Decomposition happens through a series of biological and chemical steps that gradually convert complex organic matter into simpler substances.
This process typically unfolds in stages:
- Initial breakdown
Soon after death, microorganisms like bacteria begin to act on soft tissues. Enzymes start breaking down cells internally.
- Fragmentation
Small organisms such as insects and worms physically break the material into smaller pieces, increasing the surface area for further action.
- Chemical decomposition
Bacteria and fungi continue to decompose organic matter, converting it into simpler compounds like carbon dioxide, water, and minerals.
- Humification
The remaining material turns into humus, a dark, nutrient-rich substance that improves soil quality.
- Mineralization
Nutrients such as nitrogen and phosphorus are released into the soil, making them available for plants.
Process insight:
Decomposition is not a single-step event but a continuous cycle driven by microorganisms, environmental conditions, and the nature of the organic material.