全球智库信息集成服务系统(G2TT): Geographic variation of rice yield response to past climate change in China.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1016/S2095-3119(14)60803-0
	Geographic variation of rice yield response to past climate change in China.
	Yang J; Xiong W; Yang X-G; Cao Y; Feng L-Z
发表日期	2014
出处	Journal of Integrative Agriculture 13 (7): 1586-1598
出版年	2014
语种	英语
摘要	Previous studies demonstrated climate change had reduced rice yield in China, but the magnitude of the reduction and the spatial variations of the impact have remained in controversy to date. Based on a gridded daily weather dataset, we found there were obvious changes in temperatures, diurnal temperature range, and radiation during the rice-growing season from 1961 to 2010 in China. These changes resulted in a significant decline of simulated national rice yield (simulated with CERES-Rice), with a magnitude of 11.5%. However, changes in growing-season radiation and diurnal temperature range, not growing-season temperatures, contributed most to the simulated yield reduction, which confirmed previous estimates by empirical studies. Yield responses to changes of the climatic variables varied across different rice production areas. In rice production areas with the mean growing-season temperature at 12-14 degrees C and above 20 degrees C, a 1 degree C growing-season warming decreased rice yield by roughly 4%. This decrease was partly attributed to increased heat stresses and shorter growth period under the warmer climate. In some rice areas of the southern China and the Yangtze River Basin where the rice growing-season temperature was greater than 20 degrees C, decrease in the growing-season radiation partly interpreted the widespread yield decline of the simulation, suggesting the significant negative contribution of recent global dimming on rice production in China's main rice areas. Whereas in the northern rice production areas with relatively low growing-season temperature, decrease of the diurnal temperature range was identified as the main climatic contributor for the decline of simulated rice yield, with larger decreasing magnitude under cooler areas.
主题	Ecosystems Services and Management (ESM)
关键词	Climate change Yield responses Rice China
URL	http://pure.iiasa.ac.at/id/eprint/10893/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/130022
推荐引用方式 GB/T 7714	Yang J,Xiong W,Yang X-G,et al. Geographic variation of rice yield response to past climate change in China.. 2014.