【摘要】 张家口地区干旱发生的频率较高,主要有春旱和夏旱,春旱出现的频率高于夏旱。本文分析了该地区的降水特征、干旱类型及干旱成因,并提出相应的减灾对策。更多还原

【Abstract】 Drought occurs frequently in zhangjiakou area. It includes spring drought andsummer drought in the main, and the front being of more frequent. The precipitation char-acteristics. types and forming cause of drought this area were analysed in this paper, andthe control countermeasures correspondently were put forward also.更多还原