Greenhouse gas contributions and mitigation potential of agriculture in the central USA

Johnson, Jane M. F.; Reicosky, D. C.; Allmaras, R. R.; Sauer, Thomas J.; Venterea, Rodney T.; Dell, Curtis J.

doi:10.1016/j.still.2005.02.010

Cited by 156 publications

(102 citation statements)

References 136 publications

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“…First, the magnitude of GHG emissions is a result not just of land use practices but also of land use change, which is not captured by synchronic analysis (8). Second, the soil GHG flux at any point in time depends on the previous land use history (8,12,16,17). Third, some practices that enhance soil C sequestration, such as fertilizer application and irrigation, increase GHG emissions from N 2 O release and fossil fuel burning (9,18).…”

Section: Significancementioning

confidence: 99%

Measuring and mitigating agricultural greenhouse gas production in the US Great Plains, 1870–2000

Parton

Gutmann

Merchant

et al. 2015

Proc. Natl. Acad. Sci. U.S.A.

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The Great Plains region of the United States is an agricultural production center for the global market and, as such, an important source of greenhouse gas (GHG) emissions. This article uses historical agricultural census data and ecosystem models to estimate the magnitude of annual GHG fluxes from all agricultural sources (e.g., cropping, livestock raising, irrigation, fertilizer production, tractor use) in the Great Plains from 1870 to 2000. Here, we show that carbon (C) released during the plow-out of native grasslands was the largest source of GHG emissions before 1930, whereas livestock production, direct energy use, and soil nitrous oxide emissions are currently the largest sources. Climatic factors mediate these emissions, with cool and wet weather promoting C sequestration and hot and dry weather increasing GHG release. This analysis demonstrates the long-term ecosystem consequences of both historical and current agricultural activities, but also indicates that adoption of available alternative management practices could substantially mitigate agricultural GHG fluxes, ranging from a 34% reduction with a 25% adoption rate to as much as complete elimination with possible net sequestration of C when a greater proportion of farmers adopt new agricultural practices.

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Section: Significancementioning

confidence: 99%

Measuring and mitigating agricultural greenhouse gas production in the US Great Plains, 1870–2000

Parton

Gutmann

Merchant

et al. 2015

Proc. Natl. Acad. Sci. U.S.A.

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“…The monitoring of soil organic matter (SOM) change is important to determine the sustainability of soil health and productivity as we face some daunting challenges in climate change. Improvement in SOC sequestration is an integrative process of atmosphere-plant-soil that has been widely documented in the literature (e.g., Franzluebbers 2010;Johnson et al 2005;Liebig et al 2005;Franzluebbers and Follett 2005;West and Post 2002;Lal 1999). However, most of the documented SOC sequestration rates have been determined using the "paired comparison method," which refers to the comparison of two tillage systems to each other with the absence of the pretreatment baseline for SOC stocks measured prior to the implementation of such tillage treatments.…”

mentioning

confidence: 99%

Examining the paired comparison method approach for determining soil organic carbon sequestration rates

Olson¹,

Al‐Kaisi²,

Lal³

et al. 2014

Journal of Soil and Water Conservation

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“…Soil organic C content data (Mg C ha -1 ) from numerous field studies comparing tillage systems primarily, but also comparing crop rotation, fertilizer, and cover crop systems throughout the Midwest were obtained from original studies reported in the review of the region by Johnson et al (2005). Index scores of SCI were predicted using Revised Universal Soil Loss Equation 2 (RUSLE2) version 1.26.6.4 for locations and management conditions that closely matched those from published reports.…”

Section: Methodsmentioning

confidence: 99%

“…Several recent regional literature reviews have documented the potential of conservation agricultural systems to sequester SOC (West and Post 2002;VandenBygaart et al 2003;Franzluebbers 2005;2010;Johnson et al 2005;Liebig et al 2005). Unfortunately, results appear to be site, soil, and cropping system specific, resulting in uncertainty of how to predict the effect of management in different environments (Varvel 1994;Dick et al 1998;VandenBygaart et al 2002;Venterea et al 2006;Gál et al 2007).…”

Section: Abstract: Conservation Tillage-crop Rotation-modeling-no-timentioning

confidence: 99%

Soil conditioning index and soil organic carbon in the Midwest and southeastern United States

Franzluebbers¹,

Causarano²,

Norfleet³

2011

Journal of Soil and Water Conservation

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Calibration of the soil conditioning index (SCI) to a diversity of field studies with known changes in soil organic carbon (SOC) would improve the usefulness of the SCI by the USDA Natural Resources Conservation Service to assess the environmental services provided by agricultural land stewardship. Our objectives were to (1) calibrate SCI scores against SOC from published field studies in the Midwest and (2) compare the calibration with a recently derived calibration from the southeastern United States. We found that SOC sequestration (at 25 ± 6 cm [10 ± 2 in] depth) could be reliably related to SCI across a diversity of studies in the region using the regression slope: 4. ), which is the mean ± standard error of 49 slope estimates. The calibration of SCI scores to SOC will allow SCI to become a quantitative tool for natural resource professionals to predict SOC sequestration for farmers wanting to adopt conservation practices.

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Greenhouse gas contributions and mitigation potential of agriculture in the central USA

Cited by 156 publications

References 136 publications

Measuring and mitigating agricultural greenhouse gas production in the US Great Plains, 1870–2000

Measuring and mitigating agricultural greenhouse gas production in the US Great Plains, 1870–2000

Examining the paired comparison method approach for determining soil organic carbon sequestration rates

Soil conditioning index and soil organic carbon in the Midwest and southeastern United States

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