干旱区生态环境知识资源中心(Arid): The influence of soil salinization, induced by the backwater effect of the Yellow River, on microbial community dynamics and ecosystem functioning in arid regions

Arid

DOI	10.1016/j.envres.2024.119854
	The influence of soil salinization, induced by the backwater effect of the Yellow River, on microbial community dynamics and ecosystem functioning in arid regions
	He, Mengyuan; Shen, Cong; Peng, Shuang; Wang, Yuanduo; Sun, Jianbin; Zhang, Junhua; Wang, Yiming
通讯作者	Zhang, JH
来源期刊	ENVIRONMENTAL RESEARCH
ISSN	0013-9351
EISSN	1096-0953
出版年	2024
卷号	262
英文摘要	Irrigation practices and groundwater levels are critical factors contributing to soil salinization in arid and semiarid regions. However, the impact of soil salinization resulting from Yellow River water irrigation and recharge on microbial communities and their functions in the Huinong District has not been thoroughly documented. In this study, high-throughput sequencing technology was employed to analyze the diversity, composition, and structure of bacterial and fungal communities across a gradient of salinized soils. The results indicated that the alpha diversity of bacterial communities was significantly higher in slightly saline soils compared to highly saline soils. Soil salinization notably influenced the composition of both bacterial and fungal communities. Highly salinized soils were enriched with bacterial taxa such as Halomonas, Salinimicrobium, Pseudomonas, Solibacillus, and Kocuria, as well as fungal taxa including Emericellopsis, Alternaria, and Podospora. In these highly saline soils, bacterial taxa associated with iron respiration, sulfur respiration, and hydrocarbon degradation were more prevalent, whereas fungal taxa linked to functions such as soil animal pathogens, arbuscular mycorrhizal symbiosis, endophytes, dung saprotrophy, leaf saprotrophy, soil saprotrophy, fungal parasitism, and plant pathogenicity were less abundant. Random forest analysis identified nine bacterial and eighteen fungal taxa as potential biomarkers for salinity discrimination in saline soils. Symbiotic network analysis further revealed that soil salinization pressure reduced the overall complexity and stability of bacterial and fungal communities. Additionally, bacterial community assembly showed a tendency shift from stochastic to deterministic processes in response to increasing salinity, while fungal community assembly remained dominated by deterministic processes. provide robust evidence that soil salinity is a major inhibitor of soil biogeochemical processes in the Huinong District and plays a critical role in shaping bacterial and fungal communities, their symbiotic networks, and their assembly processes.
英文关键词	Soil salinization Microbial community Diversity Co-occurrence network Community assembly
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001304907700001
WOS关键词	BACTERIAL ; DIVERSITY
WOS类目	Environmental Sciences ; Public, Environmental & Occupational Health
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403630
推荐引用方式 GB/T 7714	He, Mengyuan,Shen, Cong,Peng, Shuang,et al. The influence of soil salinization, induced by the backwater effect of the Yellow River, on microbial community dynamics and ecosystem functioning in arid regions[J],2024,262.
APA	He, Mengyuan.,Shen, Cong.,Peng, Shuang.,Wang, Yuanduo.,Sun, Jianbin.,...&Wang, Yiming.(2024).The influence of soil salinization, induced by the backwater effect of the Yellow River, on microbial community dynamics and ecosystem functioning in arid regions.ENVIRONMENTAL RESEARCH,262.
MLA	He, Mengyuan,et al."The influence of soil salinization, induced by the backwater effect of the Yellow River, on microbial community dynamics and ecosystem functioning in arid regions".ENVIRONMENTAL RESEARCH 262(2024).