mention the role of relief features in agriculture of an area.
Answers
Answer:
Climate, land relief, soil and vegetation are the main factors which influence agricultural activity.
Climate
The growth of plants depends on the temperature and humidity of the land and the amount of light it receives.
We can't practice agriculture in areas with extreme temperatures
below 0ºC
above 45ºC
We also cant grow plants in areas of severe drought.
Land relief
Farmers prefer to cultivate crops on flat land
plains
valley bottoms
It is harder to cultivate in mountainous areas:
machines can't be used for soil preparation or harvest
terraces must be cut into the hillside
low temperatures prevent cultivation in high altitudes
Livestock farming and forestry adapt better to mountainous terrain.
The relief will also affect the available water resources.
Soil
The soil is the result of the decomposition of bedrock. Soils are made up of a series of layers called horizons.
Soil provides the nutrients necessary for plants to grow.
The fertility of the soil depends on various factors:
Depth
Deeps soils have thick evolved layers
Found in valleys and plains
Fertile soils
Thin soils are made up of external layers
found on the slopes of mountains and high plateaus
Not very fertile
Texture (influences water retention)
Sand, silt, clay
Acidity or Alkalinity
The acidity of soils is measured by their pH.
The PH of pure water is 7 (neutral)
When a soil's pH value is lower than 7 it is acidic
When its pH value is higher than 7 is is basic or alkaline
Soils which are too acidic or alkaline are not very fertile
Land and soil are the two physical factors which influence the growth of vegetation in an area.
Land: Land greatly influences the natural vegetation. Because there are different landforms such as mountains, plains and plateaus, vegetation also differs accordingly. While fertile lands of the plains are used for agricultural activities, the grasslands are used for providing pastures for the animals.
Soil: Various kinds of soil support different vegetation. While alluvial soil is fertile and supports extensive agricultural activities, the sandy soil of the desert region supports cactus and thorny bushes
Explanation:
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