Is Nanchong’s location good?

Geographical location

Nanchong is located in the northeastern part of the Sichuan Basin, in the middle reaches of the Jialing River.

It is between 30°35~31°51 north latitude and 105°27~106°28 east longitude.

It spans 165 kilometers from north to south and 143 kilometers from east to west.

It borders Dazhou to the east, Guang'an to the south, Suining and Mianyang to the west, and Guangyuan and Bazhong to the north. It is located in the "Shu capital in the west, Echu in the east, Sanqin in the north, and Chongqing in the south." "Special geographical location.

(Figure 1)

Topography

The terrain of Nanchong City is mainly shallow hills, and the city’s terrain can be divided into low mountainous areas in the north and the southern hilly area are two major landform units.

The landform slopes gently from north to south, with an altitude of 256 to 889 meters.

The landform types are mainly hills, with shallow hills and dams, medium hills and valleys, and high hills and low mountains accounting for one-third each.

The general scope of the northern low mountainous area is the northern part of Langzhong City, the northwest of Nannan County, most of Yilong County, Yingshan County, the area east of Yilong River and the northern part of Peng'an County.

The altitude is generally 500~800 meters.

The northern low mountainous area is bounded by the Jialing River, Jiangxi is the branch of Jianmen Mountain, and Jiangdong is the remnant of Daba Mountain.

The landforms of the east and west parts are quite different.

Area and population

The area is 12,494 square kilometers, and the urban area is more than 40 square kilometers; Nanchong City has a total population of 7.3 million (ranking second in the province), and a population density of 564 people/ square kilometers.

The urban population is nearly 600,000.

Nanchong City governs the three districts of Shunqing, Gaoping and Jialing and the five counties of Xichong, Nanfang, Peng'an, Yingshan and Yilong as well as Langzhong City, 487 towns, 5746 villages, 48029 A club.

Nanchong City People’s *** is stationed in Shunqing District.

Natural climate

Nanchong City belongs to the mid-subtropical humid monsoon climate zone.

It has the same climate characteristics as the bottom of the Sichuan Basin: four distinct seasons, rain and heat in the same season, warm winters, early springs, long summers, more autumn rain, clouds and fog, and less frost and snow.

Spring lasts about 80-85 days, summer lasts 115-125 days, autumn lasts as short as 65-75 days, and winter lasts 85-110 days. The frost period is very short throughout the year, usually around 60 days. .

The flowers are bright in spring, the wind is clear in summer, the fragrance is ripe in autumn, and the winter solstice is warm and humid, with high air humidity and many cloudy days.

The average temperature varies little across the city.

The average annual temperature is about 15.8゜C ~17.8゜C.

The winter climate is mild, with the coldest month being January. The average monthly temperature for many years is no less than 4゜C, and the extreme low temperature in some years is less than minus 2゜C. The hottest month is July and August, with the average monthly temperature for many years being no less than 4゜C. The temperature is above 27゜C, and the extreme high temperature in some years is above 40゜C.

Affected by the topography of the Sichuan Basin, Nanchong experiences frequent autumn rains, heavy clouds, and little sunshine. In addition, it is foggy in winter. The annual average sunshine hours are only 1,200 to 1,500 hours, and the sunshine rate is 27% to 35%. It is an area with less sunshine in the province.

Starting from March, the number of sunshine continues to increase. The number of sunshine hours in midsummer reaches 190~230 hours, and the sunshine rate is 48%~57%.

The spatial and temporal distribution of rainfall in Nanchong is uneven. The average annual rainfall for many years is about 980~1150 mm, which generally decreases from southwest to northeast. Rainfall and surface runoff from January to September account for 60% of the total annual runoff. %.

Affected by the monsoon, there is more rainfall in summer, accounting for about 45% of the year, less in winter, accounting for about 5%, slightly more rainfall in spring, accounting for about 25%, and autumn and spring are roughly equal, accounting for about 25%.