Taoer River

Taoer River is the largest tributary on the right bank of Nenjiang River. It is located in Xing'an League of Inner Mongolia and the northwest of Jilin Province. It originates from jiudaogou, Bailang Forestry Bureau, Gaoyue mountain, southern foot of Aershan mountain, Daxing'an Mountains, Inner Mongolia. It is composed of 10 small rivers of different sizes. The southeast flows through Keyouqianqi, Wulanhaote City, Taonan city and Zhenlai County, and then flows into the moon bubble in the north of Da'an City, and then flows into Nenjiang River. It is 553 kilometers long and has a drainage area of 30800 square kilometers. It flows from northwest to southeast to Wulanhaote, converges with Guiliu River, turns northeast to Nenjiang River in Taonan city of Jilin Province.

Taoer River

Taoer River is the largest tributary of Nenjiang River on the right bank of Songhua River in Heilongjiang Province. It is located in Xing'an League of Inner Mongolia and the northwest of Jilin Province. It originates from jiudaogou, Bailang Town, Aershan City, Gaoyue mountain, Southeast of Daxing'an Mountains, Inner Mongolia. It is composed of 10 small rivers of different sizes. The southeast flows through KEYOUQIAN banner, Wulanhaote City, Taobei District, Taonan city and Zhenlai County, and then flows into the moon bubble in the north of Da'an City, and then flows into Nenjiang River. It is 553 kilometers long (595 kilometers)

563 km

）The drainage area is 30800 square kilometers (33100 square kilometers)

）。 It flows from northwest to southeast to Wulanhaote, converges with Guiliu River, turns northeast to Nenjiang River in Taonan city of Jilin Province.

Business card picture: Taoer River in KEYOUQIAN banner

Name evolution

Tao'er River, commonly known as Tao River, is called Tai Luo river, Tai Lu River and Qi'er River in ancient times. In the southern and Northern Dynasties and Sui Dynasty, it was called the Taier river. In the Tang Dynasty, the upper reaches were called Xuyue River, and the lower reaches were called taliou river. During the Five Dynasties and Ten Kingdoms, it was called TALU River, and Qidan of Liao Dynasty was called Dalu river. In the fourth year of Taiping (1024) of Liao Dynasty, when Sheng Zong yelulungxu came here to hunt, he was ordered to change his name to Changchun river. Jinnuzhen is called dalugu river. Yuan Dynasty is called tuowuer river. It is known as the Ta'er river. Tuola in qinghuidian, Tao Erqing in qingtongzhi, Tuoluo in qingyitongzhi and Taoerhe in Shengjing Tongzhi. Later, it was renamed Taoerhe.

The reason why Taoer River got its name is recorded in the general chronicle of Shengjing, which is written by the Emperor: "Taoer River, Mongolian. Tao Er, the net also It can be seen that Tao'er River gets its name because it has a wide river surface and many tributaries.

General situation of main stream

Trend of main stream

The front section of Tao'er River, located in Xing'an League of Inner Mongolia Autonomous Region, originates from Gaoyue mountain of Aershan city. From northwest to Southeast, it passes through KEYOUQIAN banner obliquely. After passing through Ulanhot City, it leaves the country in the southeast of KEYOUQIAN banner. Xingan League is 322 kilometers long, with a drainage area of 27875 square kilometers. The height difference between the source of the river and the exit is 1282m, and the average gradient of the river is 2.13 ‰. The main tributaries are Guiliu River, Jiaoliu River, ermute River, etc.

Taoer River originates from gaoruoshan (Gaoyue mountain, 1592 meters above sea level) in Aershan City, Xing'an League

）Bailang town at the West foot (the Northeast peak of dajiudaogou, Aershan city), the elevation of the river source is about 1500m

）It flows through Bailang town from north to south, with a length of about 40km, a width of about 10m and a depth of about 1m. From west to East, it flows through Bailang Town, Wuchagou town and mingshuihe town. On the way from the north of Bailang town in Aershan city to Wuchagou Town, nine streams, including niufentai River, banjiagou River, chagang River and Shuangma River, flow out from Wuchagou and turn to the East,

In the east of mingshuihe town.

Taoer River, the main stream continues to flow eastward. On the way to Suolun town of Horqin Right Wing Front Banner, it gathers the rivers of ermusitai River, hustai River, tuoguoluntai River, tuomogong River, Manchu River and hahai river. After flowing out of Suolun Town, it turns southeast, and on the way to the south of Ulanhot City, it gathers the halarigetai River, Ulan Maodu River, nierengalaga River, ulastai River and Xingmu river More than 20 rivers. At the confluence of Guiliu River in the south of Ulanhot City, the width of the riverbed increased from 50m (Solon section) to 150m, and the water depth increased from 0.6-1m to 1.5m. After confluence with Guiliu River, it continued to flow southeast into Jilin Province. The total length is 595 km, the length of the banner border flow is 198.7 km, and the drainage area above the junction of Qianqi and Taonan city is 18476 square km (including the drainage area of Guiliu River, 15994 square km).

In the territory of Ulanhot City, it flows from north to south, through yilelite Sumu and Ulan hada Sumu of Ulanhot city and some villages in suburbs. It is 37.5 km from the East baiyingacha of yilelite Sumu to the South baiyingacha of niaoranhada Sumu. The river bed is 60-100 meters wide, the average water depth is about 1 meter, and the drainage area is 653.15 square kilometers.

