Xixi is the positive source of Jinjiang, which originates from Xieyushan near Daxin Village, Zhou Tao Township, Anxi County (elevation 1352m) and flows through Zhou Tao, Yongchun County, Jiandou, Hokuto Konishi Hok, Hushu, Hutou, Jingu, Penglai, Kuidou, Chengxiang and Fengcheng in Anxi County. It was called Xixi only after it was accepted in Yuanxian Village of Chengxiang Town, and then entered Nan 'an County. The average annual runoff of Xixi is 3.65 billion cubic meters, accounting for about 65% of the total water in Jinjiang. The water level changes greatly in seasons, with the flood flow of 1935 reaching 8500m3/s and the low flow of 1963 reaching1.68m3/s. The natural drop is large, and the average river gradient is about 6.5 ‰; The average sediment concentration for many years is 0.73kg/m3；; There are many tributaries, and there are 9 tributaries whose basin area exceeds 100 square kilometers.
Dongxi originates from the southern foot of the Snow Mountain near Zhenqing Village, Jindou Township, Yongchun County (elevation 1386m) and flows through Jindou, Chengxiang, Penghu, Dapu, Shigu, Wulijie, Taocheng and Dongping Township, Yongchun County. Yongchun is called Taoxi, and Huna Yangxi is called Dongxi when it comes to Dongguan Bridge in Dongping Township. After leaving Dongguan and entering Nan 'an County, it passes through Shanmei Reservoir, Wharf, Meishan, Honglai, Kangmei, Meilin and Fengzhou, and flows into Xixi at Shuangxikou in Fengzhou, with a total length of 120km and a drainage area of 19 17km2, accounting for 34.% of the total area of Jinjiang River Basin. The average annual runoff of Dongxi is 65.438+0.40 billion cubic meters, and there are five tributaries, with a drainage area of 654.38+0.000 square kilometers.
The main stream of Jinjiang flows into Licheng District from Shuangxikou via Fengzhou, passes through Beifeng, pontoon bridge, urban area and Donghai, and flows into Quanzhou Bay in Xupu Village of Donghai Town, with a total length of 29 kilometers and a drainage area of 61/km2, accounting for 10.8% of the total area of Jinjiang River Basin. The average annual runoff of Jinjiang main stream is 5 1 0.30 billion cubic meters, with tributaries 1 strip and watershed area1square kilometer or more. The total length from the source of Xixi River in Jinjiang to Xupu in Hekou is182km, the total length of main tributaries is 320km, and the drainage area is 5629km2. According to the river valley nature and river flow of Dongxi, Xixi and the main stream, Jinjiang is divided into three sections: upper, middle and lower reaches: from Xixi and the source of Dongxi to Anxi Hutou and Yongchun, which are collectively called upstream, with many tributaries, large river gradient, rapid water flow and abundant hydraulic resources; From Hutou, Yongchun to Shuangxikou, it is collectively called the middle reaches, with gentle river slope and abundant water; Below Shuangxikou is the downstream, with few tributaries, small river gradient, wide riverbed, developed terraces on both banks and slow water flow. The tributaries of Dongxia River in Jinjiang, a tributary of Dongxia River in Jinjiang, include Taoxi, Huyangxi, Xishi, Taoxi and Luoxi, with an area of 100 square kilometers.
