Geographical location and natural conditions of the Pearl River Delta

It is an inverted triangle, with the bottom line starting from Sanshui City in the west, Guangzhou City in the east, and Shilong, with the apex at Yamenwan. The area is about 1. 1 10,000 square kilometers. Alluvium is thin, generally 20 ~ 30 meters. The ground fluctuates greatly, surrounded by hills, mountains and islands, accounting for 30% of the area.

The central part is plain, distributed in southern Guangzhou, northern Zhongshan, eastern Jiangmen and western Humen. The annual sediment transport capacity of the Pearl River system is more than 80 million tons, and the delta near the estuary is still extending to the South China Sea. In the estuary area, it can stretch 10 ~ 120 meters every year, which is one of the key reclamation areas in China.

Climate temperature:

It belongs to subtropical climate, and it is warm and humid all year round. The annual average temperature is 2 1 ~ 23℃, with the highest Leng Yue 13 ~ 15℃ and the hottest month above 28℃. There are frequent typhoons from June to 10, with concentrated rainfall and the hottest weather. The annual average precipitation exceeds1500mm.

The rainy season is synchronized with the high temperature season, with fertile soil and rivers, which is beneficial to agriculture. Below 200 meters above sea level, the terrain is flat. The weather is hot and rainy, mainly subtropical monsoon climate.

The tropical climate of South Asia in the Pearl River Delta is characterized by four unknown seasons, no snow in three winters, evergreen trees, evergreen fields and no frost. Zhu Kezhen said in his book "Special Climatology" that the tropics are places where "all seasons are summer, and it rains in autumn". He thinks that the south of Wuling Mountain is in the tropics. But the Pearl River Delta is in the subtropical zone.

Extended data:

Importance of the Pearl River Delta:

The Pearl River Delta is the largest plain area in Guangdong Province. The advanced manufacturing base and modern service base with global influence are the main areas for China to participate in economic globalization.

National scientific and technological innovation and technology research and development base, an important engine of national economic development, the gateway to the opening up of the South, and the leader of the development of South China, Central China and Southwest China, is one of the three largest urban agglomerations in China with the largest population concentration, the strongest innovation ability and the strongest comprehensive strength, and is known as the "Pearl of the South China Sea".

2015 65438+261October 26th, the World Bank reported that the Pearl River Delta surpassed Tokyo, Japan, and became the largest urban agglomeration in the world. Nine cities in the Pearl River Delta have joined hands with Hong Kong and Macao to build Guangdong-Hong Kong-Macao Greater Bay Area, and are tied with new york Bay Area, San Francisco Bay Area and Tokyo Bay Area as the world's four largest Greater Bay Area cities, becoming a world-class urban agglomeration. 20 16 Nine cities in the Pearl River Delta * * * absorbed 373,300 college graduates for employment.

Baidu Encyclopedia-Pearl River Delta