WIT Press

The Characteristics Of Time Changes On Rice Production Predicted By The MRTs CGCM

Price

Free (open access)

Volume

22

Pages

10

Published

1997

Size

835 kb

Paper DOI

10.2495/ECOSUD970041

Copyright

WIT Press

Author(s)

H. Toritani, M. Yokozawa & S. Yonemura

Abstract

We estimate the time change of the rice production for every 10 years for a period of 100 years by using the MRJ's CGCM containing the transient COz experiment,^ and the crop model named SIMRJW/ On this estimation by these models, we choose the 'Koshihikari' as a representative cultivar and assume optimal cultivation technologies are adopted. Annual and summer seasonis mean air temperature increase almost linearly, and become 2.0 to 3.0 degree C higher after 70 years, 3.0 to 4.0 degree C higher after 100 years, and these temperature changes are almost 1.0 to 2.0 degree C smaller than the predictions of previous studies/ ^' ™ As a result of this, the cultivated area of 'Koshihikari'

Keywords