A perspective on the algae-derived dissolved organic matter and its dynamic influence on the aggregation of nanoplastics in eutrophic waters DOI
Xiang Liu, Quan Yuan, Jihui Ding

et al.

Chemosphere, Journal Year: 2024, Volume and Issue: 369, P. 143907 - 143907

Published: Dec. 1, 2024

Language: Английский

Internal loading regulates the phosphorus concentration in a diversion input shallow lake in the semi-humid region of North China: Differentiated processes in littoral wetland and open water areas DOI
Xu He, Wenxuan Han, Qiuyu Chen

et al.

Water Research, Journal Year: 2024, Volume and Issue: 257, P. 121680 - 121680

Published: April 26, 2024

Language: Английский

Citations

8
Characteristics and mechanisms of nitrogen exchanges across the sediment-water interface of the macrophyte- and algae-dominated areas under the influence of suspended particulate matter deposition DOI Open Access

Han Wenxuan,

Qiuyu Chen, Xu He

et al.

Journal of Lake Sciences, Journal Year: 2025, Volume and Issue: 37(1), P. 76 - 88

Published: Jan. 1, 2025

Language: Английский

Citations

1
Application of products derived from pyrolysis and hydrothermal carbonization as conditioners for aerobic composting produced multiple beneficial effects: Evaluation based on 10-ton pilot scale trials DOI
Yuanyuan Feng, Q. -J. Tang,

Wenping Xie

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159793 - 159793

Published: Jan. 1, 2025

Language: Английский

Citations

1
Effect of marine anoxia on the conversion of macroalgal biomass to refractory dissolved organic carbon DOI

Lingyun Zhao,

Huawei Qin,

Mingliang Zhang

et al.

Marine Environmental Research, Journal Year: 2025, Volume and Issue: 204, P. 106956 - 106956

Published: Jan. 7, 2025

Language: Английский

Citations

0
Higher dynamic and turnover yet enhanced organic carbon burial in Spartina alterniflora sediments: A case study in a temperate coastal wetland DOI
Yueming Wu, Binghe Xu,

Danqing Sun

et al.

CATENA, Journal Year: 2025, Volume and Issue: 249, P. 108701 - 108701

Published: Jan. 10, 2025

Language: Английский

Citations

0
Vertical Profile Characteristics of Dissolved Organic Matter Biochemistry in the Tropical Reservoir Shaped by Hydrodynamic Forces DOI Open Access

Z. Liu,

Miao Chen,

Huiran Liu

et al.

Water, Journal Year: 2025, Volume and Issue: 17(2), P. 203 - 203

Published: Jan. 14, 2025

Dissolved organic matter (DOM) exerts a crucial role in biogeochemical processes and ascertaining water quality reservoirs, where it is vulnerable to the dynamic impacts of surface inflows. However, understanding how DOM quantity biochemical features responds hydrodynamic forces tropical reservoirs remains limited. To enhance our vertical profiles characteristics under varying (strong, moderate, weak regions) Chitian Reservoir (18°43′–18°42′ N, 109°68′–109°70′ E), December 2023, we investigated concentrations column samples using multispectral techniques, parallel factor model, two-dimensional correlation analysis. Our results indicated that (4.34 ± 0.36 mg/L) are highest reservoir center, whereas total nitrogen (0.52 0.04 mg/L), phosphorus (0.02 0.03 nitrate (1.01 0.07 present their values inlet region. As force decreases, microbial activity increases, DOM’s humification degree molecular weight decline. comprises humic-like components, including three terrestrial sources (accounting for 85.38%~87.03%) one source, with dominant allochthonous origin. The relative abundance components decreased from 14.62% 12.97% increasing increased depth. functional groups strong region reservoir’s upper layer show high consistency uniformity. Phenolic O–H most reactive group concerning changes depth across all areas, followed by polysaccharide C–O, owing its photoactivity. In contrast, aromatic C–H demonstrates weakest reactivity. spectral closely linked nutrient form (N P).

Language: Английский

Citations

0
Biochemical Oxygen Demand Prediction Based on Three-Dimensional Fluorescence Spectroscopy and Machine Learning DOI Creative Commons
Xu Zhang, Yihao Zhang,

Xuanyi Yang

et al.

Sensors, Journal Year: 2025, Volume and Issue: 25(3), P. 711 - 711

Published: Jan. 24, 2025

Biochemical oxygen demand (BOD) is an important indicator of the degree organic pollution in water bodies. Traditional methods for BOD5 determination, although widely used, are complicated and dependent on accurate chemical measurements dissolved oxygen. The aim this study was to propose a facile method predicting biochemical by fluorescence signals using three-dimensional spectroscopy parallel factor analysis combination with machine learning algorithm. samples were incubated five days national standard method, during which contents data measured at eight-hour intervals. maximum intensity three components decomposed extracted analysis. relationship between values established random forest model. results showed that there good correlation BOD values. effectively predicted model high goodness fit (R2 = 0.878) low mean square error (MSE 0.28). Although did not shorten incubation time, successful prediction realized non-contact measurement signals. This avoids operation DO improves detection efficiency, provides convenient solution analyzing large quantities monitoring quality.

Language: Английский

Citations

0
Biocrusts benefit soil carbon sequestration via increasing the stability of soil dissolved organic carbon in dryland ecosystem DOI
Jia Shi,

Jianguo Tao,

Yumei Peng

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 375, P. 124304 - 124304

Published: Jan. 30, 2025

Language: Английский

Citations

0
Enclosure restoration regulates epiphytic microbial communities involved in carbon sequestration in a restored urban lake: A new insight from the stability of dissolved organic matter DOI

Siwen Hu,

Dayong Zhao, Rujia He

et al.

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145295 - 145295

Published: March 1, 2025

Language: Английский

Citations

0
Linking sediment geochemistry with catchment processes, internal phosphorus loading and lake water quality DOI Creative Commons
Olga Tammeorg, Gertrud K. Nürnberg, Jukka Horppila

et al.

Water Research, Journal Year: 2024, Volume and Issue: 263, P. 122157 - 122157

Published: July 26, 2024

Research in the field of sediment geochemistry suggests potential linkages between catchment processes (land use), internal phosphorus (P) loading and lake water quality, but evidence is still poorly quantified due to a limited amount data. Here we address issues based on comprehensive data set from 27 lakes southern Finland. Specifically, aimed at: 1) elucidating factors behind spatial variations geochemistry; 2) assessing impact diagenetic transformation P regeneration across changes vertical distribution components; 3) exploring role forms (IL), 4) determining IL quality. The relationship concentration area percentage (FA%) was statistically significant (mainly eutrophic) with catchments that included more than 10 % fields. We found iron-bound (Fe-P) increased increasing FA%, which agrees high expected losses cultivated areas. Additionally, populated areas pool Fe-P. Internal significantly positively related both Fe-P organic (Org-P). However, Org-P not (as third predictor) models had trophic state variable as first predictor second predictor. Further, profiles components indicated transformations long-term release, especially deeper maximum depth longer residence time. Finally, correlated quality variables including phytoplankton biomass, its proportion cyanobacteria, chlorophyll index. Our findings suggest reduction will decrease loads increase through reduced

Language: Английский

Citations

3