Data from: Microbial carbon use efficiency and soil organic carbon stocks across an elevational gradient in the Peruvian Andes

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dc.contributor.affiliationUniversity of Helsinki - Martin Vivanco, Angela Katherine
dc.contributor.affiliationHäme University of Applied Sciences - Sietiö, Outi-Maaria
dc.contributor.affiliationGoethe University Frankfurt - Meyer, Nele
dc.contributor.affiliationUtrecht University - Mganga, Kevin
dc.contributor.affiliationUniversity of North Carolina - Kalu, Subin
dc.contributor.affiliationNatural Resources Institute Finland - Adamczyk, Sylwia
dc.contributor.affiliationUniversidad Nacional Agraria La Molina* - Celis, Susan
dc.contributor.affiliationUniversidad Nacional Agraria La Molina* - Alegre, Julio
dc.contributor.affiliationUniversity of Helsinki - Karhu, Kristiina
dc.contributor.authorMartin Vivanco, Angela Katherine
dc.contributor.authorSietiö, Outi-Maaria
dc.contributor.authorMeyer, Nele
dc.contributor.authorMganga, Kevin
dc.contributor.authorKalu, Subin
dc.contributor.authorAdamczyk, Sylwia
dc.contributor.authorCelis, Susan
dc.contributor.authorAlegre, Julio
dc.contributor.authorKarhu, Kristiina
dc.date.accessioned2025-03-24T15:17:04Z
dc.date.issued2023-12-18
dc.date.issued2023-12-18
dc.descriptionSoils of mountain ecosystems are one of the most vulnerable ecosystems to climate change, while the ecosystem services they produce are significant and currently at risk. High altitude soils contain high C stocks, but due to difficult access to sites these areas are understudied. Moreover, how the C and N cycling is changing in response to climate change in these ecosystems, is still unclear. Microbial carbon use efficiency (CUE) and its dependency on the environmental constraints along the altitudinal gradients is one important unknown factor. Here we present results from an altitudinal gradient study (3500 to 4500 m a.s.l.) from a Polylepis forest in the Peruvian Andes. We measured the soil organic carbon (SOC) stocks and microbial metabolic CUE by 13C glucose tracing and microbial resource use efficiency (CUEC:N) based on enzyme activity measurements. We expected to find an increase in SOC stock, microbial nutrient limitations, and lower CUE with elevation. SOC stocks depended on soil development and followed a unimodal curve that peaks at 4000 m in two of the three studied valleys. Neither 13CUE nor CUEC:N changed significantly with altitude. Soil C:N ratio, β-glucosidase, chitinase, and phosphatase enzyme activities increased with elevation, but peroxidase activity decreased with elevation. We suggest that more labile organic matter left at high elevation could compensate for the increasing nutrient limitation at high elevation, resulting in no noticeable change in CUE with elevation.
dc.identifierhttps://doi.org/10.5061/dryad.h70rxwdqs
dc.identifier.urihttps://hydatakatalogi-test-24.it.helsinki.fi/handle/123456789/9929
dc.rightsOpen
dc.rights.licensecc-zero
dc.subjectsoil organic carbon
dc.subjectCarbon use efficiency
dc.subjectExoenzyme
dc.subjectStoichiometric modelling
dc.subjectElevational gradient
dc.titleData from: Microbial carbon use efficiency and soil organic carbon stocks across an elevational gradient in the Peruvian Andes
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