[Regional simulation of rice yield change under two emission scenarios of greenhouse gases].
Based on the newest emission scenarios of SO2 and greenhouse gases, i. e., the Intergovernmental Panel on Climate Change (IPCC) Special Report on Emission Scenarios (SRES) A2 and B2 scenarios, and by using RCM (Regional Climate Model)-PRECIS and CERES-Rice model, this paper simulated the rice yield change in 2080 at 50 x 50 km scale. The results showed that there was a great range of yield change across whole China. The yield would increase along the Changjiang River and in South China, and decrease in North and Northeast China. Because of the direct effect of CO2 on rice growth, the SRES A2 scenario would be more positive to the increase of rice yield than B2. In 2080, the total rice yield in whole China would increase under A2 emission scenario, while decrease under B2 emission scenario.
Xiong
Wei
W
College of Agronomy and Biotechnology, China Agricultural University, Beijing. xiongw@ami.ac.cn
Xu
Yinlong
Y
Lin
Erda
E
Lu
Zhiguang
Z
D018533:Biomass; D002681:China; D003198:Computer Simulation; D005740:Gases; D017752:Greenhouse Effect; D008962:Models, Theoretical; D012275:Oryza / Q000254:growth & development*; D013458:Sulfur Dioxide / Q000032:analysis*
D005740:Gases; D013458:Sulfur Dioxide