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    Unprotected natural or constructed earthen slopes are a major point source erosion problem that can result in serious sediment flows to lower catchment sites, contamination of rivers and streams, water quality reduction, slope failure and slippage that often result in landslides, economic damage to property, and loss of life. The Vetiver System can effectively and at low cost, protect slopes, stop or significantly reduce the risk of slippage, and prevent down stream water contamination. This is because vetiver grass roots have a high tensile strength - average 75 MPa that can increase shear strength of soil by a factor of 40, and because when planted on slopes vetiver will reduce slope hydraulic pressures through the removal of water. The combination of slippage prevention (mass wastage of soil) and its sediment filtering ability results in very clean water moving down the catchment.

    The handbook: The Vetiver System for Slope Stabilization describes in detail VS applications. It has been written primarily for engineers and contains case studies and many color images of VS applications. The book can be downloaded or can be purchased as hard copy from Amazon.com>

    TVNI's archives contains many papers and references to VS for slope stabilization.

    TVNI's photo galleries provide images of slope protection: Gallery 1, Gallery 2

    More Slide Shows on Slope Stabilization:
    Vetiver System for public utility and right of way protection (1)
    Vetiver System for Railroad Protection (1)
    Vetiver System for Railroad Protection (2)
    Vetiver System for river and stream bank erosion control
    Vetiver System for dam, pond and lake bank stabilization
    Vetiver System for rural farm to market roads
    Vetiver System for Stabilzing Highway Batter Slopes
    Vetiver System for the Stabilization of Highway Fill Slopes
    Vetiver System for Highway Drain protection
    Vetiver System for Bridge Abutment Protection


    Application of VetiverSystem for Control of River Erosion
    Photo Essay By Shantanoo Bhattacharyya, Executive Engineer, PWD, Assam & Volunteer in Bioengineering
    shantanoo.bhattacharyya@gmail.com
    Ho Chi Minh Highway (Vietnam) Fourteen Years Later
    (2000- 2014)
    A Photo Essay on the Role of Vetiver System in Controlling Erosion on the Highway. .Following a Visit in February 2014
    Dr. Paul Truong,TVNI Technical Director and Director for Asia and Oceania, Veticon Consulting, Brisbane , Australia
    <P.Truong@veticon.com.au>

    Global Review (2013) on the Application of
    Vetiver System for
    Infrastructure Protection

    Presentation by Paul Truong

    GEOTROPISM IN VETIVER

    (2013)

    A photo essay of vetiver grass applied to various slope stabilization applications by Paul Truong, TVNI Technical Director.

    THIS IS THE BEST COLLECTION OF VS SLOPE STABILIZATION EVER PUBLISHED AND EXPLAINS WHY VETIVER IS SO EFFECTIVE

    Integration of Vetiver System within conventional erosion control technologies in Brazzaville, Republic of the Congo: VARIOUS VIEWS OF CASIS GULLY

    A series of before and after images of the restoration of this massive gully. Courtesy of Alain Ndona - Vetiver Engineer

    Slope Stabilization in Itaipava‐Petropolis

    The vetiver solution was a total success after a landslide in 2008. This articile is particularly relevant now that the catastrophic landslides are back in full force in 2011. Read the pdf

    assam

    River and steep bank stabilization in Assam, India.
    Two related files by Oliver Hawes and Shantanoo Bhattacharyya showing and discussing the work carried out by Shantanoo on some very big rivers in Assam, including the mighty Bramaputra. There were some failures, but mostly it was succesful and some very useful lessons can be learnt from this work. More at our blog site.

    Vetiver System for Erosion and Sediment Control, and Stabilisation of Steep Slopes

    Power Point by Paul Truong (pdf MB 2.6) With special reference to Vietnam

    Application of Vetiver Grass Technology in the Stabilisation of Road Infrastructure in the Wet Tropical Region of Australia

    Power Point by Paul Truong (pdf MB7.4)

    Vetiver System for River Bank Stabilization

    Power Point with special reference to river bank stabilization in Australia and Vietnam by Paul Truong. (pdf MB1.2)

    MOUNTAIN ROAD PROTECTION COLOMBIA (including Vetiver)

    Meclas Ecologicas Parrael Control dela Erosion y La Estabilidad de Taludes pdf MB 1.2 English Spanish

    VETIVER GRASS SYSTEM FOR LANDSLIDE REHABILITATION WITH GEOFABRICS

    Power Point by Paul Truong. (pdf MB1.0)

    VETIVER GRASS SYSTEM FOR LANDSLIDE REHABILITATION WITH HARD STRUCTURE

    Power Point by Paul Truong.pdf (MB1.6)

    Urban Ravine Stabilization in Brazzaville, Congo

    This is a modified power point of Alain Ndona's work in stabilizing some massive urban ravines in Brazzaville. This follows his very succesful work in ravine stabilization in the DR Congo. Alain can be contacted by email.

