Zhangjiakou has red land. According to relevant data, Zhangjiakou has red soil, which is developed under the vegetation condition of evergreen broad-leaved forest with warm tropical climate in Central Asia. Its soil-forming characteristics are desilication, aluminization and biological accumulation. It lacks alkali metals and alkaline earth metals, but is rich in oxides of iron and aluminum. It is acidic and reddish, so Zhangjiakou has red soil.