Simulation of Biomass Yield and Soil Organic Carbon under Bioenergy Sorghum Production
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{"title"=>"Simulation of biomass yield and soil organic carbon under bioenergy sorghum production", "type"=>"journal", "authors"=>[{"first_name"=>"Fugen", "last_name"=>"Dou", "scopus_author_id"=>"15064990800"}, {"first_name"=>"Jason P.", "last_name"=>"Wight", "scopus_author_id"=>"55321324700"}, {"first_name"=>"Lloyd T.", "last_name"=>"Wilson", "scopus_author_id"=>"7403521415"}, {"first_name"=>"Joseph O.", "last_name"=>"Storlien", "scopus_author_id"=>"55321411400"}, {"first_name"=>"Frank M.", "last_name"=>"Hons", "scopus_author_id"=>"7004088061"}, {"first_name"=>"Upendra M.", "last_name"=>"Sainju", "scopus_author_id"=>"6603836804"}], "year"=>2014, "source"=>"PLoS ONE", "identifiers"=>{"sgr"=>"84919800355", "pui"=>"600996647", "doi"=>"10.1371/journal.pone.0115598", "pmid"=>"25531758", "scopus"=>"2-s2.0-84919800355", "issn"=>"19326203", "isbn"=>"10.1371/journal.pone.0115598"}, "id"=>"79066575-2a8c-3a15-b5ac-e0c06b51a252", "abstract"=>"Developing sustainable management practices including appropriate residue removal and nitrogen (N) fertilization for bioenergy sorghum is critical. However, the effects of residue removal and N fertilization associated with bioenergy sorghum production on soil organic carbon (SOC) are less studied compared to other crops. The objective of our research was to assess the impacts of residue removal and N fertilization on biomass yield and SOC under biomass sorghum production. Field measurements were used to calibrate the DNDC model, then verified the model by comparing simulated results with measured results using the field management practices as agronomic inputs. Both residue removal and N fertilization affected bioenergy sorghum yields in some years. The average measured SOC at 0-50 cm across the treatments and the time-frame ranged from 47.5 to 78.7 Mg C ha-1, while the simulated SOC was from 56.3 to 67.3 Mg C ha-1. The high correlation coefficients (0.65 to 0.99) and low root mean square error (3 to 18) between measured and simulated values indicate the DNDC model accurately simulated the effects of residue removal with N fertilization on bioenergy sorghum production and SOC. The model predictions revealed that there is, in the long term, a trend for higher SOC under bioenergy sorghum production regardless of residue management.", "link"=>"http://www.mendeley.com/research/simulation-biomass-yield-soil-organic-carbon-under-bioenergy-sorghum-production", "reader_count"=>25, "reader_count_by_academic_status"=>{"Librarian"=>1, "Researcher"=>6, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>5, "Student > Master"=>5, "Other"=>2, "Student > Bachelor"=>2, "Unspecified"=>3}, "reader_count_by_user_role"=>{"Librarian"=>1, "Researcher"=>6, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>5, "Student > Master"=>5, "Other"=>2, "Student > Bachelor"=>2, "Unspecified"=>3}, "reader_count_by_subject_area"=>{"Unspecified"=>4, "Environmental Science"=>9, "Agricultural and Biological Sciences"=>8, "Business, Management and Accounting"=>1, "Physics and Astronomy"=>1, "Earth and Planetary Sciences"=>2}, "reader_count_by_subdiscipline"=>{"Physics and Astronomy"=>{"Physics and Astronomy"=>1}, "Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>2}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>8}, "Business, Management and Accounting"=>{"Business, Management and Accounting"=>1}, "Unspecified"=>{"Unspecified"=>4}, "Environmental Science"=>{"Environmental Science"=>9}}, "reader_count_by_country"=>{"Ireland"=>1, "Spain"=>1}, "group_count"=>3}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/1852092"], "description"=>"<p>Simulated soil organic C in a 50-yr period for the upper 50 cm of soil as affected by different residue removal rates under optimal N fertilization at College Station, Texas.</p>", "links"=>[], "tags"=>["N fertilization", "67.3 Mg C", "biomass sorghum production", "DNDC model", "78.7 Mg C", "soc", "bioenergy sorghum yields", "bioenergy sorghum production", "residue removal", "field management practices", "Soil Organic Carbon"], "article_id"=>1276941, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Fugen Dou", "Jason P. Wight", "Lloyd T. Wilson", "Joseph O. Storlien", "Frank M. Hons"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0115598.g002", "stats"=>{"downloads"=>1, "page_views"=>14, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Simulated_soil_organic_C_in_a_50_yr_period_for_the_upper_50_cm_of_soil_as_affected_by_different_residue_removal_rates_under_optimal_N_fertilization_at_College_Station_Texas_/1276941", "title"=>"Simulated soil organic C in a 50-yr period for the upper 50 cm of soil as affected by different residue removal rates under optimal N fertilization at College Station, Texas.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-12-22 02:47:16"}
