Aquatic Geochemistry最新文献

{"title":"Limited Diel Variability of Greenhouse Gases, Carbon and ~60 Major and Trace Solutes in Humic Northern Peatland Headwaters","authors":"Artem V. Chupakov,&nbsp;Nadezhda S. Trudova,&nbsp;Sergey D. Prasolov,&nbsp;Svetlana A. Zabelina,&nbsp;Liudmila S. Shirokova,&nbsp;Tatiana I. Lovdina,&nbsp;Anna A. Chupakova,&nbsp;Natalia S. Prilutskaya,&nbsp;Olga Yu. Moreva,&nbsp;Oleg S. Pokrovsky","doi":"10.1007/s10498-026-09443-8","DOIUrl":"10.1007/s10498-026-09443-8","url":null,"abstract":"<div><p>Small peatland waters are important interfaces for carbon transfer to the atmosphere and downstream networks, yet the extent to which daytime sampling represents a complete diel cycle remains uncertain. We conducted continuous 51-h campaigns in August in five headwater water bodies of a permafrost-free ombrotrophic bog and a discontinuous-permafrost peatland in northeastern Europe. Hourly physical measurements and 3-hourly analyses of dissolved organic and inorganic carbon, CO₂ and CH₄, nutrients, and approximately 60 major and trace solutes were obtained under stable anticyclonic conditions. The operational night intervals lasted approximately 4–7 h but were dominated by twilight rather than full astronomical darkness. Water temperature and dissolved oxygen showed the clearest diel structure, whereas most dissolved constituents displayed small amplitudes and no consistent day–night phase. Across the available major- and trace-element/site combinations, 93% of mean day/night ratios were between 0.8 and 1.2. Dissolved CO₂ and CH₄ often increased at night, whereas calculated diffusive fluxes were commonly similar or higher during daytime. Lower nighttime wind-dependent gas-transfer velocities may attenuate the modeled flux response to these concentration increases, particularly in the permafrost-free bog. Exploratory tests did not detect day–night differences for most variables; however, the small number of nighttime observations precludes interpreting non-significance as equivalence. These results document limited diel amplitude under stable late-summer baseflow conditions in highly humic, acidic peatland waters. They do not constrain ebullitive CH₄ release and should not be extrapolated to other seasons, weather regimes, or clearer waters without additional high-frequency observations. Within this restricted domain, daytime measurements can characterize mean hydrochemistry, whereas greenhouse-gas flux estimates additionally require representative gas-transfer coefficients.</p></div>","PeriodicalId":8102,"journal":{"name":"Aquatic Geochemistry","volume":"32 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface Reactivity of Talc: Acid-Base Behaviour and Cd Adsorption","authors":"L. Z. Lakshtanov,&nbsp;O. N. Karaseva,&nbsp;D. A. Khanin","doi":"10.1007/s10498-026-09442-9","DOIUrl":"10.1007/s10498-026-09442-9","url":null,"abstract":"<div><p>Using surface titration and electrokinetic measurements in aqueous solutions at 25 °C, the surface of natural talc and cadmium adsorption were studied. Using the Mular – Roberts titration method, the point of zero salt effect, which in the case of talc is close to the point of zero charge was determined to be pH_pzse = 8.1 ± 0.1, while the isoelectric point pH_iep is approximately 2, which corresponds to the predominance of SiO₂ in the surface layer due to the preferential removal of Mg in the acidic region. When titrating from pH 3 to the alkaline region, ζ-potential of the talc surface exhibits strong hysteresis, becoming positive, and pH_iep shifts toward the alkaline region due to the retardation of the reverse exchange reaction Mg²⁺ → 2 H⁺. This circumstance suggests that proton adsorption (desorption) occurs only at the outer adsorption sites of the edges, making it possible to apply the theory of surface complexation to adsorption modeling. Cadmium adsorption on talc is described by the Freundlich isotherm, and the adsorption kinetics obey a pseudo-second-order equation. Almost complete (90–98%, depending on concentration) adsorption of cadmium is observed in neutral and slightly alkaline solutions (pH 7.5–8). Coupled modeling of proton and cadmium adsorption using the Extended Constant-|Capacitance Model showed that the best agreement with experimental data on both cadmium and proton adsorption is provided by a model with two inner-sphere surface cadmium complexes, &gt; MgOCdOH and &gt; SiOHCd²⁺. Cadmium adsorption (at pH &gt; 6) is primarily determined by the surface complex &gt; MgOCdOH, while minor absorption in the range 4 &lt; pH &lt; 6 is associated with the formation of the silanol complex &gt; SiOHCd²⁺.