Hydrochemistry and its controlling factors of rivers in the source region of the Yangtze River on the Tibetan Plateau

Jiang, Liguang; Yao, Zhijun; Liu, Zhaofei; Wang, Rui; Wu, Shanshan

doi:10.1016/j.gexplo.2015.04.009

Cited by 113 publications

(66 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Evidence showed that the lack of correlations between Cland SO 4 2can be the signature of sulfate oxidation (Galy & France-Lanord, 1999;Hren et al, 2007). However, Cland SO 4 2showed significant positive correlations in YRSR water chemistry data from this study (R 2 = 0.58, p < 0.001), Qu et al (2019) data set (R 2 = 0.53, p = 0.001), and Jiang et al (2015) data set (R 2 = 0.57, p < 0.001). Besides, pyrite oxidation can lead to high Si and SO 4 2but low bicarbonate concentrations (Huh, Panteleyev, et al, 1998;Huh, Tsoi, et al, 1998).…”

Section: Water Resources Researchmentioning

confidence: 74%

“…The covariance of temperature, thaw depth, and discharge during the thawed period may enhance silicate weathering; this can be supported by the results of Si increasing with thaw depth, soil temperature, soil moisture, and discharge ( Figure S5). When the active layer fully thawed in the summer, microbial activity increased as This study Qu et al, 2015Zhao et al, 2019Jiang et al, 2015Huang et al, 2009 Note. Each data set was modeled with same end-members as shown in Table S1 using MixSIAR.…”

Section: Interpretation Of Dic and δ 13 C-dic Variationsmentioning

confidence: 91%

“…based on a Yangtze River source region water chemistry data set fromJiang et al (2015).10.1029/2019WR025343Water Resources Research explored with linear regressions. The statistical analyses and figures were performed using the R language (R Core Team, 2019).…”

mentioning

confidence: 99%

“…Piper diagram displaying river water chemistry of the Yangtze River source region. Data is from this study,Jiang et al (2015),Qu et al (2019), andZhao et al (2019). Cl -River source region water chemistry data set fromJiang et al (2015).…”

mentioning

confidence: 99%

“…Data is from this study,Jiang et al (2015),Qu et al (2019), andZhao et al (2019). Cl -River source region water chemistry data set fromJiang et al (2015). The central diamond graph shows six subregions of different hydrogeochemical facies(Khadka & Ramanathan, 2012): (1) Ca-HCO 3 type; (2) Na-Cl type; (3) Mixed Ca-Mg-Cl type; (4) Mixed Ca-Na-HCO 3 type; (5) Ca-Cl type; and (6) Na-HCO 3 type.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Spatiotemporal Variability and Sources of DIC in Permafrost Catchments of the Yangtze River Source Region: Insights From Stable Carbon Isotope and Water Chemistry

Song

Wang

Mao

et al. 2020

Water Resources Research

View full text Add to dashboard Cite

Riverine dissolved inorganic carbon (DIC) exports play a central role in the regional and global carbon cycles. Here, we investigated the spatiotemporal variability and sources of DIC in eight catchments in the Yangtze River source region (YRSR) with variable permafrost coverage and seasonally thawed active layers. The YRSR catchments are DIC-rich (averagely 25 mg C L −1 ) and export 3.51 g m −2 yr −1 of DIC. The seasonal changes of temperature, active layer, flow path, and discharge can alter DIC and stable carbon isotope of DIC (δ 13 C-DIC). The most depleted δ 13 C-DIC values were found in the thawed period, suggesting the soil-respired CO 2 during the active layer thaw period can promote bicarbonate production via H 2 CO 3 weathering. Spatially, δ 13 C-DIC values increased downstream, likely due to CO 2 outgassing and changed permafrost coverage and runoff. We found that evaporite dissolution and silicate weathering in the seasonally thawed active layer contributed 44.2% and 30.9% of stream HCO 3 -, respectively, while groundwater and rainwater contributed 16.7% and 7.3% of HCO 3 -, respectively. Pure carbonate rock weathering played a negligible role in DIC production. These results were compatible with δ 13 C-DIC source approximation results. Silicate weathering increased from initial thaw to thawed period, reflecting the active layer thaw and subsequent hydrology change impacts. Silicate weathering consumed 1.25 × 10 10 mol of CO 2 annually, while evaporite dissolution may produce CO 2 and neutralize this CO 2 sink. This study provides new understanding of the riverine DIC export processes of the YRSR. As permafrost degrades, the quantity, sources, and sinks of riverine DIC may also change spatiotemporally.

show abstract

Section: Water Resources Researchmentioning

confidence: 74%

Section: Interpretation Of Dic and δ 13 C-dic Variationsmentioning

confidence: 91%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Spatiotemporal Variability and Sources of DIC in Permafrost Catchments of the Yangtze River Source Region: Insights From Stable Carbon Isotope and Water Chemistry

Song

Wang

Mao

et al. 2020

Water Resources Research

View full text Add to dashboard Cite

show abstract

What controls the hydrochemical compositions of mountainous river water in a glacierized catchment?

Shi,

Kong,

et al. 2023

Hydrological Processes

View full text Add to dashboard Cite

Chemical weathering processes has become a growing issue in research on carbon cycling, however, mineral weathering by sulfuric acid and carbonic acid and its possible impacts on carbon cycle are yet unknown over the typical glacial catchment. To investigate the mechanisms of mineral weathering processes and its influence, the spatial–temporal variations of the major ions in Mingyong River, a glacier‐originated river located on the southeastern edge of the Qinghai‐Tibetan Plateau, were investigated. The seasonal and spatial variations in river solutes were resulted from the hydrological conditions and different mineral weathering rates. The results showed that the major ion compositions of the river waters were characterized by the dominance of Ca2+, Mg2+, HCO3−, with a significantly rich in SO42−. A systematic increase in ionic concentrations (apart from NH4+ and NO3−) was observed in the river water from non‐monsoon to monsoon season as well as from upstream to downstream. Piper diagram results showed 100% (upstream‐midstream) and 72.5% (downstream) contributions to Ca‐HCO3 type, respectively, indicating that a dominated carbonate weathering to the river chemistry. The (Ca2++Mg2+)/HCO3− against (SO42−/HCO3−) scatter suggested that sulfuric and carbonic acid are responsible for chemical weathering. An increased contributions of sulfuric acid from upstream (43%) to downstream (87.3%) on the (Ca2++Mg2+) and from upstream (29.6%) to downstream (88.3%) on HCO3− using the stoichiometry analysis during the monsoon season. Contrarily, H2SO4‐related dissolution (>65%) processes controlled the carbonate weathering during the non‐monsoon season, which indicated that sulfuric acid played a significant part in the process of rock dissolution that intensifies weathering. The effects of accelerated weathering on drinking and irrigation suitability suggested that the Mingyong River water is subject to a salinity hazard. This research demonstrates that the weathering of catchments involving sulfuric acid has the potential to alter carbon cycle and should be considered in global carbon cycle models.

show abstract

Preliminary Research on Hydrogen and Oxygen Isotope Characteristics of River Waters in the Source Region of the Yangtze River and the Lancang River

Zhao¹,

Deng²,

Liu³

et al. 2020

Springer Proceedings in Earth and Environmental Sciences

View full text Add to dashboard Cite

Hydrochemistry and its controlling factors of rivers in the source region of the Yangtze River on the Tibetan Plateau

Cited by 113 publications

References 37 publications

Spatiotemporal Variability and Sources of DIC in Permafrost Catchments of the Yangtze River Source Region: Insights From Stable Carbon Isotope and Water Chemistry

Spatiotemporal Variability and Sources of DIC in Permafrost Catchments of the Yangtze River Source Region: Insights From Stable Carbon Isotope and Water Chemistry

What controls the hydrochemical compositions of mountainous river water in a glacierized catchment?

Preliminary Research on Hydrogen and Oxygen Isotope Characteristics of River Waters in the Source Region of the Yangtze River and the Lancang River

Contact Info

Product

Resources

About