1. Explain the Classification of Soils
2. Create a Table of types of Soils
Mention the Following Features:-
*Importance
* Area
* Crops
* Colour
* Specific Feature
3. What are the Five features of Black soil?
4. Do Map work on map skill
( Types of Soil )
5. What is Soil Erosion?
6. Explain the Types of Soil erosion.
7. What are the causes of soil erosion ?
Answers
Answer:
Explain the Classification of Soils
Classification of soils consists of the division of soils into classes ... of the three phases of a soil define the fundamental physical properties,
2. Create a Table of types of Soils
The soil is basically classified into four types:
Sandy soil.
Silt Soil.
Clay Soil.
Loamy Soil
Crop diversity is the variance in genetic and phenotypic characteristics of plants used in agriculture. Over the past 50 years, there has been a major decline in two components of crop diversity; genetic diversity within each crop and the number of species commonly grown.
Crop diversity loss threatens global food security, as the world's human population depends on a diminishing number of varieties of a diminishing number of crop species. Crops are increasingly grown in monoculture, meaning that if, as in the historic Great Famine of Ireland, a single disease overcomes a variety's resistance, it may destroy an entire harvest, or as in the case of the 'Gros Michel' banana, may cause the commercial extinction of an entire variety. With the help of seed banks, international organizations are working to preserve crop diversity.
What are the Five features of Black soil?
The black colour of the soil is due to the presence of titaniferous magnetite, compounds of iron and aluminium, humus and colloidal hydrated double iron and aluminium silicate.
The characteristics of black soil are-
clayey texture and are highly fertile
the structure of these soils is cloddish or occasionally friable
rich in calcium carbonate, magnesium, potash, and lime
but poor in nitrogen and phosphorous
highly retentive of moisture, extremely compact and tenacious
when wet
contractible and develops deep wide cracks on drying
calcareous and neutral to mild alkaline in reaction, high
in carbon exchange capacity and low in organic matter
self-ploughing and comparatively less fertile on the uplands than
on the lowlands.
These soils are well suited to leguminous crops like cotton, citrus fruits, millets, wheat, linseed, castor, tobacco, sugar cane, and safflower.
.
What is Soil Erosion?
Soil erosion is the displacement of the upper layer of soil, it is one form of soil degradation. This natural process is caused by the dynamic activity of erosive agents, that is, water, ice, snow, air, plants, animals, and humans
6. Explain the Types of Soil erosion
Rainfall, and the surface runoff which may result from rainfall, produces four main types of soil erosion: splash erosion, sheet erosion, rill erosion, and gully erosion. ... If the runoff has sufficient flow energy, it will transport loosened soil particles (sediment) down the slope.
7. What are the causes of soil erosion ?
The agents of soil erosion are the same as the agents of all types of erosion: water, wind, ice, or gravity. Running water is the leading cause of soil erosion, because water is abundant and has a lot of power. Wind is also a leading cause of soil erosion because wind can pick up soil and blow it far away.
Explanation: