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Recharge pattern of supra-permafrost water under climate warming: evidence from stable isotopes
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DOI：10.1016/j.geoderma.2026.117942.png)
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Abstract
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• Precipitation dominated SPW recharge from June to September, contributing 52%–66%. • Ground ice contribution peaked in July, exceeding 50% at some high elevation sites. • Glacier and snow meltwater contribution reached about 36% at high elevations. • SPW source composition showed clear seasonal shifts and elevation dependent patterns.
Keywords:
The Source Region of the Three Rivers
Supra-permafrost water
Stable isotopes
Recharge sources
End-member mixing analysis
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