ArticlePloS one2018
Dissolved organic carbon in glaciers of the southeastern Tibetan Plateau: Insights into concentrations and possible sources.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 28 citations in OpenAlex.
- Air-Mass Influence, Radiation, and Melt-Season Dynamics Jointly Shape Dissolved Organic Matter Composition and Radiocarbon Age in Glacier Outflows on the Tibetan Plateau.Environmental science & technology · 2026Article
- Smoke from regional wildfires alters lake ecology.Scientific reports · 2021Article
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Authors and funding
13 authors at 4 institutions in 2 countries.
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Abstract
Dissolved organic carbon (DOC) released from glaciers has an important role in the biogeochemistry of glacial ecosystems. This study focuses on DOC from glaciers of the southeastern Tibetan Plateau, where glaciers are experiencing rapid shrinkage. We found that concentrations of DOC in snowpits (0.16±0.054 μg g-1), aged snow (0.16±0.048 μg g-1), and bare ice (0.18±0.082 μg g-1) were similar across the southeastern Tibetan Plateau, but were slightly lower than those in other glaciers on the Tibetan Plateau. Vertical variations of DOC, particulate organic carbon, black carbon, and total nitrate in snowpit showed no systematic variations in the studied glaciers, with high values of DOC occurring in the ice or dusty layers. We estimated the export of DOC and particulate organic carbon from glaciers to be 1.96±0.66 Gg yr-1 and 5.88±2.15 Gg yr-1 in this region, respectively, indicating that organic carbon released from glacier meltwater may be affecting downstream ecosystems. Potential sources of the air masses arriving at the southeastern Tibetan glaciers include South Asia, Central Asia, Middle East, and northwest China. Emissions from biomass burning of South Asia played an important role in the deposition of DOC to the glacier, which can be evidenced by backward trajectories and fire spot distributions from MODIS and CALIPSO images. Our findings suggest that anthropogenic aerosols contribute abundant DOC to glaciers on the southeastern Tibetan Plateau. The pronounced rate of glacial melting in the region may be delivering increased quantities of relic DOC to downstream rivers.
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