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Vetiver has done its job! 14 years later stable slopes, clean road drains, and now mainly native species

Vetiver System for Slope Stabilization in Haiti

Tuesday, January 26, 2010

I thought I would add some pictures to show how that road slopes could be fixed with vetiver using an example from the aftermath of the 1990 Lucon earthquake (7.8) situation in the Philippines that left the highway cut and fill in a very fragile situation. Also a couple of images from south China where vetiver was planted on very steep slopes and how after five or six years native plants regenerated. This is near Guangzhou and is located in an extreme rainfall/typhoon area.

 Many unprotected highway slopes in Haiti like this.

Unprotected slope in Philippine earthquake zone

Reshaped and ready for vetiver planting.

Newly planted vetiver

Fully protected slope after one year.

Close up of vetiver hedges on this slope. Note the soil is very poor

Very steep slope in China, newly planted in 2000

Same slope in 2006 showing native species regenerating naturally amongst the vetiver.


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