Geographical environment of Shenchi county

Shenchi County is controlled by the trend of Hongtao Mountain and Guancen Mountain, and the terrain is high in the east and low in the west. Its landforms include mountains, hills, basins and other types. The hilly area is vast, accounting for more than 88% of the total area of Shenchi County, and the elevation of most areas is between 1300- 1600 meters. Pingchuan area is about 3 14 square kilometers, accounting for 21.3% of the county's total area; The hilly area is 525.5% square kilometers, accounting for 35.7% of the county's total area; The mountainous area covers an area of 623.5 square kilometers, accounting for about 43% of the total area of the county.

The surface of Shenchi County is fragmented and uneven. The highest grassy mountain is 2545 meters above sea level, the lowest elevation is 1254 meters, and the height difference is 129 1 meter. County elevation1508m. Shenchi County has a temperate continental monsoon climate. Its main characteristics are: long and cold winter, dry and windy spring, mild and hot summer, cool and rainy autumn. The annual average temperature is 4.6℃, the coldest in 1 month, the hottest in July, the average temperature is 19℃, the annual average precipitation is 48 1.3mm, and the annual average sunshine hours are 28 16.7 hours. There are many westerly winds blowing in the territory all the year round, with an average annual wind speed of 4.1m/s.

The annual sunshine hours in most areas of Shenchi County are 2798-2848 hours. The general temperature trend is to increase from east to west and decrease from basin to mountainous area. The precipitation in most areas of Shenchi County is between 465,438+00-450 mm, and the general feature of regional precipitation distribution is decreasing from southeast to northwest. During the year, the precipitation distribution is the least in winter, less in spring, highly concentrated in summer and obviously reduced in autumn. The average frost-free period in most areas of Shenchi County is between 90- 130 days, and its distribution trend is long in northwest, short in southeast, long in basin and short in mountainous area. There is a saying in the local area that "there are nine droughts in ten years and sandstorms are heavy" and "there is wind every year, and spring comes in winter". The mineral resources in Shenchi County are mainly limestone, which is distributed all over the country. The gas coal reserves in Taipingzhuang and Wenling townships in the south are 237.33 million tons, and the recoverable reserves are 220 million tons. Iron ore is buried in the east, north and southeast of the county seat. Most of the varieties are Shanxi-type, and occasionally a few are Anshan-type, with an iron content of 30-58%. Bauxite mainly occurs in Wenling, Xiaozhai, Taipingzhuang, Donghu, Dayanbei, Yijing, Bajiao and other towns. After preliminary investigation, the reserves are about 30 million tons, mainly for collective and individual mining in towns and villages.