我市位于河北省西北部,属高寒山区,无霜期短,降雨量低,由于季风大,水分蒸发总量是降雨量的4～5倍。全市总耕地面积大约为90万hm~2,绝大部分属旱作农业(即雨养农业)区,因此蓄水保墒是我市农业生产的关键,通常采取的 The city is located in northwestern Hebei Province, is an alpine mountainous area, frost-free period is short, low rainfall, due to the monsoon, the total amount of water evaporation is 4 to 5 times the rainfall. The total area of ​​cultivated land in the city is about 900,000 hm ~ 2, most of them are in the areas of dry farming (rainfed agriculture), so storing water and soil moisture is the key to agricultural production in our city and is usually taken