The second Songhua River?

The second Songhua River (the second Songhua River), namely the Songhua River in Liu Xi (Tianchi to Sanchahekou, Fuyu County, Songyuan City), was abolished on 1988 after the founding of the People's Republic of China. Because the Songhua River flows westward (that is, the Jilin section of Songhua River) is the historical source of the word Songhua River. It is against history to split in two. 1988 On February 25th, Jilin Provincial People's Government decided to abolish the name of the Second Songhua River and restore its original name. The original second Songhua River refers to the south source of Songhua River (Songhua River has two sources: the Nenjiang River in the north source originates from Ilhuli Mountain in Daxing 'anling. The second Songhua River in Nanyuan is the positive source of Songhua River, which originated from Baitou Mountain in Changbai Mountain. ) Except 540.8km3 belongs to Liaoning Province, the rest are in Jilin Province. The second tributary of Songhua River flows through 26 cities and counties such as Antu, Dunhua, Jilin, Changchun and Fuyu in Jilin Province, with a total length of 958km and a drainage area of 73,400 km2. The whole basin is high in the southeast and low in the northwest, and the rivers flow from southeast to northwest. The basin is rich in annual average precipitation and water resources, especially in the upper reaches where mountains are high and rivers are steep. The theoretical hydropower reserve of the second Songhua River is 802,900 kilowatts, and the river drop is 1556 meters ... The Songhua River main stream: the elevation of the junction of the second Songhua River and Nenjiang River is 128.22 meters. It flows into the Tonghe River, the main stream flows eastward, below the Tonghe River, northeast, through Zhaoyuan, Fuyu, Shuangcheng, Harbin, Acheng, Mulan, Tonghe, Fangzheng, Jiamusi, Fujin, Tongjiang and other cities and counties, and flows into Heilongjiang from the right bank about 7 kilometers east of Tongjiang County. The elevation of the estuary is 57. 16m. The total length of the main stream is 939km, and the catchment area is 6.5438+0.864 million km2. The river network on both sides of Songhua River is developed, with many tributaries, and there are 794 tributaries with catchment area greater than 50km2. Among them, 646 are 50 ~ 300 km2; There are 300 ~ 1000 km3 104 and 33 1000 ~ 5000 km3; There are 3 pieces of 5000 ~ 10000 km3; There are six, and the height is 10000km3. The drop of main stream is 78.4m, and the river gradient is relatively gentle, with an average of 0. 1‰. The ideal dam site for hydropower development in the main stream is Yilan Water Control Project. Mudanjiang, the right tributary of the middle reaches of the main stream, originates from Mudanling of Changbai Mountain, with a total length of 725km, a drop of 1.007m, an average river slope 1.39‰, steep slope and abundant water. Its theoretical hydropower reserves are 5 1.68 million kilowatts, accounting for 17.6% of the theoretical reserves in the main stream of Songhua River. [Edit this section] According to the second Songhua River and landform, the reach can be roughly divided into four sections, namely, the source section, the upstream section, the hilly section and the downstream section. From the source to the two estuaries where Erdaojiang meets Toudaojiang, it is the source section. The river is 255.7km long, with a drainage area of 18724km2. The whole reach is located in Changbai Mountain area. The whole section of the river has continuous mountains, dense forests, good vegetation, narrow river valleys, curved rivers, rocky river bottoms, rock ridges, reefs and deep pools. There are five main tributaries in the headwaters: Wudaobai River, Gudong River and Toudaojiang River. From Liangjiangkou to Fengman Power Station dam site, it is the upper reaches of the second Songhua River, with a length of 208. 1km and a catchment area of 24237km2, with a gradient of 0.4 ‰ ~ 1.6 ‰, showing a "V"-shaped valley. The larger tributaries Jiaohe River and Huifa River meet in this section of the river, and cascade hydropower stations such as Baishan, Hongshi and Fengman have been built. The dam site of Fengman Power Station to Mushi Estuary is the second Songhua River hilly reach, with a length of 190.7km, a catchment area of 9457km2, and the hills on both sides are 300 ~ 500 m above sea level. The larger tributaries, Wende River, Aolong River and Mushi River, are all located on the left bank, showing an asymmetric river network, and the river valleys on both sides are widened, making them the main agricultural areas. Mushi estuary to the second Songhua River estuary is the downstream reach, with a length of 170.9km and an area of 2 14 16km3. The river is wide, with many sand dunes along the coast. There are many forks, gullies and Jiang Xinzhou Island in the river, and wicker weeds are overgrown on the island in the middle of the river. In this section of the river, there is a big tributary Yinma River on the left bank and few tributaries on the right bank. According to the data of the Second Songhua River Estuary Control Station 1956- 1979, the average annual runoff of the Second Songhua River for many years is1620,000 m3, and the average annual runoff depth for many years is 209.6 mm..[ Edit this paragraph] The Second Songhua River, a first-class tributary, has five first-class tributaries in Guo Qian County, Songyuan City, Jilin Province, all of which are springs. There is surface runoff recharge in summer, and the water quantity in winter and summer is very different. 1. Lamagou, once called Xiaochengzigou. Originated at 600 meters north of Qianbashitun, Nong 'an County. Enter the second Songhua River at 1000 meters north of Zitun, a small town in Halamaodu Township, this county. It has a total length of 9 kilometers and a drainage area of 22.5 square kilometers. 2. A Mu Siergou, once known as Kalamugou and Namusigou. Originated in the north of Handaying Zitun, Nong 'an County1000m, and merged into the second Songhua River in Kalamutun, Haramaodu Township, Guo Qian County. The total length is 1 1.5km, and the drainage area is 46.5km2..3. Zhangjingyingzigou, formerly known as Wangfutungou and Xijiatungou. Originated in the southeast of Yi Shu Tun, Neiwangfu Station Town, Guo Qian County, it flows into the second Songhua River at the northeast 1000 meters of the nursing home in Halamaodu Township. It has a total length of 9.5 kilometers and a drainage area of 33.2 square kilometers. 4. Guojiadian ditch, once called Nala Street ditch, Sanchagou and Yangshugou. Originated in the county town of Wang Fu Station, 200 meters west of Qinglong Mountain Tun, and merged into the second Songhua River at 2000 meters northeast of Guojiadiantun Village in Hara Maodu Township. The total length is 10.5km, and the drainage area is 2 1km2. 5. Dongle Hegou was once called Denglou Kugou. Originated in the southwest of Tuxiang, Nileke County 1000m, and merged into the second Songhua River at the northeast of Dongtu Township1000 m.. With a total length of 15km and a drainage area of 82.2km2..[ [Edit this paragraph] The second Songhua River in history is called Kuaishui in Wei. Sui and Tang Dynasties called millet flour water. Liao called it Duck River, and later changed it to Huntongjiang River. Kim said the Songwa River. In Yuan Dynasty, it was called Songjiali River, Songjiali River and Huntongjiang River. It was called Songhua River in the early Ming Dynasty and Songhua River in the early Ming Dynasty. In Qing dynasty, it was called Songga Liula and Songga Liula. After the Republic of China, it was still called Songhua River. 1906, the second Songhua River was named for the first time in Songhuajiang Annals written by Russians. In the 18th year of the Republic of China (1929), China was called the second Songhua River.