Carbon Sequestration Beneath the Active Zone of the Rhizosphere: Insights from Extremophile Ecosystems
EMSL Project ID
49675
Abstract
To better understand the ultimate fate of carbon sequestered in the subsurface, we are studying carbon sequestration mechanisms in mineralizing extremophile environments. Such ecosystems provide an analog for studying the types of processes that occur in subsurface regimes beneath the active rhizosphere. We seek to elucidate how organic remains (aka necromass) are sequestered in association with secondary precipitates that form in soils. EMSL scientists are leading efforts to elucidate carbon cycling from the rhizosphere to the atmosphere through plant-microbial-fungal interactions. This project will explore the processes that lead to carbon sequestration in precipitates that form beneath the rhizosphere. A combination of chemical imaging techniques that are available at EMSL will be essential for the success of this project.
Project Details
Start Date
2016-11-23
End Date
2019-09-30
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members
Related Publications
Sanchez-Garcia L., M.A. Fernandez-Martinez, M. GarcÃa-Villadangos, Y. Blanco, S.L. Cady, N.W. Hinman, and M.E. Bowden, et al. 2019. "Microbial biomarker transition in High-Altitude Sinter Mounds from El Tatio (Chile) through different stages of hydrothermal activity." Frontiers in Microbiology 9. PNNL-SA-138900. doi:10.3389/fmicb.2018.03350
Siljestrom S ,Parenteau M N,Jahnke L L,Cady S L 2017. "A comparative ToF-SIMS and GC–MS analysis of phototrophic communities collected from an alkaline silica-depositing hot spring" Organic Geochemistry 109():14-30. 10.1016/j.orggeochem.2017.03.009