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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
Define decomposition.
What is leaching?
The process of mineralization by microorganisms 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.
Identify the correct statements:
- Detrivores perform fragmentation.
- The humus is further degraded by some microbes during mineralization.
- Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.
- The detritus food chain begins with living organisms.
- Earthworms break down detritus into smaller particles by a process called catabolism.
Choose the correct answer from the option given below:
What is catabolism in the context of decomposition?
What is the primary distinction between fragmentation and catabolism?
Which organisms are primarily responsible for fragmentation in the decomposition process?
What is mineralisation?
Which of the following correctly lists the five steps of decomposition in order?
Which chemical composition of detritus favours rapid decomposition?
What is the primary reason lignin and chitin slow down decomposition?
What characteristic of humus allows it to act as a nutrient reservoir?
