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As evidence mounts on the effect of the increased amounts of carbon dioxide on global warming, the world looks for alternative methods to mitigate the problem. Because of its longevity and extraordinary root mass, Vetiver is becoming one of the leading contenders for carbon sequestration. This bioengineering application of Vetiver accomplishes the long-term storage of carbon dioxide or other forms of carbon through biological processes. With Vetiver, carbon products are extracted from the atmosphere through photosynthesis and stored permanently in its root mass.

An article published in the September issue of Current Science titled Sequestration of atmospheric carbon into subsoil horizons through deep-rooted grasses – Vetiver Grass Model (PDF) , states in its preamble:

Choosing the strategies to mitigate global warming should envisage sustenance of soil carbon sink, and also long-term locking of excess carbon deep into the soil horizon. Fast growing grasses with penetrating deep root system would facilitate long-term locking of atmospheric carbon below plough layer with reduced chances of being recycled to atmosphere and recuperate soil carbon sink. Vetiver, a non-invasive C4 grass with fast-growing tufted root system, reaching 3 m just in one year could be an ideal global candidate with a holding potential of 1 kg atmospheric carbon, sequestered annually deep into the soil pool from one sq metre surface area.

Posted by Alberto Rodriguez