</p></div>","PeriodicalId":8102,"journal":{"name":"Aquatic Geochemistry","volume":"32 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Warming, Not Light and nutrients, Could Drive Dissolved Oxygen Availability in Shallow Lake Ecosystems","authors":"Mohammed Hamdan","doi":"10.1007/s10498-026-09441-w","DOIUrl":"10.1007/s10498-026-09441-w","url":null,"abstract":"<div><p>Due to ongoing climate change, northern lakes have become warmer. Warming is predicted to influence dissolved oxygen (DO) availability, indirectly. However, few studies have investigated this indirect role of warming as a controlling factor of DO. Here, we experimentally tested impacts of warming (+ 3 C) on DO availability of four enclosures compared to four ambient-condition enclosures. The results showed that DO is significantly lower in the heated enclosures compared to the ambient, rather than light availability (PAR) was higher in the heated enclosures during the experiment. DO in both groups of enclosures was significantly correlated to water temperature (WT) and phytoplankton chlorophyll-<i>a</i> (Chl-<i>a</i>) concentration, not to PAR and nutrients. While phytoplankton Chl-<i>a</i> was not correlated to nutrient concentrations, it was negatively impacted by warming treatment compared to ambient enclosures. We can conclude that warming, rather than nutrient availability and increased PAR, could indirectly reduce DO for the whole-ecosystem in shallow lakes. Our results confirm the idea of including primary trophic levels in the studies that trying to understand drivers of DO availability with ongoing climate warming, especially, in shallow lake ecosystems.</p></div>","PeriodicalId":8102,"journal":{"name":"Aquatic Geochemistry","volume":"32 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147338316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical Physicochemical Modeling of the Geochemical Behavior of Uranium and Thorium in Radon Waters of Southern Siberia","authors":"A. N. Nikitenkov,&nbsp;D. A. Novikov,&nbsp;T. V. Korneeva,&nbsp;F. F. Dultsev","doi":"10.1007/s10498-025-09440-3","DOIUrl":"10.1007/s10498-025-09440-3","url":null,"abstract":"<div><p>The first results obtained by the numerical physicochemical modeling of uranium and thorium behavior in the radon-rich waters of southern Siberia are presented. The studied waters are characterized by a wide variation of geochemical parameters (pH varies from 5.9 to 10.1; Eh from − 500 to + 285 mV), have diverse chemical composition, with dominating HCO₃ Mg–Ca, HCO₃ Na–Ca and Cl–SO₄ –HCO₃ Na, SO₄–HCO₃ Na–Mg–Ca types, with TDS value varying from 0.2 to 2.6 g/dm³ and silicon content 0.52–32.90 mg/dm³. The possibility for uranium minerals to be formed from the radioactive waters of southern Siberia has been established: In particular, uraninite and thorianite can be most actively precipitated within rather broad range of redox conditions, while uranium black is to occur less frequently. The possibility for thorium minerals to occur in trace amounts is also determined, with thorianite ThO₂ as the most probable one. At pH values around 5, the formation of thorium sulfate Th(SO₄)₂ is also possible. In an acidic, strongly reducing environment with Eh &lt; − 300 mV, trace amounts of ThS₂ and Th₂S₃ may be deposited.