
文献类型：期刊论文
| 作者 | Zhang, Liwen1; Zhao, Lianjun2,3 |
| 刊名 | ESTUARIES AND COASTS
 |
| 出版日期 | 2025-07-24 |
| 卷号 | 48期号:6页码:19 |
| 关键词 | Nitrogen addition Coastal wetland Bacterial diversity Bacterial composition Tidal marsh Yellow River Delta |
| ISSN号 | 1559-2723 |
| DOI | 10.1007/s12237-025-01580-7 |
| 通讯作者 | Zhang, Liwen(lwzhang@tjnu.edu.cn) |
| 英文摘要 | Since the Industrial Revolution, anthropogenic activities have significantly increased substantial nitrogen inputs into natural ecosystems, drawing considerable attention to the responses of ecosystem components to these changes. However, although a large number of studies have focused on the impact of nitrogen input on soil bacterial communities in terrestrial ecosystems, the impact on the diversity and composition of soil bacteria in coastal wetlands remains unclear. We conducted a field experiment in 2017 in a tidal marsh of the Yellow River Delta, with nitrogen addition treatments at four levels: 0 g center dot m-2 center dot year-1 (N0), 5 g center dot m-2 center dot year-1 (N1), 20 g center dot m-2 center dot year-1 (N2), and 50 g center dot m-2 center dot year-1 (N3). Urea [CO(NH2)2, containing 46% nitrogen] was uniformly applied to the experimental plots in May and July. Soil samples were collected in May and September 2018 for analysis of soil physical and chemical properties as well as soil bacterial composition. Our study demonstrated that, in both May and September samples, nitrogen treatment consistently led to a significant reduction in bacterial diversity across all taxonomic levels, ranging from phylum to species. Furthermore, seasonal fluctuations in the types and quantities of soil available nitrogen were found to substantially influence soil bacterial composition under the influence of nitrogen inputs. The phyla with the highest relative abundance were Proteobacteria, Bacteroidetes, Firmicutes, Actinobacteria, Cyanobacteria, Chloroflexi, Acidobacteria, Planctomycetes, Deinococcus-Thermus, and Gemmatimonadetes. Soil physical and chemical factors, particularly electrical conductivity, soil total carbon content, ammonium (NH-N) content, and nitrate (NO-N) content, significantly influenced bacterial composition in both May and September. Specifically, NH-N content was the most influential factor on bacterial composition in May, whereas NO-N content played a pivotal role in shaping bacterial composition in September. Therefore, nutrient availability is one of the important factors affecting the diversity and composition of bacteria in tidal marsh of the Yellow River Delta. |
| WOS关键词 | MICROBIAL COMMUNITIES ; DIFFERENTIAL RESPONSES ; CONSERVATION ; PRODUCTIVITY ; MECHANISMS ; SALINITY ; WETLAND ; NUMBER ; GROWTH ; FOREST |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:001534737100001 |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Introduction of Talent Research Support Program of Tianjin Normal University |
| 源URL | [http://ir.yic.ac.cn/handle/133337/41274]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Zhang, Liwen |
| 作者单位 | 1.Tianjin Normal Univ, Coll Life Sci, Tianjin Key Lab Conservat & Utilizat Anim Divers, Tianjin 300387, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,YICCAS, Yantai 264003, Shandong, Peoples R China 3.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Liwen,Zhao, Lianjun. Nitrogen Enrichment Reduces Soil Bacterial Diversity and Alters Bacterial Composition in a Seasonal Manner Within the Tidal Marsh of the Yellow River Delta, China[J]. ESTUARIES AND COASTS,2025,48(6):19. |
| APA | Zhang, Liwen,&Zhao, Lianjun.(2025).Nitrogen Enrichment Reduces Soil Bacterial Diversity and Alters Bacterial Composition in a Seasonal Manner Within the Tidal Marsh of the Yellow River Delta, China.ESTUARIES AND COASTS,48(6),19. |
| MLA | Zhang, Liwen,et al."Nitrogen Enrichment Reduces Soil Bacterial Diversity and Alters Bacterial Composition in a Seasonal Manner Within the Tidal Marsh of the Yellow River Delta, China".ESTUARIES AND COASTS 48.6(2025):19. |
入库方式： OAI收割
来源：烟台海岸带研究所
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