The Yangtze River (the Changjiang River; the Yangtze River) the Yangtze River is China's first river is the world's third longest .2001, the Chinese Academy of Sciences Institute of Remote Sensing Applications of experts under the auspices of Shao-Chong, using satellite remote sensing image measurement and calculation, measurement results are accurate to a decimal. The Yangtze River measured the length of 6211.3 kilometers. The team used its nearly 40 topics covered by the Yangtze River satellite images, satellite images are taken by the American earth resources satellite, resolution of 30 meters. Approach to the calculation of the centerline along the river channel on the Yangtze River is a vector of measured three times, then reverse the measurement three times, by the computer operator and geometric corrected many times the outcome.

The study, to when the song as the source of the Yangtze River measured the specific location for the source when the music longitude 94 degrees 35 minutes 54 seconds north latitude 32 degrees 43 minutes 54 seconds, 5042 meters above sea level counting. When the song (from the source to the bag very bar Gansu) 360.8 kilometers, Tuotuohe 357.6 kilometers, Tongtianhe 787.7 kilometers, the Jinsha River 2322.2 kilometers, Yibin 2740.6 kilometers below, we, generally referred to as 6300 kilometers or 6370 kilometers. Basin over a total area of 180 square kilometers, the average annual income of more than 100 million cubic meters of seawater is about 9600.River Basin between latitude 24 ° 30 '~ 35 ° 45', longitude 90 ° 33 '~ 112 ° 25', an area of more than 180 million square kilometers (not including the Huaihe River), about the country's total land area of 1 / 5. No. 3 in the world.It is a long history, along with the Yellow River, the cradle of the Chinese nation, nurtured generation after generation of sons and daughters, known as the "Mother River."

♦ Yangtze River Route
The Yangtze River from the northern source Tuotuohe Tanggula Mountains of Qinghai Province, southwestern border Laden winter snow-capped mountains, and the Yangtze River south to join the source when the music later known as Tongtianhe; Nanliu to Yushu County Batang River below the city of Yibin, Sichuan Province, said the Jinsha River between the ; Yibin, said the following before the Yangtze River, Yangtze River Yangzhou following formerly, the Huangpu River in Shanghai, said. Qinghai, Sichuan, Tibet, Yunnan, Chongqing, Hubei, Hunan, Jiangxi, Anhui, Jiangsu, Shanghai and other provinces, municipalities, in Shanghai into the East China Sea.There Yalong, Minjiang, Tuo, Jialing River, Wujiang, Xiangjiang River, Han River, Gan River, Qingyi, Huangpu River and other tributaries. Zhenjiang City in Jiangsu Province with the Beijing-Hangzhou Grand Canal intersect.

Over the Yangtze River in Yichang City for the upstream, more than beaches and swift rivers; from Yichang to Hukou, Jiangxi, between the mid-stream, meandering stream developed, more lakes (Poyang, Dongting Hunan and Hubei maximum); Hukou following the lower reaches of river wide, Eguchi there alluvial made of Chongming Island.Yangtze River water and water rich in resources, water storage period, Wan Dunlun can pass Wuhan, Yichang, a small wheel can be traced back.

The Yangtze River is China's densely populated, the most economically prosperous regions, major cities along the Yangtze River in Chongqing, Wuhan, Nanjing and Shanghai.

Available for the development of the Yangtze River water reached a total of 200 million kilowatts, is China's richest river water.The Yangtze River navigable mileage of up to more than 2800 kilometers, known as the "golden waterway," said.

The Yangtze River in Chongqing, Yichang, Hubei Fengjie below the majestic steep for the Three Gorges section of the river (Qutang, Wu Gorge, Xiling Gorge), the world's largest water control project in the Xiling Gorge Three Gorges Project on the middle section of Sandouping.