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Clay is generally considered undesirable for agriculture, although some amount of clay is a necessary component of good soil. Compared to other soils, clay soils are less suitable for crops due to their tendency to retain water, and require artificial drainage and tillage to make suitable for planting.
Geophagia (/ ˌ dʒ iː ə ˈ f eɪ dʒ (i) ə /), also known as geophagy (/ dʒ i ˈ ɒ f ə dʒ i /), [1] is the intentional [2] practice of consuming earth or soil-like substances such as clay, chalk, or termite mounds. It is a behavioural adaptation that occurs in many non-human animals and has been documented in more than 100 primate ...
The formation of the claypan relates to a lack of vegetation coverage, soil particle size distribution, and high rainfall. The lack of vegetation coverage makes soil become more susceptible to raindrop attacks. When the raindrops hit on bare soil with high energy, the fine sand, silt, and clay particles are re-arranged to plug all the pore spaces.
Many desert animals (and plants) show especially clear evolutionary adaptations for water conservation or heat tolerance and so are often studied in comparative physiology, ecophysiology, and evolutionary physiology. One well-studied example is the specializations of mammalian kidneys shown by desert-inhabiting species. [81]
In local brickyards, they were called "clay-dogs" either because of their animal-like forms or the concretions were nuisances in molding bricks. [ 81 ] [ 82 ] [ 83 ] Similar disc-shaped calcium carbonate concretions have also been found in the Harricana River valley in the Abitibi-Témiscamingue administrative region of Quebec , and in ...
The rate of soil erosion [1] varies from zero to 1–2 mm of soil removed yearly. If gullies are excavated by concentrating overland flow, erosion values in a field can attain 2–4 mm of soil loss in a single rain event. Excessive animal grazing facilitates gully erosion, soil slips and mass movements.
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Badlands are a type of dry terrain where softer sedimentary rocks and clay-rich soils have been extensively eroded. [1] They are characterized by steep slopes, minimal vegetation, lack of a substantial regolith, and high drainage density. [2] Ravines, gullies, buttes, hoodoos and other such geologic forms are common in badlands.