Articles | Volume 20, issue 14
https://doi.org/10.5194/bg-20-3011-2023
https://doi.org/10.5194/bg-20-3011-2023
Research article
 | 
27 Jul 2023
Research article |  | 27 Jul 2023

Complex dissolved organic matter (DOM) on the roof of the world – Tibetan DOM molecular characteristics indicate sources, land use effects, and processing along the fluvial–limnic continuum

Philipp Maurischat, Michael Seidel, Thorsten Dittmar, and Georg Guggenberger

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Short summary
Production and consumption of organic matter (OM) on the Tibetan Plateau are important for this sensitive ecosystem. We investigated the chemical composition of dissolved organic matter and the most mobile fraction of OM in glaciers, wetlands, and groundwater as well as in the rivers and a large terminal lake. Our data show that the sources differ in the molecular composition of OM, that the stream is influenced by agriculture, and that the lake strongly changes the inflowing organic matter.
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