Turnover of Carbon

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Soil Microbiology Origin of Life Origin of Land Plants Beginnings of Agriculture Biosphere Turnover of Carbon Turnover of Nitrogen

Turnover of Carbon

The Turnover of Carbon

It has been estimated that the atmosphere has about 700 billion tonnes (t) of carbon and almost an equal quanity is locked up in the dead organic matter on land. The living plants on land possess about 450 billion t of carbon which naturally undergoes interchange with atmospheric carbon. Coal and oil resources, however, account for about 10,000 billion t of carbon.

Carbon fixation is the pivotal event in the biosphere and other cycles in nature depend on the extent and magnitude of his process. All organisms on land and sea which possess chlorophyll use solar energy to combine CO₂ and H₂O and form carbohydrates with the release of O₂ into the atmosphere. Part of the carbohydrate is directly consumed by plants for energy and in the process, CO₂ is liberated through roots and leaves. Some of the respiration. Generations of plants an animals leave behind their remains which are decomposed by microorganisms in soil and in the process, the carbon in their tissues gets converted to CO₂.

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Beginnings of Soil Science Major Types of Beneficial Interactions Associations Between Plants and Soil Microorganisms Major Microbiological Process in Soil by Free Living Microorganisms Which Indirectly Influence Plant Growth

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