Vetiver System in river and canal bank stabilisation in central Vietnam: successes and failures ten years later
Date Posted: 25/04/2013 - 09:32:13
Following a series of successful trials, in October 2002 the local Dike Department also decided to mass plant the grass on more bank sections of several rivers and subsequently, Vetiver grass was recommended for use in another natural disaster mitigation project in Quang Ngai province, which was funded by AusAid for protection of dikes and irrigation canals in several districts against flash flood and sea water intrusion. Some design modifications have been introduced to better adapt Vetiver grass to the local conditions. For example, mangrove fern and more salt tolerant grasses are planted on the lowest row to better withstand the high level of saline water and effectively protect the embankment toe.
So that this paper discusses the successes and failures following recent assessment of the projects and lesson learnt.