Neijiang City (also known as Sweet City) is located in the southeast of the land of abundance, by the beautiful and rich Tuojiang River. Neijiang City is located at the east gate of Sichuan, connecting Chongqing in the east, Chengdu and Ziyang in the west, Zigong, Yibin and Luzhou in the south, Suining and Nanchong in the north, and chengdu-chongqing railway and neijiang-kunming railway in the north. Chengdu-Chongqing Expressway and Neiyi Expressway meet here. The highway density is higher than the national and provincial average, with a mileage of 3 149 km. It is an important intersection of traffic in southeastern Sichuan and even southwestern provinces. It is an important town in eastern Sichuan and one of the eight major cities planned and constructed in Sichuan Province. Geographical location: east longitude10415'-10526', north latitude 29 1 1 '-30 2'. The city covers an area of 5386 square kilometers, with cultivated land 185600 hectares. At present, it has jurisdiction over Shizhong District, Dongxing District, Zizhong County, Longchang County, Weiyuan County, ***3 counties and 2 districts, 87 towns and 24 townships, with a total population of 4,200,600 at the end of 2000/kloc-0, including 734,900 urban residents.

The Municipal People's Government is located in the downtown area.

Neijiang postal code: 64 1000, code: 5 1 1000, telephone area code: 0832, license plate number: Chuan K, pinyin: Neijiang stone.

Neijiang has a subtropical humid monsoon climate. Influenced by the basin and local natural environment, it has the characteristics of mild climate, abundant rainfall, sufficient light and heat and long frost-free period. It is warm in winter and hot in summer, with moderate rainfall. The average temperature is 15℃-28℃, the monthly average temperature is 6℃-8℃, the July average temperature is 26℃-28℃, the highest temperature is 4 1℃, the lowest temperature is -5.4℃, and the active accumulated temperature is about 598℃.

China is rich in heat resources, with an average annual total solar radiation of 89.6 kcal/cm2, annual total sunshine hours 1 100- 1300 hours and a frost-free period of 330 days. The number of frost days in the whole year is generally about 4-8 days, and the disastrous weather is mainly drought, alternating with drought and flood; Spring, summer, autumn and winter, low temperature, strong wind and heavy rain occur from time to time, and the rain is remarkable. The annual temperature is obviously dry in winter and dry in spring, while summer drought and summer drought also occur from time to time. The annual rainfall is below 1000 mm, mostly distributed in summer, accounting for about 60% of the annual rainfall. The high temperature period is basically the same as the rainy season, accounting for about 17% in spring and only 4% in winter.

Neijiang City belongs to the Tuojiang River system in the Yangtze River basin, which is a first-class tributary of the Yangtze River, while Liu Qing and Xiaoqinglong are second-class tributaries of the Yangtze River. The Wulong River enters Fuxi and still enters Tuojiang River.

Tuojiang River

Tuojiang River, also known as Zhongjiang, originates from Jiuding Mountain in Chaping Mountain on the northwest edge of Sichuan Basin, flows out of Hanwang into Chengdu Plain, enters the hilly area of the basin through Longquan Mountain, passes through Jianyang, Ziyang and Zizhong, enters Neijiang, and then joins the Yangtze River in Huzhou, with a total length of 629 kilometers and a drainage area of 27,900 square kilometers, of which the drainage area above Longmen Town of Tuojiang Town in Neijiang is 19329 square kilometers, and the city.

Qingliuhe

The upper reaches of Liu Qing are divided into Daliu Qinghe and Xiaoliu Qinghe. The source of the big cleaning is Tangshiba, Xinmin Township, Anyue County, and it flows into Neijiang in the nest of Tianlin Township. Xiaoqingyuan is located in Chenjiazhai, Zhongao Town, Dazu County, and flows into Neijiang through Lijia and Yuanba towns in Anyue County. Liu Qinghe joins Liu Qinghe in Songlinba Township and joins Tuojiang River at Dahekou. Total length121.74km (94km in China), drainage area1538.3km2 (523km2 in China), and annual average flow19.64m3 per second.

Little qinglong river.

Xiao qinglong river originates from Wenfeng Temple in Anyue Wenfeng Township, and flows into Tuojiang River at Xiaohekou via Dazhi and Gaoliang Taian, with a total length of 56 kilometers, a drainage area of 532 square kilometers and an average flow of 4.6 18 cubic meters per second for many years.

Wulonghe

The source of Wulong River is located in Lanjiaba, Huangwu Township, Zizhong County, with a total length of 33.15km, a drainage area of104.4km2 and an average annual flow of 2.79m3..

Neijiang lies in the middle of Sichuan Basin. It is adjacent to Longquan Mountain in the west and Huaying Mountain in Chongqing in the east. The terrain is gentle, with shallow hills and flat dams alternating with each other, extending north and south. Together with the hilly areas of Zigong, Luzhou, Yibin, Deyang, Suining and Nanchong, it forms the whole hilly area in the basin, with the east-west length of 12 1.5 km, the north-south width of 94.7 km and the area of 1340. It is a typical landform in the hilly area of central Sichuan. The main landform area is 300-500m above sea level. In this landform area, the river network is underdeveloped and the soil is insufficient.

Neijiang area is a shallow hill in Sichuan basin. Shallow hills evolved from red strata of Jurassic and Baixie, accounting for 88.8% of the total area, and the rest are low mountains. Longquan Mountain in the northwest and Jiugong Mountain in the southwest are the watershed between Minjiang River and Tuojiang River, and the main peak is 800- 1000m above sea level. There are also the remaining veins of Huaying Mountain in the southeast-Luoguan Mountain and Shengdeng Mountain. The Tuofu Valley in the eastern shallow hills consists of some ridged peaks, with a general height of 450-560 meters. The whole terrain is high in the northwest and low in the southeast. The highest point in the territory is Lion Rock in Longquan Mountain, with an altitude of 992.3 meters, and the lowest point is the Shiyang River exit in Baishui Township, Anyue, with an altitude of 248 meters.

There are Lianmu Mountain and Baiyun Mountain in Neijiang.

Liam mt

Liam Mountain is located in the northwest mountainous area of Weiyuan County, with an altitude of 834 meters. It is the highest peak in Guling Prefecture (now Renshou), and it is also the watershed of Qingxi flowing to Tuojiang water system and crossing the stream to Minjiang water system.

Baiyun Mountain

Baiyun Mountain is known as "Small and Medium-sized Qingcheng City in Sichuan", with 108 hills. The peaks are green and undulating, with dense forests, boundless forests, deep valleys and cliffs everywhere. The highest peak is 733 meters above sea level, with a relative height difference of 430 meters.