Query：
学者姓名：庄婉娥
Refining：
Year
Type
Indexed by
Source
Complex
Co-Author
Language
Clean All
Abstract ：
Dissolved organic phosphorus (DOP) plays a critical role in the aquatic phosphorus cycle. However, its molecular composition and controlling factors along the freshwater-estuarine continuum remain largely unknown. To address this issue, we employed Fourier transform-ion cyclotron resonance mass spectrometry (FT-ICR-MS) to characterize the seasonal and spatial dynamics of DOP molecular composition in the subtropical Minjiang River. Our analysis detected a total of 100-271 DOP formulas for each station, with higher %CHOP and %CHONP in summer and higher %CHOSP in winter. The high %CHOSP occurred in the freshwater and decreased rapidly in the estuary, suggesting that the CHOSP molecules were likely derived from anthropogenic inputs, algal production, and sulfurization with weakened dilution at a low runoff in winter. We further compared the molecular composition of DOP with that of the bulk dissolved organic matter (DOM), and found lower percentages of lignin-like compounds, carboxyl-rich alicyclic molecules, and highly unsaturated phenolics but higher percentages of protein-like compounds and labile formulas for DOP, suggesting a higher bioavailability of DOP. Moreover, to unveil the controlling factors of DOP molecular indices, their correlations with key environmental factors (salinity, total suspended matter, and Chlorophyll a) were analyzed, which suggested the mixing of terrestrial aromatic and marine nitrogen/protein-rich compounds, along with the algal production of labile compounds that were partly dependent on light availability. Finally, principal component analysis of DOP molecular indices revealed higher lability in summer than in winter and more oxygen-containing compounds in freshwater than in the estuary in winter, which were probably related to the changes of DOP sources and transformations. In conclusion, these results provided insights into the molecular composition and controlling mechanisms of DOP in the river-coastal continuum, which are valuable for understanding the environmental behaviors of DOP and improving water quality management.
Keyword ：
Dissolved organic matter Dissolved organic matter Dissolved organic phosphorus Dissolved organic phosphorus EEMs-PARAFAC EEMs-PARAFAC Estuary Estuary FT-ICR-MS FT-ICR-MS
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhou, Yanjiao , Yang, Liyang , Fang, Futao et al. Unveiling the molecular composition of dissolved organic phosphorus in the freshwater-estuarine continuum using ultrahigh-resolution FT-ICR-MS [J]. | ENVIRONMENTAL RESEARCH , 2026 , 289 . |
| MLA | Zhou, Yanjiao et al. "Unveiling the molecular composition of dissolved organic phosphorus in the freshwater-estuarine continuum using ultrahigh-resolution FT-ICR-MS" . | ENVIRONMENTAL RESEARCH 289 (2026) . |
| APA | Zhou, Yanjiao , Yang, Liyang , Fang, Futao , Li, Yuqing , Zhuang, Wan-E , Zhu, Zhuoyi . Unveiling the molecular composition of dissolved organic phosphorus in the freshwater-estuarine continuum using ultrahigh-resolution FT-ICR-MS . | ENVIRONMENTAL RESEARCH , 2026 , 289 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Dissolved organic matter (DOM) is very important in aquatic environments, yet it is challenging to characterize DOM as a highly complex mixture of thousands of molecules, and the knowledge of the effects of different degradation processes on different molecules remains limited. This study examined the distribution and degradation of DOM in a large subtropical river using optical techniques and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). At the molecular level, DOM was mainly composed of CHO and lignin-like compounds, which was related to the dominance of forestland in the watershed and resulted in a low biological lability index (MLBL). The modified aromaticity index (AImod), unsaturation degree (DBE), and humic content (HIX) decreased while MLBL, H/C, absorption spectral slope ( S275-295 ), and biological index (BIX) increased in the estuarine zone due to the increasing autochthonous contribution. Photo-and microbial degradation resulted in a similar decrease in the bulk