General situation of Oujiang river basin

Longquan City, the birthplace of Oujiang River, and Yunhe County and qingtian county in the upper reaches are all in Lishui City. Lishui City, located at the junction of Zhejiang and Fujian provinces in the southwest of Zhejiang Province, is dominated by Zhongshan and hilly landforms, and the terrain is inclined from southwest to northeast, with Zhongshan in the southwest and low mountains, hills and valleys alternating. The northeast is dominated by low mountains, with Zhongshan and valley basins in the middle. The city's land area is 17298 square kilometers, of which mountainous areas account for 88.42%, cultivated land accounts for 5.52%, and streams, roads and villages account for 6.06%. It is an area with nine mountains, half water and half fields. The mountain range of this city belongs to Wuyishan system, mainly including Xianxialing, Donggong Mountain and Kuocang Mountain, which runs from southwest to northeast and extends to northwest, southwest and northeast respectively. There are 3,573 peaks at an altitude of 1 0,000m, including 244 peaks at an altitude of 1 0,500m, fengyangshan Huang Mao Peak at an altitude of 1 0,929m, and qingyuan county Baishanzu at an altitude of 1 0,856.7m, which are the first and second peaks in Zhejiang Province respectively. There are Oujiang River, Qiantang River, Feiyun River, Lingjiang River, Minjiang River and Jiaoxijiang River in the territory, which are parallel to the mountain range. Xianxialing is the watershed of Oujiang River and Qiantang River, Donggong Mountain is the watershed of Oujiang River and Minjiang River, Feiyun River and Jiaoxi River, and Kuocang Mountain is the watershed of Oujiang River and Lingjiang River. The terrain on both sides of each river is steep, the source of the river is short and steep, the riverbed is cut deeply, and the water level rises and falls sharply. It belongs to a mountain stream river with large drop and rich hydraulic resources. Oujiang River, the largest river in the city, originates from the northwest foot of Donggongshan pot cover tip at the junction of Qingyuan County and Longquan City, and twists and turns from west to east. Its main stream is 388 kilometers long, its territory is 3 16 kilometers long, and its drainage area is 12985.47 square kilometers, accounting for 78% of the total area of the city. Gongxian Lake, Jinshuitan Power Station Reservoir, located in Longquan Creek in the upper reaches of Oujiang River, covers an area of 43.6 square kilometers and is the largest artificial lake in the whole region. It belongs to subtropical monsoon climate zone, with mild climate, warm winter and early spring, long frost-free period and abundant rainfall.

Lishui has a long history. According to archaeological discoveries, there were human activities as early as 4000 years ago. In the ninth year of Emperor Yangdi (AD 589), Chuzhou was established. 1After liberation in May, 1949, Lishui District was established in June, and was abolished in June, 1952. All counties belong to Wenzhou, Jinhua and Quzhou respectively. In May, 1963 resumed Lishui Special Zone, covering six counties of Lishui, Qingtian, Jinyun, Suichang, Yunhe and Longquan. 1968 was renamed Lishui district, and 1978 established Lishui district administrative office. Among them, 1973 restored qingyuan county, 1982 restored Songyang County, 1984 established Jingning She Autonomous County, 1986 abolished Lishui County, 1990 abolished Longquan County, established Longquan City at county level, and abolished Lishui City in 2000. On July 19, 2000, the administrative office was abolished and Lishui City was established, which governs Liandu, Longquan, qingtian county, Jinyun, Yunhe, qingyuan county, Suichang, Songyang and Jingning counties.

Lishui is rich in natural resources and superior in ecological environment, and is known as "Zhejiang Green Valley". The quality of ecological environment ranks first in the province and the forefront of the whole country, and the public's satisfaction with the quality of ecological environment continues to rank first in the province. Lishui is rich in hydropower resources, and the city can develop 3.278 million kilowatts of conventional hydropower resources, accounting for about 40% of the exploitable amount in Zhejiang Province. In 2004, Jingning County was awarded the title of "Rural Hydropower Town of China" by the Ministry of Water Resources. In June, 2006, Lishui was awarded "the first hydropower city in China" by the Ministry of Water Resources. By the end of 2007, the total installed capacity of small hydropower (below 50,000 kilowatts) was1225,900 kilowatts, making it the first prefecture-level city in the province and even the whole country to realize the installed capacity of small hydropower of more than one million. All counties (cities, districts) in the city have realized rural hydropower electrification.

