Xin River
| 信江 | |
| River | |
 Kuiwen Pagoda and Xin River in Shangrao
|
|
| Country | China |
|---|---|
| Region | Jiangxi Province |
| Part of | Yangtze River-Poyang Lake |
| City | Shangrao, Yintan |
| Primary source | Yushan River |
| - location | Huaiyu Mountains, Sanqing, Yushan |
| - coordinates | 28°59′N 118°05′E / 28.983°N 118.083°E |
| Secondary source | Feng River |
| - location | Tongbo Mountain, Pucheng |
| Source confluence | |
| - location | Xinzhou District, Shangrao |
| - coordinates | 28°26′24″N 117°57′40″E / 28.44000°N 117.96111°E |
| Mouth | |
| - location | Yugan |
| - coordinates | 28°36′40″N 116°40′35″E / 28.61111°N 116.67639°ECoordinates: 28°36′40″N 116°40′35″E / 28.61111°N 116.67639°E |
| Length | 360.5 km (224 mi) |
| Basin | 17,600 km2 (6,795 sq mi) |
The headwaters at 28°59'N 118°05'E are in the Huai Shan mountains in the north and eastern boundaries of its watershed from which the river flows west. Tributaries include the Yu Ya River, Rao River North, Feng River, Stone River (Lu River), smaller mountain streams, the Ge River and the Baita River. The lower Xin River accepts the Le-an River which joins it as a tributary and both contribute water to Poyang Lake at 28°36'40"N 116°40'35"E and ultimately the Yangtze River. It is 360.5 km (580 miles) long and drains an area of 17,600 km2 (6,795 sq. mi.) with a heavy sediment load. The Xin River Basin is bounded by the Huaiyu Mountains to the north and east and by the Wuyi Shan to the south and east. Huanggang Shan is 2,158 m tall, the highest mountain in Jiangxi Province, on the southern edge of the basin. The mountain passes of Fenshui Guan and Fengling Guan are on the southeastern edge of the Xin River Basin. Shan (山) and guan (关) mean mountain and pass in Chinese, respectively.
The Xin River can be divided into upstream, midstream and downstream sections. The upper reaches of river are in mountainous, undulating terrain. The middle reaches of the river basin gradually reduce in slope as the river flows west. In the Poyang Lake area downstream the river enters a flat open alluvial plain. Likewise, 40% of the Xin River basin, in the east end, is mountainous and the rest of the area is hills (35%) and plains (25%).
The Xin River Basin has a sub-tropical monsoon climate. Rainfall generally begins in April and gradually increases with some areas receiving up to 2000 mm or more annually. In July to September the weather is often controlled by a subtropical high, with local thunderstorms and rain, and eventually rain becomes scarce. The basin's average annual temperature in 18°C; annual average rainfall is 1845 mm with less in the eastern mountains than in the west.
The area of Poyang Lake is a major rice growing area while wheat and tea are grown in the upper reaches of the Xin River. The Xin River basin has a human population of more than 4 million. About 83% of the arable land in the basin is used for paddy fields.
From its headwaters the Xin River flows south from the vicinity of the city of Yushan, east through or near towns of Shangrao, Yanshan, Yiyang, Guixi, and Yingtan, Yujiang, Yugan, and then northeast into Poyang Lake east of the city of Nanchang.
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Wikipedia