What are the causes of flooding in Chang Jiang?

Examples of Flooding in the World

Flooding in Chang Jiang
1931: Starting from the beginning of summer, repeated torrential rain in Chang Jiang resulted in devastating floods. The floods ruptured most of the embankments along the rivers and lakes, inundated 659 counties in 16 provinces, and swallowed up all the cities along the Changjiang River, destroying 1.78 million homes and affecting 28.5 million people, including 145,000 killed. The direct economic losses reached 1.38 billion yuan. Even worse, epidemic diseases prevailed after the floods. The flood victims, including those killed by famine and illness, were too numerous to be buried in the year.
1954: The rainfall during June and July on the middle and lower course of the Chang Jiang doubled the average of the same period in past years, causing unprecedented flooding over 7.8 million acres of farmland, affecting 18.88 million people. The economic losses were nearly 10 billion yuan, and 30,000 people lost their lives.
2002: More than 200 people died, which had affected more than 30 million people across the country, with waters seeping towards the capital, Beijing, according to authorities. Officials said that 205 people were killed, scores were missing, while 210,000 residents evacuated in one province alone, with crops and homes destroyed after a week of rains.




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Chang Jiang

Longest river of China and Asia, and third longest in the world, flowing about 6,300 km/3,900 mi from Qinghai on the Tibetan Plateau to the Yellow Sea. It is a major commercial waterway and, with its tributaries, is navigable for 30,000 km/18,640 mi; Yichang is considered the head of navigation, but ocean-going vessels can reach inland as far as Wuhan. The whole drainage basin covers a vast area of over 1,827,000 sq km/705,400 sq mi, and produces about 70% of China's rice crop. Work began on the Three Gorges Dam on the river in December 1994, with the purposes of controlling flooding and generating about 10% of the country's electricity supply.

The Chang Jiang has 204 km/127 mi of gorges, below which lies the Gezhouba Dam, just upstream of Yichang in Hubei province. The Gezhouba was the first hydroelectric dam on the river, and is China's largest completed facility; its output will be overtaken by the Three Gorges project (scheduled for completion 2003), which will be the world's largest dam and hydroelectric scheme.

In the summer of 1998 the Chang Jiang flooded killing 3,000 people and destroying 5 million homes.

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Examples of Flooding in the World



Flooding in Chang Jiang

1931: Starting from the beginning of summer, repeated torrential rain in Chang Jiang resulted in devastating floods. The floods ruptured most of the embankments along the rivers and lakes, inundated 659 counties in 16 provinces, and swallowed up all the cities along the Changjiang River, destroying 1.78 million homes and affecting 28.5 million people, including 145,000 killed. The direct economic losses reached 1.38 billion yuan. Even worse, epidemic diseases prevailed after the floods. The flood victims, including those killed by famine and illness, were too numerous to be buried in the year.

1954: The rainfall during June and July on the middle and lower course of the Chang Jiang doubled the average of the same period in past years, causing unprecedented flooding over 7.8 million acres of farmland, affecting 18.88 million people. The economic losses were nearly 10 billion yuan, and 30,000 people lost their lives.

2002: More than 200 people died, which had affected more than 30 million people across the country, with waters seeping towards the capital, Beijing, according to authorities. Officials said that 205 people were killed, scores were missing, while 210,000 residents evacuated in one province alone, with crops and homes destroyed after a week of rains.




Please give me 24 points!!!!!!!

Flooding in Chang Jiang

1931: Starting from the beginning of summer, repeated torrential rain in Chang Jiang resulted in devastating floods. The floods ruptured most of the embankments along the rivers and lakes, inundated 659 counties in 16 provinces, and swallowed up all the cities along the Changjiang River, destroying 1.78 million homes and affecting 28.5 million people, including 145,000 killed. The direct economic losses reached 1.38 billion yuan. Even worse, epidemic diseases prevailed after the floods. The flood victims, including those killed by famine and illness, were too numerous to be buried in the year.

1954: The rainfall during June and July on the middle and lower course of the Chang Jiang doubled the average of the same period in past years, causing unprecedented flooding over 7.8 million acres of farmland, affecting 18.88 million people. The economic losses were nearly 10 billion yuan, and 30,000 people lost their lives.

2002: More than 200 people died, which had affected more than 30 million people across the country, with waters seeping towards the capital, Beijing, according to authorities. Officials said that 205 people were killed, scores were missing, while 210,000 residents evacuated in one province alone, with crops and homes destroyed after a week of rains