</p></div>","PeriodicalId":8102,"journal":{"name":"Aquatic Geochemistry","volume":"31 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing Silicate Catchment Dynamics of the Oplotnica River (Slovenia) Through Stable Carbon and Nitrogen Isotopes","authors":"Tjaša Kanduč,&nbsp;Mirijam Vrabec,&nbsp;Timotej Verbovšek,&nbsp;Jennifer McIntosh,&nbsp;Daniel Žlindra,&nbsp;Urša Vilhar","doi":"10.1007/s10498-025-09439-w","DOIUrl":"10.1007/s10498-025-09439-w","url":null,"abstract":"<div><p>This study investigated the sources of carbon and nitrogen in a small, silicate-dominated catchment (Oplotnica River, Pohorje, Slovenia) with two creeks, Lukanjski and Javorski, from 2012 to 2014. Additionally, carbon and nitrogen cycling in soil profiles was studied at Javorski Creek. Isotopic analyses of river water, particulates, and sediments provided a more holistic view of the sources of carbon and nitrogen, weathering contributions, and the evasion or sequestration of CO₂ in the atmosphere within the catchments. The weathering of rocks, such as granodiorite and quartz diorite, influences water geochemistry. The Oplotnica River and its tributaries were characterized by the ion composition: Na⁺  &gt; Ca²⁺  &gt; Mg²⁺  &gt; K⁺ and HCO₃⁻ &gt; SO₄²⁻ &gt; Cl⁻ &gt; NO₃⁻. Partial pressure of CO₂ concentrations in river and creeks ranged from 1.1 to 13.4 times that of atmospheric pressure, representing a source of CO₂ to the atmosphere. The carbon isotope value of dissolved inorganic carbon (<i>δ</i>¹³C_DIC) ranged from − 9.8 to − 1.4‰ in river, while in the creeks, it ranged from − 26.1 to − 4.7‰, reflecting the degradation of organic matter and exchange with the atmosphere. The intensity of bicarbonate weathering for the Oplotnica River at its gauging station was 10.4 mmol/(l⋅km²⋅s), characteristic of silicate watersheds. The isotopic composition of carbon (<i>δ</i>¹³C) and nitrogen (<i>δ</i>¹⁵N) in river sediments reflects values typical of soil and temperate (C3) plants. This study is significant on both local and global levels, as it addresses the contribution of weathering rates and the release of CO₂ to the atmosphere from small silicate watersheds.</p></div>","PeriodicalId":8102,"journal":{"name":"Aquatic Geochemistry","volume":"31 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10498-025-09439-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Statistical Prediction of In Situ Coral Reef Carbonate Dynamics Using Endmember Chemistry, Hydrodynamic Models, And Benthic Composition","authors":"Heidi K. Hirsh,&nbsp;Thomas A. Oliver,&nbsp;Thomas Dobbelaere,&nbsp;Ana M. Palacio-Castro,&nbsp;Hannah C. Barkley,&nbsp;Alice E. Webb,&nbsp;Emmanuel Hanert,&nbsp;Ian C. Enochs","doi":"10.1007/s10498-025-09438-x","DOIUrl":"10.1007/s10498-025-09438-x","url":null,"abstract":"<div><p>In the face of rapidly compounding climate change impacts, including ocean acidification (OA), it is critical to understand present-day stress exposure and to anticipate the biogeochemical conditions experienced by vulnerable ecosystems like coral reefs. To meaningfully predict nearshore carbonate chemistry, we must account for the complexity of the local benthic community, as well as connectivity between habitats and relevant endmember carbonate chemistry. Here, we adopt a system-scale approach to predict site-scale effects of benthic metabolism on the carbonate system of the Florida Reef Tract (FRT). We utilize bimonthly carbonate chemistry data from ten cross-shelf transects spanning 250 km of the FRT to model changes in dissolved inorganic carbon (DIC) and total alkalinity (TA). Benthic habitat maps were used to broadly classify communities known to impact carbonate chemistry. A SLIM 2D hydrodynamic model with mesh resolution reaching 100 m over reefs and along the coastline was used to determine the relevant water mass histories and identify the upstream benthic communities shaping local carbonate chemistry. These historical metabolic footprints, or “flowsheds”, were used to build predictive models of the change in DIC and TA at each station. The best predictive models included the chemical impacts of benthic ecosystem metabolism, as defined by water mass trajectories, weighted endmember chemistry, volume, time, and other environmental parameters (light, temperature, salinity, chlorophyll-a, and nitrate). Considering water mass for 5 days prior to sample collection yielded the highest model skill.