    PROTECCION DE TALUDES CON EL SISTEMA VETIVER FENOMENO HIDROTERMALISMO
    CASO CENTRAL HIDROELECTRICA PLATANAR
    SAN CARLOS, COSTA RICA

    This review by Yorleny Cruz (in Spanish) looks at the use of VS for stabilizing earthworks and canal banks of hydro electric scheme in Costa Rica. The stabilization program was started 9 years ago, with succesful results. Yorleny is the new Coordinator for the Costa Rica Vetiver Network and can be contacted by email

    Wave Run-up Reduction through Vetiver Grass

    This is an important MSc thesis by Auke Algera. It should be read in conjunction with Jasper Foch's thesis on the same topic.

    The Vetiver System for Infrastructure Stabilization in Africa

    This is a modified power point showing how VS has been used for slope stabilization in Madagascar. It also shows how local communities have benefited from the production of vetiver plant material. The author, Roley Noffke, is a highly skilled and experienced road engineer and has worked widely with various Vetiver System applications. He can be contacted by email.

    LAND SLIDES & PROTECTION

    This short series of images from Van Tran Tan of Vietnam gives a good idea how Vetiver System stabilized land slide prone slopes on the Ho Chi Minh Highway

    Vetiver - Soluciones Ambientales
    en Biotecnología.

    Vetiver - Soluciones Ambientales en Biotecnología. PowerPoint in Spanish by Yorleny Cruz Chaves, MBA Email

    madagascar network

    Vetiver Network Madagascar has produced its first newsletter. In the past Madagascar has demonstrated some excellent applications of VS. Now Yoann Coppin
    of La Plantation Bemasoandro - VETIVER SYSTEM APPLICATIONS MADAGASCAR is developing a network and sharing information. Thanks Yoann for your initiative. Learn more ...

    river bank stabilization

    River bank stabilization in southern Chile. Germán Wallace of Pineda Bioingeniería Wallace y Cía, Ltd aConcepcion, Chile and Paul Truong
    TVNI, Brisbane, Australia, have done some very interesting river bank stabilization in the cool temperate region of southern Chile. We hope to see an expansion of this type of VS application in Chile and elsewhere. Learn more about this initiative.

    x

    Fixing a major sand dune in Madagascar. Carol Knoll and Roley Nöffke's illustrated article in July/August 2008 issue of Environmental Management. Hydromulch (Pty) Ltd has been involved in a major sand fixing, erosion control and slope stabilisation undertaking along newly constructed roads at the Rio Tinto/QMM Ilmenite Project at Fort Dauphin in Madagascar. Wind blown sand was a major issue and a decision was made to use barrier netting and Vetiver Grass hedgerows

    Mekong

    NMEKONG RIVER BANK STABILIZATION - CAMBODIA
    TVNI has been working with Mr. Tuon Van of Cambodia in stabilizing a stretch of river bank adjacent to his farm. He had been losing land at an alarming rate and a major highway is also at risk. Tuon Van generously shared his photos and experience with us - it is not yet finished! Vetiver survived 4-5 months totally submerged under water, some of it 10 meters below the river surface!! Mekong Read and See More

    canal

    TECHNICAL HANDBOOK
    This handbook extracted from "The Vetiver System - A Technical Reference Manual by Paul Truong, Tran Tan Van and Ellise Pinners. Quick download and in full color.
    Vetiver System For Infrastructure Protection and Disaster Mitigation (html with images). x Read more

    dd

    THE VETIVER SYSTEM FOR SLOPE STABILIZATION - AN ENGINEERS HANDBOOK: This book describes the problems relating to slope stabilization and the use of VS for disaster mitigation. It has some excellent images and case studies. The nook can be downloaded at no charge or purchased from Amazon.com

    Gulf of Mexico. Disaster Mitigation. Technical Fact Sheet

    VETIVER SYSTEM FOR US GULF REGION: It is hurricane season again, and we will be reminded once again to do more for coastal and levee protection. The Vetiver System is one tool that can help provide protection in the long term. Here is a revised technical fact sheet to support VS use in the Gulf states. There is a new vetiver grass supplier in Alabama, Charlie and Bonnie Pate; they have also installed vetiver

    gg

    KENYA: Mseto Environmental Self Help Group Vetiver Grass Project
    Located in a rather dry area of Kenya on the Voi River this group is using vetiver for a number of applications including river bank stabilization and soil conservation.
    55 Read more

