Spatial distribution and molecular evidence of CO2 dark production from lake sediments during anoxic-oxic transitions across a watershed DOI
W. Guo, Peng Liao, Junjian Wang

et al.

Chemical Geology, Journal Year: 2024, Volume and Issue: unknown, P. 122577 - 122577

Published: Dec. 1, 2024

Language: Английский

Sediment particle size distribution, source of organic matter and environmental implications in the Liao River, northeast China DOI

Panpan Cui,

Haifu Li, Lijuan Cui

et al.

CATENA, Journal Year: 2025, Volume and Issue: 249, P. 108696 - 108696

Published: Jan. 5, 2025

Language: Английский

Citations

1
Microbial transformation of sulfur-containing dissolved organic matter in the intertidal zone of a mountainous river estuary responding to tidal fluctuation DOI
Longfei Wang,

Guosheng Zhao,

Weidong Guo

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: 274, P. 121363 - 121363

Published: March 9, 2025

Language: Английский

Citations

1
Rice-crayfish farming system promote subsoil microbial residual carbon accumulation and stabilization by mediating microbial metabolism process DOI

Wanyang Zhang,

Yi Song, Shihao Ma

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 946, P. 174188 - 174188

Published: June 24, 2024

Language: Английский

Citations

5
Cycling and persistence of iron-bound organic carbon in subseafloor sediments DOI Creative Commons
Y. Chen, Liang Dong,

Weikang Sui

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: July 29, 2024

Reactive iron (FeR) serves as an important sink of organic carbon (OC) in marine surface sediments, which preserves approximately 20% total OC (TOC) reactive iron-bound (FeR-OC). However, the fate FeR-OC subseafloor sediments and its availability to microorganisms, remain undetermined. Here, we reconstructed continuous records two sediment cores northern South China Sea encompassing suboxic methanic biogeochemical zones reaching a maximum age ~100 kyr. The downcore contributes relatively stable proportion 13.3 ± 3.2% TOC. distinctly lower values less than 5% TOC, accompanied by notable 13C depletion FeR-OC, are observed sulfate-methane transition zone (SMTZ). is suggested be remobilized microbially mediated reductive dissolution FeR subsequently remineralized, flux 18–30% methane consumption SMTZ. global reservoir active Quaternary could 19-46 times size atmospheric pool. Thus, pool may support microorganisms contribute regulating Earth's cycle. This study shows that (FeR-OC) generally persistent but can during reduction utilized microbes sediments. sedimentary

Language: Английский

Citations

4
From carbon sequestration perspective: Adsorption of minerals enhances the stabilization of organic fractions in composting DOI Creative Commons
Ziwei Jiao,

Ruoqi Li,

Kui Zhang

et al.

Environmental Technology & Innovation, Journal Year: 2025, Volume and Issue: 37, P. 104023 - 104023

Published: Jan. 7, 2025

Language: Английский

Citations

0
Carbon Cycling in Wetlands Under the Shadow of Microplastics: Challenges and Prospects DOI Creative Commons
Linan Liu, Yan Hua,

Jingmin Sun

et al.

Toxics, Journal Year: 2025, Volume and Issue: 13(3), P. 143 - 143

Published: Feb. 20, 2025

Wetlands are one of the most crucial ecosystems for regulating carbon sequestration and mitigating global climate change. However, disturbance to dynamics caused by microplastics (MPs) in wetlands cannot be overlooked. This review explores impacts MPs on cycles within wetland ecosystems, focusing underlying physicochemical microbial mechanisms. The accumulation sediments can severely destabilize plant root functions, disrupting water, nutrient, oxygen transport, thereby reducing biomass development. Although may temporarily enhance storage, they ultimately accelerate mineralization organic carbon, leading increased atmospheric dioxide emissions undermining long-term sequestration. A critical aspect this process involves shifts community structures driven selective colonization MPs, which affect decomposition methane production, thus posing a threat greenhouse gas emissions. Notably, dissolved matter derived from biodegradable promote photoaging coexisting enhancing release harmful substances aged further impacting microbial-associated due disrupted metabolic activity. Therefore, it is imperative deepen our understanding adverse effects mechanisms health cycles. Future strategies should incorporate regulation ecological engineering techniques develop effective methodologies aimed at maintaining sustainable capacity affected MP contamination.

Language: Английский

Citations

0
Soil-derived Dissolved Organic Matter in Inland Wetlands along A Temperate River: Insights from Spectroscopic Characteristics Coupled with Machine Learning Methods DOI Creative Commons
Wenliang Ju, Dengke Ma, Meilian Chen

et al.

Water Research X, Journal Year: 2025, Volume and Issue: unknown, P. 100339 - 100339

Published: March 1, 2025

Language: Английский

Citations

0
Freeze–Thaw Cycle Events Enable the Deep Disintegration of Biochar: Release of Dissolved Black Carbon and Its Structural-Dependent Carbon Sequestration Capacity DOI

Lang Zhu,

Na Chen,

Xianglei Zhang

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(47), P. 20979 - 20989

Published: Nov. 14, 2024

Biochar is widely regarded as a recalcitrant carbon pool. However, the impact of freeze-thaw cycle events on its storage capacity, particularly release dissolved black (DBC), has remained poorly investigated. This study investigated behavior DBC from biochar pyrolyzed at 300-700 °C during cycles and their retention capacity in soil. Freeze-thaw dramatically promoted (33.08-230.74 mg C L

Language: Английский

Citations

3
Effects of Land Reclamation on the Stability of Soil Organic Carbon Pool in Floodplains DOI

Yapeng Ding,

Qinghe Zhao,

Shengyan Ding

et al.

Land Degradation and Development, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

ABSTRACT Land reclamation significantly alters floodplain structure and function, affecting soil organic carbon (SOC) dynamics, which are crucial for fertility sequestration. However, few studies have examined SOC variation following reclamation. This study investigated the effects of land on pool stability in along lower Yellow River, utilizing samples from four types (exposed beaches [EB], farmlands [FL], planted forests [PF], wetlands [WL]) across three seasons (spring, summer, autumn). Reclamation increased SOC, labile (LOC), non‐labile (NOC), management index (CMI) topsoil (0–20 cm) compared to EB ( p < 0.05). LOC, NOC, CMI were reduced deeper layers (below 20 cm), particularly FL PF. Seasonal variations LOC also affected by reclamation, especially FL. While did not alter over time, it enhanced pools seasonal fluctuations pool, Correlation analysis, random forest modeling, partial least squares structural equation modeling (PLS‐SEM) indicated that water content mediated impact while enzyme activity, nitrogen composition, determined changes. These results provide detailed information measures ecosystems.

Language: Английский

Citations

0
Microbial advanced oxidation aroused by bacteria-algae symbiosis induced abiotic methane production in anaerobic digestion DOI
Jinshuo Zhang, Xuepeng Wang,

Zhenglin Chen

et al.

Water Research, Journal Year: 2025, Volume and Issue: 282, P. 123776 - 123776

Published: May 3, 2025

Language: Английский

Citations

0