</p></div>","PeriodicalId":8102,"journal":{"name":"Aquatic Geochemistry","volume":"31 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10498-025-09438-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oligocene and Late Miocene-Pleistocene Elemental Records of Sedimentary Provenance, Basin Evolution, Chemical Weathering and Depositional Environment from the Northern South China Sea","authors":"P. Duraimaran,&nbsp;Devleena Mani,&nbsp;Dhananjai K. Pandey,&nbsp;A. Keshav Krishna","doi":"10.1007/s10498-024-09437-4","DOIUrl":"10.1007/s10498-024-09437-4","url":null,"abstract":"<div><p>The elemental records of the sediments from two IODP cores, U1501C (Oligocene and Late Miocene-Pliocene) and U1499A (Pliocene to Pleistocene) in the Northern South China Sea have been studied here to understand the variability in the sedimentary provenance and depositional environment, which are impacted by the tectonic and East Asian monsoon evolution through time. The major oxides and REE abundances indicate the sources of sediment influx to be significantly from the South China, North and North eastern parts of SCS since ~ 33 Ma, and prominent contributions from Pearl River, Hainan Island and Taiwanese rivers since ~8.3 Ma. The depositional redox is corroborated by the Ce anomaly and trace element proxies such as U/Th, V/Cr, V/(V + Ni), and Ni/Co. The chemical weathering intensity, evidenced by the Chemical Index of Alteration and major elements (Ca/Ti, Na/Ti, Al/K, Al/Ti, AL/Na), and La/Sm ratios, was observed to be low. Early Oligocene witnessed the deposition of littoral sediments, caused by the initial rifting and spreading in SCS. During the late Miocene (~ 8.3 Ma), sedimentation was influenced by the prevailing arid climate and intensification of East Asian Winter monsoon (EAWM). Since Pliocene–Pleistocene (~ 5.3 Ma−0.01 Ma), the sediment deposition remained unaffected by tectonism, but was majorly influenced by the intensification of EAWM and the glacial-interglacial cycles.</p></div>","PeriodicalId":8102,"journal":{"name":"Aquatic Geochemistry","volume":"31 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142925562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent changes in physical and biogeochemical state in residual basins of the Aral Sea","authors":"Natalia Yu. Andrulionis,&nbsp;Alexander S. Izhitskiy,&nbsp;Alexander S. Savvichev,&nbsp;Peter O. Zavialov","doi":"10.1007/s10498-024-09436-5","DOIUrl":"10.1007/s10498-024-09436-5","url":null,"abstract":"<div><p>The Aral Sea is well known throughout the World as an inland lake disappearing due to unsustainable use of natural water resources for economic purposes. The degradation of the sea led to irreversible transformations of the ecosystem in the region and other destructive consequences. It has become a natural laboratory, allowing the study of the morphometric transformation of the properties of its waters under the influence of environmental conditions. This article is devoted to the study of temporal variability in the biogeochemical and physical characteristics with an emphasis on the metamorphosis of the ionic composition of the Aral waters and its individual water bodies (i.e., the Large and Small Aral Seas, Lakes Chernyshev and Tshchebas) in the period 1873 − 2022 based on newly obtained (2021 and 2022) and literature data. Periods of hydrochemical evolution are identified reflecting the order of salt deposition lasting for several years. The latest of these periods lasted from 2014 to 2022 waters in the salinity range of 126˗244 ‰. It was characterized by the <span>({text{SO}}_{4}^{2-})</span>/Clˉ ratio of 0.31, while Mg²⁺/Na⁺ 0.34 and Ca²⁺/Na⁺ 0.02. Migration curves for the Aral Sea's water reflect the influence of a number of regional features on the formation of the ion-salt composition of waters was constructed. The biogeochemical features of the final stage of the Aral Sea are discussed using the example of the former bay and now lake Chernyshev. Its salinity of ~ 243 ‰ and the microbial community inhabiting it, along with the ionic composition, determines the properties of its waters.