Leveraging Artificial Oxygenation Efficacy for Coastal Hypoxia by Taking Advantage of Local Hydrodynamics DOI
Qicheng Meng, Yiwen Pan, Jiliang Xuan

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

This study evaluates deployment strategies for artificial oxygenation devices to mitigate coastal hypoxia, particularly in mariculture regions. Focusing on a typical region the waters of China, we examined combined effects topography, hydrodynamics, and biogeochemical processes. A high-resolution three-dimensional physical-biogeochemical coupled model, validated against observational data from three summer cruises 2020, accurately captured key drivers hypoxia. Results reveal that hypoxic zones exhibit an uneven distribution, driven by persistent offshore jets at specific locations. Nearshore upstream significantly improves oxygen delivery is more cost-efficient due reduced construction maintenance requirements. Uncertainty analysis explored impacts varying water mass properties, concentration, injection flow rates, content. The influence varies depending site. Particularly, buoyant plumes can notably reduce effectiveness hypoxia mitigation. Artificial may lead unintended ecological impacts, including increased nutrient release enhanced primary production, which prolong duration Furthermore, simulations indicate natural downwelling currents are insufficient transport oxygen-enriched surface bottom zones. These findings underscore importance comprehensive predeployment assessments advancement technologies ensure both immediate long-term sustainability.

Language: Английский

Strong potassium uptake in surface sediments of the Changjiang River Estuary and the East China Sea: Implications for authigenic processes and the marine potassium budget DOI
Xuechao Wu, Shouye Yang, Klaus Wallmann

et al.

Earth and Planetary Science Letters, Journal Year: 2025, Volume and Issue: 657, P. 119292 - 119292

Published: March 9, 2025

Language: Английский

Citations

0
Impacts of anthropogenic resuspension on sediment organic matter: an experimental approach DOI Creative Commons
Christian Lønborg, Stiig Markager, Simon David Herzog

et al.

Estuarine Coastal and Shelf Science, Journal Year: 2024, Volume and Issue: 310, P. 108981 - 108981

Published: Oct. 11, 2024

Language: Английский

Citations

1
Impacts of Anthropogenic Resuspension on Sediment Organic Matter: An Experimental Approach DOI
Christian Lønborg, Stiig Markager, Simon David Herzog

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
Leveraging Artificial Oxygenation Efficacy for Coastal Hypoxia by Taking Advantage of Local Hydrodynamics DOI
Qicheng Meng, Yiwen Pan, Jiliang Xuan

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

This study evaluates deployment strategies for artificial oxygenation devices to mitigate coastal hypoxia, particularly in mariculture regions. Focusing on a typical region the waters of China, we examined combined effects topography, hydrodynamics, and biogeochemical processes. A high-resolution three-dimensional physical-biogeochemical coupled model, validated against observational data from three summer cruises 2020, accurately captured key drivers hypoxia. Results reveal that hypoxic zones exhibit an uneven distribution, driven by persistent offshore jets at specific locations. Nearshore upstream significantly improves oxygen delivery is more cost-efficient due reduced construction maintenance requirements. Uncertainty analysis explored impacts varying water mass properties, concentration, injection flow rates, content. The influence varies depending site. Particularly, buoyant plumes can notably reduce effectiveness hypoxia mitigation. Artificial may lead unintended ecological impacts, including increased nutrient release enhanced primary production, which prolong duration Furthermore, simulations indicate natural downwelling currents are insufficient transport oxygen-enriched surface bottom zones. These findings underscore importance comprehensive predeployment assessments advancement technologies ensure both immediate long-term sustainability.

Language: Английский

Citations

0