用英语介绍黄河要有长度,地位,发源地,流经地,最终注入海洋以及黄河的3个优点急用阿,

The Yellow River or Huang He / Hwang Ho is the second-longest river in China and the sixth-longest in the world at 5,464 kilometers .Originating in the Bayan Har Mountains in Qinghai Province in western China,it flows through nine provinces of China and empties into the Bohai Sea.The Yellow River basin has an east-west extent of 1900 km and a north-south extent of 1100 km .Total basin area is 742,443 km².
The Yellow River is called "the cradle of Chinese civilization",as its basin is the birthplace of the northern Chinese civilizations and was the most prosperous region in early Chinese history.But frequent devastating flooding largely due to the elevated river bed in its lower course,has also earned it the unenviable name "China's Sorrow".
Early Chinese literature refers to the Yellow River simply as He (河),the word that has come to mean simply "river" in modern language .The first appearance of the name "Yellow River" (黄河) is in the Book of Han (Chinese:汉书;) written in the Western Han dynasty (206 BC–AD 9).The name "Yellow River" describes the perennial ochre-yellow colour of the muddy water in the lower course of the river.The yellow color comes from loess suspended in the water.
Sometimes the Yellow River is poetically called the "Muddy Flow" (simplified Chinese:浊流).The Chinese idiom "when the Yellow River flows clear" is used to refer to an event that will never happen and is similar to the English expression "when pigs fly".
Characteristics
The Yellow River is notable for the large amount of silt it carries—1.6 billion tons annually at the point where it descends from the Loess Plateau.If it is running to the sea with sufficient volume,1.4 billion tons are carried to the sea annually.
In modern times,since 1972 when it first dried up,the river has dried up in its lower reaches many times,from Jinan to the sea in most years,in 1997 for 226 days.The low volume is due to increased agricultural irrigation,by a factor of five since 1950.Water diverted from the river as of 1999 served 140 million people and irrigated 74,000 km² of land.The highest volume occurs during the rainy season,from July to October,when 60% of the annual volume of the river flows.Maximum demand for irrigation is needed between March and June.In order to capture excess water for use when needed,and for flood control and electricity generation,several dams have been built,but due to the high silt load their life is expected to be limited.A proposed South-North Water Transfer Project involves several schemes to divert water from the Yangtze River,one in the western headwaters of the rivers where they are closest to one another,another from the upper reaches of the Han River,and a third using the route of the Grand Canal.
Due to its heavy load of silt the Yellow River is a depositing stream,that is,it deposits part of its carried burden of soil in its bed in stretches where it is flowing slowly.These deposits elevate the riverbed which flows between natural levees in its lower reaches.Should a flood occur,the river may break out of the levees into the surrounding lower flood plain and adopt a new course.Historically this has occurred about once every hundred years.In modern times,considerable effort has been made to strengthen levees and control floods.
The Yellow River delta totals 8,000 square kilometers .However,since 1996 it has been reported to be shrinking slightly each year through erosion.