I. Pearl River Delta
The Pearl River Delta is located in the south-central part of Guangdong Province and was called guangzhou fu in Ming and Qing Dynasties. It covers 9 cities including Guangzhou, Foshan, Zhaoqing, Shenzhen, Dongguan, Huizhou, Zhuhai, Zhongshan and Jiangmen, with a total area of 56,000 square kilometers.
The Pearl River Delta is located in the south-central part of Guangdong Province, at the lower reaches of the Pearl River, bordering the South China Sea, with east longitude11245'-1350' and north latitude 213/'-2310'.
Second, the Yangtze River Delta urban agglomeration
The Yangtze River Delta urban agglomeration is located in the alluvial plain before the Yangtze River enters the sea, with Shanghai as the center. According to the 20 19 Yangtze River Delta regional integration development plan, the planning scope is officially defined as all the regions of Jiangsu, Zhejiang, Anhui and Shanghai.
Urban agglomerations in the Yangtze River Delta are located at 32 34 ′ to 29 20 ′ north latitude and 65 438+065 438+05 46 ′ to 65 438+023 25 ′ east longitude. The lower reaches of the Yangtze River are close to the Yellow Sea and the East China Sea, where rivers and seas meet and there are many coastal ports along the Yangtze River. It is an alluvial plain formed before the Yangtze River entered the sea. It involves 26 cities in three provinces and one city, with a land area of 2 1. 1.7 million square kilometers, accounting for about 2.2% of China.
Extended data
Topography of Pearl River Delta and Yangtze River Delta;
1. The western, northern and eastern parts of the Pearl River Delta are surrounded by hills and mountains, forming a natural barrier. The southern coastline is 1.059 km long and there are many islands. The Pearl River is divided into eight ports, forming a relatively closed and unique landform of "surrounded by mountains on three sides, facing the sea on one side, where the three rivers converge and the eight ports diverge".
2. The apex of the Yangtze River Delta is in Nanjing, Yangzhou (Gaoyou) and Yizheng, and it reaches Xiaoyangkou in the north. South bank of Hangzhou Bay. The elevation is mostly below10m, and the low hills (such as Huishan, Tianpingshan, Yushan and Langshan) are scattered, with an elevation of 200-300m.
There are a series of residual hills with an altitude of 100 ~ 300 meters in the Yangtze River Delta, most of which are composed of Devonian sandstone and Carboniferous and Permian limestone, and a few are composed of Yanshanian granite and trachyte. It covers an area of about 50,000 square kilometers.
Baidu Encyclopedia-Pearl River Delta
Baidu encyclopedia-Yangtze River Delta urban agglomeration