Cited by 71Soil Carbon and Nitrogen DynamicsBioenergy crop production and managementSoil erosion and sediment transport

Early accumulation of active fraction soil carbon in newly established cellulosic biofuel systems

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Sprunger, Christine D., Philip Robertson, G.·2018·Geoderma

Abstract

We examined relative changes in soil C pools shortly after the establishment of six perennial and two annual bioenergy cropping systems that differed in diversity (monoculture vs. polyculture). Perennial systems included two monocultures (switchgrass, Panicum virgatum ; and miscanthus, Miscanthus × giganteus ) and four polycultures including hybrid poplar ( Populus sp.) + herbaceous understory; mixed native grasses, successional vegetation, and restored prairie. Two annual systems included no-till continuous corn ( Zea mays ) and rotational corn (corn-soybean ( Glycine max )-canola ( Brassica napus )). Each crop was planted in a full factorial design at both a moderate fertility Alfisol and a high fertility Mollisol site. Relative differences in active, slow, and passive C pools in surface soils, where C changes are most likely to be detected early, were evaluated with 322-day laboratory incubations followed by acid hydrolysis to infer different pools from exponential decay curves. Five years post-establishment, active C pools under perennial polycultures at the Alfisol site were up to twice those under annual and perennial monocultures, and followed the order hybrid poplars (696 ± 216 μg C g − 1 soil, n = 5 replicate blocks) ≈ native grasses (656 ± 155) ≈ restored prairie (638 ± 44) > early successional (500 ± 54) ≫ continuous corn (237 ± 68) ≈ rotational corn (180 ± n.a.). Active C pools in perennial monocultures were similar to those in continuous corn: switchgrass (274 ±…

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Crossref · 10.1016/j.geoderma.2017.11.040

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Authors
Sprunger, C. D., & Philip Robertson, G.
Affiliations
Michigan State University (US)
Corresponding author
Sprunger, Christine D.
Venue
Geoderma
Publisher
Elsevier BV
Published
2018-05
Volume
318
Pages
42-51
ISSN
0016-7061 (ISSN-L)
OpenAlex
W2781763066
Cited by
71
References
13
Citations by year
2026: 6 · 2025: 12 · 2024: 10 · 2023: 5 · 2022: 9 · 2021: 11 · 2020: 7 · 2019: 8 · 2018: 3
FWCI
6.78
Type
journal article
Language
en
Open access
Locations
  • Geoderma (publishedVersion, cc-by-nc-nd)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
AgBioResearch, Michigan State University
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Bioenergy crop production and management
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil erosion and sediment transport
Keywords
soil organic carbon, active carbon pool, bioenergy cropping systems, switchgrass, Miscanthus, hybrid poplar, restored prairie, continuous corn, crop rotation, soil carbon accumulation, soil fertility, Alfisol, Mollisols, soil incubation, acid hydrolysis, carbon sequestration

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