| 008 |
|
150507n^^^^^^^^xx^||||^o^^^^^|||^u^eng^d |
| 245 |
00 |
|a Increased greenhouse-gas intensity of rice production under future atmospheric conditions |h [electronic resource]. |
| 260 |
|
|a [S.l.] : |b Macmillan Publishers Limited, |c 2012-10-21. |
| 490 |
|
|a Nature Climate Change. |
| 506 |
|
|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
| 520 |
3 |
|a Increased atmospheric CO2 and rising temperatures are
expected to affect rice yields and greenhouse-gas (GHG)
emissions from rice paddies1–4. This is important, because
rice cultivation is one of the largest human-induced sources
of the potent GHG methane5 (CH4) and rice is the world’s
second-most produced staple crop6. 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 C0:8 [degrees]C to
C6 [degrees]C) both increase the GHG intensity of rice cultivation.
Increased atmospheric CO2 increased GHG intensity by 31.4%,
because CH4 emissions are stimulated more than rice yields.
Warming increased GHG intensity by 11.8% per 1 [degrees]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 |
| 533 |
|
|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
| 720 |
|
|a Kaes Jan van Groenigen. |
| 852 |
|
|a dpSobek |c Sea Level Rise |
| 856 |
40 |
|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15042537/00001 |y Click here for full text |
| 992 |
04 |
|a http://dpanther.fiu.edu/sobek/content/FI/15/04/25/37/00001/FI15042537_thm.jpg |
