o What are the characteristics of urban distribution in China?

The spatial distribution of Chinese cities is concentrated in the eastern coastal area, which is the most densely distributed urban zone in China, among which the Yangtze River Delta, the Pearl River Delta, Beijing-Tianjin-Tang and central and southern Liaoning regions have the largest urban density, and the eastern coastal zone is concentrated in megacities and large cities. In the central belt, large, medium and small cities are relatively evenly distributed.

The economy in the southeast and north is relatively good, and there are too many poor areas in the west.

The terrain is high in the west and low in the east, and is distributed in a stepped manner.

The business district is located in the center of the city and in the bustling area; Residential areas are located on the periphery of commercial districts; The industrial zone is located on the outskirts of the city.

The emergence of cities is a sign of human maturity and civilization, and it is also an advanced form of human social life. Fundamentally speaking, there are two types of cities: "city" because of "city" and "city" because of "city".

Cities are developed on the basis of cities, and this type of city is mostly seen in strategic places and border cities, such as Tianjin, which originated from Tianjin Wei; The "city" and "city" are the cities formed due to the development of the city, that is, the formation of the market first and then the city, and this kind of city is more common.

The business district is located in the center of the city and in the bustling area;

The residential area is located on the periphery of the commercial area, among which the high-end residential area has a beautiful environment and convenient transportation;

The industrial zone is located on the outskirts of the city, where it is cheap and close to the transportation lines.

The business district is located in the downtown area.

In terms of location: distribution along railway lines, distribution along coastlines (such as Japan), distribution along rivers (such as near the Yangtze River), distribution along lakes (such as near Taihu Lake) in terms of group status: distribution is called uniformity, distribution is called dispersion, distribution is called dense formation of urban agglomerations in terms of distribution shape:

When answering questions in the shape of a strip, in a ring, in the shape of a chessboard, etc., you can answer them together in combination with this set of situations. For example, the cities in this map are generally distributed in strips along the XX River, and the distribution is called uniform.

1. China: The distribution of Chinese population is generally more in the eastern coastal areas and less in the western inland areas, and geographically it is mainly divided by the line between the Mohe River in Heilongjiang and Tengchong in Yunnan, with more in the southeast and less in the northwest.

The southeast region accounts for 43% of the country's land area, while the population accounts for about 94% of the country's population, and the northwest region accounts for 57% of the country's area, but the population only accounts for about 6% of the country's population.

2. World: The world's population is mainly concentrated in the middle and low latitude coastal areas of the northern and eastern hemispheres.

In terms of continents, Asia is the largest in the geographical distribution of the world's population, followed by Europe, followed by Africa, Latin America, North America, Oceania the least, and Antarctica has no long-term settled population.

From the perspective of climate zones, the vast majority of people in the world live in plains and basins with mild climate and high precipitation in the middle and low latitudes. Coastal zone in low and medium latitudes. And in arid deserts, cold polar regions, alpine plateaus with thin air, pristine tropical rainforest areas, the population is sparsely distributed.

(l) Relying on the distribution of rivers, oases and communication lines. (Or answer: where the water source is ***, such as oases, along rivers; The number of cities is small, the spatial distance between cities is large, etc.) (2) most of them are inland rivers (or mainly internal rivers); Most of them are seasonal rivers; The river is short; It is mainly recharged by glacial snow meltwater, and the flow varies with the change of temperature.

Answer three points correctly) (3) strong light; The large temperature difference between day and night is conducive to the accumulation of organic matter. (4) Land desertification. oases are decreasing, migrating upstream of rivers; grassland degradation, etc.

1 point is sufficient).

Cities should be located in densely populated areas such as oases, along rivers, and along roads. Except for the Irtysh River, the rivers in Xinjiang are all inherent, with a short flow and are mainly fed by glacial meltwater, and the flow is interrupted in winter. Xinjiang has an arid climate, strong sunlight and a large temperature difference between day and night, which is conducive to the accumulation of sugar in crops.

Desertification is a major ecological and environmental problem in arid and semi-arid areas. <>