dissolved organic carbon, while they showed opposite effects on the DOM composition. Photo-degradation removed all fluorescent components and decreased molecular weight, HIX, AImod, DBE, %CHO, %lignin-like, %tannin-like, and %condensed aromatic-like compounds. In contrast, bio-degradation preferentially consumed lipid-like, protein-like, and carbohydrate-like compounds, with increases in %lignin-like, %tannin-like, %condensed aromatic-like compounds, and humic-like fluorescent components. Overall, the application of ultra-high resolution mass spectrometry provided valuable insights into the composition and behavior of DOM at the molecular level and revealed the contrasting effects of photo-and microbial degradation on different compounds. These results have implications for better understanding the composition and transformation of aquatic DOM. (c) 2025 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
Keyword ：
Dissolved organic matter Dissolved organic matter EEMs-PARAFAC EEMs-PARAFAC FT-ICR-MS FT-ICR-MS Microbial degradation Microbial degradation Photochemical degradation Photochemical degradation
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Yufan , Zhang, Wenyi , Fang, Futao et al. Deciphering the composition and degradation of dissolved organic matter in a large subtropical river using optical indices and high-resolution FT-ICR-MS [J]. | JOURNAL OF ENVIRONMENTAL SCIENCES , 2025 , 157 : 580-591 . |
| MLA | Wang, Yufan et al. "Deciphering the composition and degradation of dissolved organic matter in a large subtropical river using optical indices and high-resolution FT-ICR-MS" . | JOURNAL OF ENVIRONMENTAL SCIENCES 157 (2025) : 580-591 . |
| APA | Wang, Yufan , Zhang, Wenyi , Fang, Futao , Zhang, Zhihao , Zhu, Zhuoyi , Yang, Liyang et al. Deciphering the composition and degradation of dissolved organic matter in a large subtropical river using optical indices and high-resolution FT-ICR-MS . | JOURNAL OF ENVIRONMENTAL SCIENCES , 2025 , 157 , 580-591 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The burial of sediment organic matter (SOM) in the estuary and shelf plays an important role in the global carbon cycle. However, it is challenging to determine the source, composition, and burial of SOM in the coastal sea, especially at the molecular level. This was explored in the coastal area outside the largest Yangtze River of China with multiple techniques including elemental and stable isotopic analysis, absorption spectroscopy, fluorescence excitation-emission matrices coupled with parallel factor analysis (EEMs-PARAFAC), and ultra-high resolution Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). The end-member mixing analysis based on delta 13C and delta 15N showed a dominance of marine contribution (up to 70%) at most stations while the terrestrial contribution increased to >55% nearshore in summer at a high fluvial sediment flux. This was consistent with the offshore decreasing humic-like C1 and C2, humification index (HIX), %lignin-like compounds, and %CHO but increasing tryptophan-like C3, biological index (BIX), %protein-like compounds, and % CHOS from EEMs-PARAFAC and FT-ICR-MS analysis. The %clay correlated positively with SOM content, HIX, % lignin-like compounds, O/C, and modified aromaticity index (AImod) but correlated negatively with %C3, H/C, and the relative abundance of labile formulas (MLBL), while %silt showed contrasting correlations. These results indicated the fine clay sediments adsorbed more humified, aromatic, oxygenated, and terrestrial compounds that were probably more resistant to biodegradation and thus had a higher burial efficiency than those on the silty sediments. Principal component analysis based on SOM indices further revealed different characteristics of SOM in the nearshore, northern offshore, and southern offshore regions, which were probably dependent on the delivery by local current systems. Overall, these findings contributed to unraveling the source and molecular composition of SOM associated with different grain size sediments and local current delivery, which are fundamental for understanding the factors underlying carbon burial in the complex coastal environment.
