Mulan River originates from Bijia Mountain, a branch of Daiyun Mountain in Dehua County, enters Huangkeng Village, Xiyuan Township, Xianyou County, traverses the south-central part of the city, flows through Wei Long, Daji, Licheng, Chengdong, Laidian, Gaiwei, Huating, Suburb, Quqiao, Huangshi and Hanjiang from northwest to southeast, and joins Xinghua Bay at Sanjiangkou. The total length of the main stream is 168km, and the rainwater collection area is over 2000km2. It is the largest river in central Fujian and one of the eight major water systems in Fujian Province. The larger tributaries of Mulan River system are Yanshou River, Zhongyue River, Daji River, Xikou River, Longhua River, Songban River, Xianshui River and Kuxi River.
Yanshou Creek, also known as Nanfeng Luxi, originated in Linquan Temple, zhongshan town, Xianyou County, where streams such as Jiulihu Creek, Juxi Creek, Changling Creek and Yucang Creek meet. After entering Putian Plain, Yanshou River is divided into many ditches, which often flow into towns such as Taitai, Suburb and Hanjiang River, and then into Mulan River. The total length of trunk and tributary is 189 km, and the rainwater collection area is 386 square kilometers. Luxi River originated in Huang Xiang at the junction of Yongtai County and Putian County, entered Xinjiaoshan in Youyang Town of Xianyou, and flowed from northeast to southeast through Zhuangbian, Baisha, Qiulu, Jiangkou and other towns to Xinghua Bay.
The total length of main tributaries in Luxi River is 150km, and the rainwater collection area is 709 square kilometers (662 square kilometers in Putian), ranking first in the province 1 1. Lushi River runs over mountains and mountains, with high gorge and dangerous beach, and large water level difference. The bottom elevation of Zhuangbian River is137.7m, which is only 7m away from the bottom of Jiangkou River, and it is extremely rich in hydraulic resources. As of May 2009, according to 1958, there are nonferrous metals such as iron, manganese, aluminum, zinc, nickel, silver, tungsten, calcium, uranium and copper. Non-metallic stone materials include kaolin, serpentine, talc, pyrophyllite, granite, potash feldspar, sillimanite, cryolite, crystal, bauxite, petroleum, alum and so on. Among them, lead-zinc mine reserves are 6 11.2000 tons, iron ore is more than 5 million tons, copper ore is more than 6 million tons, manganese ore is 840000 tons, nickel ore is 360000 tons, kaolin is 80 million tons, serpentine is 45.64 million tons, talc is 6.5438+0.76 million tons, and granite is about1. Underground mineral deposits are widely distributed in the city, and iron mines are mainly distributed in coastal areas such as Pinghai, Zhongmen, Dongzhuang, Lingchuan, Zhuangbian and Rinan Island. Yellow iron, brass, lead, zinc, uranium, manganese and frozen stone are mainly distributed in Xinxian County. Tungsten is distributed in Daitou, Dongqiao and Pinghai. Oil is distributed along the coast; Granite minerals are widely distributed in coastal hilly areas; Kaolin is distributed from zhongshan town to Bangtou Town and Gaiwei Town. Sillimanite in Shanting Town is a rare nonmetallic mineral in the world. At present, granite is the largest nonmetallic mineral.