Taoxi: Originated in the southern foot of the snow-capped mountain near Zhenqing Village, Jindou Township, Yongchun County, it flows through eight towns in Yongchun County: Jindou, Chengxiang, Penghu, Dapu, Shigu, Wuli Street, Taocheng and Dongping. The entrance of Shanmei Reservoir in Dongguan is Dongxia, Jinjiang, with a total length of 6 1.75km, and the mainstream is Zhenqing Village Arch Bridge to Dongguan, 48 km, with a drainage area of 476 square meters. The average gradient of Taoxi River is 6.2‰ (to the hydrological station), and the widest part of the river bed 100 meters. Historically, you can reach Shigutan by boat, and 1958 can still reach Yilie Temple in the Confucian forest. Later, due to serious soil erosion and river bed siltation, the ship has lost its benefits. The larger tributaries of Taoxi are Hudongxi, Yanqing, Dali and Gaolongxi. Hudongxi originates from the junction of Ma 'an, Sukeng Township, Yongchun County and Xunzhong Town, Dehua County, and flows through Xili, Dongxing, Xiyuan, Du Kui, Tang Cheng and Huzhong. It meets Taoxi at Shuangxikou, with a total length of13.75km, and flows through Sukeng and Penghu towns. Yanqing Creek originates from Lianxing Village, Penghu Town, Yongchun County, flows through Xiyuan, Qianfeng, Penglai and Jianguo, and joins Taoxi in Xinqiong Village, Dapu Township, with a total length of 8 kilometers. Dali Creek originates from Dashan, Dapu Township, Yongchun County, flows through Dazhong and Jinxing, and joins Taoxi at Qiaotou Palace, with a total length of 8 kilometers. Gaolongxi has two sources: the east source is in Wuding, Wufeng Township, which flows through Meilin, Houlong, Putou, Sheshan and xi 'an, and flows into Taoxi under Xi 'an Bridge in Wulijie Town, with a total length of11.5 km; Originated in the west of Kameyama Mountain in taocheng town, it flows through Jiangxi, Wuda and Wudong, and meets Gaolongxi in Wulijie Town, with a total length of 4.5 kilometers.
Huyangxi: Originated in the west of Xiyuan Township in Xianyou County, it flows through Bixia Township in Dehua County and enters Yongchun County from Shuangkeng. In Huyang Town, water from Shuanggangkeng, Yuzhuxi, Taomeikeng, Jinxi, Jiefuxi and Wulingkeng enters Dongping Town, turns to Nabina Shangbanxi in the southeast, then turns to the southwest, and joins Taoxi under Waibinawai Mountain Stream and Dongguan Bridge. Huyangxi has three main tributaries: Jinxi, Jiefuxi and Waishanxi. Jinxi originates from the cold water pit in the southwest of Bixia Township, Dehua County, enters Yongchun territory, passes through Bantou, Huyang Town, and joins Huyang Creek on the Infinite Bridge, with a total length of 9.5 kilometers. Fujiexi originates from Jinlong Village, Fu Jie Township, Yongchun County, flows through Yangwei, Lindong and Xixi, and joins Huyangxi in Longshan, with a total length of16.5km.. Waishan, also known as Meng Xi, originates from Baishan and Shicuo, flows through Waishan and Dongping Township, joins Nafuxi, Cao Yang Pit and other tributaries, and joins Huyangxi in Waibi Village of Dongping Township.
Xi Shi: Originated from dolomite in Xiushan Town, Yongchun County, and flowed into Shishan Town, Nan 'an County from northwest to southeast. Feng Yupeng Village originates from another tributary of Jiangjun Mountain in Penghua Township and flows into Dongxia River in Jinjiang via Matou Town, with a total length of 44 kilometers and a drainage area of 260 square kilometers. The average river gradient is 6. 1‰, and the riverbed is 30-80 meters wide. Xi Shi is named after flowing through the lion mountain. Shixi, also known as Wharf Creek, flows through Wharf Town and is an ancient inland waterway. Wharf Street was the material distribution center in the north of Nan 'an at that time.
Taoxi: Originating from the Shanmen of Shishan Town in Nan 'an County and Chaotian Mountain at the junction of Jin Tao Town and Meishan Township, it flows through Jin Tao Town and meishan town from west to east and joins Dongxia River in Meishan Village, with a total length of 22 kilometers, a drainage area of 1 19 square kilometers and a river gradient of 8.7‰. Taoxi is named after the sandy beach in the stream contains pyrite and mica flakes. The ancients mistakenly thought it was sand, so it was named after panning for gold in the stream. Grass is everywhere on both sides of Taoxi River.