Keyword ：
EEMs-PARAFAC EEMs-PARAFAC Estuary Estuary FT-ICR-MS FT-ICR-MS Sediment organic matter Sediment organic matter Stable isotope Stable isotope
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Wenyi , Wang, Yufan , Fang, Futao et al. Characterization of sediment organic matter in the outer Yangtze River Estuary using stable isotopes, optical techniques, and FT-ICR-MS: Implications for the carbon burial mechanism [J]. | WATER RESEARCH , 2024 , 267 . |
| MLA | Zhang, Wenyi et al. "Characterization of sediment organic matter in the outer Yangtze River Estuary using stable isotopes, optical techniques, and FT-ICR-MS: Implications for the carbon burial mechanism" . | WATER RESEARCH 267 (2024) . |
| APA | Zhang, Wenyi , Wang, Yufan , Fang, Futao , Zhuang, Wan-E , Yang, Liyang , Zhu, Zhuoyi . Characterization of sediment organic matter in the outer Yangtze River Estuary using stable isotopes, optical techniques, and FT-ICR-MS: Implications for the carbon burial mechanism . | WATER RESEARCH , 2024 , 267 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Dissolved organic matter (DOM) is important in determining the drinking water treatment and the supplied water quality. However, a comprehensive DOM study for the whole water supply system is lacking and the potential effects of secondary water supply are largely unknown. This was studied using dissolved organic carbon (DOC), absorption spectroscopy, and fluorescence excitation -emission matrices -parallel factor analysis (EEMPARAFAC). Four fluorescent components were identified, including humic-like C1-C2, tryptophan-like C3, and tyrosine -like C4. In the drinking water treatment plants, the advanced treatment using ozone and biological activated carbon (O3-BAC) was more effective in removing DOC than the conventional process, with the removals of C1 and C3 improved by 17.7%-25.1% and 19.2%-27.0%. The absorption coefficient and C1-C4 correlated significantly with DOC in water treatments, suggesting that absorption and fluorescence could effectively track the changes in bulk DOM. DOM generally remained stable in each drinking water distribution system, suggesting the importance of the treated water quality in determining that of the corresponding network. The optical indices changed notably between distribution networks of different treatment plants, which enabled the identification of changing water sources. A comparison of DOM in the direct and secondary water supplies suggested limited impacts of secondary water supply, although the changes in organic carbon and absorption indices were detected in some locations. These results have implications for better understanding the changes of DOM in the whole water supply system to help ensure the supplied water quality.
Keyword ：
Dissolved organic matter Dissolved organic matter Drinking water treatment Drinking water treatment Fluorescence excitation -emission matrices Fluorescence excitation -emission matrices Parallel factor analysis Parallel factor analysis Water supply system Water supply system
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Lin, Jinjin , Yang, Liyang , Zhuang, Wan-E et al. Tracking the changes of dissolved organic matter throughout the city water supply system with optical indices [J]. | JOURNAL OF ENVIRONMENTAL MANAGEMENT , 2024 , 358 . |
| MLA | Lin, Jinjin et al. "Tracking the changes of dissolved organic matter throughout the city water supply system with optical indices" . | JOURNAL OF ENVIRONMENTAL MANAGEMENT 358 (2024) . |
| APA | Lin, Jinjin , Yang, Liyang , Zhuang, Wan-E , Wang, Yue , Chen, Xiaochen , Niu, Jia . Tracking the changes of dissolved organic matter throughout the city water supply system with optical indices . | JOURNAL OF ENVIRONMENTAL MANAGEMENT , 2024 , 358 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Dissolved organic matter (DOM) is very important in determining the speciation, behaviors, and risk of metal pollutants in aquatic ecosystems. Photochemical and microbial degradation are key processes in the cycling of DOM, yet their effects on the DOM-Pb(II) interaction remain largely unknown. This was studied by examining the complexation of river DOM with Pb(II) after degradation, using fluorescence quenching titration and excitationemission matrices-parallel factor analysis (EEMs-PARAFAC). Three humic-like and two protein-like components were identified, with strong removals of humic-like components and decreasing average molecular weight and humification degree of DOM by photo- and photo-microbial degradation. The changes in humic-like abundance and structure resulted in notable weakening of their interaction with Pb(II). The tryptophan-like C2 was also mainly removed by photo-degradation, while the tyrosine-like C3 could be either removed or accumulated. The Pb(II)-binding of protein-like components was generally weaker but was enhanced in some degradation groups, which might be related to the lowering competition from humic-like components. The binding parameters correlated significantly with the DOM indices, which were dominated by photo-degradation for humic-like components but by seasonal variations for the tyrosine-like component. These results have implications for understanding the key mechanisms underlying the variability of the DOM-metal interaction in aquatic environments.
