Question

The rate of decomposition of detritus is affected by the abiotic factors like availability of oxygen, pH of the soil substratum, temperature etc. Discuss.

Answer 1

Decomposition of detritus is affected by the abiotic factors like,

• Availability of oxygen- because it is important for decomposition which is an energy requiring the process.
  
• Nitrogen - it's presence along with sugars increases the rate of decomposition.
  
• pH - Lower levels imply acidity, hence lower bacterial population, which decreases the rate of decomposition.
  
• soil substratum- the lower levels show decreased decomposition and it is highest in the upper substratum.
  
• Temperature-slightly higher temperature and moist conditions enhance bacterial growth, hence increase the rate of decomposition.