Geographical environment of wuxue

The formation of Wuxue area has experienced multi-stage crustal evolution, and the strata in the territory are relatively complete. The geological structure is located at the junction of the Yangtze paraplatform and Dabie Mountain Uplift, which constitutes a landform structure dominated by plains and hills. The northern corner is a rolling low mountain, the middle and west are hills, and the south and southeast are plains. The terrain is high in the north and low in the southeast, and it slopes from north to southeast. Basins and valleys are distributed in low mountains and hills. There are some depressions on the plain.

The mountainous area is mainly distributed in the northern edge of the city, and consists of Taiping Mountain and Henggang Mountain, two branches of Dabie Mountain, covering an area of 84.53 square kilometers, accounting for 7.04% of the total area. Taiping Mountain, located in the northeast, belongs to Qichun in the north, Huangmei in the east and Wuxue in the south, showing a north-south trend. Its mountains soar into the sky, hence the name Tung Chung Mountain. During the Xianfeng period of the Qing Dynasty, the surrounding farmers went up the mountain to escape the war, so they changed their names to Taiping Mountain. The main peak has a sharp name, with an altitude of1063.4m, which is the highest point in the city. There is a mountain peak with white sand exposed to the east. When the wind blows, white sand flutters like snowflakes. The old county annals are called "Cave Rushing Snow", which is one of the ten scenic spots in Guangji. Henggang Mountain, located in the north, is named after crossing Qichun and Wuxue. From southeast to northwest, Qichun in the north and Wuxue in the south. The main peak is called Tianzhu Peak. The cliff is steep in the north and gentle in the south. In ancient times, miscellaneous irrigation was lush, and the old county records contained "Henggang Songcui", one of the ten scenic spots in Guangji.

The hills are mainly distributed in the central, northwest and southwest corners, covering an area of about 397.96 square kilometers, accounting for 33. 15% of the total area. According to the shape, it is divided into high hills and low hills, and the height of the mountain top is 40-500 meters. The high mountains are distributed in the north of the central part, close to the low mountains. The hills are high and dense, the slope is generally less than 20 degrees, the valleys are relatively wide, the proportion of paddy fields is heavy, and the soil layer is deep, which is suitable for developing agriculture, forestry and animal husbandry. The low hills are mainly distributed in the middle, with gentle slopes and staggered ridges. The conditions for developing grain, cotton, oil, hemp and oranges are extremely superior, and it has become a famous grain-producing county, a hometown of rapeseed and a high-quality fruit base in the middle and lower reaches of the Yangtze River. It is the only comprehensive high-yield demonstration city of grain, cotton and oil in Hubei province, and reaches the standards of "ton grain field" and "double hundred cotton" at the same time.

The plain is distributed from Cangtoubu-Dajinpu-Huaqiao-Zhenggongta to the south of the Yangtze River, with an area of about 7 17.86 square kilometers, accounting for 59.8 1% of the total area. According to the causes, it can be divided into Yangtze River alluvial plain and lake plain. The alluvial plain of the Yangtze River includes Tianjiazhen, Wuxue and Longping along the Yangtze River, with an area of about 150.9 1 km2. Long from east to west, narrow from north to south, flat ground, slightly undulating in some areas, deep soil layer, fertile soil and abundant water resources, it is the main cotton production base. Lacustrine plain is located in the lakeside area in the south and east of the county seat, with an area of about 566.95 square kilometers, densely covered with lakes and hills, high soil fertility, convenient irrigation and superior conditions for developing grain and oil production and aquaculture.

Rivers mainly include Yangtze River, Mei Chuan, Zhu Jing, Daikin and Dawenyi River, and existing lakes include Taibai Lake, Wushan Lake and Makou Lake.

Reservoirs mainly include Mei Chuan Reservoir, Zhu Jing Reservoir, Xianrenba Reservoir, Daikin Reservoir, 4 medium-sized reservoirs and many small reservoirs. Wuxue belongs to subtropical monsoon humid climate. The main characteristics of the climate are that the average daily temperature in a year is equal to or greater than 10 degrees Celsius, the plant production cycle is long, and there is a lot of rainfall. Spring begins in mid-March, summer begins in late May, autumn begins in early June 65438+1October, and winter begins in late October165438+1October. Summer is hot, plum rains are obvious, autumn is crisp, winter is warmer, and the climate is mild and humid. It is a multi-purpose area suitable for the all-round development of agriculture, forestry, animal husbandry and fishery.

The annual average sunshine radiation in China is 106.799 kcal/cm2, the annual average sunny days in the city are 125.4, and the annual average sunshine hours are 19 13.5 hours.

The annual average temperature in the city is 16.8 degrees Celsius, with the highest year being 17.6 degrees Celsius (196 1 year), the lowest year being 16.2 degrees Celsius (1969), and the highest temperature being July (.

There are many easterly winds and southeast winds throughout the year, but they change with the seasons. Generally speaking, the easterly winds are the most in June 5438+October-August, and the northwest and west winds gradually increase in September. From June 5438+00 to June 5438+065438+ 10, the northwest and west winds decreased, while the east and southeast winds increased.

The city's annual average precipitation 1278.7 ~ 1442.6 mm; The first day of snowfall is generally in 65438+February, and a few years are in 165438+ 10, 1968 in 165438+ 10. Generally, March is the whole world, with an average annual snowfall of 7.3 days. The first frost date mostly appears in late 1 1 and the last frost date mostly appears in early March. The average annual frost-free period is 262.3 days, with the longest being 302 days from 1980 to198 and the shortest being 1962 to 1963.