Data from: Ecosystem carbon exchange on conversion of Conservation Reserve Program grasslands to annual and perennial cropping systems

Abraha, Michael; Hamilton, Stephen K.; Chen, Jiquan; Robertson, G. Philip

doi:10.5061/dryad.sc41rn3

Title: Data from: Ecosystem carbon exchange on conversion of Conservation Reserve Program grasslands to annual and perennial cropping systems

Abstract

Land use changes into and out of agricultural production may substantially influence ecosystem carbon (C) balance for many years. We examined ecosystem C balances for eight years after the conversion of 22 year-old Conservation Reserve Program (CRP) grasslands and formerly tilled agricultural fields (AGR) to annual (continuous no-till corn) and perennial (switchgrass and restored prairie) cropland. An unconverted CRP field (CRP-Ref) was maintained as a historical reference. Ecosystem C balance was assessed using adjusted net ecosystem carbon exchange (NEEadj) calculated by adding C removed in harvested biomass to NEE measured using eddy covariance method. The cumulative NEEadj of the corn and perennial systems on former CRP fields showed that these systems were a net C source to the atmosphere over the 8-year period while on former AGR fields, the perennial systems were net C sinks and the corn system near-neutral. The CRP-Ref was near neutral until a drought year when it became a net source. The corn system on the CRP field will likely reach a new lower soil C equilibrium at least 14 years after conversion but will never regain the C lost upon conversion under current no-till management with residue partially removed. On the other hand, the perennialmore »« less

Authors:

Abraha, Michael; Hamilton, Stephen K.; Chen, Jiquan; Robertson, G. Philip

Michigan State Univ., East Lansing, MI (United States)

Publication Date:: Tue Oct 15 00:00:00 EDT 2019

DOE Contract Number:: SC0018409; FC02-07ER64494

Research Org.:: Great Lakes Bioenergy Research Center (GLBRC), Madison, WI (United States); Univ. of Wisconsin, Madison, WI (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Biological and Environmental Research (BER)

Subject:: 54 ENVIRONMENTAL SCIENCES

OSTI Identifier:: 1873897

DOI:: https://doi.org/10.5061/dryad.sc41rn3

Citation Formats


                    Abraha, Michael, Hamilton, Stephen K., Chen, Jiquan, and Robertson, G. Philip. Data from: Ecosystem carbon exchange on conversion of Conservation Reserve Program grasslands to annual and perennial cropping systems.  United States: N. p., 2019. 
        Web.  doi:10.5061/dryad.sc41rn3.

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                    Abraha, Michael, Hamilton, Stephen K., Chen, Jiquan, & Robertson, G. Philip. Data from: Ecosystem carbon exchange on conversion of Conservation Reserve Program grasslands to annual and perennial cropping systems.  United States.  doi:https://doi.org/10.5061/dryad.sc41rn3

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                    Abraha, Michael, Hamilton, Stephen K., Chen, Jiquan, and Robertson, G. Philip. 2019.  
"Data from: Ecosystem carbon exchange on conversion of Conservation Reserve Program grasslands to annual and perennial cropping systems".  United States.  doi:https://doi.org/10.5061/dryad.sc41rn3.  https://www.osti.gov/servlets/purl/1873897. Pub date:Tue Oct 15 00:00:00 EDT 2019

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@article{osti_1873897,

  title        = {Data from: Ecosystem carbon exchange on conversion of Conservation Reserve Program grasslands to annual and perennial cropping systems},

  author       = {Abraha, Michael and Hamilton, Stephen K. and Chen, Jiquan and Robertson, G. Philip},

  abstractNote = {Land use changes into and out of agricultural production may substantially influence ecosystem carbon (C) balance for many years. We examined ecosystem C balances for eight years after the conversion of 22 year-old Conservation Reserve Program (CRP) grasslands and formerly tilled agricultural fields (AGR) to annual (continuous no-till corn) and perennial (switchgrass and restored prairie) cropland. An unconverted CRP field (CRP-Ref) was maintained as a historical reference. Ecosystem C balance was assessed using adjusted net ecosystem carbon exchange (NEEadj) calculated by adding C removed in harvested biomass to NEE measured using eddy covariance method. The cumulative NEEadj of the corn and perennial systems on former CRP fields showed that these systems were a net C source to the atmosphere over the 8-year period while on former AGR fields, the perennial systems were net C sinks and the corn system near-neutral. The CRP-Ref was near neutral until a drought year when it became a net source. The corn system on the CRP field will likely reach a new lower soil C equilibrium at least 14 years after conversion but will never regain the C lost upon conversion under current no-till management with residue partially removed. On the other hand, the perennial systems could fully regain in ~14 years the C lost following conversion. The cumulative NEEadj of the corn systems exhibited a higher C emission than did the perennial systems within the same land use histories, reflecting the dominant role of crop type and management in agricultural ecosystem C balance. Results suggest that converting croplands to grasslands results in immediate C gains whereas converting grasslands to croplands results in permanent (no-till corn with partial residue removal) or temporary (perennial herbaceous crops) net C loss to the atmosphere. This has a significant implications for global climate change mitigation where biomass production from annual and perennial crops is promoted to avoid fossil-fuel C emissions (biofuel) or to remove CO2 from the atmosphere (bioenergy C capture and storage).},

  doi          = {10.5061/dryad.sc41rn3},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Oct 15 00:00:00 EDT 2019},

  month        = {Tue Oct 15 00:00:00 EDT 2019}

}

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DOI: https://doi.org/10.5061/dryad.sc41rn3

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Works referencing / citing this record:

Ecosystem carbon exchange on conversion of Conservation Reserve Program grasslands to annual and perennial cropping systems
journal, May 2018

Abraha, Michael; Hamilton, Stephen K.; Chen, Jiquan
Agricultural and Forest Meteorology, Vol. 253-254
https://doi.org/10.1016/j.agrformet.2018.02.016

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Ecosystem carbon exchange on conversion of Conservation Reserve Program grasslands to annual and perennial cropping systems

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Land use changes into and out of agricultural production may substantially influence ecosystem carbon (C) balance for many years. We examined ecosystem C balances for eight years after the conversion of 22 year-old Conservation Reserve Program (CRP) grasslands and formerly tilled agricultural fields (AGR) to annual (continuous no-till corn) and perennial (switchgrass and restored prairie) cropland. An unconverted CRP field (CRP-Ref) was maintained as a historical reference. Ecosystem C balance was assessed using adjusted net ecosystem carbon exchange (NEEadj) calculated by adding C removed in harvested biomass to NEE measured using eddy covariance method. The cumulative NEE_adj of the cornmore »« less
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Land use conversions into and out of agriculture may influence soil-atmosphere greenhouse gas fluxes for many years. We tested the legacy effects of land use on cumulative soil nitrous oxide (N2O) fluxes for five years following conversion of 22 year-old Conservation Reserve Program (CRP) grasslands and conventionally tilled agricultural fields (AGR) to continuous no-till corn, switchgrass, and restored prairie. An unconverted CRP field served as a reference. We assessed the labile soil C pool of the upper 10 cm in 2009 (the conversion year) and in 2014 using short-term soil incubations. We also measured in situ soil N2O fluxes biweeklymore »« less
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Similar Records

Title: Data from: Ecosystem carbon exchange on conversion of Conservation Reserve Program grasslands to annual and perennial cropping systems

Abstract

Citation Formats

Ecosystem carbon exchange on conversion of Conservation Reserve Program grasslands to annual and perennial cropping systems journal, May 2018

Ecosystem carbon exchange on conversion of Conservation Reserve Program grasslands to annual and perennial cropping systems
journal, May 2018