Keyword ：
Dissolved organic matter Dissolved organic matter EEMs-PARAFAC EEMs-PARAFAC Microbial degradation Microbial degradation Pb(II) Pb(II) Photo-degradation Photo-degradation
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yang, Liyang , Chen, Linwei , Zhuang, Wan-E et al. Unveiling changes in the complexation of dissolved organic matter with Pb (II) by photochemical and microbial degradation using fluorescence EEMs-PARAFAC [J]. | ENVIRONMENTAL POLLUTION , 2023 , 341 . |
| MLA | Yang, Liyang et al. "Unveiling changes in the complexation of dissolved organic matter with Pb (II) by photochemical and microbial degradation using fluorescence EEMs-PARAFAC" . | ENVIRONMENTAL POLLUTION 341 (2023) . |
| APA | Yang, Liyang , Chen, Linwei , Zhuang, Wan-E , Zhu, Zhuoyi . Unveiling changes in the complexation of dissolved organic matter with Pb (II) by photochemical and microbial degradation using fluorescence EEMs-PARAFAC . | ENVIRONMENTAL POLLUTION , 2023 , 341 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Dissolved organic matter (DOM) is important for determining the speciation, environmental behavior, and effects of metal pollutants in aquatic environments. However, little is known about the difference between DOM from natural and anthropogenic sources for binding Pb(II). This study examined the Pb(II) binding with DOM from four typical sources including river, leaf litter leachate, and the influent and effluent of a wastewater treatment plant, using fluorescence quenching titration and excitation-emission matrices-parallel factor analysis (EEMs-PARAFAC). Four humic-like and one protein-like fluorescent components were identified, with much higher protein-like fraction and lower humification degree for the influent than for other sources. In the river water and leaf litter leachate, the abundant humic-like components were quenched by 6-17% while the protein-like component kept stable (2-4%) by the addition of Pb(II). In contrast, the influent DOM showed stronger fluorescence quenching of the protein-like component (46%) with higher conditional stability constant and binding fraction of fluorophore than the humic-like components (15-21%). The effluent DOM displayed weak quenching for all fluorescent components (4-6%) and thus weak complexation with Pb(II), indicating notable changes in the chemical composition and metal-binding affinity of DOM by wastewater treatments. These results demonstrated significant impacts of DOM source and chemical composition on its Pb(II) complexation properties, which have implications for understanding the interactions between DOM and heavy metals.
Keyword ：
Dissolved organic matter Dissolved organic matter EEMs-PARAFAC EEMs-PARAFAC Fluorescence quenching titration Fluorescence quenching titration Heavy metal Heavy metal Pb(II) Pb(II)
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Fang , Zhuang, Wan-E , Yang, Liyang . Comparing the Pb(II) binding with different fluorescent components of dissolved organic matter from typical sources [J]. | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH , 2022 , 29 (37) : 56676-56683 . |
| MLA | Liu, Fang et al. "Comparing the Pb(II) binding with different fluorescent components of dissolved organic matter from typical sources" . | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 29 . 37 (2022) : 56676-56683 . |
| APA | Liu, Fang , Zhuang, Wan-E , Yang, Liyang . Comparing the Pb(II) binding with different fluorescent components of dissolved organic matter from typical sources . | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH , 2022 , 29 (37) , 56676-56683 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Chromophoric dissolved organic matter (CDOM) plays important roles in aquatic environments, and its optical properties provide a series of indices for evaluating the source and composition of dissolved organic matter (DOM). However, little is known about the varying photodegradation of CDOM from different sources and the effects on the optical indices of DOM composition. This was studied for typical natural and anthropogenic sources (plant and leaf litter leachates, the influent and effluent of a wastewater treatment plant, and a river). The CDOM absorption (a(280)) showed a lower degradability for the plant leachate than other sources, mainly due to its low molecular weight and aromaticity. Four fluorescent components were identified with excitation-emission matrices-parallel factor analysis (EEMs-PARAFAC), namely benzoic acid/monolignol-like C1, humic-like C2 and C3, and tryptophan-like C4. The plant leachate contained mainly C1, which was photodegraded moderately, while other sources had more C2 and C3 with higher photodegradability. C4 was photodegraded in most sources but was photoproduced in the leaf litter leachate. The absorption slope (S275-295) and slope ratio (S-R) increased while the humification index (HIX) decreased, suggesting a decreasing molecular weight and humic content by photodegradation. This was consistent with the decreasing %C2 and %C3 but increasing %C4, which indicated preferential removal of humic-like components. The %C1, %C2, biological index (BIX), and fluorescence index (FI) were less affected by photodegradation than other indices for most sources. These results have implications for a better understanding of the photochemistry of CDOM and the applications of optical indices.