  • {"files"=>["https://ndownloader.figshare.com/files/1852103"], "description"=>"<p>DF and Pr refer to degree of freedom and probability, respectively.</p><p>Analysis of variance for soil organic C as affected by N fertilization, residue return, and their interaction in 2008, 2009, 2010, 2011, and 2012.</p>", "links"=>[], "tags"=>["N fertilization", "67.3 Mg C", "biomass sorghum production", "DNDC model", "78.7 Mg C", "soc", "bioenergy sorghum yields", "bioenergy sorghum production", "residue removal", "field management practices", "Soil Organic Carbon"], "article_id"=>1276949, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Fugen Dou", "Jason P. Wight", "Lloyd T. Wilson", "Joseph O. Storlien", "Frank M. Hons"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0115598.t005", "stats"=>{"downloads"=>7, "page_views"=>19, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Analysis_of_variance_for_soil_organic_C_as_affected_by_N_fertilization_residue_return_and_their_interaction_in_2008_2009_2010_2011_and_2012_/1276949", "title"=>"Analysis of variance for soil organic C as affected by N fertilization, residue return, and their interaction in 2008, 2009, 2010, 2011, and 2012.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-12-22 02:47:16"}
  • {"files"=>["https://ndownloader.figshare.com/files/1852102"], "description"=>"<p>* -N and +N refer to without N fertilization and with a N rate at 300 kg N ha<sup>-1</sup> for 2008 and 250 kg N ha<sup>−1</sup> thereafter.</p>†<p>means with standard deviation.</p>‡<p>Mean values within the same year labeled with different letters differ significantly at P<0.05.</p><p>Measured and simulated dry biomass yields (Mg ha<sup>−1</sup>) as affected by residue removal and N fertilization under bioenergy sorghum at College Station, TX.</p>", "links"=>[], "tags"=>["N fertilization", "67.3 Mg C", "biomass sorghum production", "DNDC model", "78.7 Mg C", "soc", "bioenergy sorghum yields", "bioenergy sorghum production", "residue removal", "field management practices", "Soil Organic Carbon"], "article_id"=>1276948, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Fugen Dou", "Jason P. Wight", "Lloyd T. Wilson", "Joseph O. Storlien", "Frank M. Hons"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0115598.t004", "stats"=>{"downloads"=>9, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Measured_and_simulated_dry_biomass_yields_Mg_ha_8722_1_as_affected_by_residue_removal_and_N_fertilization_under_bioenergy_sorghum_at_College_Station_TX_/1276948", "title"=>"Measured and simulated dry biomass yields (Mg ha<sup>−1</sup>) as affected by residue removal and N fertilization under bioenergy sorghum at College Station, TX.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-12-22 02:47:16"}
  • {"files"=>["https://ndownloader.figshare.com/files/1852095"], "description"=>"<p>The nitrogen (N) rate was 300 kg N ha<sup>−1</sup> for 2008 and 250 kg N ha<sup>−1</sup> thereafter.</p><p>Statistical tests applied for agreement between simulated and measured values of biomass yield and soil organic C (SOC) under bioenergy sorghum production at College Station, Texas.</p>", "links"=>[], "tags"=>["N fertilization", "67.3 Mg C", "biomass sorghum production", "DNDC model", "78.7 Mg C", "soc", "bioenergy sorghum yields", "bioenergy sorghum production", "residue removal", "field management practices", "Soil Organic Carbon"], "article_id"=>1276945, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Fugen Dou", "Jason P. Wight", "Lloyd T. Wilson", "Joseph O. Storlien", "Frank M. Hons"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0115598.t002", "stats"=>{"downloads"=>8, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Statistical_tests_applied_for_agreement_between_simulated_and_measured_values_of_biomass_yield_and_soil_organic_C_SOC_under_bioenergy_sorghum_production_at_College_Station_Texas_/1276945", "title"=>"Statistical tests applied for agreement between simulated and measured values of biomass yield and soil organic C (SOC) under bioenergy sorghum production at College Station, Texas.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-12-22 02:47:16"}
  • {"files"=>["https://ndownloader.figshare.com/files/1852094"], "description"=>"<p>* Only for 2008, we harvested twice to test the different harvesting effect on sorghum biomass yield.</p><p>n/a refers to data not available.</p><p>Field operations and dates performed at College Station, Texas.</p>", "links"=>[], "tags"=>["N fertilization", "67.3 Mg C", "biomass sorghum production", "DNDC model", "78.7 Mg C", "soc", "bioenergy sorghum yields", "bioenergy sorghum production", "residue removal", "field management practices", "Soil Organic Carbon"], "article_id"=>1276942, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Fugen Dou", "Jason P. Wight", "Lloyd T. Wilson", "Joseph O. Storlien", "Frank M. Hons"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0115598.t001", "stats"=>{"downloads"=>3, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Field_operations_and_dates_performed_at_College_Station_Texas_/1276942", "title"=>"Field operations and dates performed at College Station, Texas.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-12-22 02:47:16"}
