The reason why the natural zone of place A is obviously different from that of place B

The distribution of terrestrial natural zones is mainly based on the following basic laws:

1) Latitudinal zonality. The natural zones are roughly arranged in a band-like pattern of a certain width along the direction of the latitude, and change regularly from north to south according to the direction of the meridians. The occurrence of latitudinal zonality is mainly the result of the decreasing solar radiation from the equator to the poles due to the shape of the Earth.

Different latitudes have different thermal conditions, but also different water conditions, so different vegetation and natural landscapes are formed.

2) Longitude zonality. The natural zone gradually changes from the coastal areas of the mainland to the interior, and roughly extends parallel to the meridian lines into bands. Its production is mainly affected by moisture conditions, but it also requires certain thermal conditions.

3) Vertical zonality. In alpine areas, the hydrothermal conditions from the foothills to the summits change with the increase of altitude, and this vertical climate change affects the organisms and soils and changes vertically, thus forming a vertical natural zone of mountains. For a specific mountainous area, it is always in a certain latitude zone, so the latitudinal zonality must also leave a mark on it.

In addition, the height, trend, aspect, and land position of the mountain also have an important impact on the vertical zonal change.

4) Non-zonal. On the earth's surface, the distribution of sea and land, topographic undulations, etc., do not have zonal laws, which are called non-zonal factors. Under its influence, the zonal distribution of the natural zone has been destroyed, and it has become very incomplete or not very distinct, making the natural environment more complex and diverse.

For example, on the continent at 50° 70° north latitude there are east-west coniferous forests, while between 50° and 70° south latitudes there is no distribution of boreal coniferous forests because most of them are oceanic. The southern part of the Andes in South America is flanked by rainy temperate forests to the west, while the mountains at the same latitude are flanked by the dry Patagonian desert to the east.

From the above, it can be seen that the distribution of the natural zone of land on the earth is affected by a variety of factors and governed by various laws, among which thermal conditions are the most basic. On the basis of latitudinal zonality, the effects of longitude zonality, vertical zonality and non-zonality are superimposed, so that the distribution of natural zones is both regular and complex.

Earth's climate and seasons.

Factors such as geographical location, altitude, light time, etc.

What two places are you talking about, it won't be Madagascar, right?

Desert zone. The stability of the natural zone is mainly based on the amount of biological production here, especially the production of plants. Plant production reflects the external environmental conditions required by various organisms such as light, water, soil, etc., and the number and variety of plants are abundant in areas with good environmental conditions.

Strong stability. In the forest area, the plant productivity is high, the yield is large, it can support the survival of a variety of animals here, and its own regulation ability is strong, so the ecosystem is relatively stable. In particular, Brazil's tropical rainforests, which have existed for 100 million years and play an irreplaceable role in the earth's ecology.

The tundra zone is mainly affected by heat, due to the low temperature, weak evaporation, the surface of the lack of holes is moist, and the water conditions are better. The heat here is generally stable, although there is only a short "summer" in the wilderness, but in the past two or three months, the land is a "prosperous" scene, lichens, mosses and other lower plants are abundant, but also attract reindeer and other larger animals, but also form a paradise for birds. Moreover, the scale of the ecosystem here is very large, and the organisms in each region can "adjust with each other" to maintain a dynamic balance.

The desert is deep inland, the water conditions are extremely poor, it is difficult to form a large scale of withered plant populations, vegetation cover, plant production is very small, so the number of animals is very small, and the species are monotonous. As a result, ecosystems here are more fragile and unstable, and it is difficult to recover in a relatively short period of time after being damaged.

I'm sorry. I copy someone else's.

No picture, no truth...

Let's talk about how to judge.

There are two most important factors affecting the distribution of natural zones, water and heat, and the climate is formed according to the spatial and temporal distribution characteristics of water and heat, and various climates correspond to different natural zones.

If a certain factor is the main reason for the difference between water and heat, then this factor is the reason for the difference in natural zones, such as the difference between the windward slope (more precipitation) and the leeward slope (less precipitation), which is the influence of topographic conditions.

For example, the difference between high and low latitudes affects the distribution of heat, and the coastal and inland affect the distribution of water, etc., and other ocean current factors are generally auxiliary factors, not decisive factors, but only strengthen the typicality of the climate, warm current warming and humidification (the North Atlantic warm current strengthens the temperate oceanic climate of Western Europe), and cold current cooling and humidification (the Peruvian cold current strengthens the dryness of the region, promoting the formation of deserts).

Since I didn't see the graph, I can't analyze it specifically, so you can analyze it yourself.

D Question analysis: It can be clearly seen from Figure A that the natural zones on the east and west banks of the northern hemisphere continent are the same, which must be temperate deciduous broad-leaved forest zones, so that it can be determined that the corresponding natural zones are temperate desert zone, temperate steppe zone and temperate deciduous broad-leaved forest zone. And because the two natural zones are the same, combined with the information in the figure, it can be judged that it is also a temperate deciduous broad-leaved forest zone, and it is very likely that the mountain range in the figure is the Andes.

In the figure, the formation of the natural zone is due to the deep inland and arid climate. It is formed because it is located on the eastern side of the Andes, on the leeward slope where westerly winds prevail. Therefore, choose D

Comments: The key to this question is to determine the five natural zones in the figure, and require candidates to be familiar with their causes and distribution laws.

In a certain area, the unified whole formed by organisms and the environment is called a permeable ecosystem Under normal circumstances, the number and proportion of various organisms in the ecosystem are always maintained in a relatively stable state This shows that the ecosystem has a certain self-regulating ability The size of the ecosystem's regulating ability depends on its own structural characteristics, the richer the biological species in the ecosystem, the larger the number of individuals, and the more complex the food web, the stronger the self-regulation ability of the Buyu ridge From the virtual situation, it can be seen that The stability of the ecosystem in place A is greater than that in place B

Therefore, a

The division of the eastern and western hemispheres is bounded by the meridian coils composed of 20°W and 160°E, with the eastern hemisphere east of 20°W and west of 160°E, and the western hemisphere west of 20°W and east of 160°E. The longitude of place A is 170°E, so it can be seen that place A is located in the western hemisphere east of 160°E, so a is incorrect;

The latitude of land A is 25°s, which is located in between, and belongs to the southern temperate zone, so b is correct;

0° 30° is a low latitude area, 30° 60° is a middle latitude area, 60° 90° is a high latitude area, and the latitude of a place is 25°s, which belongs to a low latitude, so c is incorrect;

A belongs to the south temperate zone, and the temperate zone has neither direct sunlight nor polar day and night, and the four seasons are distinct, so d is incorrect

Therefore, b