Is Zhuhai bigger or Hong Kong bigger?

Zhuhai has a large area, 17 1 1.24 square kilometers, and Hong Kong 1 106.34 square kilometers.

Hong Kong is the abbreviation of "Hong Kong" and the People's Republic of China (PRC) Special Administrative Region. It is located in the south of China, east of the Pearl River Estuary, facing China and Macau across the sea in the west, Shenzhen in the north and Wanshan Islands in Zhuhai in the south. Its regional scope includes Hong Kong Island, Kowloon, New Territories and 262 surrounding islands, with a total land area of 65,438+065,438+. By the end of 20 18, the total population is about 7,482,500, which is one of the regions with the highest population density in the world and the life expectancy is the highest in the world.

Zhuhai is located in the south-central part of Guangdong Province, facing Hong Kong and Shenzhen across the sea in the east, Macao in the south, 9 kilometers away from Macao, and Hengqin New District faces Macao across the river. Jiangmen city in the west and Zhongshan city in the north. Gongbei, Jiuzhou Port, Zhuhai Port, Wanshan, Hengqin, Doumen, Wanchai, Zhuhai-Macao Cross-border Industrial Zone, Zhuhai Highway Port of Hong Kong-Zhuhai-Macao Bridge and other nine national first-class ports. It is the city with the largest ocean area, the largest number of islands and the longest coastline in the Pearl River Delta, and is known as the "City of Hundred Islands".

Extended data:

I. Hong Kong

1, location and area

The geographical coordinates of Hong Kong are east longitude 1 14 15' and north latitude 22 15'. It is located in the south of China, east of the Pearl River Estuary, facing China and Macau across the sea in the west, Shenzhen in the north and Wanshan Islands in Zhuhai in the south, about 200 kilometers away from Guangzhou. The regional scope includes Hong Kong Island, Kowloon, New Territories and 262 surrounding islands. Total land area 1 106.3 square kilometers, including 80.7 square kilometers on Hong Kong Island, 46.9 square kilometers in Kowloon and 978.7 square kilometers in the New Territories. Sea area 1648.7 km2. ?

2. Topography

The topography of Hong Kong is dominated by hills, and the highest point is Tai Mo Shan, which is 958 meters above sea level. There are not many flat lands in Hong Kong, about 20% of which belong to lowlands, mainly concentrated in the northern New Territories, namely Yuen Long Plain and Fanling Lowland, which are alluvial plains naturally formed by rivers. Secondly, the reclaimed land located in the Kowloon Peninsula and the northern part of Hong Kong Island expanded from the original narrow flat land. Although one Hong Kong resident is from Hong Kong Island, the largest island in Hong Kong is Lantau Island, which is more than twice the size of Hong Kong Island.

3. Climate

Hong Kong has a maritime subtropical monsoon climate with four distinct seasons and an average annual temperature of 23.3℃. The temperature may drop below 10℃ in winter and rise above 3 1℃ in summer. Rainfall is concentrated from May to September, accounting for about 80% of the annual rainfall. The annual rainfall is abundant, and the flowers are fragrant in all seasons. It is warm and foggy in spring, hot and rainy in summer, sunny in autumn and slightly dry and cold in winter.

In addition, the high-rise buildings in the urban area of Hong Kong are concentrated and densely populated, and the microclimate formed is easy to produce the heat island effect, which leads to the obvious temperature difference between the urban area and the suburbs. It is difficult to blow away the "suspended particles" in the air in the urban areas with high-rise buildings.

4. Water system

Hong Kong is in a humid subtropical environment with abundant runoff and developed surface water system. But the water system is limited and there are no big rivers. Besides Shenzhen River, which is the boundary river between Hong Kong and Shenzhen, there are mainly Chengmen River, Wutong River, Lincun River, Yuen Long River and Jintian River. Most rivers are less than 5 miles in length, and the velocity and discharge are closely related to seasonal rainfall, which is extremely unstable in the middle of the year.

It is difficult to maintain the flow or cut off the flow in dry season, and the riverbed is exposed or partially exposed. In the rainy season, it is easy to reach the full bank water level and flood. Shenzhen River originates from Niuweiling in Wutongshan, flows into Shenzhen Bay from northeast to southwest, and leaves Lingdingyang. The total length is 37 kilometers, and the drainage area is 3 12.5㎞? Which side of Shenzhen is 187.5㎞? , Hong Kong is 125㎞? . Wutong River is the main tributary of Shenzhen River.