  • {"files"=>["https://ndownloader.figshare.com/files/1852107"], "description"=>"<div><p>Developing sustainable management practices including appropriate residue removal and nitrogen (N) fertilization for bioenergy sorghum is critical. However, the effects of residue removal and N fertilization associated with bioenergy sorghum production on soil organic carbon (SOC) are less studied compared to other crops. The objective of our research was to assess the impacts of residue removal and N fertilization on biomass yield and SOC under biomass sorghum production. Field measurements were used to calibrate the DNDC model, then verified the model by comparing simulated results with measured results using the field management practices as agronomic inputs. Both residue removal and N fertilization affected bioenergy sorghum yields in some years. The average measured SOC at 0–50 cm across the treatments and the time-frame ranged from 47.5 to 78.7 Mg C ha<sup>−1</sup>, while the simulated SOC was from 56.3 to 67.3 Mg C ha<sup>−1</sup>. The high correlation coefficients (0.65 to 0.99) and low root mean square error (3 to 18) between measured and simulated values indicate the DNDC model accurately simulated the effects of residue removal with N fertilization on bioenergy sorghum production and SOC. The model predictions revealed that there is, in the long term, a trend for higher SOC under bioenergy sorghum production regardless of residue management.</p></div>", "links"=>[], "tags"=>["N fertilization", "67.3 Mg C", "biomass sorghum production", "DNDC model", "78.7 Mg C", "soc", "bioenergy sorghum yields", "bioenergy sorghum production", "residue removal", "field management practices", "Soil Organic Carbon"], "article_id"=>1276953, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Fugen Dou", "Jason P. Wight", "Lloyd T. Wilson", "Joseph O. Storlien", "Frank M. Hons"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0115598", "stats"=>{"downloads"=>4, "page_views"=>15, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Simulation_of_Biomass_Yield_and_Soil_Organic_Carbon_under_Bioenergy_Sorghum_Production_/1276953", "title"=>"Simulation of Biomass Yield and Soil Organic Carbon under Bioenergy Sorghum Production", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-12-22 02:47:16"}
  • {"files"=>["https://ndownloader.figshare.com/files/1852104"], "description"=>"<p>*-N and +N refer to without N fertilization and with a N rate at 300 kg N ha<sup>−1</sup> for 2008 and 250 kg N ha<sup>−1</sup> thereafter.</p>†<p>means with standard deviation.</p>‡<p>Mean values within the same year labeled with different letters differ significantly at P<0.05.</p><p>Measured and simulated soil organic C (Mg C ha<sup>−1</sup>) as affected by residue removal and N fertilization under bioenergy sorghum at College Station, Texas.</p>", "links"=>[], "tags"=>["N fertilization", "67.3 Mg C", "biomass sorghum production", "DNDC model", "78.7 Mg C", "soc", "bioenergy sorghum yields", "bioenergy sorghum production", "residue removal", "field management practices", "Soil Organic Carbon"], "article_id"=>1276950, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Fugen Dou", "Jason P. Wight", "Lloyd T. Wilson", "Joseph O. Storlien", "Frank M. Hons"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0115598.t006", "stats"=>{"downloads"=>0, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Measured_and_simulated_soil_organic_C_Mg_C_ha_8722_1_as_affected_by_residue_removal_and_N_fertilization_under_bioenergy_sorghum_at_College_Station_Texas_/1276950", "title"=>"Measured and simulated soil organic C (Mg C ha<sup>−1</sup>) as affected by residue removal and N fertilization under bioenergy sorghum at College Station, Texas.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-12-22 02:47:16"}
  • {"files"=>["https://ndownloader.figshare.com/files/1852100"], "description"=>"<p>DF and Pr refer to degree of freedom and probability, respectively.</p><p>Analysis of variance for biomass yield as affected by N fertilization, residue return, and their interaction in 2008, 2009, 2010, 2011, and 2012.</p>", "links"=>[], "tags"=>["N fertilization", "67.3 Mg C", "biomass sorghum production", "DNDC model", "78.7 Mg C", "soc", "bioenergy sorghum yields", "bioenergy sorghum production", "residue removal", "field management practices", "Soil Organic Carbon"], "article_id"=>1276946, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Fugen Dou", "Jason P. Wight", "Lloyd T. Wilson", "Joseph O. Storlien", "Frank M. Hons"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0115598.t003", "stats"=>{"downloads"=>3, "page_views"=>14, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Analysis_of_variance_for_biomass_yield_as_affected_by_N_fertilization_residue_return_and_their_interaction_in_2008_2009_2010_2011_and_2012_/1276946", "title"=>"Analysis of variance for biomass yield as affected by N fertilization, residue return, and their interaction in 2008, 2009, 2010, 2011, and 2012.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-12-22 02:47:16"}

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