nosZ II/nosZ I ratio regulates the N2O reduction rates in the eutrophic lake sediments

The Science of The Total Environment, Год журнала: 2024, Номер 951, С. 175852 - 175852

Опубликована: Авг. 28, 2024

Язык: Английский

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Shifts of abundance and community composition of nitrifying microbes along the Changjiang Estuary to the East China Sea

World Journal of Microbiology and Biotechnology, Год журнала: 2025, Номер 41(2)

Опубликована: Янв. 20, 2025

Язык: Английский

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Hydrological connectivity shape the nitrogen pollution sources and microbial community structure in a river-lake connected system

Frontiers in Microbiology, Год журнала: 2025, Номер 16

Опубликована: Апрель 11, 2025

Intensified agricultural and urban activities have exacerbated nitrogen pollution, posing a severe threat to freshwater ecosystems, particularly under intensified urbanization activities. This study systematically examined Baiyangdian Lake (BYD) its principal inflowing rivers, namely Fu River (FH), Baigouyin (BGY), Xiaoyi (XY) characterize the spatio-temporal distribution, primary sources, impact on sediment microbial community structure. Results indicated pronounced seasonal variations in both pollution loads with riverine levels rising markedly from dry season (May) wet (August). Atmospheric deposition accounted for 43.9% of input season, whereas fertilizers sewage contributed 23.3 26.4%, respectively. Additionally, communities exhibited distinct temporal spatial patterns, significantly higher diversity species richness being during season. The, composition shifted, as evidenced by decline Proteobacteria increases Firmicutes Actinobacteriota . River-lake connectivity emerged critical factor, FH displaying notably index compared BGY XY rivers. Structural equation modeling (SEM) analysis further revealed that river-lake was positively correlated negatively α-diversity. These findings demonstrated directly influenced concentrations, which turn indirectly modulated diversity.

Язык: Английский

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Anammox sludge granulation and synergy with comammox: A critical review

Journal of environmental chemical engineering, Год журнала: 2024, Номер unknown, С. 115300 - 115300

Опубликована: Дек. 1, 2024

Язык: Английский

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