49th TWC, Tob. Work. Conf., 2020, abstr. 10

Analysis and risk assessments of climatic factors during the field period of flue-cured tobacco in Luzhou, China - a case study

WANG A.G.; JIN B.F.; LIU L.; YANG X.; LIU Y.; ZHANG Y.L.
Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou China

Take Luzhou area - located between Sichuan, Guizhou and Yunnan provinces - , as an example, main climate factors were analyzed during the field period of flue-cured tobacco from 2006-2016, and the climatic suitability and climate risk for flue-cured tobacco were evaluated. The results showed that: (1) The air temperature and rainfall exhibited distinct spatial heterogeneity, with the former decreased from north to south and the later decreased from west to east. Since 2010, the meteorological uncertainty of tobacco growing increased. (2) Climate of most areas of Luzhou was suitable for flue-cured tobacco planting, except for central Xuyong County and northwest Gulin County due to higher rainfall during transplanting-rosette stage and higher air temperature during mature stage, respectively. (3)Most areas showed low climate risk, however, as a result of poor annual stability, central Xuyong county showed a slightly higher rainfall risk during the transplanting- rosette stage and northeastern Gulin County exhibited a slightly higher temperature risk during mature stage. Annual instability of rainfall during the early growth stage and air temperature of the mature stage are the main risk factors for tobacco growing in Luzhou area. (Reprinted with permission)