吉安冬春季辣椒寒害致灾因子研究

Study on Cold Damagecausing Factors of Winter and Spring Pepper in Ji'an

利用吉安1961—2012年气象资料和历史灾情资料,对比分析了辣椒年度寒害与寒害过程中的最大降温幅度、最低温度、持续日数、积寒等致灾因子的关系。结果表明,采用寒害过程作为研究尺度,可很好识别辣椒寒害的发生;通过分析持续日数≥3 d的寒害过程气象因子,能更好的反映年度辣椒寒害情况;用寒害过程尺度的日最低气温≤10.0℃、持续日数≥3 d寒害过程的积寒和来识别辣椒寒害的发生,更有利于实际应用。

Using meteorological data of Ji＇an City from 1961 to 2012 and disas-ter data in history, the relationship be-tween annual cold damage of pepper and disaster-causing factors such as maxi-mum temperature reduction amplitude, lowest temperature, duration and accu-mulated cold in cold damage was com-pared. The results showed that cold-damage process was adopted as the re-search scale to identify pepper cold dam-age in time; meteorological factors in ≥3 days cold damage process were ana-lyzed to reflect annual cold damages of pepper; accumulated cold in the process of daily lowest temperature ≤10.0℃, duration ≥3 days was used to identify pepper cold damage and facilitate the practical application.