Zhangzhou has a well-developed water system, with rivers running northwest and northeast. The mainstream is mostly perpendicular to the mountains, and the tributaries are parallel to the mountains, forming a grid-like water network. Rivers mostly originate from the territory and belong to the rivers flowing out of the mountain stream. Jiulong River is the largest river in Zhangzhou and the second largest river in Fujian Province. Abundant water, stable annual runoff, large seasonal variation during the year, large runoff in wet season and small runoff in orange season.
Dongxi, Zhangjiang, Luxi and other rivers have short flows, small basins and relatively flat rivers. There are 1 1 rivers in the city, and the basin area exceeds 100 square kilometers. Luxi and Jiu Feng streams flow into the Han River, and the rest flow into the sea in China.
Zhangzhou is rich in water resources;
The average total surface water resources in Zhangzhou city for many years is 65.438+07.8368 billion cubic meters, of which the surface water of domestic rivers is 65.438+06.5438+23.8 billion cubic meters, and the passenger water flowing into China from outside the city is 6.765438+03 billion cubic meters, with a per capita share of 4,280 cubic meters, which is rich in water resources. Surface water varies greatly from year to year, and its coefficient of variation is between 0.3 and 0.4, which is large in coastal areas and small in inland mountainous areas.
In a year, the change is even greater. April to September is the rainy season, and the runoff accounts for 77% of the whole year. The dry season is 10 to March of the following year, and the runoff only accounts for 23% of the whole year. The regional distribution of surface water, the protruding islands along the coast are all water-deficient areas, and there are no perennial rivers on Dongshan Island, so we have to rely on water transfer outside the island, and Zhangpu water resources are also in short supply.
Refer to the above? Baidu encyclopedia-Zhangzhou