Cold regions cover the areas with the average temperature of the coldest month below 0’C.Arid regions cober arid and semiarid areas.
Cold regions cover the areas with the average temperature of the coldest month below 0’C.Arid regions cober arid and semiarid areas.
寒区是指冬季最冷月平均温度为零度以下地区；旱区包括干旱区和半干旱区。