前言1996年春季（3～5月），我国南方大部分地区出现长时期的低温阴雨天气，致使大面积农作物生长发育受到影响。遵义地区气温亦异常偏低，3月中旬至4月上旬，全区13个站各旬平均温度先后为有气象记录以来最低值或次低值，出现了罕见的低温春寒天气，热量条件极差，光照严重不 Preface In the spring of 1996 (March-May), a long period of cold and rainy weather appeared in most parts of southern China, causing the growth and development of large-scale crops to be affected. Zunyi region, the temperature is also unusually low, the mid-March to early April, the region’s 13 stations at each ten-day average temperature has meteorological records since the lowest or second lowest value, there has been a rare low temperature spring weather, poor heat conditions The light is not serious