Journal
SCIENCE
Volume 344, Issue 6183, Pages 516-519Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1251423
Keywords
-
Categories
Funding
- NSF [SES-0962625]
- National Oceanic and Atmospheric Administration [NA11OAR4310095]
- USDA's Risk Management Agency
- Australian Research Council [LP100100495]
- Direct For Social, Behav & Economic Scie
- Divn Of Social and Economic Sciences [0962625] Funding Source: National Science Foundation
- Divn Of Social and Economic Sciences
- Direct For Social, Behav & Economic Scie [962559] Funding Source: National Science Foundation
- Australian Research Council [LP100100495] Funding Source: Australian Research Council
Ask authors/readers for more resources
A key question for climate change adaptation is whether existing cropping systems can become less sensitive to climate variations. We use a field-level data set on maize and soybean yields in the central United States for 1995 through 2012 to examine changes in drought sensitivity. Although yields have increased in absolute value under all levels of stress for both crops, the sensitivity of maize yields to drought stress associated with high vapor pressure deficits has increased. The greater sensitivity has occurred despite cultivar improvements and increased carbon dioxide and reflects the agronomic trend toward higher sowing densities. The results suggest that agronomic changes tend to translate improved drought tolerance of plants to higher average yields but not to decreasing drought sensitivity of yields at the field scale.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available