Nutrient Dynamics under the Coupling Effects of Damming and Urbanization in the Three Gorges Reservoir: Status, Sources, and Driving Factors DOI
Di Wang, Guilin Han, Yuchun Wang

et al.

ACS Earth and Space Chemistry, Journal Year: 2024, Volume and Issue: 8(5), P. 1101 - 1110

Published: May 3, 2024

The coupling effect of damming and urbanization on nutrient dynamics renders the aquatic environment sensitive vulnerable, posing a significant global concern. However, role as source or sink nutrients remains uncertain. In this study, river water samples were collected in Three Gorges Reservoir (TGR), which is recognized world's largest hydropower engineering. By integrating solute chemistry flux budget modeling, status, source, transformation riverine revealed, interplay between storage human inputs TGR was discussed. concentrations TDN DSi 100.2 ± 46.1 μmol/L 115.7 14.1 μmol/L, respectively. NO3––N (77.9 64.1 μmol/L) main species TDN, with NH4+–N dissolved organic nitrogen accounting for only 2.5 19.7%, attributed to silicate weathering, while exhibited influence from anthropogenic inputs. About 71.7% retained converted by nitration along river. Evidence correlation (p < 0.05) NO3––N/NH4+–N d-excess suggests that evaporation process accelerated promotes nitrification. Through net input model, atmospheric deposition primary factor affecting water, highlighting critical impact urbanization. estimated contribution fluxes stored 1997 2020 limited ratio decrease yearly, supporting level rise release nitrogen. This study enhances comprehension impacts biogeochemical cycle rivers, providing enlightenment environmental health management large reservoirs.

Language: Английский

Monitoring nutrient and beneficial elements in the topsoil: the function of weathered background and later surficial process on their distribution DOI
Bo Zhang,

Kai-Ning Lv,

Huan Li

et al.

Environmental Monitoring and Assessment, Journal Year: 2025, Volume and Issue: 197(3)

Published: Feb. 4, 2025

Language: Английский

Citations

0
Soil Heavy Metal Accumulation and Ecological Risk in Mount Wuyi: Impacts of Vegetation Types and Pollution Sources DOI Creative Commons

Feng Wu,

Zhu Dong-hai,

Tao Yang

et al.

Land, Journal Year: 2025, Volume and Issue: 14(4), P. 712 - 712

Published: March 26, 2025

Soil heavy metal (HM) contamination has become a critical global environmental issue, predominantly caused by industrial and agricultural operations. This study focuses on Mount Wuyi, UNESCO biodiversity hotspot major tea production base, to examine vegetation-mediated soil HM accumulation under anthropogenic impacts. We analyzed nine HMs (Mn, Cu, Zn, Cd, Hg, As, Pb, Cr, Ni) across diverse vegetation types using geochemical indices Positive Matrix Factorization (PMF) modeling. The findings revealed Mn Zn were dominant elements, Cr Pb concentrations exceeded regional background values 3.47 1.26 times, respectively. demonstrated significant pollution levels, while Cd Hg posed the highest ecological risks. Vegetation type significantly influenced distribution patterns, with cultivated areas shrublands (including gardens) accumulating higher of from transportation sources. Notably, bamboo forests exhibited natural resistance contamination. PMF analysis identified four primary sources: urbanization (27.94%), transport–agriculture activities (21.40%), practices (12.98%), atmospheric deposition (12.96%). These results underscore need for implementing clean energy solutions, phytoremediation strategies, tea-specific detoxification measures maintain security sustainability in this ecologically region.

Language: Английский

Citations

0
Study on the migration pathway and isotopic composition of Zn in soil, plant and water in mining area DOI
Jing Kong,

Qingjun Guo,

Rongfei Wei

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 494, P. 138394 - 138394

Published: April 23, 2025

Language: Английский

Citations

0
Multi-elements linear discriminant analysis of herbaceous and woody plants in southwest china karst region using orthogonal partial least squares model DOI

Yuqing Zhao,

Guilin Han, Rui Qu

et al.

Plant Ecology, Journal Year: 2024, Volume and Issue: 225(7), P. 653 - 667

Published: May 7, 2024

Language: Английский

Citations

2
Discrimination of brewing technologies and assessment of health risks based on rare earth elements: Evidence of fingerprint in Chinese famous vinegars DOI
Ruiyin Han, Qian Zhang, Daobing Wang

et al.

