General situation of Yong' anxi river basin

Yong 'anxi is the mother river of Xianju, starting from Anling in the west and Lingjiang in the east, until Jiaojiang flows into the East China Sea, traversing the whole territory of Xianju. Yong 'anxi is praised by experts as "a valley stream, crystal clear and never withered all year round". According to the analysis of water quality experts, it can reach the national first-class drinking water standard. The drifting section of Yong 'anxi River is 7.68 kilometers long, with bamboo rafts native to Xianju as tools. "Small bamboo rafts swim in the middle reaches of the stream and walk on both sides of the towering green hills". Take a bamboo raft down the river, or tread flat or cross the dangerous beach, away from the prosperity and noise of the city. Clear water, blue sky and distant mountains can make you taste the carefree warmth like water and the pastoral scenery on both sides of the strait. Also known as Daxi, it originated at the southern foot of Dapan Mountain in Pan 'an County, then entered the Tiantai boundary, passed through Longxi, Jietou, Xinzhong, Pingqiao, He Shan, Lize, Chengguan and Tantou, and left the country in Tanling Village and entered Linhai City. It is called Lingjiang after merging with Yonganxi Village, Xianju of Sanjiang Village, Jiaojiang after merging with Yongning River in Huangyan, and then enters the East China Sea. The main stream of Shifengxi is 132.70km long, which is 68.5km in Tiantai County. Total drainage area 16 10 km2, rooftop area11.54 km2. The river drop is 686 meters, and the average flow for many years is 20.53 cubic meters per second. The main peak of Pan Da1236m is the birthplace of Shifeng River.