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Using iso-scapes to address within-source variability in compound specific stable isotope sediment source apportionmentsNARA Subscribed
Purpose Accelerated soil erosion has global environmental and economic consequences. Sediment fingerprinting using compound-specific stable isotope (CSSI) tracers can enhance our understanding of land-use specific erosion processes. Accurate source representation is critical, yet CSSI sediment fingerprinting may underestimate source variability due to sampling constraints using CSSI tracers. This study assesses the efficacy of...
Purpose Soil erosion models are essential to improving sediment management strategies. Sediment source fingerprinting is used to help validate erosion models. Fingerprinting sediment sources with organic isotopic tracers faces challenges from aquatic sources and co-linearity. To address these complexities, integrating another land-use-specific tracer is essential. Suess corrections incorporating multiple mean-residence-times a...
Less is more? A novel method for identifying and evaluating non-informative tracers in sediment source mixing modelsNARA Subscribed
Purpose Accelerated soil erosion poses a global hazard to soil health. Understanding soil and sediment behaviour through sediment fingerprinting enables the monitoring and identification of areas with high sediment delivery. Land-use specific sediment source apportionment is increasingly determined using the Bayesian mixing model MixSIAR with compound-specific stable isotopes (CSSI). Here, we investigate CSSIs of fatty acid (F...
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