利用贵州省凯里地区历史天气资料1959～2012年3～5月雨量、温度的变化资料,对春季发生干旱天气过程进行分析和总结,找出凯里市春旱天气变化特征及预测指标,并得出其预报方法,对预测凯里市春季发生干旱程度具有参考价值、并提出对春旱的防御措施。 Using the data of rainfall and temperature from 1959 to 2012 in the historical climate data of the Kaili area in Guizhou Province, this paper analyzes and summarizes the process of the dry weather in the spring and finds out the characteristics of the spring and drought weather in Kaili and the prediction indexes. Draw its forecasting method, have a reference value to predict the degree of drought in Kaili City in spring, and put forward the defensive measures to spring drought.