Luoxi: Originated in Puding Mountain, Luoxi Township, Licheng District (elevation 753.5m), it flows from east to west into Luodong Town, Nan 'an County, reaches Nafeiyun Bamboo Jianshui in Tuzhai Village, flows southwest through Luodong Town and meishan town, and enters Jinjiang Dongsha in Yuanwei Village, Meishan, with a total length of 4 1km, a drainage area of 249 km2, a river gradient of 7.8‰ and a downstream riverbed width of 30. Jinjiang Xixi, a tributary of Jinjiang Xixi, covers an area of 100 square kilometer, including Yiduxi, Lanxi, Longtan, Kengzikou, Shuangxi, Jinguxi, Longmen, Chaobixi, Yingxi and Dong Tian.
Yiduxi: Originated in Rentian, Xianyou Village, Yidu Township, Yongchun County, it flows through Xianyou Village in the southeast, connected with Xianyou Pit Water in the southwest, and reached Sancunxi in Zhongbana; There are six pits in the south and Huangtianxi in the north. Through Longjiao Pavilion to Xiakoupo, it flows into Weixi in Anxi County, then turns northeast to Sanling, north to Dabanxi, then turns southeast, flows eastward through Fudou to Hengkou to join Dahengxi, and enters Xiao Heng in Jiandou Town, Anxi County. The total length is 44 kilometers, the drainage area is 4 16 square kilometers, and the river slope is 1 1.2‰. The whole basin is densely forested. Dahengxi is the main tributary of Yiduxi, which originates from Dakeng Village, Xiayang Town, Yongchun County, joins Pencun Stream via Dahengfeng Mountain, passes through Tanasikeng Stream in the southeast, turns west to south to Changting, and then flows into Yiduxi to Hengkou Village in the southwest, with a total length of 24.4 kilometers, a main stream length of 13.4 kilometers and a drainage area of 148. There are dense forests in the basin, and before 1960, the rafts were unblocked all the year round.
Lanxi: It is the largest tributary of Jinjiang Xixi, also known as Guanqiaoxi. Originating at the southern foot of Lianhua Mountain in Lutian Township, Anxi County (elevation 1225.2m), it flows through Lutian, Xiping, Huqiu and Guanqiao, and joins Xixi at Yuan Xian Ferry in Chengxiang Township, with a total length of 52km, a drainage area of 5 1km2 and a river gradient of 65,438. The main tributaries are Houge River, Neishe River, Fangting River, Zhuyuan River and Longkou River.
Longtanxi: also known as Changkengxi, originated from Tongfa Mountain near Shanping, Changkengkeng Township, Anxi (elevation 1504.8m). It flows through Changkeng, Shangqing and Penglai, and flows into Xixi at the source of Jingu Township, with a total length of 55 kilometers, a drainage area of 4 16 square kilometers, a river channel ratio of 1 1.4‰, rapid water flow and abundant hydraulic resources. There are many hydropower stations along the river. The main tributaries are Houxi, Yumeixi, Qingyang and Xinlouxi.
Kengzikouxi: There are two sources: one comes from Qishan, Guiyang Township, Yongchun County, and flows southwest, with Wentaixi and Xinlingkeng in the east and Maochunxi in the north; Secondly, it originates from Tushan, Xiayang Town, Yongchun County, flows to the southeast, and reaches Yao Xi at Moshikeng. The two sources meet at the entrance of Kengzaikou Township, and then pass through the tributaries of Kengzaikou, Yudou Township, Nashiyuankeng, Yudou Creek and Fudi Creek to the south, and turn southwest to enter Jiandou Town of Anxi County, where it joins Jinjiang Xixi at Jukou, with a total length of 42 kilometers, a drainage area of 290 square kilometers and a river gradient of 14.6‰. Kengzikou in Anxi County flows through Chaobi and Jukou, also known as Chaobixi and Jukouxi.
