In the south, Zhangjiakou is largely cultivated for agricultural use. In the north, Bashang is a part of the Mongolian plateau and dominated by grasslands. The forest coverage reaches 37%, earning Zhangjiakou the title of National Forest City. According to the Ministry of Environmental Protection, Zhangjiakou has the freshest air and least PM 2.5 pollution of all Chinese cities north of Yellow River. Zhangjiakou also possesses 4.6% of China's wind energy resources, 2.5% of which has already been put into use. Moreover, the city ranks second in solar energy use Zhangjiakou will be one of the host cities at the 2022 Winter Olympics.