Increased greenhouse-gas intensity of rice production under future atmospheric conditions

Kees Jan Van Groenigen, Chris Van Kessel, Bruce A Hungate

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

Increased atmospheric CO2 and rising temperatures are expected to affect rice yields and greenhouse-gas (GHG) emissions from rice paddies 1-4. This is important, because rice cultivation is one of the largest human-induced sources of the potent GHG methane5 (CH 4) and rice is the world's second-most produced staple crop 6. The need for meeting a growing global food demand7 argues for assessing GHG emissions from croplands on the basis of yield rather than land area8-10, such that efforts to reduce GHG emissions take into consideration the consequences for food production. However, it is unclear whether or how the GHG intensity (that is, yield-scaled GHG emissions) of cropping systems will be affected by future atmospheric conditions. Here we show, using meta-analysis, that increased atmospheric CO2 (ranging from 550 to 743 ppmV) and warming (ranging from +0.8°C to +6°C) both increase the GHG intensity of rice cultivation. Increased atmospheric CO 2 increased GHG intensity by 31.4%, because CH4 emissions are stimulated more than rice yields. Warming increased GHG intensity by 11.8% per 1°C, largely owing to a decrease in yield. This analysis suggests that rising CO2 and warming will approximately double the GHG intensity of rice production by the end of the twenty-first century, stressing the need for management practices that optimize rice production while reducing its GHG intensity as the climate continues to change.

Original languageEnglish (US)
Pages (from-to)288-291
Number of pages4
JournalNature Climate Change
Volume3
Issue number3
DOIs
StatePublished - Mar 2013

Fingerprint

greenhouse gas
rice
food
warming
twenty-first century
climate
meta-analysis
twenty first century
food production
management
cropping practice
management practice
crop

ASJC Scopus subject areas

  • Environmental Science (miscellaneous)
  • Social Sciences (miscellaneous)

Cite this

Increased greenhouse-gas intensity of rice production under future atmospheric conditions. / Van Groenigen, Kees Jan; Van Kessel, Chris; Hungate, Bruce A.

In: Nature Climate Change, Vol. 3, No. 3, 03.2013, p. 288-291.

Research output: Contribution to journalArticle

Van Groenigen, Kees Jan ; Van Kessel, Chris ; Hungate, Bruce A. / Increased greenhouse-gas intensity of rice production under future atmospheric conditions. In: Nature Climate Change. 2013 ; Vol. 3, No. 3. pp. 288-291.
@article{72fffe436ced4db6ab40b9b39cbda55b,
title = "Increased greenhouse-gas intensity of rice production under future atmospheric conditions",
abstract = "Increased atmospheric CO2 and rising temperatures are expected to affect rice yields and greenhouse-gas (GHG) emissions from rice paddies 1-4. This is important, because rice cultivation is one of the largest human-induced sources of the potent GHG methane5 (CH 4) and rice is the world's second-most produced staple crop 6. The need for meeting a growing global food demand7 argues for assessing GHG emissions from croplands on the basis of yield rather than land area8-10, such that efforts to reduce GHG emissions take into consideration the consequences for food production. However, it is unclear whether or how the GHG intensity (that is, yield-scaled GHG emissions) of cropping systems will be affected by future atmospheric conditions. Here we show, using meta-analysis, that increased atmospheric CO2 (ranging from 550 to 743 ppmV) and warming (ranging from +0.8°C to +6°C) both increase the GHG intensity of rice cultivation. Increased atmospheric CO 2 increased GHG intensity by 31.4{\%}, because CH4 emissions are stimulated more than rice yields. Warming increased GHG intensity by 11.8{\%} per 1°C, largely owing to a decrease in yield. This analysis suggests that rising CO2 and warming will approximately double the GHG intensity of rice production by the end of the twenty-first century, stressing the need for management practices that optimize rice production while reducing its GHG intensity as the climate continues to change.",
author = "{Van Groenigen}, {Kees Jan} and {Van Kessel}, Chris and Hungate, {Bruce A}",
year = "2013",
month = "3",
doi = "10.1038/nclimate1712",
language = "English (US)",
volume = "3",
pages = "288--291",
journal = "Nature Climate Change",
issn = "1758-678X",
publisher = "Nature Publishing Group",
number = "3",

}

TY - JOUR

T1 - Increased greenhouse-gas intensity of rice production under future atmospheric conditions

AU - Van Groenigen, Kees Jan

AU - Van Kessel, Chris

AU - Hungate, Bruce A

PY - 2013/3

Y1 - 2013/3

N2 - Increased atmospheric CO2 and rising temperatures are expected to affect rice yields and greenhouse-gas (GHG) emissions from rice paddies 1-4. This is important, because rice cultivation is one of the largest human-induced sources of the potent GHG methane5 (CH 4) and rice is the world's second-most produced staple crop 6. The need for meeting a growing global food demand7 argues for assessing GHG emissions from croplands on the basis of yield rather than land area8-10, such that efforts to reduce GHG emissions take into consideration the consequences for food production. However, it is unclear whether or how the GHG intensity (that is, yield-scaled GHG emissions) of cropping systems will be affected by future atmospheric conditions. Here we show, using meta-analysis, that increased atmospheric CO2 (ranging from 550 to 743 ppmV) and warming (ranging from +0.8°C to +6°C) both increase the GHG intensity of rice cultivation. Increased atmospheric CO 2 increased GHG intensity by 31.4%, because CH4 emissions are stimulated more than rice yields. Warming increased GHG intensity by 11.8% per 1°C, largely owing to a decrease in yield. This analysis suggests that rising CO2 and warming will approximately double the GHG intensity of rice production by the end of the twenty-first century, stressing the need for management practices that optimize rice production while reducing its GHG intensity as the climate continues to change.

AB - Increased atmospheric CO2 and rising temperatures are expected to affect rice yields and greenhouse-gas (GHG) emissions from rice paddies 1-4. This is important, because rice cultivation is one of the largest human-induced sources of the potent GHG methane5 (CH 4) and rice is the world's second-most produced staple crop 6. The need for meeting a growing global food demand7 argues for assessing GHG emissions from croplands on the basis of yield rather than land area8-10, such that efforts to reduce GHG emissions take into consideration the consequences for food production. However, it is unclear whether or how the GHG intensity (that is, yield-scaled GHG emissions) of cropping systems will be affected by future atmospheric conditions. Here we show, using meta-analysis, that increased atmospheric CO2 (ranging from 550 to 743 ppmV) and warming (ranging from +0.8°C to +6°C) both increase the GHG intensity of rice cultivation. Increased atmospheric CO 2 increased GHG intensity by 31.4%, because CH4 emissions are stimulated more than rice yields. Warming increased GHG intensity by 11.8% per 1°C, largely owing to a decrease in yield. This analysis suggests that rising CO2 and warming will approximately double the GHG intensity of rice production by the end of the twenty-first century, stressing the need for management practices that optimize rice production while reducing its GHG intensity as the climate continues to change.

UR - http://www.scopus.com/inward/record.url?scp=84874612502&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84874612502&partnerID=8YFLogxK

U2 - 10.1038/nclimate1712

DO - 10.1038/nclimate1712

M3 - Article

VL - 3

SP - 288

EP - 291

JO - Nature Climate Change

JF - Nature Climate Change

SN - 1758-678X

IS - 3

ER -