The following reaches enter Baicheng City, Jilin Province. In xinpingtunxi of Taonan city (Lingxia Town, Taobei District, Baicheng City), it enters Jilin Province, flows through the boundary of Taonan city and Taobei District, and four counties (cities and districts) of Zhenlai county and Da'an City, turns to the East in the northwest of Hantun of Da'an County, and enters Yueliangpao at the end, and flows into Nenjiang River through haljin sluice of Yueliangpao reservoir. In Jilin Province, the river is 279.7 km long (302 km long)

）The drainage area is 10615 square kilometers (9594.5 square kilometers)

）。 The section from Xinping to Zhenxi is hilly area with steep slope and rapid flow, and pebbles at the bottom of the river. Below the west of the town is a plain area, with developed meanders and many beaches. The bottom of the river is composed of pebbles and fine sand, and the bank collapse is serious. Taonan town below, more low-lying wetlands along the coast, willow hair tufts, reed Artemisia into a piece. The seepage of Taoer River and Jiaoliu River recharges groundwater, and the runoff decreases downstream.

In Taobei District of Baicheng City, Taoer River flows through six townships (towns) including Ping'an Town, Dongsheng township, Jinxiang Township, Deshun Township, Taohe town and Zhibao Town, with a total length of 124.6 kilometers, a drainage area of 2053 square kilometers, a river network density of 0.07 km / square kilometers, and a total runoff of 260 million cubic meters. The river section is the boundary river between Taobei district and Taonan city. On the South Bank of Taonan City, it flows through Wafang Town, Xingye Township, Fushun Township, Xingfu Township, Taofu township (where the urban area is located), Xiangyang Township and Erlong Township, with a river length of about 110 km.

In Da'an County, the main stream of Tao'er River enters from Qingyou village of Sheli town (former Liuhe Township), passes through the western and northern borders of Sheli Town, xinaili Mongolian Township, Shaoguo Township, Fengshou Town, angung Town, honggangzi township (jiezhenlai county), and enters Yueliangpao (reservoir) in the northern part of honggangzi Township, passing through the reservoir haljin sluice

It flows into Nenjiang River. Daan county is 147 kilometers long. Tao'er river is the boundary river between Da'an county and Zhenlai county. It flows through Heiyupao town and Yanjiang town in Zhenlai county. The lower reaches have flat terrain, narrow river bed, curved river channel, moving back to the bottom of sediment, many reed ponds on the river bank, and luxuriant water and grass.

Channel characteristics

The section from Heyuan to Suolun is located in the middle and low mountain area of Inner Mongolia Autonomous Region, with secondary forest, good vegetation, clear river, steep river slope, high velocity, obvious scouring and pebble bed. From Solon down into the hilly area, the width of the main river reaches 300 meters at ordinary times, and the width of some river reaches can reach 1000 meters in flood period. The slope slows down, the flow velocity slows down, and the riverbed changes with scouring and silting.

From Chaershen to Longhuatu section of Baicheng city through gegenmiao, precipitation is concentrated from July to September every year, flash floods break out, the river carries a lot of sediment, filling the river, and the cultivated land along the downstream is often threatened by floods. In the west of the town, the river reaches the plain, the channel widens, the flow velocity slows down, the meander develops, and there are many beaches. The lower part of Taonan is the lower reaches. Sand dunes and sand hills, low-lying land and swamps are widely distributed. There are many willow shrubs on both sides. When the flood rises, the river flows out of the trough, and the ocean is one piece, connecting with the moon. The upstream is rich in hydraulic resources.

hydrographic features

According to the measurement of charson station, the average annual runoff of Taoer River is 1.74 billion cubic meters. The annual variation rate of runoff is large, and the difference between the maximum and minimum runoff is 12 times. The annual maximum peak discharge at Chaersen station reached 1780 m3 / s, which occurred on August 25, 1957. The average annual discharge is 26.3 cubic meters per second. The sediment concentration in the main stream is small, and the annual average value at Chaersen station is 15.2 g / m3. The erosion modulus is 33.5 T / km2. The average discharge at the estuary is 50 m3 / s, and the total runoff is about 1.6 billion m3. It is a river supplied by snowfall in winter and spring and rainstorm in summer and autumn. The freezing period can reach 4-5 months.

According to the hydrological records of KEYOUQIAN banner, the upper reaches of Tao'er River accumulate snow water in the Great Xing'an Mountains in spring, and receive rainfall in summer. The water source is abundant, and the annual average runoff is 891 million cubic meters. In summer, with the increase of rainfall collar, the flow increases continuously; in flood season, the river rises sharply, often overflowing the riverbed and submerging the beaches on both sides; in case of catastrophic flood, the river can submerge the first terrace, the width of the riverbed increases to 1-2km, and the flow reaches 1590m3 / s. After autumn, the river flow decreases with the decrease of rainfall. Every late October, the river begins to freeze, the ice period lasts for five months, and thaws in late April of the next year.

According to the hydrological records of Ulanhot in the middle reaches, the average annual discharge is 27.3 m3 / s, the maximum annual discharge is 305.78 m3 / s, and the minimum annual discharge is 0.83 m3 / s. The annual average amount of water from abroad is 860 million cubic meters, and the annual average runoff in China is 3

Chinese PinYin : Tao Er He