Topography and climate of Anhui Province

Category: Region>> Anhui

Problem description:

I hope you can tell me something about the topography and climate change of Anhui Province. Generally speaking, just tell me. Thank you for some of the geographical environment of Anhui Province

Analysis:

Anhui Province, referred to as "Wan", is located in southeastern China. The province is about 570 kilometers long from north to south and 450 kilometers wide from east to west, with a total area of ​​139,600 square kilometers, accounting for about 1.45% of the land area. There are 1,850 towns and villages, and the provincial capital is Hefei.

Geographical location and natural conditions

Topography Anhui Province has diverse topography. The Yangtze River and Huaihe River run across the entire territory from west to east, dividing the province into three major areas: Huaibei, Jianghuai and Jiangnan. natural area. The terrain north of the Huaihe River is broad and vast and is part of the North China Plain. Between the Yangtze River and the Huaihe River in the central part, the mountains and hills are winding, with undulating hills and alternating hills. The terrain on both sides of the Yangtze River and around Chaohu Lake is low and flat, belonging to the famous middle and lower reaches of the Yangtze River plains. The south is dominated by mountains and hills. The province can be roughly divided into five natural areas: Huaibei Plain, Jianghuai Hills, Dabie Mountains in Western Anhui, Plains along the Yangtze River, and Mountains in southern Anhui. Anhui is located in the transition area between warm temperate zone and subtropical zone, with a warm and humid climate and four distinct seasons. However, the distribution of climate conditions is obviously different, the weather is changeable, precipitation varies greatly between years, and natural disasters such as droughts and floods often occur.

Climate The average annual temperature in the province is between 14-17℃, the average sunshine is 1800-2500 hours, the average frost-free period is 200-250 days, and the average precipitation is 800-1800 mm.

Natural resources Water resources: The total amount of water resources in the province is about 68 billion cubic meters. The important water conservancy projects in the province are the Pishihang Irrigation Project and the Simashan River Diversion Irrigation Project.

Land resources: The province’s cultivated land area is 4.33 million hectares. The land is fertile and suitable for the growth of various crops.

Animal and plant resources: The province’s forestry land is 41,800 square kilometers, accounting for 12%. The province is rich in plant species, with more than 1,300 species of native plants, more than 2,100 species of herbaceous plants, and more than 500 species of animals, including 54 species of nationally protected animals, among which the alligator and the white-tip dolphin are the most precious.

Mineral resources: Anhui Province has a wide variety of mineral resources, with abundant reserves and concentrated distribution. More than 130 types of minerals have been discovered, of which 67 have proven reserves, 49 have been developed and utilized, and 38 minerals rank 10th in the country in terms of reserves. Calculated at constant prices in 1990, the total potential value of the province's mineral reserves reached 1.92 trillion yuan, ranking 10th in the country. Among them, the retained reserves and potential prices of 11 minerals, including coal, iron, copper, sulfur, and alunite, rank among the best in East China and even the country.

Population

Demography In 2005, the province’s birth rate was 12.43‰, an increase of 0.81 per thousand points over the previous year; the death rate was 6.23‰, an increase of 0.73 per thousand points. ; The natural growth rate was 6.2‰, an increase of 0.08 percentage points.

Ethnic distribution and population proportion The main ethnic group in the province is Han, with a population of 59.484 million, accounting for 99.37%; the population of various ethnic minorities is 376,000, accounting for 0.63%. The ethnic minorities are mainly ethnic minorities. In addition, there are 52 ethnic minorities such as Manchu, Mongolian, Zhuang and She.

Education level At the end of 2005, there were 19 postgraduate training units in the province, with 8,198 students enrolled that year, 21,505 postgraduate students, and 4,148 graduates. There are 81 general colleges and universities, with an enrollment of 199,000 students, 589,000 students and 117,000 graduates. Various types of secondary vocational education (excluding technical schools) enrolled 276,000 students that year, with 633,000 students enrolled. There are 760 general high schools with an enrollment of 435,000 students, 1.17 million students and 301,000 graduates. There are 3,188 ordinary junior high schools with an enrollment of 1.12 million students, 3.44 million students and 1.125 million graduates. There are 20,142 primary schools with an enrollment of 815,000 students, 5.841 million students and 1.162 million graduates. The enrollment rate of the school-age population in junior high school is 97.78%, and the enrollment rate of primary school-age children is 99.54%; the dropout rates of ordinary junior high school and primary school students are 2.4% and 0.73% respectively. The number of graduates from adult schools at all levels was 919,000. Throughout the year, 86,000 people were eradicated from illiteracy.