There are many tourist attractions in China, and there are 68 tourist attractions open to the outside world in the city, including national AAAA tourist attractions 12, namely Liandu Dongxiyan Scenic Area, Longquan Mountain Scenic Area, Qingtian Stone Carving Cultural Tourist Area in China, Qingtian Shimen Cave, Jinyun Xiandu Scenic Area, Jinyun Huanglong Scenic Area, Suichang Nanjianyan Scenic Area, Suichang Gold Mine National Park and Suichang County Shenlong Flying Scenic Area. There are 7 AAA scenic spots. Jinyun Xiandu is a national scenic spot, famous for its peaks and rocks. Lishui Nanmingshan-Dongxiyan, Jingning Daxie, Qingtian Shimen Cave, Songyang "Ruoliao-Andaihou" and Qingyuan "Shuangmiaojian-Yueshan" are five provincial-level scenic spots, which are at the city, county (city, district) level. There are not only Buqi Peak, karst caves, valleys and flowing springs in the scenic area, but also many cliff stone carvings, ancient buildings and religious temples. There are 83 nature reserves at all levels (including nature reserves) in the city, among which the forest ecosystem types are Longquan fengyangshan-Qingyuan baishanzu, Suichang Jiulong Mountain, Jingning Wangdong Mountain Wetland at the provincial level, and Ruoliao Village at the county level. There are 1 1 forest parks at or above the provincial level, including Baiyun Mountain, Dashan, Yunhe and Gongxian Lake in Liandu, Long Yuan in Longquan, Caoyutang in Jingning, Dayang Mountain in Jinyun, Kuocang Mountain and 8 peaks in Qingyuan. There are three national forest parks: Suichang, Qingtian Shimen Cave and Songyang Maoshan. There are many artificial lakes in Oujiang River basin, and the landscape is natural. Gongxian Lake is surrounded by "Summer Cave", "Eight Immortals Cave" and "Nine Tans and Eighteen Bays". Tankeng Reservoir (Thousand Gorges Lake) is another picturesque leisure tourist attraction in Lishui, with its magnificent scenery around the lake and Thousand Gorges.

The middle and lower reaches are in Wenzhou City, including Yongjia County, ouhai district, Lucheng District and Longwan District. They are located in the southeast of Zhejiang Province, bordering the East China Sea in the east, Fujian in the south, Lishui in the west and northwest, and Taizhou in the north and northeast. Urban area (Lucheng, Longwan and Ouhai) 1 187 square kilometers. The territory is trapezoidal from southwest to northeast. There are Cave Palace, Cangcang, Yandang Mountain and Baiyunjian in Taishun, with an altitude of 16 1 1 m, which is the highest peak in the city. In the eastern plain, artificial rivers crisscross. The main water systems are Oujiang River, Feiyun River and Jiaojiang River, and there are more than 50 large and small rivers/kloc-0 in China. Wenzhou's land coastline is 355 kilometers long and there are 436 islands. The coastline twists and turns, forming natural harbors such as rocks. It belongs to subtropical monsoon climate zone, with obvious alternation of winter and summer monsoon, moderate temperature, four distinct seasons and abundant rainfall. There are 55 productive berths in Wenzhou Port, including 7 deep-water berths above 10,000 tons. Natural deep-water ports such as Dongtou and Yueqing Bay have good development prospects, and 200,000-ton berths can be built 10. Wenzhou is a famous cultural city in Dong 'ou, and it was the capital of Dong 'ou in 192 BC. In 323 AD, Jianxian County was Yongjia County. According to legend, when the county was built, there were white deer holding flowers around the city, hence the name Lucheng. It was called Wenzhou in 675 AD. Known for its developed handicraft industry in history, it is one of the cradles of celadon. Paper-making, shipbuilding, silk, embroidery, lacquerware and shoe leather all played a certain role in the history of China. In the Southern Song Dynasty, it was turned into a foreign trading port, and it was known as "a prosperous sea head, never called a small Hangzhou". Wenzhou is the hometown of Southern Opera. /kloc-In the middle of the 0/4th century, The Story of the Pipa, a famous playwright, was translated into many languages and spread widely all over the world. Wenzhou is famous for its outstanding people. Yongjia School represented by Ye Shi in the Southern Song Dynasty and Jianghu Poetry School represented by "Yongjia Four Spirits", as well as Sun Yirang, Xia Nai, Xia and Su in modern times, have great influence on the history of Chinese thought, literature and science. Wenzhou has a long history and rich cultural relics. Ouyue culture, landscape culture and national culture have a long history. The annual output value of six major industries, including electrical machinery and equipment manufacturing, leather, fur, feather (velvet) and its products, electric power and heat production and supply, general equipment manufacturing, textile and clothing, and rubber and plastic products, exceeds 20 billion yuan. Wenzhou, known as "the southeast landscape is the best in the world", has many famous mountains and beautiful scenery. National key scenic spots include Yandang Mountain, nanxi river and Baizhangkuang-Feiyun Lake; National nature reserves include Wu Yanling and nanji island; There are 9 provincial-level scenic spots in Binhai, such as Xianyan, Yao Xi, Zeya, Yucangshan, Dongtou, Zhaliaoxi and Baizhang Mine, as well as 12 municipal-level scenic spots and1county-level scenic spots such as Chashan, Min 'gang and Tianzhu Temple. The total land area of the scenic spot is 2279 square kilometers, accounting for 20% of the city's land area. There are also 5 national forest parks and 8 provincial forest parks in the city. It is one of the most suitable areas for human habitation on the west coast of the Pacific Ocean.