red and yellow soils have the same colour as the name because they get their colour from ores of aluminum oxide. true/false
Answers
Answer:
Red soil is a type of soil that develops in a warm, temperate, moist climate under deciduous or mixed forest, having thin organic and organic-mineral layers overlying a yellowish-brown leached layer resting on an illuvium red layer. Red soils are generally derived from crystalline rock. They are usually poor growing soils, low in nutrients and humus and difficult to be cultivated because of its low water holding capacity.
Red soils are an important resource.[1]
Red soil in Greece Edit
Red soils in Greece are important soil resources. They fall into two groups, one is a residual soil forming in place from parent rock, the other forming in deep sedimentary deposits. The residual red soils in Greece tend to be less than a meter in depth, tend to occur on sloping hillsides, and, in common with other red soils in the Mediterranean they tend to form in limestone. The red soils that form in deep sediments are widespread in the lowlands of Greece, occurring on gently sloping terrain.
Taxonomically, the Greek red soils belong to what in America would be Rhodoxeralfs (red alfisol), Palexeralfs (well aged alfisols). Xerochrepts (xeric inceptisol), and Orthents.[2]
Explanation:
Red soil is a type of soil that develops in a warm, temperate, moist climate under deciduous or mixed forest, having thin organic and organic-mineral layers overlying a yellowish-brown leached layer resting on an illuvium red layer. Red soils are generally derived from crystalline rock. They are usually poor growing soils, low in nutrients and humus and difficult to be cultivated because of its low water holding capacity.
Soil Colour: The colour of the alluvial soils varies from the light grey to ash grey depending on the depth of the deposition, the texture of the materials, and the time taken for attaining maturity.
Red and Yellow Soils
Locally called ‘Chalka’ in Andhra Pradesh.
Formation: These are derived from granites, gneisses and other metamorphic rocks —> Zonal Soils. These are formed under well-drained conditions.
Areas: Along the piedmont zone of the Western Ghat, a long stretch of area is occupied by red loamy soil. Yellow and red soils are also found in parts of Orissa and Chattisgarh and in the southern parts of the middle Ganga plain. They encircle the black cotton soil zone.
Soil Colour: The soil develops a reddish colour due to a wide diffusion of iron in crystalline and metamorphic rocks. It looks yellow when it occurs in a hydrated form. Often, their upper layer is red and the lower layer is yellow.
Soil Texture: Varies from sand to clay and loam.
Other Characteristic Features:
The fine-grained red and yellow soils are normally fertile, whereas coarse-grained soils found in dry upland areas are poor in fertility.
Have a porous and friable structure.
They are generally poor in nitrogen, phosphorous and humus.
These soils are airy and need irrigation for cultivation.
Intense leaching is a menace in these soil areas.
Suitable Crops: In places where irrigation facilities are available, the crops cultivated are wheat, cotton, pulses, tobacco, millets, oilseeds, potato, maize, groundnut and orchards.