Pearl River delta plain

The Pearl River Delta Plain is Mesozoic Since then, Earth's crust nether mantle Rising, causing the earth's crust to crack, which causes it to fracture and sink, creating a huge depression, holocene Transgression, seawater flooded into the depression, forming a vast drowned valley bay, attracting the east, west and North rivers into the three rivers.

Especially among them Xijiang River For big, it originated from Yunnan (Province) Benefit from Maxiong Mountain Down, 2,129 km long ( Bac Giang 582 km, Dongjiang 508 km). It is the fourth longest river in China in terms of its flow across the country Yangtse River , The Yellow River , Amur River After). Due to its location in the tropics, abundant flow, large vegetation coverage on the surface and less sand, it has become an excellent river in China with convenient navigation.

This drowned cove is less than 50 meters deep and surrounded by mountains and hills, typhoon , Storm surge The invasion is not strong, conducive to Sanjiang sand and mud deposition. Although the sand content of Sanjiang is only 3 ‰, the flow is rich, and the annual inflow of sand and mud reaches 100 million tons, so delta The speed of development is also large. Still expanding. For example, the estuary area can be extended by an average of 10 to 120 meters per year, becoming one of the key reclamation areas in China.

However, the Gully Bay has not yet been filled, such as the vast trumpet mouth Lingdingyang Bay , Humen interior Lion Ocean Today, the delta of the West and North Rivers is clearly separated from the delta of the East River. West, cliff gate and Yinzhou Lake waterway also Tanjiang plain Separate from the West and North River deltas. Therefore, the Pearl River Delta is actually a combination of several deltas, so it is called" Complex delta ".

Guangzhou is Kwangtung province Provincial capital The State Department located it Cosmopolitan city , internation Commerce and trade Centre , internation Comprehensive transportation hub , National central city , nation synthesis sex Gateway city , National historical and cultural city . Guangzhou has been a city since the 330s The Maritime Silk Road The main port of The tang dynasty The song dynasty Period become China first Dagang became China in the early Ming and Qing Dynasties sole The port of foreign trade, is the world's only two thousand years of enduring port, is "enduring. The Maritime Silk Road The East birthplace ".

Offices in Guangzhou by country The total consulate The number reached 53, ranking second in the country. Guangzhou Headquarters economy The development capacity ranks among the top three in the country. Invested in Guangzhou Foreign-funded enterprise More than 20,000, Fortune 500 There are 236 enterprises. Guangzhou Listed enterprise The number reached 118, and there were 154 listed enterprises on the "New Third Board". The tertiary industry accounted for 66.77% of GDP, ranking among the top three in the country. Total retail sales of consumer goods ranked third in China. Per capita Retail sales of consumer goods Live nationwide first position. Livelihood development index Ranked first in the country for two consecutive years.

From 2010 to 2015, Guangzhou was attacked five times Forbes 评为中国大陆 best Commercial city Number one. Guangzhou Port cargo throughput In the South China Number one and number five in the world. Guangzhou Baiyun International Airport Are the three largest in China internation Aviation hub One of them. The scale of cross-border e-commerce ranks first in China. Positive formation International shipping center , Logistics center , Trade center and Financial service System integration and development pattern. Guangzhou Act National innovation demonstration zone It brings together more than 70% of the province's scientific and technological personnel, 95% of the doctors, 97% of the national key disciplines, 80% of colleges and universities, 28 new research and development institutions, 813 engineering technology research and development centers, 337 key laboratories, the number of all all province first . Guangzhou has been built South China scale Max the Technology business incubator Cluster, 7 national science and technology business incubators were Ministry of Science and Technology Rated excellent, number ranking The whole country first . Guangzhou The Tianhe-2 supercomputer 6 in a row world first .

Hong Kong ( Hong Kong The Hong Kong Special Administrative Region of the People's Republic of China is the largest and busiest in the world Cosmopolitan city One of them, Asia Second largest city in the world after New York , London , Tokyo The fourth largest financial center," The four Asian Tigers "One of them. Be located in Pearl River Estuary East, and Guangdong Province Shenzhen every Shenzhen River Look at each other, on the verge South China Sea . Between 1842 and 1997, Hong Kong served as Britain The colony; On July 1, 1997, China Restoration of sovereignty over Hong Kong. Implemented in Hong Kong capitalism System, with clean government, good security, freedom Economic system And the perfect rule of law is famous in the world. Hong Kong is the center of cultural convergence between China and the West, and is one of the safest, richest and most prosperous regions in the world. Hong Kong is an important international economic, financial and shipping center and one of the most competitive cities in the world. skyscraper The number ranks first in the world, the economic freedom ranks first in the world, known as" Pearl of the Orient ". World War II Since then, Hong Kong's economic and social development has been rapid, not only becoming a" The four Asian Tigers It is one of the richest, most economically developed and highest living standards in the world.

Macau ( Macau (is one of China Special administrative region It is also a major city in the Pearl River Delta. North neighbor of Macao Zhuhai It faces Wanchai and Hengqin in Zhuhai City to the west and east Hong Kong 60 kilometers apart, separated by the Pearl River estuary. Macau is a free port, too world Four elements (earth) Gambling town One of them. After Macao returned to China on December 20, 1999, economy Growing rapidly, more prosperous than ever, yes One country, two systems A model of success.

Shenzhen, also known as" Pengcheng County ", national economic center city, national innovative city, International Garden City One of China's four major cities, four First-tier city One of them. Shenzhen is a sub-provincial city, separately planned city, China's first special economic zone. Shenzhen has developed into an international city with certain international influence, creating the world-renowned "Shenzhen speed", and has the reputation of "the City of Design", "the City of Piano" and "the City of technology". Air port . Shenzhen is adjacent to Hong Kong and has the largest number of entry and exit ports in China. It plays an important role in China's economy.