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Cited by 56Bioenergy crop production and managementSoil Carbon and Nitrogen DynamicsSoil erosion and sediment transport

Carbon Sequestration under Irrigated Switchgrass ( Panicum virgatum L.) Production

Collins, H.P., Smith, J.L., Fransen, S., Alva, A.K., Kruger, C.E., Granatstein, D.M.·2010·Soil Science Society of America Journal
DOI 10.2136/sssaj2010.0020
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Abstract

Perennial herbaceous crops such as switchgrass are important sources of cellulosic biomass for the developing bioenergy industry. Assessments of how much C will be lost or sequestered into soil and the turnover rates of that C are needed to assist producers and policymakers in determining the long‐term sustainability of biomass production. We used the natural 13 C abundance of soils to calculate the quantity and turnover of C 4 −C inputs in irrigated fields cropped to switchgrass monocultures. Soil profile root biomass produced after three seasons averaged 3.9 Mg C ha −1 m −1 Five years of cropping showed a 1200 kg ha −1 increase in soil organic C (SOC) in the 0‐ to 15‐cm depth increment, with no change below 15 cm. The surface 15 cm of soil cropped to ‘Kanlow’ and ‘Shawnee’ had a δ 13 C enrichment of 3‰ above the native uncultivated soil, with 3.6‰ for ‘Cave in Rock,’ with an average 2‰ enrichment compared with the soil collected before switchgrass establishment. Enrichment in the 30‐ to 60‐ and 60‐ to 90‐cm depths averaged 1.7 and 0.9‰, respectively. The amount of soil profile C 4 –C determined by δ 13 C analysis showed a greater C input than determined by the difference in total C mass between the uncultivated native and cropped soils. The average accrual rate of C 4 –SOC was estimated at 1.0 Mg ha −1 yr −1 Estimates of the mean residence time of the C 3 −C under the irrigated C 4 monocultures of switchgrass were >60 yr in the 0‐ to15‐cm and 30 to 55 yr in the 15‐ to 30‐cm depth increments. On average, 24% of SOC in the 0‐ to 15‐cm depth was derived from C 4 cropping.

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Crossref · 10.2136/sssaj2010.0020

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  • Little information was available on parameters affecting soil organic carbon accumulation in slowly decomposable or recalcitrant forms.

    “Although some papers recorded specific fractions of SOC [11, 45, 46], little information was available on parameters affecting SOC accumulation in slowly decomposable or ‘recalcitrant’ forms [25, 35, 47].”

    From Carbon Sequestration by Perennial Energy Crops: Is the Jury Still Out? (2015) · cites this paper as [47]

  • Under switchgrass, a large number of studies showed sequestration rates that were similar but higher on average.

    “Under switchgrass, a large number of studies [8, 9, 47, 57, 75, 77, 137, 138] showed sequestration rates, which were similar (Table 3) but higher on average (Fig. 4).”

    From Carbon Sequestration by Perennial Energy Crops: Is the Jury Still Out? (2015) · cites this paper as [47]

  • Carbon inputs originate from and feed into pools of different stability, and initially carbon is stored as particulate organic matter, which is a relatively slow soil organic carbon pool under switchgrass.

    “C inputs originate from and feed into pools of different stability [45, 141], and initially, C is stored as particulate organic matter (POM) [139], which is a relatively slow SOC pool under switchgrass [25, 47].”

    From Carbon Sequestration by Perennial Energy Crops: Is the Jury Still Out? (2015) · cites this paper as [47]

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Authors
Collins, H. P., Smith, J. L., Fransen, S., Alva, A. K., Kruger, C. E., & Granatstein, D. M.
Affiliations
  • Agricultural Research Service (US)
  • Washington State University (US)
Corresponding author
Collins, H.P.
ORCID
Venue
Soil Science Society of America Journal
Publisher
Wiley
Published
2010-11
Volume
74
Issue
6
Pages
2049-2058
ISSN
  • 0361-5995 (ISSN-L)
  • 1435-0661
DOI
10.2136/sssaj2010.0020
OpenAlex
W123030833
Cited by
56
References
44
Citations by year
2025: 2 · 2024: 3 · 2023: 3 · 2021: 2 · 2020: 4 · 2019: 4 · 2018: 4 · 2017: 7 · 2016: 1 · 2015: 4 · 2014: 4 · 2013: 3 · 2012: 9
FWCI
12.21
Type
journal article
Language
en
Open access
closed
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations
Soil Science Society of America Journal (publishedVersion)
Funders
Agricultural Research Service (5402‐11000‐008‐00L)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Bioenergy crop production and management
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil erosion and sediment transport
Keywords
switchgrass, soil organic carbon sequestration, carbon residence time, soil carbon turnover, biomass feedstock, root biomass

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