Second, Zhuhai

1, location and area

Zhuhai is located in the south of Guangdong Province, on the west bank of the Pearl River Estuary, where the water from "Five Gates" (Jinxingmen, Modaomen, Jiti Gate, Hutiao Gate and Yamen Gate) enters the sea, located at 2148' ~ 22 27' north latitude and13 03 east longitude. Zhuhai is across the sea from Shenzhen and China and Hong Kong in the east, 36 nautical miles from China and Hong Kong, connected with China and Macau in the south, Xinhui District and Taishan City in Jiangmen in the west, Zhongshan City in the north, and 0/40km from Guangzhou/KLOC.

2. Geology and geomorphology

The exposed stratum in Zhuhai City is relatively simple. Except Quaternary, Paleozoic Cambrian, Devonian and Mesozoic Jurassic are scattered in the northeast and central and western regions, covering an area of ***759.09 square kilometers, accounting for 57.95% of the city's land area. The landform is obviously controlled by NE-trending and NW-trending tectonic lines. Zhuhai area is cut into block uplift and subsidence geomorphic units by NE-trending and NW-trending faults, forming block uplift mountains and subsidence plains.

The distribution direction of all fault-block mountains, lowlands and depression plains in fault-block mountains is NE-oriented, and the islands outside the Pearl River Estuary are also controlled by NE-oriented tectonic lines, and the three rows of islands are arranged in NE-oriented. The distribution of sedimentary basins outside the Pearl River Estuary is also northeast. However, the human sea waterway of the Pearl River is controlled by NW-trending structures, such as Modaomen Waterway and Niwanmen Waterway.

3. Climate

Zhuhai is located on the west bank of the Pearl River Estuary, bordering on the vast South China Sea, and has a typical maritime climate of subtropical monsoon. The annual temperature is relatively high, with an average annual temperature of 22.5℃ from 1979 to 2000. The climate is humid with an average annual relative humidity of 80%; There is abundant rainfall, with an average annual rainfall of 2061.9mm. ..

Zhuhai is often attacked by the south subtropical monsoon, with many thunderstorms. The southeast monsoon prevails from April to September, which is the rainy season, and the precipitation accounts for 85% of the whole year. The northeast monsoon prevailed from June 5438 to March the following year, and it was a dry season.

The annual average relative humidity of Zhuhai atmosphere is 79%. In early spring every year, it is drizzling, and the relative humidity of the air is relatively high, sometimes reaching 100%. The disastrous weather in Zhuhai is mainly typhoon and rainstorm, and winter in some years is affected by cold wave and low temperature. Typhoons usually occur from June to 10, with an average of about 4 times a year. The average number of typhoons that seriously affect Zhuhai is/kloc-0 per year, and the number of rainstorms is about 5.

4. Water system

Hydrological characteristics There are many rivers in Guangdong Province, mainly Xijiang, Beijiang and Dongjiang, and the confluence of the three rivers is the Pearl River. There are eight estuaries in the Pearl River system, namely Humen, Jiaomen, Hongqi, Hengmen, Modaomen, Jiti, Hutiaomen and Yamen from north to south. Zhuhai is located in the coastal zone of the lower reaches of Xijiang River, with many rivers in the territory. The distributary channels of Xijiang River are intertwined with local rivers, and it is a typical delta river network area.

Xijiang River is divided into five tributaries, Modaomen Waterway, Luozhou Creek, Hema Creek, Laolaoxi and Laolaoxi, and then flows into Modaomen, Jiti Gate and Hutiaomen, running through the whole territory from north to south and pouring into the South China Sea. Along the way, the main stream is connected with many lateral distributary confluence rivers, which have both natural distributary catchment and sluice drainage. All distributary channels along the Xijiang River have been surrounded by dikes, and the water flow has been effectively guided, and the channels have basically formed a stable plane shape.

Baidu Encyclopedia-Zhuhai

Baidu Encyclopedia-Hong Kong (People's Republic of China (PRC) Hong Kong Special Administrative Region)