Which line of city does Zhongshan belong to?

Zhongshan City

1, Introduction

Zhongshan City, which belongs to Guangdong Province and was called Xiangshan in ancient times, is one of the five prefecture-level cities without districts in China. Located in the south-central part of the Pearl River Delta, on the west bank of the Pearl River Estuary, bordering Guangzhou in the north and Hong Kong and Macao.

Zhongshan is a famous national historical and cultural city and the hometown of the great Dr. Sun Yat-sen. Xiangshan culture, which originated in Zhongshan, is an important source of modern culture in China, enjoying the reputation of the hometown of folk art (Cantonese opera) and the hometown of overseas Chinese? [1], together with Shunde, Nanhai and Dongguan, is called the Four Little Dragons of Guangdong.

2. Geographical environment

Location context

Zhongshan City is located in the south-central part of Guangdong Province, at the mouth of the Pearl River. Geographical coordinates: east longitude 1 13 9'2 "to1346', north latitude 221'12" to 22 46'. The whole city covers an area of 1.80 square kilometers, facing Shenzhen and Hong Kong across the sea in the east and 5 1 nautical mile from zhongshan port to Hong Kong. It is bordered by Zhuhai in the southeast, adjacent to Macau, and 60 kilometers from Shi Qi to Macau; The west and southwest are the same as Jiangmen City. Xinhui city and? Doumen county is a neighbor; North and northwest of Guangzhou and Nansha District? Shunde city is connected; Ma 'an Island and Damao Island are located in the east and west of the city along the Pearl River Estuary.

topography

The terrain of Zhongshan City is like a clenched fist, long and narrow from north to south and short and narrow from east to west. Terrain configuration is divided into northern plain, central mountain and southern plain. The plain area accounts for about 68% of the city's area, the mountains account for 25%, and the rivers account for 7%. The city is surrounded by water on three sides, and its main waterways flow from northwest to southeast. More than 5,000 rivers and artificial irrigation and drainage channels are criss-crossed, interconnected and distributed in a radial fan shape with sharp corners as the apex. The topography of Zhongshan is formed by long-term climate change and wind and rain erosion on the basis of South China paraplatform, mainly alluvial plain, with low hills and terraces scattered in it. The basement of the plain is granite, which belongs to silting and floating origin.

Climatic characteristics

Zhongshan is located in the south of the Tropic of Cancer, on the northern edge of the tropics, with abundant sunshine, sufficient heat and warm climate.

There are many kinds of meteorological disasters in Zhongshan city, which may occur all year round, including cold wave, low temperature frost, high temperature and heat, tropical cyclone; There are both storms and floods, as well as droughts and salty tides; There are not only lightning disasters, but also strong convective weather such as tornadoes and hail. Major meteorological disasters, such as torrential rain, frontal attack of tropical cyclone, catastrophic flood, severe drought and severe chilling injury, also occur from time to time in Zhongshan.

3. Natural resources

solar energy resource

The average total solar radiation is 445 155.4 Joule/cm2, which is one of the regions with rich solar radiation resources in Guangdong Province. ?

water resource

Zhongshan is a water-rich area, with annual rainfall of 1.738 mm and precipitation of 2.91.800 million cubic meters. The total water volume of Modaomen, Hengmen and Li Hongqi, which flow through Xijiang and Beijiang rivers in this city, is149.7 million cubic meters, and the average water volume per mu is1257 million cubic meters. In addition, Zhongshan City is located in the coastal area, and tidal range can be used for irrigation and drainage.

Animal and plant resources

The main activity places of large and medium-sized mammals in Zhongshan city are distributed in the low hills of Wugui Mountain and the high hills of Baishui Forest Mountain. The existing economic animals mainly include civet, crab-eating mongoose, leopard cat, southern fox, pangolin, rodents, various birds and snakes. Reptiles, amphibians, birds and rodents dominate the plain area; Aquatic animals include fish, crustaceans and many kinds of shellfish. The representative vegetation type is tropical monsoon forest evergreen monsoon forest. There are more than 6 10 species of plants belonging to 358 genera of 105 family, and the forest coverage rate is 12.95%.