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Effects of simulated nitrogen deposition on soil microbial community diversity in coastal wetland of the Yellow River Delta

文献类型：期刊论文

作者Lu, Guanru1; Xie, Baohua1; Han, Guangxuan1; Wang, Xiaojie1; Guan, Bo1; Cagle, Grace A.2; Hou, Aixin2; Wang, Xuehong3
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2021-02-25
卷号757页码:143825
关键词Nitrogen deposition Soil microbial diversity Salt content Bacillus The Yellow River Delta
ISSN号0048-9697
DOI10.1016/j.scitotenv.2020.143825
英文摘要Due to the enhancement of human activities on the global scale, the total amount of atmospheric nitrogen (N) deposition and the rate keep increasing, which seriously affect the structure and function of terrestrial ecosystems. In order to study the effects of N deposition on the soil structure and function of coastal saline wetlands, we established a long-term nitrogen deposition simulation platform in 2012 in the Yellow River delta (YRD). Herein, we analyzed the composition and diversity of the soil microbial community under different N deposition treatments (LNN, MNN and HNN, which stand for 50 kg N ha(-1) yr(-1), 100 kg N ha(-1) yr(-1), and 200 kg N ha(-1) yr(-1)) and in a water-only control (CK). The results showed that with the increasing level of N deposition, alpha-diversity (Shannon and Simpson indices) decreased significantly, and the composition of the microbial community changed. At the phylum level, compared with CK, the relative abundance of Chlorollexi increased significantly under the treatment of HNN (P = 0.002), but the relative abundance of Chlorobi (P = 0.013) and Verrucomicrobia (P = 0.035) decreased significantly. At the genus level, compared with CK, the relative abundance of Bacillus (P = 0.01) and Halomonas (P =- 0.042) increased significantly with HNN treatment. Bacillus and Niirococcus showed a significant correlation with soil NH4--N. The results suggest that the response of microorganisms to N deposition treatments varied by the concentration, and the deposition of a high concentration would increase the nutrients in the soil, but reduce the diversity of soil microorganisms, causing a negative impact on the coastal wetland ecosystem of the YRD. (C) 2020 Elsevier B.V. All rights reserved.
WOS关键词TERM FERTILIZATION ; MYCORRHIZAL FUNGI ; BACTERIUM ; CYCLE ; RESPIRATION ; DEPENDENCE ; HARDWOOD ; BIOMASS ; FOREST
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000604432900090
资助机构National Key Research and Development Program of China [2017YFC0505901] ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDA23050202] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [U1806218, 41871091] ; Yellow River Delta Ecology Research Station of Coastal Wetland, Chinese Academy of Sciences
源URL[http://ir.yic.ac.cn/handle/133337/30515]  
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
烟台海岸带研究所_近岸生态与环境实验室
作者单位1.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, Peoples R China;
2.Louisiana State Univ, Coll Coast & Environm, Dept Environm Sci, Baton Rouge, LA 70803 USA;
3.Ludong Univ, Inst Adv Study Coastal Ecol, Yantai 264025, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Guanru,Xie, Baohua,Han, Guangxuan,et al. Effects of simulated nitrogen deposition on soil microbial community diversity in coastal wetland of the Yellow River Delta[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,757:143825.
APA Lu, Guanru.,Xie, Baohua.,Han, Guangxuan.,Wang, Xiaojie.,Guan, Bo.,...&Wang, Xuehong.(2021).Effects of simulated nitrogen deposition on soil microbial community diversity in coastal wetland of the Yellow River Delta.SCIENCE OF THE TOTAL ENVIRONMENT,757,143825.
MLA Lu, Guanru,et al."Effects of simulated nitrogen deposition on soil microbial community diversity in coastal wetland of the Yellow River Delta".SCIENCE OF THE TOTAL ENVIRONMENT 757(2021):143825.

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来源：烟台海岸带研究所

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