贵州是冰雹的多发区,由于气候原因产生冰雹的次数在逐年增加。据统计资料显示,从今年2月中旬至5月底,我省降雹次数比去年同期增长了60%,降雹地区受灾严重,全省共有68个县出现冰雹天气。贵州是一个经济相对落后的省份,人工防雹有着显著的社会效益和经济效益。每年的3～10月是贵州省人工防雹作业的时间范围,在 Guizhou is a hail prone area, the number of hail due to climatic reasons is increasing year by year. According to statistics, from the middle of February to the end of May this year, the frequency of hail in our province increased by 60% over the same period of last year, and the hail area was seriously affected. Hail weather occurred in 68 counties throughout the province. Guizhou is a relatively economically backward province, and artificial hail prevention has significant social and economic benefits. March to October each year is the time frame of artificial hail operation in Guizhou Province