Soil type | soil type classification

The soil type is taxonomic. All soils, often described in clumps, have more soil types. Soil classification is a technical term for soil classification and refers to the classification of soil resources. Every country in the world has different soil types. The soil type is long-lasting. You will never find soil types in nature. You will get different soil.

Soil type

In the top-level classification system, soil types are very large at intermediate levels. Soil types can usually be classified into smaller types, and in many systems, most soil types can be stacked together in a higher-order container. However, in the first classification system in the United States (Whitney, 1909), soil type was minimal and area of ​​mapping.

For the definition of soil type, some systems primarily use characteristics that are the result of pathogenesis. An example is the German soil system. Other systems combine features derived from the original design and features inherited from the original components. Soil resources (WRB) and USDA are examples of world reference bases for land classification. Other systems do not ask whether the property is the result of land construction. Example Australian Classification of Australian soil.
Soil type | soil type classification

One convenient way to define soil types is to talk about the boundaries of the soil, but this is not always possible because there is no clear evolution of the boundaries in some very basic soils. As with other soils, it is more convenient to define the type of soil so that some characteristics may be more commonly specified throughout the soil profile. For example, the WRB defines forums by their sand content. Many soils are rarely affected by human activity. This is reflected by the definition of multiple soil types in different classification systems.


Since soil type is the most common and widely used term, many soil classification systems do not apply it to their definitions. The USDA Soil Classification consists of six types of plots named as a sequence, subgroup, subgroup, subgroup, family and series. WRB calls the first level reference cell group. The second level in the WRB is created by adding a qualifier, and no classification term is used for the decision (reference PAL group and selector).

Soil Classification Systems

Soil type | soil type classification

Although classification systems are designed to facilitate communication, they are fake and current.

Inner limit. Out of necessity, they simplify the complexity and continuity of the world,
Whether randomly or without use. Soil is characterized by various classification systems,
The first criterion is the definition of soil (see: how soil is defined. Note: These refer to the interior.
Link through the website above). Agricultural scientist, engineer, geologist and many different
Definitions based on your particular discipline or career needs. The ground should not be loose here
one more. Classification systems can be classified into two categories, namely oral and scientific. Mother tongue
Systems have been in use for thousands of years, while science-based systems have been relatively recent.
Progress (see: Brief History of Soil Science). Dry soil is dry soil
References (see: dry soil classification) if the drought is too high
Those who cultivate a particular soil classification system, then dry soil will be clearly separated.
That system, be it terminology or the science of computing.

Vernacular Systems

The national system is developed by land users. Their structure is either nominal or unique.
Soil or landscape, or descriptive, naming the soil as its characteristics, such as red, hot, fat or
Sandy. Soil is well defined, such as physical appearance (eg color, texture)
Landscape conditions), performance (eg production capacity, flooding) and associated vegetation.
These differences are often based and largely based on features important to land management.
Until some time ago it was ignored by the scientific community along with anthropologists and geographers
Write it down first. The national system can provide a language for foreigners to communicate with local people
With regard to land users, especially agricultural management and resource conservation. Popular system can
It can provide technicians and scientists with information about natural resource management systems that can
Local resources are valuable for cataloging and development.
Anthropology, a term coined by Williams and Ortiz-Solorio (1981, p. 336), is a study of them.
Terminal system. Anthropologist Harold C. Conklin first began documenting the popular system
In the 1950s. A study by the University of Arizona office Ard Lands Studies shows that
Internal systems can be very elaborate on dry soils with comparable utility to scientific systems
(Eg Paul system in Mauritania) or vice versa (not teacher)
Bedouin's system in Saudi Arabia means that soil differences are not considered significant
For their existence). Malibu's residential system in semi-arid California covers only one area,
The infamous "Malibu Blue Ground" (called Diablo clay in the USDA)
System) that restricts construction development due to septic tank drainage area and lowers property values
This field is not allowed.

Scientific Systems 

There are two types of scientific systems, depending on the processes of soil or core processes.
Based on mathematical properties. Many systems have both types of elements. Criteria for
By no means is the soil difference between these systems. This system can be structured Creative, Descriptive or Nominal. Soil classification systems are not stable. As knowledge is in the classification of plants and animals, the names of old systems and categories have changed to new ones.
Soil type | soil type classification
system. These differences in classification systems make it important to include descriptions of graduates.
It can be integrated with other systems when ground reporting. Grading System Users Required
Class boundaries are sufficient to ensure that useful features are important in the classroom. Scientists
Systems, especially serial fields, are useful for excluding regions from testing but are generally considered one.
A detailed description of the soil is necessary to formulate recommendations for soil use and management.
Process classification system is developed to understand the properties of soil and soil Attendance changes over time. Soils form various layers as biological, physical and chemical processes.

Developing material raising areas and deficit areas, also known as distances. It's development
As long as the weather and other processes are stable, this is expected. This notion of stability has become
Problems for this type of grading system, especially for partially developed dry soil
Subject to moist conditions. There may be more than one classification for a region, depending on
The soil treatment process has to be disclosed. Because of this and other problems, USDA
Abandoned its system based on soil-building processes and soil-based systems
Classification based on current mathematical properties. Engineers also use existing systems
Usually, for obvious reasons.
Different classification systems do not have soil separation criteria. soil
Adding classifications between two or more is a good example of textual problems.
Ways. The text describes the proportion of minerals in different sizes of soil. for
Depending on the classification system used, text-class names may vary. Name doesn't matter
Similarly, boundaries are often separated, such as the "sandy soil" of the United States and the French system:
The particle size .rebit problem continues. For example, soil was defined as <0.002 mm
Diameter of some systems and <0.005 mm by others. Other Physical, Chemical, and Biological Sciences
Features are similar differences between systems that make connections between each other
Until the soil details are obtained, the system is almost impossible.
Classification series, descriptive or nominal systems have their own strengths and
Weakness. The rules of the chain system allow a person to set them from top to bottom
The first is the classification without any possible classification. Classification of results
(For example, clay, mixed, is an indication of the hyper form type of USDA soil
Management decision-making usually requires a lot of information. In addition, these systems
If applied to the regions, there may be some differences in the regions of the world.
is developing. For example, sandy West African soil has very low cation exchange capacity
There is a small increase or decrease in base captions, which can make a large difference in the percentage of base saturation.
Identify orders for Albisol and Ultisol (USDA soil classification higher).
Descriptive soil classification systems are usually designed for a sole purpose. for
For example, the soil classification system of fertility uses a string of upper and lower letters.
Identify key features in soil fertility management for the crop. These systems are comparable
Simple, easy to explain, but at a limited cost.
soil type classification

Nominal systems are very similar to lexical systems but with the rigor of scientific and
Engineering Capabilities. These systems may be broad enough to serve as a basis for management
Decisions, but only at a regional level. It would be a good idea to compare several soils with this system.
Job. The USDA soil series system is an example of a nominal system prior to soil classification.
The soil series have been modified to fit into and be attached to a soil classification
Hierarchical system. Together, provide powerful tools for classification and ground chain systems
Identification, understanding, and management of the soil. It can be a fusion of hierarchical and nominal systems
Copied using existing vernacular systems in other countries, particularly in developing countries.
To show how all this went perfectly, the dry soil was in "Malibu Blue Clay" (vernacular name)
Founded in 1910 by the USDA under the name of Diablo Soil Series (formerly nominal scientific system) and classified in the Grumsol (former hierarchical scientific system). Since then, the series of Diablo clays has been described
Modified (new nominal scientific system) and classified in the family of fine, smithic and thermal aerobics
Hapolerseart (current hierarchical scientific system).

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