success story of the vetiver systen in assam case 1 … · 2018. 10. 16. · waswas notorious for...
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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.
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VetiverVetiver planted in 1m x 1m gridplanted in 1m x 1m grid
VetiverVetiver plants in the 3plants in the 3rdrd monthmonth
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CASE 2
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Very steep slopeVery steep slope-- but no erosion but no erosion after floodafter flood
CASE 3
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This innovate mattress was designed to prevent underwater erosion
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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
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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
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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
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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
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Boat plying over the plantationBoat plying over the plantation
Trying to save the plants. Trying to save the plants. Removing debrisRemoving debris
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Badly batteredBadly battered
Plants recoveringPlants recovering
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Plants coming upPlants coming up
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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
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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
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Mud slide arrestedMud slide arrested
Case 7
Ongoing projects : Ongoing projects : HajoHajo-- NalbariNalbari RoadRoad
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HajoHajo-- NalbariNalbari road road Rows 1m apart, plants @ 15 cmRows 1m apart, plants @ 15 cm
Plantation on Bridge approachPlantation on Bridge approach
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Case 8
Plantation on steep slope in SikkimPlantation on steep slope in Sikkim
Same slope protected by Same slope protected by VetiverVetiver
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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