Welcome to Chinese Journal of Applied Ecology! Today is Share:

Chinese Journal of Applied Ecology

Previous Articles     Next Articles

Spatiotemporal distribution of  air temperature and precipitation in rice growth period in Fujian Province of East China and the effects of this distribution on  rice planting pattern. 

JIANG Min1, JIN Zhi-qing2, YANG Hui3, SHI Chun-lin2, ZHU Chao-zhi1, LIN Wen-xiong1   

  1. (1College of Crop Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China; 2Institute of Agricultural Economy and Information, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; 3College of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221008, Jiangsu, China)
  • Online:2012-12-18 Published:2012-12-18

Abstract: In order to investigate the effects of climate change on the rice production and rice planting pattern in Fujian Province, an analysis was made on the spatiotemporal distribution of air temperature and precipitation in rice growth period  in the Province, and the possible changes of the local rice planting pattern in the future, based on the A2, B2, and A1B scenarios of IPCC Special Report on Emission Scenario (SRES). In the future, the rice growth period’s air temperature in the Province tended to be increased, and the increment would be increased with time, with the maximum for single cropping rice and being 0.3-2.4 ℃ and 1.5-3.4 ℃ in 2011-2030 and 2031-2050, respectively. For early rice and late rice, the increment of their growth period’s air temperature would be 0.2-0.9 ℃ and 0.7-1.7 ℃ in 2011-2030 and 0.3-2.1 ℃ and 0.5-3.6 ℃ in 2031-2050, respectively, but the annual fluctuation of the mean daily temperature would be most obvious for late rice. The rice growth period’s precipitation in most parts of the Province also tended to be increased, and the increment for early rice, single cropping rice, and late rice would be 10%-40%, 10%-30%, and 10%-20%, respectively. The annual fluctuation of the precipitation would be most obvious for the early rice in southeastern Fujian. The elevated air temperature in the future could induce the increase of ≥10 ℃ accumulated temperature, and lengthen the rice growth season, making it possible to replace early and medium-maturity varieties with late-maturity  varieties, and to adopt double-rice planting pattern instead of single-rice planting pattern.