Keyword ：
absorption spectroscopy absorption spectroscopy CDOM CDOM fluorescence EEMs-PARAFAC fluorescence EEMs-PARAFAC photodegradation photodegradation
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhuang, Wan-E , Chen, Wei , Yang, Liyang . Effects of Photodegradation on the Optical Indices of Chromophoric Dissolved Organic Matter from Typical Sources [J]. | INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH , 2022 , 19 (21) . |
| MLA | Zhuang, Wan-E et al. "Effects of Photodegradation on the Optical Indices of Chromophoric Dissolved Organic Matter from Typical Sources" . | INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 19 . 21 (2022) . |
| APA | Zhuang, Wan-E , Chen, Wei , Yang, Liyang . Effects of Photodegradation on the Optical Indices of Chromophoric Dissolved Organic Matter from Typical Sources . | INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH , 2022 , 19 (21) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The land-ocean aquatic continuum is affected notably by damming, yet the effects of changing dissolved organic carbon (DOC) and optical properties in the reservoir zone of dammed rivers on the downstream waterbodies remain unclear. This was studied in the Minjiang River (SE China) in the normal, wet, and dry seasons, using the measurements of DOC, absorption spectroscopy, and fluorescence excitation-emission matrices-parallel factor analysis (EEMs-PARAFAC). The DOC and absorption spectral slope (S275-295) increased while the absorption coefficient (a280) and DOC-specific UV absorbance (SUVA254) decreased in the surface water of the reservoir. This indicated removals of chromophoric dissolved organic matter (CDOM) and potential additions of autoch-thonous constituents with lower aromaticity and molecular weight. The discharge of more humified DOC from the middle and deep outlets of the reservoir was evident in the adjacent downstream station in the wet season. The DOC and optical indices were generally stable in the downstream river zone in the normal and dry seasons, suggesting that these signals from the reservoir could persist downstream. In contrast, the downstream DOC and CDOM showed evident additions in the wet season, which might be related to enhanced inputs from the sur-rounding soils and residential areas in the rainy and hot summer. The absorption coefficient and humic-like components correlated strongly with salinity in the estuarine zone, indicating they were mainly conservative in the estuary of this study. This suggested that the refractory DOC from the reservoir and river zones could pass the estuary and contribute to the carbon storage in the coastal ocean. In contrast, the protein-like components did not correlate significantly with salinity, indicating more active modifications of labile constituents in the estuary. Overall, our results have implications for assessing the effects of damming on DOC and optical properties across the land-ocean aquatic continuum.
Keyword ：
Absorption spectroscopy Absorption spectroscopy Dissolved organic matter Dissolved organic matter EEMs-PARAFAC EEMs-PARAFAC Estuary Estuary Reservoir Reservoir River River
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhuang, Wan-E , Chen, Wei , Yang, Liyang . Coupled effects of dam, hydrology, and estuarine filtering on dissolved organic carbon and optical properties in the reservoir-river-estuary continuum [J]. | JOURNAL OF HYDROLOGY , 2022 , 617 . |
| MLA | Zhuang, Wan-E et al. "Coupled effects of dam, hydrology, and estuarine filtering on dissolved organic carbon and optical properties in the reservoir-river-estuary continuum" . | JOURNAL OF HYDROLOGY 617 (2022) . |
| APA | Zhuang, Wan-E , Chen, Wei , Yang, Liyang . Coupled effects of dam, hydrology, and estuarine filtering on dissolved organic carbon and optical properties in the reservoir-river-estuary continuum . | JOURNAL OF HYDROLOGY , 2022 , 617 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Dissolved organic matter (DOM) can strongly influence the behavior and risk of metal pollutants in aquatic ecosystems. However, a comprehensive study on the effects of DOM level and environmental factors on the binding of DOM with Pb(II) is lacking. This study examined the DOM-Pb(II) interaction in the river water under variable DOM level, pH, and major ions, using fluorescence excitation-emission matrices-parallel factor analysis (EEMs-PARAFAC). Four humic-like and one protein-like component were identified, and the abundant humiclike components showed higher Pb(II)-binding fractions (f) than the protein-like component. The f of PARAFAC components decreased while the conditional stability constants (logKM) increased for the diluted DOM, indicating the influence of DOM level on its metal binding. The DOM-Pb(II) interaction was sensitive to changes in pH, with generally higher f and lower logKM at the alkaline condition due to changes in the DOM conformation. The addition of major ions significantly decreased the fluorescence quenching by Pb(II), due to competitive effects and potential DOM conformation changes at elevated ions. Overall, our results show that the DOM-Pb(II) complexation is highly dependent on both the DOM properties and environmental factors, which have implications for optimizing the experimental conditions and for comparing the results in different environments.
