【摘要】 为探明黔西南的烤烟质量特征及其关键气象驱动因子，以黔西南州6个主要植烟县为对象，采集36个样点的烟叶及其对应的气象数据，采用模糊数学、层次聚类分析和偏最小二乘回归(PLSR)模型，对不同区域的烟叶质量进行综合评价，并探讨关键气象因子对烟叶感官品质的调控作用。结果表明：各样点烟叶质量存在显著差异，根据综合得分可将烟区划分为三类，其中Ⅰ类优质区主要分布于西北部和西南部。烤烟生长前期(还苗期、旺长期)过量降水会抑制烤后烟叶的浓度与劲头，而成熟期适度降水虽有助于提高烟叶的浓度与劲头，但会抑制香型表达。日照时间对烤后烟叶感官风格影响显著，前期日照充足有助于浓度形成，旺长期至成熟期强光则可能抑制香气表达。本研究明确了黔西南烟叶品质的空间格局，明确了感官品质的关键气象驱动因素，可为优化烤烟生态区划、发展优质产区提供理论依据。更多还原

【Abstract】 To elucidate the quality characteristics of flue-cured tobacco in southwestern Guizhou and its key meteorological driving factors, six major tobacco-producing counties in southwestern Guizhou were selected.Tobacco leaf samples and corresponding meteorological data were collected from 36 sampling sites.Using fuzzy mathematics, hierarchical cluster analysis, and partial least squares regression(PLSR) models, a comprehensive evaluation of regional tobacco quality was conducted, and the regulatory effects of key meteorological factors on the sensory quality of tobacco leaves were explored.The results showed that there were significant differences in tobacco leaf quality among the sampling sites.According to the comprehensive scores, the tobacco-growing areas could be divided into three categories, among which class I,representing high-quality areas, was mainly distributed in the northwest and southwest regions.Excessive precipitation during the early growth stages(recovery and vigorous growth stages) inhibited the intensity and strength of cured leaves, while moderate precipitation during the maturity stage improved these traits but suppressed aroma expression.Sunshine duration significantly affected the sensory style of cured leaves: sufficient sunshine in the early stage favored the formation of intensity, whereas strong light from the vigorous growth to maturity stages tended to inhibit aroma expression.This study clarified the spatial pattern of tobacco quality in southwestern Guizhou and identified the key meteorological driving factors of sensory quality, providing a theoretical basis for optimizing the ecological zoning of flue-cured tobacco and developing high-quality production areas.更多还原