论文部分内容阅读
长江流域水资源及其特点长江是我国第一大河流,发源于青海省唐古拉山北麓,干流流经青海、西藏、四川、云南、湖北、湖南、江西、安徽、江苏、上海等十省、市、自治区,全长6,300公里,居世界第三位,沿程接纳了雅砻江、岷江、沱江、嘉陵江、乌江和汉江等主要支流,涉及到甘肃、陕西、河南、贵州、广西、浙江等六省、自治区,并与洞庭湖、鄱阳湖、巢湖、太湖等组成了庞大的长江水系.流域面积180万平方公里.年平均汇入东海水量为10,000亿立米,占全国总
The Yangtze River Basin is the largest river in China. The Yangtze River originates from the northern foot of the Tanggula Mountain in Qinghai Province. The mainstream flows through ten provinces including Qinghai, Tibet, Sichuan, Yunnan, Hubei, Hunan, Jiangxi, Anhui, Jiangsu and Shanghai. Municipalities and autonomous regions, with a total length of 6,300 kilometers and ranking the third in the world. The major tributaries such as Yalong River, Minjiang River, Tuojiang River, Jialing River, Wujiang River and Han River are accepted along the route, involving Gansu, Shaanxi, Henan, Guizhou, Guangxi and Zhejiang provinces Six provinces and autonomous regions, and with the Dongting Lake, Poyang Lake, Chaohu Lake, Taihu Lake, etc. formed a huge Yangtze River water system area of 1.8 million square kilometers. The average annual volume of East China Sea into the 10 billion cubic meters, accounting for the total