cropping in tropical regions" by Munnu Singh, Neha Guleria , Eranki V. S. Prakasa Rao, and Prashant Goswami that supports this contention.
"Our estimates show that if 10 % of estimated 107.83 m ha of degraded lands in India are put to vetiver systems, nearly 150 Tg C year−1 can be sequestered which is about 46 % of total C emissions in India. Many other countries such as China (Xia 2003), Brazil (Pereira 2011), and the USA (Truong 2000) have large land areas where vetiver can be cultivated with potential contribution to mitigation. Our studies have shown that vetiver systems have a large potential to sequester C and at the same time provide sustainable solution for livelihoods of farmers".
The research team did not include in their study proven benefits of using vetiver hedgerows that increase soil moisture or crop yields, neither do they include benefits from the farm sale of vetiver plant material for infrastructure stabilization and land restoration, nor the benefits from carbon sequestering and reduced maintenance costs of the increasingly large area of vetiver being used for infrastructure stabilization, and the restoration of contaminated land and water.
We have here a truly unique plant that is able to significantly impact the environment for the better if widely used.