The effect of iron on the preservation of organic carbon in marine sediments and its implications for carbon sequestration

L Hu, Y Ji, B Zhao, X Liu, J Du, Y Liang… - Science China Earth …, 2023‏ - Springer
Marine sediments are the most significant reservoir of organic carbon (OC) in Earth's surface
system. Iron, a crucial component of the marine biogeochemical cycle, has a considerable …

Effectiveness of chemical oxygen demand as an indicator of organic pollution in aquatic environments

Z Lv, X Ran, J Liu, Y Feng, X Zhong… - Ocean-Land-Atmosphere …, 2024‏ - spj.science.org
The chemical oxygen demand (COD) is an essential indicator of organic pollution that
represents the amount of bulk carbon in water. COD is strongly correlated with nutrient …

Cycling and persistence of iron-bound organic carbon in subseafloor sediments

Y Chen, L Dong, W Sui, M Niu, X Cui… - Nature …, 2024‏ - nature.com
Reactive iron (FeR) serves as an important sink of organic carbon (OC) in marine surface
sediments, which preserves approximately 20% of total OC (TOC) as reactive iron-bound …

Overlooked shelf sediment reductive sinks of dissolved rhenium and uranium in the modern ocean

Q Hong, Y Cheng, Y Qu, L Wei, Y Liu, J Gao… - Nature …, 2024‏ - nature.com
Rhenium (Re) and uranium (U) are essential proxies in reconstructing past oceanic
oxygenation evolution. However, their removal in continental shelf sediments, hotspots of …

How does exotic Spartina alterniflora affect the contribution of iron-bound organic carbon to soil organic carbon in salt marshes?

W Chen, W Zhang, Y Qiu, Z Shu, J Liu, X Zhang… - Science of The Total …, 2024‏ - Elsevier
Iron-bound organic carbon (OC-Fe R) is important for the stability of soil organic carbon
(SOC) in salt marshes, and the Spartina alterniflora invasion reshaped local salt marshes …

Iron promotes the retention of terrigenous dissolved organic matter in subtidal permeable sediments

Z Zhou, H Waska, S Henkel, T Dittmar… - Environmental …, 2024‏ - ACS Publications
Marine permeable sediments are important sites for organic matter turnover in the coastal
ocean. However, little is known about their role in trap** dissolved organic matter (DOM) …

Sediment resuspension accelerates the recycling of terrestrial organic carbon at a large river‐coastal ocean interface

X Sun, L Hu, D Fan, H Wang, Z Yang… - Global Biogeochemical …, 2024‏ - Wiley Online Library
Widespread sediment resuspension and transport processes on continental margins can
modify deposits and influence the preservation of particulate organic carbon (POC) in …

Biotic and Abiotic Regulations of Carbon Fixation into Lacustrine Sediments with Different Nutrient Levels

H Yuan, B Li, Y Cai, E Liu, Q Zeng - Environmental Science & …, 2024‏ - ACS Publications
Lake sediments play a critical role in organic carbon (OC) conservation. However, the
biogeochemical processes of the C cycle in lake ecosystems remain limitedly understood. In …

Preservation of organic carbon associated with iron on continental shelves influenced by hydrodynamic processes

H Li, D Lin, H Zhang, N Wang, Y Zhou… - Environmental …, 2024‏ - ACS Publications
Understanding the environmental fate of organic carbon associated with iron (OC-Fe) is
critically important for investigating OC preservation in aquatic systems. Here, we first …

Thermal stability of sedimentary organic carbon in a large river dominated marginal sea

S Chen, P Yao, Z Wang, B Zhao, L Wang, L Han… - Science of The Total …, 2024‏ - Elsevier
The thermal stability of organic carbon (OC) in marine sediments is one of the critical factors
that influences its burial efficiency in marine environments. However, the distribution …