</p></div>","PeriodicalId":8102,"journal":{"name":"Aquatic Geochemistry","volume":"31 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142906100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biogeochemical and environmental characteristics of sediment humic acids in lakes of European taiga zone","authors":"Alina V. Guzeva,&nbsp;Zakhar I. Slukovskii","doi":"10.1007/s10498-024-09435-6","DOIUrl":"10.1007/s10498-024-09435-6","url":null,"abstract":"<div><p>This study investigates the biogeochemical and environmental characteristics of humic acids isolated from sediment samples of five lakes located in the European taiga zone. Sediment samples were analyzed using advanced techniques, including CHN analysis, solid-state 13C-NMR spectroscopy, and FTIR spectroscopy. The results show that the humic acids from the studied lake sediments exhibit lower degrees of aromaticity compared to those in terrestrial soils, indicating a lower degree of humification under aquatic reducing conditions. This suggests that aquatic environments favor the preservation of relatively labile organic compounds. The affinity of metals to form complexes with the humic acids varied among the lakes, with metals such as Co, Pb, V, and Sb forming stable chelate complexes, while Mn and Cd exhibited higher geochemical mobility. The findings provide insight into the role of humic substances in controlling the distribution and mobility of metals in aquatic ecosystems, contributing to our understanding of biogeochemical processes in taiga lake environments.</p></div>","PeriodicalId":8102,"journal":{"name":"Aquatic Geochemistry","volume":"31 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142906105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantification of Post-monsoon CO2 Degassing Flux from the Headwaters of the Ganga River: Emphasis on Weathering Pattern of the Basin","authors":"Nikitasha Chatterjee,&nbsp;Anil K. Gupta,&nbsp;Sameer K. Tiwari,&nbsp;Kuppusamy Mohan,&nbsp;Kanishak Sharma","doi":"10.1007/s10498-024-09434-7","DOIUrl":"10.1007/s10498-024-09434-7","url":null,"abstract":"<div><p>Research on the carbon-cycling process in high-altitude streams is crucial for understanding whether carbon acts as a source or sink for the atmosphere during present times of global climate change. In this study, we have quantified the post-monsoon CO₂ flux (FCO₂) from the Bhagirathi and Alaknanda rivers, which are two pristine watersheds in the Upper Ganga Basin in India with the help of analytical hydrochemistry and PHREEQC v.3.7.3 software. Our results show FCO₂ values of 88 gCO₂m⁻²d⁻¹ and 175 gCO₂m⁻²d⁻¹ from the upstream reaches of Bhagirathi and Alaknanda Rivers, respectively, which is significantly greater than the fluxes observed in the downstream reaches (18 gCO₂m⁻²d⁻¹ and 4.1 gCO₂m⁻²d⁻¹, respectively). This difference in FCO₂ is attributed to the major variation in gas transfer velocity (kCO₂) along elevation, with the upstream section exhibiting approximately eight times higher kCO₂ than the downstream section. The steeper bed slope leads to increased turbulence and energy dissipation at higher altitudes, enhancing the kCO₂ values. The partial pressure of CO₂ in the rivers was found to be approximately 2.5 times greater than the atmosphere. Our findings suggest that form-drag turbulence instead of bed friction, prevalent in the high-gradient reaches of the rivers, is the main driver of CO₂ degassing into the atmosphere. This study shows that Ganga headwater streams are sources of CO₂ to the atmosphere and underscores the need for monitoring other Himalayan streams for CO₂ flux.</p></div>","PeriodicalId":8102,"journal":{"name":"Aquatic Geochemistry","volume":"30 4","pages":"287 - 315"},"PeriodicalIF":1.7,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142636775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}