1. The grain and crop yield may be called carbon sequestration?
2. If yes, what is the conversion factor i.e. one kg of grain/straw sequestrated how much GHG i.e. CO2 equivalent.
No, grain and crop yield cannot be directly equated to carbon sequestration. While there may be some relation between crop productivity and carbon sequestration, they are distinct concepts with different meanings.
Plants, including crops, play a role in carbon sequestration. Through photosynthesis, plants absorb CO2 from the atmosphere and convert it into organic carbon, which is stored in their tissues, roots, and in the soil as organic matter. This process helps to reduce the amount of CO2 in the atmosphere and offset greenhouse gas emissions.
While crop growth can contribute to carbon sequestration through the absorption of CO2 during photosynthesis, the term "carbon sequestration" is typically used in a broader context to refer to actions and strategies that deliberately enhance carbon storage in forests, soils, wetlands, and other natural or engineered systems.
In summary, crop yield refers to the amount of agricultural produce obtained from a specific area, while carbon sequestration is the process of capturing and storing carbon dioxide to mitigate climate change. While crop growth can contribute to carbon sequestration to some extent, the concept of carbon sequestration encompasses a broader range of activities and mechanisms beyond just crop yields.
The problem Gaurav emphasises is that most of the C fixed in crops has a short half life
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