Shuangxi: Another name is Jiandou River. Originated in Pantian Village, Gande Township, Anxi County, with an altitude of1301.4m. The southern foot of Shimenkan flows through Gande and Jiandou, and joins Jinjiang Xixi near Jiandou. Qiyangxi, the main tributary along the coast of Cheng Na (originating in the northwest of Changkeng Township and flowing through towns such as Changkeng, Gande and Jiandou), has a total length of 20km, a drainage area of1.27km2 and a river gradient of 29.6‰.
Jinguxi: Another name is Fokouxi. There are two sources: the southern foot of Dalu Mountain near Dongxi in Jingu Township, Anxi County (elevation 1074.4m) and the southern foot of tianmashan in Dabu Township, Yongchun County (elevation 838.7m), which flows into Xixi in Jinjiang from northwest to east through Dongxi in Jingu Township and Meiyun to Jingu, with a total length of 19km and a drainage area of/kloc-0.
Longmenxi: Also known as Bantouxi, it is the largest tributary of Lanxi. Originated in Shuiyang Mountain (756m above sea level) in the northwest of Tongan County, Xiamen, it first flows 4.5km from southwest to east, then goes north, enters Longmen Township, Anxi County, and flows through Longmen, Guanqiao and other towns. There are three main tributaries along the way, Naguixi, Xiandixi and Liaoxi, which meet Lanxi at Guanqiao, with a total length of 27km, a drainage area of 203km2 and a river gradient of 13.5‰.
Chaobixi: Also known as Jukouxi and Kengzikouxi, it is the third largest tributary of Anxi. Originating at the southern foot of Tianhu Mountain at an altitude of 1.207 meters in Yongchun County, it flows from north to southeast, passes through Yongchun to the ocean, enters Chaolan in China, and joins the main stream of Xixi River at Jukou, with a total length of 42 kilometers and a drainage area of 290 square kilometers.
Yingxi: Yunding Mountain (elevation 1 175m) originated at the junction of Xiangyun Township in Nan 'an County and Longmen Township in Anxi County. It flows through Xiangyun, Du Ying and Luncang from southwest to northeast, and flows into Jinjiang Xixi at Louweizhai of Luncang Town, with a total length of 19 km and a drainage area of 147 km2. Bantou Reservoir (storage capacity10.64 million cubic meters) is built upstream.
Dong Tian Creek: Also known as Blue Creek. Qinshan Mountain (elevation1095.4m) and Tiefeng Mountain (elevation 878.6m) originate at the junction of Dongtian Township in Nan 'an County and Xinwei Township in Tong 'an County, and flow through Dongtian and Messi from southwest to northeast, and join Xixi River in Jinjiang, with a total length of 30km, a drainage area of173km2, a riverbed width of 20-80m and a river ratio. The upper reaches of Dong Tian Creek is a rainstorm area in Nan 'an County, with an annual rainfall of over 2000mm and abundant water. Jinjiang tributaries There are only 99 tributaries in Jinjiang, with a drainage area of 100 square kilometers. Ninety-nine creek, also known as Pengxi, has two sources. Beiyuan originates from Houyang, Dongtian Township, Nan 'an County, and flows through Dong Tian, Messi, Fengzhou, Guanqiao and other towns. After crossing Guanqiao, the forest entered cizao town, Jinjiang County. Nanyuan originated in Huangshan Mountain, Guanqiao Town, Nan 'an County, and flowed through Guanqiao, where it entered Neikeng Township, Jinjiang County. The north and south tributaries flow eastward at Xiaguan Road in cizao town, which is called Meixi, then pass through Chidian, Chendai and other towns, and enter the sea in the lower reaches of Jinjiang, with a total length of 47 kilometers, a drainage area of 354 square kilometers and a river slope of 65,438 0.6 ‰. Along the way, it accepts tributaries such as Qixi, Qianpuxi, Tangpuxi, Daoqiaoxi, Xiazao and Zihuxi.