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Greenhouse Gas Emissions from Croplands

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posted on 2024-02-13, 13:06 authored by Kimberly M. Carlson, James S. Gerber, Nathaniel D. Mueller, Mario Herrero, Graham K. MacDonald, Kate A. Brauman, Petr Havlik, Christine S. O'Connell, Justin A. Johnson, Sassan S. Saatchi, Paul C. West

Stabilizing greenhouse gas (GHG) emissions from croplands as agricultural demand grows is a critical component of climate change mitigation. Emissions intensity metrics—including carbon dioxide equivalent emissions per kilocalorie produced ('production intensity') -- can highlight regions, management practices, and crops as potential foci for mitigation. Yet the spatial and crop-wise distribution of emissions intensity has been uncertain. Here, we develop global crop-specific circa 2000 estimates of GHG emissions and GHG intensity in high spatial detail, reporting the effects of rice paddy management, peatland draining, and nitrogen (N) fertilizer on CH4, CO2 and N2O emissions. Global mean production intensity is 0.16 Mg CO2e M kcal-1, yet certain cropping practices contribute disproportionately to emissions. Peatland drainage (3.7 Mg CO2e M kcal-1) -- concentrated in Europe and Indonesia—accounts for 32% of these cropland emissions despite peatlands producing just 1.1% of total crop kilocalories. Methane emissions from rice (0.58 Mg CO2e M kcal-1), a crucial food staple supplying 15% of total crop kilocalories, contribute 48% of cropland emissions, with outsized production intensity in Vietnam. In contrast, N2O emissions from N fertilizer application (0.033 Mg CO2e M kcal-1) generate only 20% of cropland emissions. We find that current total GHG emissions are largely unrelated to production intensity across crops and countries. Climate mitigation policies should therefore be directed to locations where crops have both high emissions and high intensities.

This download provides three datasets aggregated from the original output of the 172 crops; total emissions from croplands, per kilocalorie emissions from croplands and per food kilocalorie emissions from cropland. Downloads are available in Geotiff (.tif), NetCDF (.nc), or Google Earth (.kmz) formats.

Funded by USDA Agriculture and Food Research Initiative fellowship 2016-67012-25208 and NIFA Hatch project HAW01136-H.


Resources in this dataset:

  • Resource Title: EarthStat Data Download.

    File Name: Web Page, url: http://www.earthstat.org/data-download/

    This download provides three datasets aggregated from the original output of the 172 crops; total emissions from croplands, per kilocalorie emissions from croplands and per food kilocalorie emissions from cropland. Downloads are available in Geotiff (.tif), NetCDF (.nc), or Google Earth (.kmz) formats.

Funding

USDA-NIFA: Hatch project HAW01136-H

USDA: 2016-67012-25208

History

Data contact name

Carlson, Kimberly

Data contact email

kimberly.carlson@nyu.edu

Publisher

EarthStat

Temporal Extent Start Date

2000-01-01

Theme

  • Not specified

Geographic location - description

Global

ISO Topic Category

  • biota
  • boundaries
  • climatologyMeteorologyAtmosphere
  • environment
  • farming
  • geoscientificInformation
  • imageryBaseMapsEarthCover
  • inlandWaters
  • location

National Agricultural Library Thesaurus terms

greenhouse gas emissions; greenhouse gases; emissions; cropland; climate change; emissions factor; carbon dioxide; crops; peatlands; nitrogen; nitrogen fertilizers; fertilizers; methane; nitrous oxide; drainage; Europe; Indonesia; methane production; rice; Vietnam; fertilizer application; environmental policy; data collection; Internet

Pending citation

  • No

Public Access Level

  • Public

Preferred dataset citation

Carlson, Kimberly M.; Gerber, James S.; Mueller, Nathaniel D.; Herrero, Mario; MacDonald, Graham K.; Brauman, Kate A.; Havlik, Petr; O'Connell, Christine S.; Johnson, Justin A.; Saatchi, Sassan S.; West, Paul C. (2018). Greenhouse Gas Emissions from Croplands. EarthStat. https://doi.org/10.1038/nclimate3158