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  1. No Access

    Article

    Improving understanding of soil organic matter dynamics by triangulating theories, measurements, and models

    Soil organic matter (SOM) turnover increasingly is conceptualized as a tension between accessibility to microorganisms and protection from decomposition via physical and chemical association with minerals in e...

    Joseph C. Blankinship, Asmeret Asefaw Berhe, Susan E. Crow… in Biogeochemistry (2018)

  2. No Access

    Article

    A net ecosystem carbon budget for snow dominated forested headwater catchments: linking water and carbon fluxes to critical zone carbon storage

    Climate-driven changes in carbon (C) cycling of forested ecosystems have the potential to alter long-term C sequestration and the global C balance. Prior studies have shown that C uptake and partitioning in re...

    Julia Perdrial, Paul D. Brooks, Tyson Swetnam, Kathleen A. Lohse… in Biogeochemistry (2018)

  3. No Access

    Article

    Beyond clay: towards an improved set of variables for predicting soil organic matter content

    Improved quantification of the factors controlling soil organic matter (SOM) stabilization at continental to global scales is needed to inform projections of the largest actively cycling terrestrial carbon poo...

    Craig Rasmussen, Katherine Heckman, William R. Wieder, Marco Keiluweit… in Biogeochemistry (2018)

  4. No Access

    Article

    Soil amendments alter plant biomass and soil microbial activity in a semi-desert grassland

    We tested the effects of soil biotic disturbance and biochar or woodchip amendments on plant growth, soil microbial biomass and activity, and soil physiochemical parameters in response to disturbance in a semi...

    Martha Gebhardt, Jeffrey S. Fehmi, Craig Rasmussen, Rachel E. Gallery in Plant and Soil (2017)

  5. No Access

    Article

    Soil organic carbon partitioning and Δ14C variation in desert and conifer ecosystems of southern Arizona

    Soils are significant terrestrial carbon stores yet the mechanisms that stabilize organic carbon in mineral soil remain poorly constrained. Here, we identified climate and topographic controls on soil organic ...

    Rebecca A. Lybrand, Katherine Heckman, Craig Rasmussen in Biogeochemistry (2017)

  6. No Access

    Chapter

    Soils of the Western Range and Irrigated Land Resource Region: LRR D

    The arid and semiarid of the Western Range and Irrigated Region occupy large areas across the states of Oregon, California, Idaho, Nevada, Arizona, Utah, New Mexico, Wyoming, Colorado, and Texas. These areas...

    Craig Rasmussen, Rebecca A. Lybrand, Caitlin Orem… in The Soils of the USA (2017)

  7. No Access

    Article

    The influence of goethite and gibbsite on soluble nutrient dynamics and microbial community composition

    Iron and aluminum (oxyhydr)oxides are ubiquitous in the soil environment and have the potential to strongly affect the properties of dissolved organic matter. We examined the effect of oxide surfaces on solubl...

    Katherine Heckman, Amy Welty-Bernard, Angelica Vazquez-Ortega… in Biogeochemistry (2013)

  8. No Access

    Article

    Methodological considerations for using thermal analysis in the characterization of soil organic matter

    Thermal analysis is primarily used in the field of materials science, but has a long history in the geosciences. Soil organic matter (SOM) has received a great deal of recent scientific interest because of its...

    José M. Fernández, Alain F. Plante… in Journal of Thermal Analysis and Calorimetry (2011)

  9. No Access

    Article

    An open system framework for integrating critical zone structure and function

    The “critical zone” includes the coupled earth surface systems of vegetation, regolith and groundwater that are essential to sustaining life on the planet. The function of this zone is the result of complex in...

    Craig Rasmussen, Peter A. Troch, Jon Chorover, Paul Brooks… in Biogeochemistry (2011)