Global Climate Change Digest: Main Page | Introduction | Archives | Calendar | Copy Policy | Abbreviations | Guide to Publishers


GCRIO Home ->arrow Library ->arrow Archives of the Global Climate Change Digest ->arrow March 1999 ->arrow JOURNAL ARTICLES... CROP PRODUCTION Search

U.S. Global Change Research Information Office logo and link to home

Last Updated:
February 28, 2007

GCRIO Program Overview

 

 

Library 
Our extensive collection of documents.

 

Get Acrobat Reader

Privacy Policy

Global Climate Change DigestArchives of the
Global Climate Change Digest

A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999

FROM VOLUME 12, NUMBER 3, MARCH 1999

JOURNAL ARTICLES...
CROP PRODUCTION


Item #d99mar15

“Potential Effects of Differential Day-Night Warming in Global Climate Change on Crop Production,” G. B. Dhakhwa and C. L. Campbell,Climatic Change 40, 647-667 (1998).

GCMs and a plant-process model were used to study the effects of asymmetric climate change (where average nighttime temperatures rise more than daytime ones) on crop productivity. The model results indicated that the effects of asymmetric warming may be less severe than the effects of uniform warming.


Item #d99mar16

“Climate Change Impacts on the Potential Productivity of Corn and Winter Wheat in their Primary United States Growing Regions,” R. A. Brown and N. J. Rosenberg,Climatic Change 40, 73-107 (1999).

GCMs and plant-process models were used to assess the crop responses of dryland winter wheat and corn in the major U.S. production regions to increases in temperature and CO2 concentration. Increasing the global mean temperature 1° C decreased wheat and corn production only marginally. Temperature increases of 2.5 and 5.0° C were also modeled and, in the various models employed, produced wheat-production declines ranging from 36 to 76% and lesser corn-production declines. Increases in CO2 concentration had positive effects on both wheat and corn production (an 18 to 29% increase for wheat and a 2 to 5% increase for corn) with no temperature increases, but did not keep up with the declines when combined with higher temperatures.

  • Guide to Publishers
  • Index of Abbreviations

  • Hosted by U.S. Global Change Research Information Office. Copyright by Center for Environmental Information, Inc. For more information contact U.S. Global Change Research Information Office, Suite 250, 1717 Pennsylvania Ave, NW, Washington, DC 20006. Tel: +1 202 223 6262. Fax: +1 202 223 3065. Email: Web: www.gcrio.org. Webmaster:
    U.S. Climate Change Technology Program Intranet Logo and link to Home