What is the problem with the Pearl River Delta?

In addition to urban floods, the PRD also faces saltwater intrusion near the river mouth of the Pear River. This has been a threat to the water security of nearby cities, in particular Zhongshan, Zhuhai and Macau.



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The Pearl River Delta area has been identified as possibly the biggest pollution hot spot in East Asia, with major impacts spilling over into the South China Sea.

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Although the Pearl River Delta has the smallest population, it has the highest income per capita. Historically, the PRD thrived in commerce and trade because of its location. It was an important stop on the ancient Silk Road, immortalizing China's role in ancient trade.

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The Mississippi River Delta, the largest in the U.S., is a melange of the rivershed and its associated river and streambeds, farmland, urbanized areas, lakes, and estuaries.

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Lake Borgne is a lagoon of the Gulf of Mexico in southeastern Louisiana. Although early maps show it as a lake surrounded by land, coastal erosion has made it an arm of the Gulf of Mexico. Its name comes from the French word borgne, which means one-eyed.



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River deltas are important in human civilization, as they are major agricultural production centers and population centers. They can provide coastline defense and can impact drinking water supply. They are also ecologically important, with different species' assemblages depending on their landscape position.

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