A letters published in Science indicated the sediment in rivers originated in the Tibetan plateau increased:

Rivers that originate in the Tibetan Plateau supply water to almost 2 billion people. They have also historically contributed about one-third of global sediment inflows to the ocean. However, in the past 35 year, more than 60% of these rives have experienced substantial increases in the amount of sediment that they carry downstream. This sediment surge threatens ecosystems, compromises landscape stability, and endangers infrastructure, especially dams. Urgent and strategic action is necessary to address sediment flow in the Tibetan region.

Over the past 5 decades, temperatures on the Tibetan Plateau have risen by 0.23℃ per decade, double the global average. Ice and snow have melted, and permafrost has been degraded. These changes, coupled with rain-induced flood peaks, have accelerated soil erosion and increased riverine sediment loads.

Increased sediment flows affect water clarity as well as aquatic life and regional ecosystems. Combating rising sediment loads on the Tibetan Plateau requires a comprehensive strategy and international cooperation.

For more details, please go to:

https://www.science.org/doi/10.1126/science.ado7997