In literature, as well as in colloquial speech, the word "natural boundary" is found. What is it, what definition can be given to the indicated concept? On the territory of Russia there are many places in the name of which there is a represented word - nature reserves, places of rest, natural sites. There are many different interpretations of this designation.
The concept
In the common sense, a certain meaning is put into this word, which says that it can be any part of the area that differs from the territory located in a circle. In vernacular, this term refers to abandoned old villages, which is incorrect from the point of view of landscape science. Sometimes this can be a name that has been “reproached” about, a kind of reference for the population, which is used to preserve history and transmit knowledge of the area to future generations.
In geography, this term refers to the conjugated system of landscape components - soil, water regime, flora, fauna, microclimate. If you look at the map and evaluate the numerous objects marked with the designation “ur.”, You can see that these are separate, different from nearby sites, places - a small forest in the field, a meadow in the middle of a solid forest, marshland, etc. Tracts are most clearly manifested in conditions of pronounced relief - with alternating hills and valleys, ridges and ravines. With all the diversity of the structure, they all have the integrity of physical and biological factors that determine them among other geographical systems.
Tract changes
Natural boundaries are the lowest unit of physical-geographical zoning. According to the area occupied by them, they can be dominant (the most common territories in the landscape) and subordinate (small in size). In most cases, these isolated sections of the terrain do not have certain boundaries, it happens that these inaccurate boundaries move. The physical and geographical concepts of natural tracts suggest that under the influence of time, the terrain can change - rivers change direction, ravines are washed away by meltwater, and slopes are showered. Also, landscape areas, originally occupied by tracts, can be occupied by modern buildings. Thus, natural boundaries are a variable phenomenon; for map-makers it is the most interesting subject to study.
Sub-sites
A sub-clearing is a finer structure of conjugate conditions, which is not an obligatory object of the landscape system. This term was proposed in 1952, introduced by the landscape historian and the distributor of geographical knowledge, D. L. Armand. As an example of the cleanups, we can cite systems located on a hillside, on the surface of an interfluve or floodplain, at the bottom of a ravine — natural complexes that are closely related from one group of facies, which are characterized by the greatest uniformity of components.
Forest
A typical tract on a flat plane is a forest, which is located among fields or marshes. It is important to understand the difference - a forest located separately, but on the same type of soil, with a single water regime, the same vegetation is a facies. A tract will be called a section of the territory where landforms, various types of vegetation, and various soils are combined - for example, a mixed forest, which occupies an area with different moisture levels, rocky areas among marshy spaces.
Abandoned villages
Among treasure hunters and lovers of ancient values, interest in deserted villages is not waning. A promising place in terms of discovering interesting finds is considered a natural boundary. What it is? Formerly a long time ago residential settlement (settlement, farm, etc.), abandoned and extinct. This definition refers to non-restored settlements that have lost the appearance of villages. Usually it looks like a clearing, overgrown with centuries-old trees or an isolated forest among meadows. Often you can meet people with metal detectors and camping equipment, coin search lovers on these sites.
Search engines argue that the most likely sign of a successful place to search is greener vegetation compared to other sites (this is proof of fertilized gardens near human housing, and therefore values). The abandoned villages of the Leningrad Region are especially attractive for those who seek abandoned treasures - as a result of hostilities, the densely populated area was hastily abandoned by residents, not always having the opportunity to pick up valuables. The search for antiquities in such places is a fruitful occupation.
So, the tract - what is it? For sparsely populated areas - this is a noticeable and useful landmark. For a simpler understanding, this is the well-established local name of a particular site, often associated with its history. Abandoned villages of the Leningrad Region (which have not yet become "natural boundaries") are often found in descriptions of many interesting places, expedition reports, among specialists whose work is related to work on the ground. An important role for orientation on the ground is played by natural boundaries for local historians, archaeologists, geologists, and search engines.
Use of tracts
Differing in natural conditions, tracts can be used in different ways. For example, in agriculture, flat areas can be used as arable land, and dissecting ravines as pastures, meadow or forest lands, and forage bases. As a separate object, it is valuable as a natural object and can be a conservation area.
Therefore, a separately isolated part of the landscape is a natural boundary. What it is, in the most understandable form, explains geography. This is best seen in the area where the tract occupies an area on a convex or concave basis of the relief (hill or hollow), on homogeneous soil and is combined by common vegetation, moisture, fauna and other morphological characters.