Gabriela Velasquez

TL;DR: In this paper, the effect of different grassland management practices in terms of grazing regime, fertilization, and species choice was highlighted and their consequences for SOM dynamics and element cycling were investigated.

TL;DR: In this paper, the authors present the first volcanic gas compositional time-series taken prior to a paroxysmal eruption of Villarrica volcano (Chile) and demonstrate a temporal evolution of volcanic plume composition, from low CO2/SO2 ratios (0.65-2.7) during November 2014-January 2015 to CO 2/SO 2 ratios up to ≈ 9 then after.

TL;DR: In this article, the authors compare UAS-derived gas timeseries to simultaneous crater rim multi-GAS data and UV camera imagery to investigate early plume evolution, and observe good agreement between time-averaged molar gas ratios obtained from simultaneous UAS and ground-based multiGAS acquisitions, and conclude that UAS measurements made in the young, less diluted plume reveal additional short-term periodic structure that reflects active degassing through discrete, audible gas exhalations.

TL;DR: In this article, high-frequency SO2 fluxes, plume composition, thermal emissions and aerial video footage from the Villarrica lava lake were used to determine the mechanism sustaining its activity.

TL;DR: In this paper, the authors used 31P NMR spectroscopy to characterize residual P following Hedley fractionation in a range of Andisols under grazed pasture by 31P nuclear magnetic resonance (NMR).