GENERAL KNOWLEDGE

Detailed explanation-1: -Soil respiration refers to the production of carbon dioxide when soil organisms respire. This includes respiration of plant roots, the rhizosphere, microbes and fauna. Soil respiration is a key ecosystem process that releases carbon from the soil in the form of CO2.

Detailed explanation-2: -Soil respiration is a measure of the carbon dioxide (CO2) released from soil. It is released as a result of decomposition of soil organic matter (SOM) and plant litter by soil microbes and through plant roots and soil fauna.

Detailed explanation-3: -Carbon dioxide is released from the soil through soil respiration, where soil microflora contributes 99 % of the CO2 arising from decomposition of organic matter under alternate wetting and drying and flooded conditions.

Detailed explanation-4: -Such organic matter accumulation significantly increased microbial respiration in those aggregates, which in turn increased the overall rate of CO2 emission from soil to the atmosphere.

Detailed explanation-5: -Active soil microbes respire CO2 at greater rates Burning sugars via respiration provides that energy and releases CO2as a by-product. This CO2can be used by plants covering the soil surface for photosynthesis and/or drift up to the air to join other CO2 molecules in the atmosphere.