Impacts of N2O Oversaturated Sewage Effluents on the Spatial Distribution of Riverine N2O: Insights from Sanya Estuaries, Hainan Province DOI Open Access
Dajun Qin, Jing Geng, Bingnan Ren

и другие.

Water, Год журнала: 2024, Номер 16(24), С. 3685 - 3685

Опубликована: Дек. 20, 2024

Rivers and estuaries are recognized as significant sources of atmospheric greenhouse gas nitrous oxide (N2O), primarily through diffusive pathways. Anthropogenic nitrogen contributions to surface water bodies can alter the baseline emissions from natural sources; however, due high spatial variability limited datasets, specific sinks contributing N2O remain poorly understood. This study investigates (N2O) in river systems located Sanya, Hainan Province, China. In April 2023, we collected 48 samples seawater, measuring hydrochemical parameters situ while analyzing concentrations laboratory. The results indicate that vary significantly across different within Sanya. Specifically, ranged 0.33 307.18 nmol/L for Sanya River, 2.28 3113.46 Damaoshui 5.72 122.75 Tengqiao River waters, between 11.08 18.07 Ningyuan waters; coastal seawater exhibited ranging 2.42 21.96 nmol/L. Notably, observed riverine levels near sewage discharge points were oversaturated—indicating a peak concentration—which subsequently declined towards more consistent with those found one approaches mouths estuaries. Both appear be N2O; conversely, is not considered substantial source. Our data suggest wastewater discharges may play critical role influencing waters by directly introducing oversaturated effluents into these ecosystems.

Язык: Английский

Water periods impact the structure and metabolic potential of the nitrogen-cycling microbial communities in rivers of arid and semi-arid regions DOI
Qingqing Pang, Guohua Zhao,

Dan Wang

и другие.

Water Research, Год журнала: 2024, Номер 267, С. 122472 - 122472

Опубликована: Сен. 17, 2024

Язык: Английский

Процитировано

8

Field-scale artificial floating islands reduces cyanotoxin from residential raw sewage treatment basin DOI Creative Commons
Zhaozhe Chen, Jiyoung Lee, Molly Mills

и другие.

Ecological Engineering, Год журнала: 2025, Номер 212, С. 107543 - 107543

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

1

Nitrous oxide emissions from rivers in agricultural area under different rainfall scenarios: the effect of typhoons in intensifying the release DOI
Zhao Li, Qiuying Zhang,

Kun Du

и другие.

Environmental Pollution, Год журнала: 2025, Номер unknown, С. 126449 - 126449

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0

N2O Emissions from Aquatic Ecosystems: A Review DOI Creative Commons

Huixiao Pan,

Zheyan Zhou,

Shiyu Zhang

и другие.

Atmosphere, Год журнала: 2023, Номер 14(8), С. 1291 - 1291

Опубликована: Авг. 15, 2023

Emissions of nitrous oxide (N2O) from aquatic ecosystems are on the rise due to dramatic increase in global reactive nitrogen input by anthropogenic activities (e.g., agricultural fertilizer use). However, uncertainties exist estimation N2O budgets limited knowledge mechanisms involved emissions, as well flux measurements and modelling. To give a full picture this review discusses biotic abiotic common methods used (including field measurement formula simulation methods), alternatives for budget estimation. In addition, also suggests that stable isotope technology is promising application source partitioning.

Язык: Английский

Процитировано

8

Dual mechanism of membrane covering on GHG and NH3 mitigation during industrial-scale experiment on dairy manure composting: Inhibiting formation and blocking emissions DOI
Wenqian Xu,

Wenzan Wang,

Ruiqiang Ma

и другие.

Journal of Environmental Management, Год журнала: 2024, Номер 370, С. 122585 - 122585

Опубликована: Сен. 20, 2024

Язык: Английский

Процитировано

2

Response Characteristics and Community Assembly Mechanisms of nirS-Type Denitrifiers in the Alpine Wetland under Simulated Precipitation Conditions DOI Creative Commons
Ni Zhang,

Kelong Chen,

Ji Chen

и другие.

Biology, Год журнала: 2024, Номер 13(8), С. 596 - 596

Опубликована: Авг. 7, 2024

The nitrogen cycling process in alpine wetlands is profoundly affected by precipitation changes, yet the dynamic response mechanism of denitrifiers to long-term shifts wetland Qinghai-Tibet Plateau remains enigmatic. Utilizing high-throughput sequencing analysis nirS-type functional genes, this study delved into changes Qinghai Lake. findings revealed that Lake were primarily Proteobacteria, and Alpha diversity exhibited a negative correlation with gradient, deterministic processes predominating community assembly denitrifying microbes. A 50% increase rainfall shifted from stochastic. Dominant microflora at genus level responded significantly aerobic bacteria comprising majority differentially abundant taxa (55.56%). As increased, complexity microbial interaction network decreased, 25% reduction notably elevated relative abundance three key groups: chemoheterotrophic, fixation. Precipitation emerged as primary regulator Lake, accounting for 51% variation composition. In summary, offers fresh perspective investigating ecological ecosystems examining composition changes.

Язык: Английский

Процитировано

1

Field-Scale Application of Artificial Floating Islands for Cyanotoxin Reduction from Residential Raw Sewage Treatment Basin DOI
Zhaozhe Chen, Jiyoung Lee, Molly Mills

и другие.

Опубликована: Янв. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Язык: Английский

Процитировано

0

Assessing the impact of rainfall on water quality in a coastal urban river utilizing the environmental fluid dynamics code DOI

Qingqing Sun,

Suyun Chang,

Jingfu Wang

и другие.

Urban Climate, Год журнала: 2024, Номер 56, С. 102082 - 102082

Опубликована: Июль 1, 2024

Язык: Английский

Процитировано

0

Impacts of N2O Oversaturated Sewage Effluents on the Spatial Distribution of Riverine N2O: Insights from Sanya Estuaries, Hainan Province DOI Open Access
Dajun Qin, Jing Geng, Bingnan Ren

и другие.

Water, Год журнала: 2024, Номер 16(24), С. 3685 - 3685

Опубликована: Дек. 20, 2024

Rivers and estuaries are recognized as significant sources of atmospheric greenhouse gas nitrous oxide (N2O), primarily through diffusive pathways. Anthropogenic nitrogen contributions to surface water bodies can alter the baseline emissions from natural sources; however, due high spatial variability limited datasets, specific sinks contributing N2O remain poorly understood. This study investigates (N2O) in river systems located Sanya, Hainan Province, China. In April 2023, we collected 48 samples seawater, measuring hydrochemical parameters situ while analyzing concentrations laboratory. The results indicate that vary significantly across different within Sanya. Specifically, ranged 0.33 307.18 nmol/L for Sanya River, 2.28 3113.46 Damaoshui 5.72 122.75 Tengqiao River waters, between 11.08 18.07 Ningyuan waters; coastal seawater exhibited ranging 2.42 21.96 nmol/L. Notably, observed riverine levels near sewage discharge points were oversaturated—indicating a peak concentration—which subsequently declined towards more consistent with those found one approaches mouths estuaries. Both appear be N2O; conversely, is not considered substantial source. Our data suggest wastewater discharges may play critical role influencing waters by directly introducing oversaturated effluents into these ecosystems.

Язык: Английский

Процитировано

0