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    The Use of Vetiver in Coastal Engineering: A single hedge of Vetiver grass planted on the outer slope of a dike can reduce the wave run-up volume by 55%, in contrary with sod-forming grasses that give no reduction. Planting multiple hedges along the contour of the outer slope might result in even more reduction. The application of Vetiver grass on existing dikes may provide a substantial reinforcement of these dikes.
    a Read More

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    Delft University Vetiver Research: Delft University is carrying out research on how the Vetiver System can be used for coastal defences. Here is a summary of its work by Gerrit Jan Schiereck.

    a

    China: The Xinchang Railway Company located in Nanjing, the capital of Jiangsu Province, became the first railway to form a Vetiver company. It was launched in 2001 and at that time began to use VS. On 20 April 2001, about 120,000 tillers of Vetiver planting material were transported from a village in the Dabie Mountains where farmers had been producing planting materials for contracted Vetiver projects since 1998 as part of a poverty alleviation program and an environmental protection scheme.

    Tico Times - Costa Rica

    Interview with Yorleny Cruz - Coordinator of The Costa Rica Vetiver Network

    pic month

    Alain Ndona -- Vetiver Specialist in Congo DR.

    Alain Ndona is a Vetiver Systems specialist working in Congo DRC. He has brought quality work to on farm vetiver applications and for slope stabilization of highways and urban ravines. Africa needs persons like Alain if the continent is to successfully deal with climate change, declining water availability, and accelerating erosion. You can read more about Alain's work in the attached files.
    California File 1, File 2, File3 California French translation

    Vetiver in California - For 11 years Doug Richardson has been quietly introducing the Vetiver System for slope stabilization and erosion control in southern California in the Santa Barbara area. He has over 60 projects now, and they show just how effective vetiver can be. We have received over the years a lot of flack about the potential invasiveness of vetiver grass, particularly by botanists. In 11 years Doug has seen no evidence of invasive behavior of this Sunshine cultivar of vetiver grass. This confirms evidence from PIER (Pacific Island Ecosystems at Risk) assessment that vetiver grass has a very low risk factor of minus 8. Even the most stringent countries will allow imports of plants with a plus 1 risk assessment.

    In California where fires and mud slides are major problems we have found that The Vetiver System will prevent slides, and even if burnt vetiver will recover again in a very short period (3 weeks) amd still protect the slopes.

    As shown in the images that Doug has provided vetiver will stabilize steep slopes, stop slides, protect roads from sediment flows (thus reduce maintenance costs) and at the same time look beautiful and green when most other plants are dried up. These are only just a few of the applications of this unique plant. It can also be used for levee stabilization, mine tailing reclamation, and the treatment of contaminated water and land.

    Californians, at this uncertain time of climate change, this System is just made for you.

    Thank you Doug for leading and showing us the way.

    California

    Indonesian highways agency has, with support of the Indonesian Vetiver Network (IVN) and TVNI, has carried out a trial on a 70º batter slope (laterite soil) comparing vetiver grass with other local grasses, including bahia. The results are convincingly in favor of the Vetiver System. So much so that the Government and World Bank will apply VS throughout the Indonesian highway system. Well done David Booth (IVN coordinator).
    California See Details

    River and steep bank stabilization in Assam, India.
    Two related files by Oliver Hawes and Shantanoo Bhattacharyya showing and discussing the work carried out by Shantanoo on some very big rivers in Assam, including the mighty Bramaputra. Thee were some failures, but mostly it was succesful and some very useful lessons can be learnt from this work. More at our blog site.

    RESIDENTIAL SLOPE PROTECTION IN THE PHILIPPPINES

    Images of a very steep residential slope being stabilized with vetiver

    Majuli River Stabilization - Doria Bridge abutments - Assam

    Shantanoo Bhatacharyya movie: see....

    Vetiver Travel Diary

    Maria Calderon, a Cornell University Landscape Architecture Graduate, from Guatemala is taking a six month sabatical studying vetiver. This and subsequent posts will be of great interest to many. Dreer Travel Award. October Report. Read on

    VETIVER ROOTS
    FOR SOIL REINFORCEMENT

    A collection of Vetiver Root Images by Paul Truong. See...

