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Journal of Agriculture ›› 2022, Vol. 12 ›› Issue (6): 66-73.doi: 10.11923/j.issn.2095-4050.cjas2020-0208

Special Issue: 生物技术 农业气象 烟草种植与生产 农业地理

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Variation Characteristics of Climate Suitability Factors for Flue-cured Tobacco Cultivation in Sanmenxia City

CAI Tao1,2()   

  1. 1CMA·Henan Key Laboratory of Agrometeorological Support and Applied Technique, Zhengzhou 450003, Henan, China
    2Sanmenxia Meteorological Bureau, Sanmenxia 472000, Henan, China
  • Received:2020-09-21 Revised:2021-01-15 Online:2022-06-20 Published:2022-07-08

Abstract:

The variation characteristics of main climate suitability factors affecting the flue-cured tobacco planting in Sanmenxia were analyzed in order to provide meteorological services for tobacco production by using climate resources more effectively. Methods of climate inclination rate, trend coefficient, coefficient of variation and R/S analysis were used to analyze the variation characteristics and future trend of climatic suitability factors for flue-cured tobacco cultivation in Sanmenxia. The results showed that the annual average sunshine duration of flue-cured tobacco field period in Sanmenxia was 824.4 h and decreased significantly at a rate of 36.4 h/10 a from 1960 to 2018; the average annual precipitation in the flourishing period was 120.2 mm and decreased at a rate of 2.7 mm/10 a, and the fluctuation of precipitation increased significantly from year to year; the annual average temperature of mature period was 23.1℃ and increased slowly at a rate of 0.03℃/10 a. The Hurst index of the three climate impact factors was 0.839, 0.611 and 0.641, respectively. The multi-year average of each climate suitability factor was within the optimal range of quantitative index, suitable for the cultivation of high-quality tobacco, and its future trend of change is consistent with the past, with the variation trend of sunshine hours being the strongest.

Key words: flue-cured tobacco, climatic factors, suitability, variation characteristics