Zaoyang geographical environment

Zaoyang city belongs to hilly area. The northeast and south belong to Tongbai Mountain and Dahongshan Mountain, with rolling hills and sloping terrain from northeast to southwest. Yuhuangding in the northeast is the highest point in China, 778.5 meters above sea level, and most of the rest are around 400 meters. There are hills and plains in the middle and northwest. The continuous hills, northern Hunan and Guang Bei form the famous "Three North Hills" in Hubei, accounting for 54.8% of the city's total area, with an altitude of 100 to 200 meters. The lowest point in China is Wazigang, Cai Yang, which is 70 meters above sea level. There are 46 famous mountains in the territory, among which Dafu Mountain is a natural scenic spot. The main rivers 178 are divided into six water systems: Gunzi River, Heiqinghe River, Huangxiaohe River, Sanjiahe River, Heying River and Hechun River. Summarized as "three mountains, one water and six fields". Zaoyang City has a subtropical continental monsoon climate. Hot summer and cold winter, mild spring and autumn, four distinct seasons. It is dry in winter and wet in summer, with abundant sunshine, long plum in frost-free period and suitable rainfall. But there are also severe weather such as cold wave, summer drought, autumn waterlogging, heavy rain and hail. The annual average frost-free period is 232 days, and the annual average precipitation is between 500-1000 mm.

Precipitation: the distribution of precipitation is: 950- 1000mm in the northeast and south, 850-950mm in the middle and 750-850 mm in the west; The annual maximum precipitation is 1255 mm (1964), and the daily maximum precipitation is 260.9 mm (1973 April 29th). The annual minimum precipitation is 548.3mm (1966). With the cold wave, summer drought, autumn waterlogging, heavy rain, hail and other disaster weather phenomena, it has a great impact on industrial and agricultural production.

Zaoyang has plenty of sunshine, with an average of about 2 100 hours a year and an average of 5.8 hours a day. The annual sunshine rate is 48%, which can basically meet the needs of crops.

Temperature: annual average temperature in Zaoyang 15.5℃. Every time the mountain area rises 100 meters, the annual average temperature drops by 0.5℃. The annual temperature change, 1 month is the coldest, with an average of 2.3℃ over the years; It is the hottest in July, with an average of 27.7℃ over the years. The extreme maximum temperature reaches 40.8℃ (65438+August 21-23,0959); The lowest temperature day is-15.1℃ (197765438+1October 30th); Over the years, the temperature difference between day and night is between 8.5℃- 10.4℃, the temperature difference in1-June is above 10℃, and the lowest temperature in July is below 8.5℃.