FORESTRY
SOIL SCIENCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Leaching
|
|
|
Washing out
|
|
|
Deforestation
|
|
|
Transportation
|
Detailed explanation-1: -Water soluble inorganic nutrient go down into the soil horizon get precipitates as salts, this process is called leaching.
Detailed explanation-2: -It is the process by which Soil constituents are washed out from the upper layers to the lower layers through percolating water.
Detailed explanation-3: -E: The E horizon is a subsurface horizon that has been heavily leached. Leaching is the process in which soluble nutrients are lost from the soil due to precipitation or irrigation. The horizon is typically light in color. It is generally found beneath the O horizon.
Detailed explanation-4: -Eluviation-illuviation refers to the preferential removal of constituents such as clays, organic chelates and oxides from one zone and their subsequent accumulation in another zone within the profile. From: Developments in Soil Science, 1983.
Detailed explanation-5: -Leaching: water soluble inorganic nutrients go down into the soil horizon and get precipitated as unavailable salts. Fungal and bacterial enzymes act on the detritus to degrade it into simpler inorganic substances. This process is called catabolism.