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प्रश्न
How do you distinguish between humification and mineralisation?
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उत्तर
| Humification | Mineralisation |
| Humification leads to the accumulation of a dark-coloured amorphous substance called humus that is highly resistant to microbial action and undergoes decomposition at an extremely slow rate. | Being colloidal in nature it serves as a reservoir of nutrients. The humus is further degraded by some microbes and release of inorganic nutrients occur by the process known as mineralisation. |
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संबंधित प्रश्न
Common detritivores in our ecosystem are ______.
The major reservoir of carbon on earth is ______.
Distinguish between production and decomposition.
Define decomposition.
What is leaching?
Name the type of detritus that decomposes faster. List any two factors that enhance the rate of decomposition.
Write the different steps taken in humification and mineralisation during the process of decomposition.
Find out the INCORRECT statement
The process of mineralisation by micro organisms helps in the release of ______.
What is common to earthworm, mushroom, soil mites and dung beetle in an ecosystem?
What could be the reason for the faster rate of decomposition in the tropics?
The rate of decomposition of detritus is affected by the abiotic factors like availability of oxygen, pH of the soil substratum, temperature etc. Discuss.
Assertion (A): Decomposition process is slower if detritus is rich in lignin and cutin.
Reason (R): Decomposition is largely an oxygen requiring process.
Observe the contents 1, 2, 3 and 4 of soil samples A, B and C shown in the graph. If the temperature and soil moisture of all soil samples are identical, which soil sample (s) will show faster decomposition?
1 indicates lignin content, 2 indicates chitin, 3 indicates nitrogen content, and 4 indicates sugar content
