What are natural complexes? This is a geographical concept, which denotes a number of interrelated components of nature. They can cover both vast territories and completely small areas of the Earth. What are natural complexes? What is the difference? What is characterized? Let's find out.
Telling what natural complexes are, it is impossible not to mention the geographical envelope. This is a conditional concept that unites several spheres of the Earth at once, which intersect and interact with each other, forming a unified system. In fact, it is the largest natural complex on the planet.
The boundaries of the geographical envelope almost repeat the edges of the biosphere. It includes the hydrosphere, the biosphere, the anthroposphere, the upper part of the lithosphere (the earth's crust), and the lower atmosphere (troposphere and stratosphere).
The shell is one-piece and continuous. Each of its components (terrestrial spheres) has its own patterns of development and features, but at the same time experiences the influence of other spheres and influences them. They constantly participate in the cycles of substances in nature, exchanging energy, water, oxygen, phosphorus, sulfur, etc.
Natural complex and its types
The geographic envelope is the largest, but not the only natural complex. There are a lot of them on the globe. What are natural complexes? These are certain parts of the planet that have a homogeneous geological structure, soil, vegetation, animal world, climatic conditions and the same water character.
Natural complexes are also called landscapes or geosystems. They differ in vertical and horizontal directions. On this basis, the complexes are divided into zonal and azonal complexes. The main reason for their diversity is heterogeneity of the geographical envelope.
First of all, the differences in natural conditions provide an uneven distribution of solar heat on the Earth. This is due to the elliptical shape of the planet, the unequal relationship between land and water, the location of the mountains (which hold up air masses), and so on.
Zonal natural complexes
Zonal natural complexes represent a predominantly horizontal division of the planet. The largest of these are the geographical belts. Their location is consistent and regular. The emergence of these complexes is directly related to the climatic conditions of the area.
The nature of the geographical belts varies from the equator to the poles. Each of them has its own temperature and weather conditions, as well as the nature of soils, underground and surface waters. There are such belts:
- Northern and southern temperate;
- Northern and southern subtropical;
- Northern and southern subequatorial;
The next largest zonal complexes are the natural zones, which are divided according to the nature of moistening, that is, the number and frequency of precipitation. They do not always have a purely latitudinal distribution. And depend on the height of the terrain, as well as proximity to the ocean. They distinguish the arctic desert, steppe, tundra, taiga, savanna and other natural areas.
Azonal natural complexes
Azonal complexes are not associated with latitudinal division of the planet. Their formation is associated primarily with the relief and formation of the earth's crust. The largest azonal natural complexes are the oceans and continents, which differ significantly in geological history and structure.
The continents and oceans are divided into smaller complexes - natural countries. They consist of large mountain and lowland formations. For example, the natural complexes of the Far East include the Central Kamchatka Plain, the Sikhote-Alin Mountains and the Khingano-Bureya Mountains, and others.
The natural countries of the world include the Sahara Desert, the Ural Mountains, the East European Plain. They can be divided into narrower and more homogeneous areas. For example, gallery forests, located on the outskirts of the steppes and savannas, mangrove forests located along the coast of the seas and in the mouths of rivers. The smallest natural complexes include river floodplains, hills, ridges, uremas, bogs, etc.
Components of natural complexes
The main constituent parts of any geographical landscape are relief, water, soil, flora and fauna, and climate. The interconnection of the components of the natural complex is very close. Each of them creates certain conditions for the existence of others. Rivers affect the condition of soils, soils and climate - on the appearance of certain plants, and plants attract certain animals.
Changing even one component can lead to a complete change in the entire complex. The drying up of the river will lead to the disappearance of the vegetation characteristic of the river area, to a change in the quality of the soil. This will certainly affect the animals that leave the geosystem in search of the conditions they are familiar with.
Excessive reproduction of any kind of animal can lead to the extermination of plants that they eat. There are cases when huge flocks of locusts completely destroyed meadows or fields. This development of events does not remain unnoticed for the natural complex and provokes changes in the soil, water, and then the climate regime.
So what are natural complexes? This is a natural-territorial system, the components of which are homogeneous in origin and composition. Complexes are divided into two main groups: azonal and zonal. Within each group there is a separation from large to smaller sites.
The largest natural complex is the geographical envelope, which includes part of the lithosphere and atmosphere, the biosphere and hydrosphere of the Earth. The smallest complexes are individual hills, small forests, estuaries, marshes.