    Vetiver System for Infrastructure

    A useful Power Point by Paul Truong

    WASTE WORKSHOP WITH DOCEY LEWIS
    September 2010

    Women Weave of India had organised a workshop which aimed at using the handloom waste produced at the Gudi Mudi center as well as the waste produced by other weavers across Maheshwar town. They also iuncorporated vetiver as a resource. This article with images should be of interest to those working with poor communities. Read more

    ECO MORTAR

    Technique from Columbia combining vetiver with eco-mortar (Spanish translation)

    Methods to Improve Vetiver Grass Establishment on Steep Slope

    A very helpful presentation by Paul Truong

    VETIVER FOR COASTAL PROTECTION

    A few images of some impressive sea front protection in Brazil, said to be 2 km in extent.

    USO DO CAPIM VETIVER NA ESTABILIZAÇÃO DE TALUDES E ENCOSTAS (USE OF VETIVER GRASS IN THE STABILIZATION OF SLOPES AND HILLSIDE)

    A useful PowerPoint presentation by Aloisio Rodrigues Pereira - Bioengineering Director of Deflor Brazil - addressing the use of the Vetiver System for slope stabilization.

    Bioingeniería de Suelos: historia y conceptos

    Soil Bioengineering: history and concepts - short paper in Spanish by Ing. Civil Luiz Lucena of DEFLOR

    BIOINGENIERÍA DE SUELOS (SOIL BIOENGINEERING)

    (Brazil - Portuguese) An excellent PowerPoint presentation by Ing. Civil Luiz Lucena of DEFLOR covering a range of Bio-engineering techniques for slope stabilization.

    RECUPERACAO DE AÅLREAS DEGRADADAS

    (Brazil - Portuguese) PowerPoint presentation of the rehabilitation of area devastated by major land slip at Itaipava/Petropolis, Rio de Janeiro State. Interesting combination of engineering, matting, and Vetiver System. Time Period: January 2008 to April 2010. Work by João Henrique Eboli

    RESIDENTIAL PROPERTY SLOPE STABILIZATION - BRAZIL

    Images - roughly in chronological order - shows some of Paulo Rogerio's work in Brazil for stabilizing steep slopes.

    Methods to Improve Vetiver Grass
    Establishment on Steep Slope

    Pictorial presentation by Paul Truong

    Vetiver System for rehabilitating and stabilizing lavakas associated with railway and pylons in Madagascar

    This is the first time that VS has been used in Madagascar to stabilize lavakas. This work is by Yoann Coppin. More....

    AN ASSESSMENT OF STRENGTH PROPERTIES OF
    VETIVER GRASS ROOTS IN RELATION TO SLOPE STABILIZATION

    Original paper by Diti Hengchaovanich and Nimal S. Nilaweera.

    VETIVER GRASS SYSTEM
    FOR LANDSLIDE REHABILITATION
    WITH GEOFABRICS

    Photo Essay - Treatment of a slip slope in Brisbane, Australia by Paul Tuong (May 1 2013 5MB)

    Use of Vegetation and Geo-Jute in Erosion
    Control of Slopes in a Sub-Tropical Climate

    Research paper by Mohammad Shariful Islam, Shamima Nasrin, Md. Shahidul Islam, and Farzana Rahman Moury (May 1 2013 1MB)

    Vetiver for Embankment and Satbilization

    An early paper (mid 1990s) by Dr. P.K. Yoon of Malaysia (April 22 2013, 4MB)

    Selection of photos showing the treatment of Lavakas (landslips) in Madagascar

    This work by Yoann Coppin shows how major landslides that devastate Madagascar can be treated using Vetiver System

    VETIVER SYSTEM AS A SOLUTION FOR
    EROSION AND SHALLOW FAILURE
    CONTROL OF ROAD SLOPE

    Presentation relating to the use of vetiver for infrastructure stabilization in Indonesia

    REPORT ON THE APPLICATION OF VETIVER SYSTEM IN THE CITARUM RIVER
    BASIN, INDONESIA

    Report by Paul Truong and David Booth. On farm erosion control, river bank stabilization and pollution control

    Slope stabilization - Ecuador

    New imagery from Ing. Daniel Mascaró

    Use of vetiver in SE China for landslide debris stabilziation and more

    We don't hear a lot from China but this file has some interesting applications post earthquake mitigation. Planting technique could be improved.

