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Browsing Research Data by Author "Cotrufo, Francesca"

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    C and N dynamics between grass litter, soil and the atmosphere determined using isotope tracing
    (Colorado State University. Libraries, 2015) Cotrufo, Francesca; Soong, Jennifer
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    Hydro-biogeochemistry transport of black carbon project-data
    (Colorado State University. Libraries, 2015) Cotrufo, Francesca
    This data package was produced by researchers working on the Hyrdo-Biogeochemistry Transport of Black Carbon Project. This project was supported by National Science Foundation and the Water Institute at Colorado State University. This data package includes a tab-delimited data table and an accompanying tab-delimited file (file name ending in "_var') that denotes header definitions and data types for each column in the data table. Detailed metadata also are contained within an Ecological Metadata Language document (i.e. XML). Black carbon (BC) is a ubiquitous component of the carbon cycle, yet controls on its landscape-level distribution, including the relative importance of mechanisms for transport across the terrestrial aquatic interface, are relatively unknown. In June 2012, the High Park Fire (HPF) burned 353 km2 of land in the Cache la Poudre (CLP) watershed just northwest of Fort Collins, CO. Following independent efforts of our group to quantify the effects of the HPF on biogeochemical pools and landscape geomorphology, we aimed to synthesize our respective datasets with two main objectives: 1. determine and relate BC content in different parts of the watershed including litter, soils, river bank sediments and dissolved and particulate organic materials in river water, 2. develop a conceptual framework for mechanisms that contribute to BC export from the CLP on short and long-term time scales. Using the benzene polycarboxylic acid (BPCA) method as a molecular proxy for BC concentrations, we found that the majority of BC deposited on the landscape by the HPF was located in the litter, coarse plant fraction of river bank sediments, and DOC, suggesting that BC mobilized on the landscape is transported downstream through the river network. We also participated in a comparative study to investigate differences between the BPCA method and stable polycyclic aromatic carbon and benzene polycarboxylic acid method. The results of the comparative analysis are included in this data table and this work was supported by an NSF grant for Catalyzing New International Collaborations.