Xiaozi River, a first-class tributary of the Qijiang River and a second-class tributary of the Yangtze River, originated in Tiantianpu, Huaqiao, Nanchuan District, flowed into Xiajiankou, Banan District from the southwest, then flowed through Huashi Town, Banan District to the west, then entered Nanchuan City, then flowed through prodigy town, turned sharply south into Wansheng territory, then passed through Jungle Town, Zuo Na Jungle Valley and Qingxi River to the south, turned west, and reached Zuona River, Nantong Town and Liu Jia, Zuo Na. The basin area of Xiaozi River above the exit section of Wansheng District is 567.59 square kilometers, of which the river length of Wansheng District is 29.0 kilometers, the basin area is 330.03 square kilometers, the average riverbed width is 36 meters, and the drop is 142.5 meters. Xiaozi River has tributaries such as Jungle River, Qingxi River, Xiaohe River, Liujia River, Jiankang River and Wansheng Jinjigou.
Jungle ditch (Jungle River) originates from the cold wind trough in Nanchuan District and flows into Xiaozi River in Tianbao Cave. The total length of the river is 18.5km, the catchment area is 46.6km2, the average width of the riverbed is 10.3m, the gradient is 24.6‰, and the average annual discharge of the estuary is 0.89m3.
Qingxi River originates from Wangsan Temple in Wansheng Economic Development Zone and joins Xiaozi River at Lianghekou. The total length of the river is 1 1. 1km, the catchment area is 68.3km2, the average width of the riverbed is 8.8m, the gradient is 70.4‰, and the annual average discharge of the estuary is 1.67 m3/ s.
The river originates from Dashiba, Wansheng shilin town, flows through Shilin and Wandong Town, and joins the Xiaozi River at Xinmin Bridge. The total length of the river is 9.4 kilometers, the catchment area is 23. 1 square kilometer, the average width of the riverbed is 8.0 meters, with a gradient of 86.2‰, and the average annual runoff of the estuary is about 0.48 cubic meters per second.
Healthy River, also known as Shi Lian River, originates from Xiajiazui, Shilian, Nanchuan District, flows through Shi Lian, Jinqiao and Nantong Town, and joins Xiaozi River at Mabahe Bridge. Wansheng Economic Development Zone has an inland river length of 20.7 kilometers, a catchment area of 47.9 square kilometers, an average riverbed width of 8.7 meters, a gradient of 17.0‰, and an average annual runoff of the estuary of1.65,438+01m3/sec.
Jinjigou originates from Zhanjiashan, Wansheng Youth Town, flows through Youth Town and Nantong Town, and flows into Xiaozi River in Wentang. The total length of the river is 14.2km, the catchment area is 23.3km2, the average width of the riverbed is 5.9m, the gradient is 23.6‰, and the average annual runoff of the estuary is about 0.41m3/s.
The Western Qin Dynasty originated from the board carving motor cave in Wansheng Youth Town and merged into the Qijiang River at two estuaries. In Wansheng, the river length reaches17.2km, the drainage area is 64.25km2, the annual average flow is1.0m3/s, and the theoretical hydropower reserve is 433 1 kw.
Algae crossing the river originated in the holy city of Guizhou, from Tonggu Beach to Tang Xue, flowing through Guanba and merging into Qijiang River in Ganshui Town. Wansheng reach is 4.9 kilometers long, with a drainage area of 83.38 square kilometers, an average annual flow of 29. 1 m3 per second, and a theoretical hydropower reserve of 44 10 kw.
Liu Jiahe originates from Dashiba, shilin town, Wansheng, and flows through shilin town and Wandong Town from south to north. The inland river reaches in this area are 9.4 kilometers long and the drainage area is 70.55 square kilometers. The annual average flow 1.45 cubic meters per second, and the theoretical hydropower reserve is 8023 kilowatts.
Carp River originates from Tianwan, Nanchuan District, and flows into Zaodu River in Tongzi County, Guizhou Province. The inland river reaches in this area are 23.09 kilometers long and the drainage area is 83.38 square kilometers. The annual average flow is 3.02 cubic meters per second, and the theoretical water energy reserve is111/7kw.
Mudong River originates from Yangjiakou, Wansheng jinqiao town, and flows into the Yangtze River in Mudong, Banan District. The inland river is 9.2km long, with a drainage area of 1 1.28km2, an average annual flow of 0.26m3, and a theoretical hydropower reserve of 837kW.
Nanmu River originates from Zhaojiagang, Jinsishan, Wansheng jinqiao town, and joins Mudong River at Bajiaowu Base. The inland river reaches in this area are 8.24 kilometers long, with a drainage area of 10.4 square kilometers, an average annual flow of 0. 18 cubic meters per second, and theoretical hydropower reserves of 3 18 kilowatts. Wansheng Economic Development Zone belongs to the subtropical humid monsoon climate zone in Sichuan Basin, with mild climate, abundant rainfall, four distinct seasons, long frost-free period, warm winter and early spring, rainy early summer, hot summer and drought, rainy autumn, uncertain sunny and rainy winter, various disastrous weather and mountainous climate characteristics with great regional differences.
The regional situation is high in the east and low in the west, and the height varies greatly. The temperature changes with the year, and the vertical difference is obvious. Annual average temperature 18. 1℃, extreme maximum temperature 4 1.7℃, extreme minimum temperature -0.9℃. The average temperature in the hottest July is 27.9℃, and that in the coldest June is 7.9℃. The vertical temperature in this area varies greatly. The lowest point of Wentang Village in Nantong Town in the west is 265 meters above sea level, and the annual average temperature is about 18.5℃. The peak on the east side of Shizicao in Shimen Village, Heishan Town in the east is1973m above sea level, and the annual average temperature is only about 8.0℃, with a difference of1708m and 10℃. The frost-free period of the year is 339.2 days. Average annual rainfall 1277mm and average annual sunshine hours 1 10 1.6 hours.