Food Chemistry, Journal Year: 2024, Volume and Issue: 464, P. 141539 - 141539

Published: Oct. 5, 2024

Language: Английский

Citations

2
Accumulation Pattern and Potential Ecological Risk of Heavy Metals in Topsoil as Affected by Diverse Sources in Different Ecosystems in Western Dabie Mountain DOI Open Access
Tao Yang,

Feng Wu,

Minxuan Luo

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(7), P. 1116 - 1116

Published: June 27, 2024

Soil heavy metal (HM) control has become a pressing global ecological and environmental issue, with significant focus on the western Dabie Mountain in China, region that is recognized for its barriers water sources. We analyzed concentrations, pollution status, potential risks of 10 HMs (i.e., Cu, +Pb, Zn, Cr, Ni, Co, Cd, As, Hg, Mn) topsoil different ecosystems this region. The effects four soil groups (Anthrosol, Fluvisols, Gleysol, Alisols) three texture types (sandy, clayey, loamy soils) above aspects were also analyzed. Positive Matrix Factorization (PMF) models performed to identify quantify sources contribution rates these HMs. Results showed level HM may be negligible, there was no risk. Of all metals, Pb Cd exhibited highest levels pollution. risk associated decreased from croplands urban further forests. Cu Co more likely accumulate Anthrosols, while Alisols Pb, Hg had higher overall clayey soils both than sandy soils. accumulation closely related organic matter clay contents. main can agricultural activities, parent material, mining, industrial vehicle emissions. These findings suggest special attention should paid Mountain. Future efforts reducing smelting, emissions, as well strengthening research migration patterns mechanisms

Language: Английский

Citations

1
Dissolved trace elements in the upper reaches of Lancang River, southeast Qinghai-Tibet Plateau: Current status and distribution, risk and source DOI

Mingzhe Guo,

Shilin Gao, Qixin Wu

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 260, P. 119749 - 119749

Published: Aug. 8, 2024

Language: Английский

Citations

1
Development of copper contamination trajectory on the soil systems: A review on the application for stable copper isotopes DOI Creative Commons
Xiaodi Zheng, Guilin Han, Jie Zeng

et al.

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: 36, P. 103795 - 103795

Published: Aug. 24, 2024

Soil copper (Cu) contamination is a ubiquitous and prevalent environmental problem in many countries (such as developed Cu-related industrial areas), endangering food safety human health. Emerging crucial instrument, stable Cu isotope analysis employed to differentiate between natural human-induced sources of the fate on soil systems. This study provides an overview of: (i) analytical methods for isotopes, (ii) compositions possible end-members Earth's surface systems, including particulate matter and, dry wet deposition soil, (iii) fractionation mechanisms isotopes different types pollutants, tracer origin soils. These signatures have significant implications assessment remediation pollution scenarios. However, utilization remains limited tracing source Cu-contaminated soils through analysis. As result, this also presents perspective application trace their soil.

Language: Английский

Citations

1
Nutrient Dynamics under the Coupling Effects of Damming and Urbanization in the Three Gorges Reservoir: Status, Sources, and Driving Factors DOI
Di Wang, Guilin Han, Yuchun Wang

et al.

ACS Earth and Space Chemistry, Journal Year: 2024, Volume and Issue: 8(5), P. 1101 - 1110

Published: May 3, 2024

The coupling effect of damming and urbanization on nutrient dynamics renders the aquatic environment sensitive vulnerable, posing a significant global concern. However, role as source or sink nutrients remains uncertain. In this study, river water samples were collected in Three Gorges Reservoir (TGR), which is recognized world's largest hydropower engineering. By integrating solute chemistry flux budget modeling, status, source, transformation riverine revealed, interplay between storage human inputs TGR was discussed. concentrations TDN DSi 100.2 ± 46.1 μmol/L 115.7 14.1 μmol/L, respectively. NO3––N (77.9 64.1 μmol/L) main species TDN, with NH4+–N dissolved organic nitrogen accounting for only 2.5 19.7%, attributed to silicate weathering, while exhibited influence from anthropogenic inputs. About 71.7% retained converted by nitration along river. Evidence correlation (p < 0.05) NO3––N/NH4+–N d-excess suggests that evaporation process accelerated promotes nitrification. Through net input model, atmospheric deposition primary factor affecting water, highlighting critical impact urbanization. estimated contribution fluxes stored 1997 2020 limited ratio decrease yearly, supporting level rise release nitrogen. This study enhances comprehension impacts biogeochemical cycle rivers, providing enlightenment environmental health management large reservoirs.

Language: Английский

Citations

0