The geographical environment of Huailai County
Huailai County is located in a mid-temperate semi-arid area and has a temperate continental monsoon climate. It has four distinct seasons, sufficient sunlight, rain and heat in the same season, and a large temperature difference between day and night. The average annual sunshine hours are 3027 hours, and the frost-free period is 149 days throughout the year. According to meteorological data records, the maximum temperature is 42.2℃, the minimum temperature is -23.3℃, and the average temperature is 9.1℃. The average annual precipitation is 396mm, with more precipitation in the north and south mountains; the average annual wind speed is 2.3m/s. The main meteorological disasters include wind and sand, drought, hail, frost, etc.
The average temperature in January is 7.4℃, the average temperature in July is 24.4℃, and the annual average temperature is 9.6℃. It has a warm temperate continental monsoon climate. Huailai County has a mid-temperate semi-arid monsoon climate with four distinct seasons, sufficient sunlight, rain and heat in the same season, and large daily temperature differences. Spring is often affected by cold air and the weather is changeable, with drought, little rain and windy weather. In summer, affected by the Pacific subtropical high pressure, the weather is warm and humid and precipitation increases. In autumn, as the Pacific subtropical high pressure moves, the warm and humid airflow gradually weakens, and the dry and cold airflow from the northwest strengthens, making the weather clearer and cooler. Cold air activities are frequent in winter, and the weather is cold and snowless. The annual average temperature in Huailai is 9.6°C, and the total annual precipitation is about 370 mm.
In 2012, Huailai County had more than 20 proven mineral deposits and 13 proven reserves. Among them, metallic minerals include iron, zinc, gold, silver, pyrite, etc.; non-metallic minerals include coal, limestone, marble, granite, dolomite, silica, high-phosphate soil, construction sand and gravel, etc.
Main mineral reserves: 18.71 million tons of coal mines, 28.65 million tons of iron ore, 303,000 tons of gold mines, 22.09 million tons of cement limestone, 6.15 million tons of flux limestone, and 1,984 tons of dolomite for metallurgy 10,000 tons and 17.01 million tons of diabase used in construction.