Summary
This review article synthesises current knowledge and methodological approaches for characterising belowground components of bioenergy cropping systems, emphasising that root and microbial research is essential for optimising both feedstock production and soil health outcomes. Drawing on a workshop hosted by the USDOE Bioenergy Research Centers, the authors outline standardised phenotyping and data interoperability approaches (aligned with F.A.I.R. principles) needed to advance root, soil, and microbial research in support of sustainable bioenergy production on marginal lands.
Regional applicability
This paper is United States-focused, reflecting U.S. bioenergy crops and the USDOE research agenda. Transferability to United Kingdom conditions would require adaptation to UK bioenergy crop species, climate, and soil types; however, the standardisation frameworks and phenotyping methodologies proposed may have broader applicability to European bioenergy and regenerative agriculture programmes.
Key measures
Root system properties, root chemistry, exudation patterns, microbial community composition and function, soil carbon sequestration, greenhouse gas fluxes
Outcomes reported
The paper outlines methodological challenges and opportunities for phenotyping roots and soil microbiomes in bioenergy cropping systems, and presents a roadmap for standardisation of measurement approaches. It provides background on root system properties of major U.S. bioenergy crops and discusses the roles of root chemistry, exudation, and microbial interactions on sustainability.
Topic tags
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