    Integration of Vetiver System within conventional erosion control technologies in Brazzaville, Republic of the Congo: VARIOUS VIEWS OF CASIS GULLY

    A series of before and after images of the restoration of this massive gully. Courtesy of Alain Ndona - Vetiver Engineer

    Promotion of Vetiver
    grass in Iran

    Promotion of Vetiver
    grass in Iran
    - pdf file
    By: Jamshid Sabetan fadaei
    & Sasan Aleebrahim
    E mail: IRANVETIVER@YAHOO.COM
    P.O. Box 19575567, Tehran

    VETIVER/BIOCHAR Solution
    Sand Stabilization
    High Speed Train Medina-Mecca

    Presented at INECO - 28 January 2013
    Coordination: a.delacruz@greenresults.eu

    IIT Kharagpur - Tata Steel
    Joda East Mine
    Erosion Prevention and Slope Stabilization

    Photo presentation of first experimental application of Vetiver System to Indian Iron Ore mine
    Prof Khanindra Pathak and Shantanoo Bhattacharyya, and Paul Tuong (04/13 MB3.5)

    LAND SLIP AND EROSION
    CONTROL USING VETIVER
    GRASS TECHNOLOGY

    By Dr. P.K. YOON
    KUALA LUMPUR,
    MALAYSIA A very good example of high quality application of VS pdf file March 2013. MB5)

    Regreening gunnited slopes in HongKong using vetiver

    The presentation of Dr. P.K.Yoon's work in regreening gunnited highway cut slopes in HongKong is unique. It is a worth reminding ourseleves at this time of his orginal work on vetiver whilst he was at the Rubber Research Station of Malaysia nin the early 1990s. Hism seminaL reportm is of value tod ay as it was 20 years ago. Look See at Vetiver

    Vetiver grass in Iran
    (by photo)

    Presentation by Jamshid Sabetan fadaei
    & Sasan Aleebrahim Iranian association for Vetiver Promotion
    E mail: IRANVETIVER@YAHOO.COM
    P.O. Box 19575567, Tehran

    Images of slope stabilization in Brazil using Vetiver and other associated applications

    This application was undertaken by: A. Rodrigo Zaleski - VETIVER Soluções Ambientais <zaleski@vetiverambiental.com.br>

    Stato della ricerca e applicazioni del
    Sistema Vetiver

    PowerPoint (pdf)
    Paul Truong* and Marco Forti**
    *Director, The Vetiver Network International and Veticon Consulting,
    Brisbane, Australia Email: <p.truong@veticon.com.au>
    **Coordinator, Vetiver Italia Network and Vetiver Sardegna
    Email: <marforti@gmail.com>

    Les Progrès Récents de R & D et
    Applications du Système Vétiver dans
    Traitement des Eaux Usées

    Powerpoint (pdf)
    Paul Truong* et Etienne Richard**
    * Directeur, The Vetiver Network International et Veticon Consulting,
    Brisbane, Australia.
    Email: p.truong@veticon.com.au
    ** Directeur Technique, Kepwater Engineering, Lourdes, France
    Email: kepwater@wanadoo.fr

    ESTABILIZACION Y CONTROL DE EROSIÓN EN JARILLONES

    PowerPoint of River Bank and slope stabilization using vetiver in Jarillones, Colombia

    The Landslide Handbook—A Guide to Understanding Landslides

    This is a very useful handbook by the USGS. Vetiver gets a mention.
    English, Spanish, Portuguese also 100% vetiver application for landslide rehab in Brazil

    Vetiver System in Iran
    Technical Manual

    Salman Shooshtarian of Iran has informed TVNI about ongoing work with VS in his country (see).  He and Ali Tehranifar have translated the Vetiver Grass Manual by Truong et al into Persian and there work has now been published in by Iranian Agricultural Science Publications: http://www.adinebook.com/gp/product/6005410754

     


    TVNI Mission
    The Vetiver Network International (TVNI) promotes the worldwide use of the Vetiver System (VS) for a sustainable environment particularly in relation to land and water.

    Please support TVNI operations with a donation (your tax deductible donation will generate an emailed receipt)


    Network history, achievements and timeline presentation


    For Vetiver users in Kenya: join the Platform for Land Use Sustainability (PLUS-Kenya). See details on VS applications,
    and other innovations for sustainable Land and Water Resource Management.


    For Californians who need to stabilize slopes, Go to this picture gallery link and a special California related flyer.


    USA users - go to this Plant Guide about Vetiver (Sunshine cultivar), published by USDA/NRCS - and be assured of its approval.


    BUY VETIVER SYSTEM TECHNICAL MANUALS at TVNI's E Book Store English, French, Spanish and Swahili (color images) and AT
    AMAZON.COM


    English, French, Mandarin, Portuguese, Spanish, Swahili, and Vietnamese editions - download free


    Compare Vetiver System for on farm soil and water conservation with engineered structures.


    Past pix of the month