Keyword ：
Complexation Complexation Dissolved organic matter Dissolved organic matter EEMs-PARAFAC EEMs-PARAFAC Environmental conditions Environmental conditions Pb(II) Pb(II)
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Chen, Linwei , Zhuang, Wan-E , Yang, Liyang . Critical evaluation of the interaction between fluorescent dissolved organic matter and Pb(II) under variable environmental conditions [J]. | CHEMOSPHERE , 2022 , 307 . |
| MLA | Chen, Linwei et al. "Critical evaluation of the interaction between fluorescent dissolved organic matter and Pb(II) under variable environmental conditions" . | CHEMOSPHERE 307 (2022) . |
| APA | Chen, Linwei , Zhuang, Wan-E , Yang, Liyang . Critical evaluation of the interaction between fluorescent dissolved organic matter and Pb(II) under variable environmental conditions . | CHEMOSPHERE , 2022 , 307 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
溶解有机物（DOM）是决定水环境中铅（Pb）的形态、环境行为和生态风险的重要因子.然而，落叶DOM与Pb(II)络合作用的调控机制尚不清楚.光和微生物降解是调控DOM含量、组成与活性的两个关键过程.本研究运用降解培养实验、光谱学表征和荧光猝灭滴定，考察光和微生物降解单独作用和共同作用对芦苇落叶DOM的改造及其对DOM与Pb(II)相互作用的影响.激发-发射三维荧光光谱-平行因子分析共识别出4个类腐殖质组分（C1～C4）和1个类蛋白质组分（C5）.类腐殖质组分更容易被光降解，类蛋白质组分则被微生物优先利用，光降解在短期的光-微生物降解过程中起主导作用.对于原始落叶DOM,Pb(II)主要与类腐殖质组分C1、C2和C4络合，C3组分只在光-微生物降解后的样品呈现显著荧光猝灭，类蛋白质组分C5在光和光-微生物降解后开始参与络合.类腐殖质C1与Pb(II)络合的条件稳定常数logK_M在光降解后升高而在光-微生物降解后下降，C2和C4的logK_M值经过各降解过程后均升高.降解后这3个组分参与络合的比例f和络合容量F_(max)·f均显著降低，且光降解的影响显著高于微生物降解.这些结果表明，光降解和微生物降解对DOM丰度、组成和结构的改造将显著影响其与金属离子的络合稳定性和络合容量.
Keyword ：
光降解 光降解 微生物降解 微生物降解 溶解有机物 溶解有机物 落叶 落叶 铅 铅
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 刘芳 , 陈琳崴 , 庄婉娥 et al. 光和微生物降解对芦苇落叶溶解有机物与铅相互作用的影响 [J]. | 环境科学学报 , 2022 , 42 (09) : 113-122 . |
| MLA | 刘芳 et al. "光和微生物降解对芦苇落叶溶解有机物与铅相互作用的影响" . | 环境科学学报 42 . 09 (2022) : 113-122 . |
| APA | 刘芳 , 陈琳崴 , 庄婉娥 , 杨丽阳 . 光和微生物降解对芦苇落叶溶解有机物与铅相互作用的影响 . | 环境科学学报 , 2022 , 42 (09) , 113-122 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
