气候变化领域集成服务门户(CCPortal): The assembly mechanisms of algal community across different habitats mediated by sediment in the heavily sediment-laden Yellow River

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DOI	10.1016/j.jhydrol.2024.130825
	The assembly mechanisms of algal community across different habitats mediated by sediment in the heavily sediment-laden Yellow River
	Han, Xu; Pan, Baozhu; Jin, Xiaowei; Li, Ming; Ding, Yitong; Liu, Xinyuan
发表日期	2024
ISSN	0022-1694
EISSN	1879-2707
起始页码	631
卷号	631
英文摘要	Suspended sediment particles in river water exert dual effects on algal growth depending on concentration. However, the diversity patterns in riverine algal communities across different habitats are insufficiently explored at different sediment concentrations. To ascertain the environmental factors shaping distinct algal communities, we collected water and sediment samples from 44 sections along the mainstream of the Yellow River, a continent-scale river with heavy sediment loads in China. The community composition and assembly dynamics of free-living, particle-attached, and surfacial-sediment algae were assessed using high-throughput sequencing targeting the V4 region of the 23S ribosomal ribonucleic acid genes. The findings reveal a noteworthy resemblance between the communities of free-living (FL) and particle-attached (PA) algae, while the surfacialsediment (SS) algae community exhibits significant dissimilarities. Sediment concentration emerges as a critical factor influencing the mechanisms of algal community assembly, with homogeneous selection exerting a more prominent influence in habitats rich in sediment. Conversely, the role of dispersal limitation diminishes under such conditions. Moreover, the presence of small-sized suspended sediments enhances the adsorption of algae, resulting in reduced community variability across various habitats. The composition of algal communities is primarily shaped by water quality, with additional indirect influences from elevation and land use. Notably, the high sediment loads in the Yellow River counteract the positive impact of nutrients, thereby imposing limitations on algal growth within this ecosystem.
英文关键词	Algae; Biogeography; Community assembly mechanisms; Sediment load; Yellow River
语种	英语
WOS研究方向	Engineering ; Geology ; Water Resources
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:001179408400001
来源期刊	JOURNAL OF HYDROLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298424
作者单位	Xi'an University of Technology; Northwest A&F University - China
推荐引用方式 GB/T 7714	Han, Xu,Pan, Baozhu,Jin, Xiaowei,et al. The assembly mechanisms of algal community across different habitats mediated by sediment in the heavily sediment-laden Yellow River[J],2024,631.
APA	Han, Xu,Pan, Baozhu,Jin, Xiaowei,Li, Ming,Ding, Yitong,&Liu, Xinyuan.(2024).The assembly mechanisms of algal community across different habitats mediated by sediment in the heavily sediment-laden Yellow River.JOURNAL OF HYDROLOGY,631.
MLA	Han, Xu,et al."The assembly mechanisms of algal community across different habitats mediated by sediment in the heavily sediment-laden Yellow River".JOURNAL OF HYDROLOGY 631(2024).