Search results
Results From The WOW.Com Content Network
Red soil in India. Red soil is a type of soil that typically develops in warm, temperate, and humid climates and comprises approximately 13% of Earth's soils. [1] It contains thin organic and organic-mineral layers of highly leached soil resting on a red layer of alluvium.
There are seven soil deposits in India. They are alluvial soil, black soil, red soil, laterite soil, or arid soil, and forest and mountainous soil, marsh soil. These soils are formed by various geographical factors. They also have varied chemical properties. Sundarbans mangrove swamps are rich in marsh soil.
Teri or Teri dune complex is a coastal landscape peculiar to some parts of Tamil Nadu mainly in southeastern India. The landscape consists of sediments dating to the Quaternary Period and made of marine deposits with aeolianite and characteristic red sand and silt dunes. These red soils are thought to have originated in the Pleistocene. [1]
These soils have a high clay content, retain moisture and are resistant to erosion, but develop cracks during the dry season. The gneiss peneplain region in the low rainfall areas in the eastern vicinity of the Western Ghats consist of infertile red soil. [32] [37]
Highly oxidized red soil in Tirunelveli District, India. Red colors often indicate iron accumulation or oxidation in oxygen-rich, well-aerated soils. [4] Iron concentrations caused by redox reactions because of diffusion of iron in crystalline and metermorphic rock, in periodically saturated soils may also present red colors, particularly along root channels or pores.
The use of soil tests, coupled with the corresponding provisions, can alleviate issues of nutrition and irrigation that can result from non porous Ultisol. [4] Soil tests help indicate the pH, and red clay soil typically has a low pH. [5] The addition of lime is used to help to increase the pH in soil and can help increase the pH in Ultisol as ...
Soils in India can be classified into eight categories: alluvial, black, red, laterite, forest, arid and desert, saline and alkaline and peaty and organic soils. [ 89 ] [ 90 ] Alluvial soil constitute the largest soil group in India, constituting 80% of the total land surface. [ 90 ]
Laterite in Sơn Tây, Hanoi, Vietnam. Francis Buchanan-Hamilton first described and named a laterite formation in southern India in 1807. [4]: 65 He named it laterite from the Latin word later, which means a brick; this highly compacted and cemented soil can easily be cut into brick-shaped blocks for building.