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Using stable isotopes to determine sources of eroded carbon in low-order Sierra Nevada catchments

Using stable isotopes to determine sources of eroded carbon in low-order Sierra Nevada catchments. Emma McCorkle UC Merced. Progress. Sampled in P303 and B203 (soils, sediment, & litter ) 6 transects, 3 positions (crest, backslope , deposition)

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Using stable isotopes to determine sources of eroded carbon in low-order Sierra Nevada catchments

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  1. Using stable isotopes to determine sources of eroded carbon in low-order Sierra Nevada catchments Emma McCorkle UC Merced

  2. Progress • Sampled in P303 and B203 (soils, sediment, & litter) • 6 transects, 3 positions (crest, backslope, deposition) • Run P303 samples for isotopic analysis (δ13C & δ15N) P303 B203 Crest Backslope Deposition Stream

  3. Results so far

  4. Future • Sample the stream bank in both watersheds • Run the remaining samples for δ13C & δ15N • Run a subset for radiocarbon to find residence times • Lots of data analysis…

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