Characteristics of climate, soil, landform and vegetation in Pingyao.

Pingyao County has a temperate monsoon climate with four distinct seasons. It is windy and rainy in winter and drought is obvious in spring. In summer and autumn, rainfall is concentrated and humidity is high. It is sunny all the year round. According to the statistics recorded in recent 40 years, the annual average temperature 10.6℃, the coldest in June, the average temperature -5.4℃, the extreme minimum temperature -24. 1℃, the hottest in July, the average temperature-24.2℃, and the extreme maximum temperature-41℃. Generally, in the middle of 10, the daily minimum temperature begins to drop to 0℃ or below, and rises to above 0℃ in mid-April. The average first frost period begins in the first ten days of 10, the final frost period is in the middle of April, and the annual average frost-free period is about 183 days (referring to frost). The average annual precipitation is 4 15.5mm, and the distribution of annual precipitation is also very different, mainly in July, August and September. Seasonal distribution: spring (March-May) accounts for15% of the annual precipitation; Summer (June-August) accounts for about 58.8%; Autumn (September-165438+1October) accounts for about 22.7%; Winter (65438+February-February) accounts for about 3.5%. The topography has a great influence on the wind, with the northeast wind prevailing from June to September and the southwest wind prevailing in other months. The annual average wind speed is 2. 1 m/s, which is larger in winter and spring and smaller in summer and autumn. The average number of windy days above level 7 is 7 days.

Pingyao County mainly includes Fenhe River, Huiji River, Liugen River, Yingjian River, Shahe River, Changyuan River and Guangou River. There are 10 rivers over 15km in Pingyao county, with a length of 343km. Except Fenhe River, the flow direction of rivers is basically the same as that of mountains, and they are all seasonal rivers.

Pingyao county is surrounded by mountains in the southeast, with rolling mountains in the middle and vast Pingchuan in the northwest. The land occupation ratio is 44.2%, 14.4% and 4 1.4% respectively. The highest point is Mengshan, with an altitude of1962m; The lowest point is on both banks of the lower reaches of Fenhe River, with an altitude of 735 meters.

Pingyao county is rich in biological resources, with natural vegetation including grassland, shrub, sparse forest and coniferous forest, and artificial vegetation including coniferous forest, economic forest and crops. Animal resources are mainly distributed in the southeastern mountain forest area and along the Fenhe River in the northwest, mainly including wild boar, rabbits, pheasants, foxes and badgers, roe deer, mice, snakes and birds.