张家口坝上四县毗邻内蒙,为内蒙古高原的南部边缘,海拔1300～1800m,属典型干草原大陆型季风气候,年均气温1～3℃平均降水量300～400mm。为防止疫情传入和发生,深入了解该地鼠、蚤分布有利于全市鼠防工作的开展。1 鼠类分布 按河北省啮齿动物区系划分,坝上四县属蒙新 The upper four counties of Zhangjiakouba are adjacent to Inner Mongolia. It is the southern edge of the Inner Mongolia Plateau with an elevation of 1300-1800m. It belongs to the typical steppe continental monsoon climate with an annual average temperature of 1-3 ℃ with an average rainfall of 300-400mm. In order to prevent the outbreak of the outbreak and occurrence, a better understanding of the hamster, fleas distribution is conducive to the development of rat prevention work in the city. 1 rodent distribution According to the rodent fauna in Hebei Province, dam four counties are Mongolia