Community Level Systems: Decomposition

Community Level Systems: Decomposition

Decomposition Process

• Decomposition is a critical ecological process where dead organic substances are broken down into simpler matter.
• Decomposition is carried out by decomposers, primarily bacteria and fungi.
• The process of decomposition releases essential nutrients into the environment, which can be used by plants for growth and development.

Role of Decomposers

• Decomposers are organisms that feed off dead or decaying matter - they are nature’s recyclers.
• They use the carbon in this organic matter as a source of energy, breaking it down into simpler substances.
• Through decomposition, decomposers help to release carbon dioxide back into the atmosphere as part of the carbon cycle.

The Carbon Cycle and Decomposition

• The carbon cycle is a process through which carbon is cycled throughout the environment.
• During the process of decomposition, carbon stored in bodies of dead organisms is released back into the atmosphere in the form of carbon dioxide.
• This release of carbon dioxide contributes to the overall balance of carbon in the carbon cycle.

Impact of Environmental Factors on Decomposition

• The rate of decomposition can be influenced by several environmental factors.
• These factors include temperature, moisture, and oxygen levels in the environment.
• Decomposition is typically faster in warm, moist, and well-aerated environments because these conditions are favourable for decomposer organisms.

Human Impact on Decomposition

• Human activities can impact the rate of decomposition and in turn, the carbon cycle.
• Activities such as deforestation can decrease the amount of organic matter available for decomposition and disturb decomposer habitats.
• Excessive use of chemicals like pesticides can also harm decomposers and slow down the decomposition process.