SUCCESS STORY OF THE VETIVER SYSTEN IN ASSAM Case 1

Highly eroded Highly eroded KolongKolong river bankriver bank

Same stretch prepared for Same stretch prepared for plantationplantation-- note the very steep note the very steep

slope. slope.

VetiverVetiver planted in 1m x 1m gridplanted in 1m x 1m grid

VetiverVetiver plants in the 3plants in the 3rdrd monthmonth

CASE 2

Very steep slopeVery steep slope-- but no erosion but no erosion after floodafter flood

CASE 3

This innovate mattress was designed to prevent underwater erosion

Another picture of plantation in the Another picture of plantation in the 33rdrd monthmonth-- after 2 floodsafter 2 floods

33rdrd month. Already withstood 2 month. Already withstood 2 floodsfloods

After several floods. Note the After several floods. Note the mattress completely buried in silt.mattress completely buried in silt.

CASE 4

Erosion of the Brahmaputra Erosion of the Brahmaputra downstream of downstream of disangmukhdisangmukh

The crack before slumpingThe crack before slumping

Planting started on 28/2/2010 and ended Planting started on 28/2/2010 and ended 25/3/201025/3/2010

Heavy rain started from 1Heavy rain started from 1stst week of Marchweek of March

Complete inundation on 17/4/2010Complete inundation on 17/4/2010

Devastation by flood. Flood water Devastation by flood. Flood water rose by about 6 rose by about 6 metremetre

Boat plying over the plantationBoat plying over the plantation

Trying to save the plants. Trying to save the plants. Removing debrisRemoving debris

Badly batteredBadly battered

Plants recoveringPlants recovering

Plants coming upPlants coming up

Plants on 2/5/2010. Survived 3 Plants on 2/5/2010. Survived 3 floods. NO EROSION SO FARfloods. NO EROSION SO FAR

CASE 5

Note the eroded surfaceNote the eroded surface

CASE 6 Steep slope stabilization in Steep slope stabilization in GuwahatiGuwahati. This slope . This slope was notorious for mud slide. Immediately after was notorious for mud slide. Immediately after

plantationplantation

Plantation after 1 monthPlantation after 1 month

Mud slide arrestedMud slide arrested

Case 7

Ongoing projects : Ongoing projects : HajoHajo-- NalbariNalbari RoadRoad

HajoHajo-- NalbariNalbari road road Rows 1m apart, plants @ 15 cmRows 1m apart, plants @ 15 cm

Plantation on Bridge approachPlantation on Bridge approach

Case 8

Plantation on steep slope in SikkimPlantation on steep slope in Sikkim

Same slope protected by Same slope protected by VetiverVetiver

Same slope today. It has withstood heavy rainfall Same slope today. It has withstood heavy rainfall for more than one month without any landslipfor more than one month without any landslip