桂林低温冻害类型及其农业防御措施

Types of Low-temperature Freezing Disasters and Agricultural Defensive Measures in Guilin

利用1990～2008年月报表结冰资料和冰冻灾情记录分析了近19年来12次给农业生产造成重大影响的低温冻害过程,将其分为干冻害型、湿冻害型和混合冻害型过程,并选出其中3次有代表性的低温冻害过程,分析各类型的温度和天气变化特点,提出相应的农业防御措施。

Based on the monthly-reported freezing data and the records of freezing-disasters from 1990 to 2008,12 low-temperature freezing processes with significant impact on the agricultural production were analyzed.They were divided into dry freezing process,wet freezing process and mixed freezing process.And three representative low-temperature freezing processes were screened out.The temperature and weather changes of various types were analyzed.And some corresponding agricultural defensive measures were put forward.