Showing posts with label recharge. Show all posts
Showing posts with label recharge. Show all posts

Wednesday, June 17, 2009

It's hot...and Vetiver's cool.

Vetiver Systems Hawaii just completed its first exhibition at Pacific Expos' 32nd Annual Home and Garden Expo at Honolulu's Blaisdell Exhibition Hall this weekend. Largely an educational opportunity, I was struck by the number of people who desperately need effective slope stabilization that won't leave them penniless. Vetiver was warmly received, and I look forward to visiting those who'd like to explore Vetiver's specific application to their sites.

We've barely reached the middle of June and the weather in Honolulu is sizzling. Oahu farmers are not immune to water shortages. Ever helpful, Dick Grimshaw sent along this link to a Thai paper addressing (and quantifying) Vetiver's ability to maintain moisture and recharge groundwater:
http://www.vetiver.org/ICV4pdfs/DAS01.pdf.
a hui hou,
Mary

Tuesday, November 18, 2008

We CANNOT wait forever!!

In the early 1960s when I first started my professional career as a conservationist and agriculturist in Zambia, soil erosion was a major problem. Nearly 50 years later worldwide erosion is worse. When I worked in Ethiopia 40 years ago, the cost of highway maintenance was very high because of bad drainage and erosion, which are still major and worsening problems in most developing countries. When I worked in eastern Nigeria 30 years ago, the formation of massive gullies was so bad that houses were engulfed. Today the situation is even more dire. When I worked in India 20 years ago, irrigation without recharge was depleting groundwater. Water issues are even worse today. In the past 10 years, water supplies throughout Asia have become increasingly contaminated by agricultural and industrial waste, resulting in serious health problems. Climate change and global temperature changes are causing more violent weather, which results in more frequent and serious storm-related disasters.

What is the world doing about all this?! VERY LITTLE! Why? Politics, cost, the enormous scale of the problem, wrong technologies, agenda conflicts, APATHY, LACK of COURAGE, and LACK of LEADERSHIP. If ACTION is not undertaken on a wide scale many people will die, and our natural resources will be destroyed. The CHALLENGE is to do something, and to do it SOON. Achieving quick results simultaneously in many locations requires community involvement and commitment, and the use of relatively simple technology that can be applied at micro scale.

Very few technologies can meet this challenge. The VETIVER SYSTEM (VS) is one that can. It is easy to train community leaders in VS fundamentals; the work is documented and readily available in the public domain. Vetiver plant material is quickly and easily propagated, and people, given some fairly minor technical support, can identify key locations that require VS application. Here's just one example: A few weeks ago I described the way erosion sediment had destroyed inshore fisheries and coral reefs in Vanuatu. VS stabilized the area and allowed reforestation to occur. By stopping sediment flows, Vetiver allowed the reef and fisheries to recover. This is just one example of thousands of sites that needs help. One publicized application every decade will not solve our problems! Every time a tropical storm strikes the Caribbean, tons of island sediment land in the sea. Effluent from leaking septic systems and other point sources (mines, industrial sites) washes onto beaches and into the sea, and personal property is destroyed. This devastation is predictable and can be prevented. On a small scale, VS can control septic tank effluent. The application of VS followed by tree planting can stabilize point source erosion sites, including watershed minetailings - a source of water borne contaminants. Similarly, VS can stabilize sea walls/dykes, riverbanks, bridge abutments, and roadscan, which can minimize infrastructure and flood damage. The list goes on. This one technology can do it all!

Tens of thousands of paid persons in developing countries are doing very little and making even less impact. They should be retrained and put to work. I can guarantee that these workers will respond positively to good leaders. Schools should introduce VS as part of the curricula for rural children. We know it works! The East Bali Poverty Project changed the lives of 10,000 families by introducing Vetiver to children. No more starvation. No more unbalanced diets. These communities now enjoy good clean water and improved health, roads that don't collapse, and hillsides that don't slide. See http://www.vetiver.org/g/community.htm If nothing is done, developing communities will eventually vanish, and, so, too, the world's resources. As President-Elect Obama says, "We CAN." I say, "We MUST." Now is the time for ACTION - not TALK.

Dick Grimshaw

Wednesday, October 29, 2008

Ethiopia and Vietnam report Vetiver successes

From Debela Dinka - Sustainable Land Use Forum, Ethiopia. According to our partner NGO in Illubabor, Ethio-Wetlands and Natural Resource Association (EWNRA), 17 of 22 districts in Illubabor Province are using vetiver technology, or about 17,000 households. The remaining five districts are expected to adopt the technology. The major impacts of vetiver are: decreased rate of soil erosion; increased yield of maize, sorghum, vegetables – as much as 50% - resulting from soil and water conservation; reduced siltation of wetlands and streams; groundwater recharge which then improved flow of springs, streams and wetlands; survival rate of tree and coffee seedlings reached more than 80%. Vetiver is also used as mulch in coffee plantations; thatch for houses, stores and shades (vetiver grass gives long time service); mattress making (it repels fleas and other insects); homestead hedgerows for beautification; making rope; income (farmers sell vetiver clumps as planting material); and the green leaves of vetiver are cut and spread in and around homes during holidays and social gatherings, including weddings.

In 2001 Paul Truong (Australia) visited his native country, Vietnam, and introduced the Vetiver System to his former colleagues.

From Tran Tan Van - Vietnam. Vietnam, like most countries, suffers natural disasters and environmental degradation. The threat from future rising sea levels puts Vietnam in the top five most endangered nations. Yearly 1000 people die during storms; as a result of toxic pollution of waterways, annual average property damage is $300 billion U.S. The government understands the need to mitigate these effects but has resorted to using piecemeal, conventional engineering works that are very expensive, technically complicated and are not durable. The introduction of VS into Vietnam seven years ago was, for Vietnam, “a timely glass of fresh water to the thirsty desert traveler.” The Vetiver System has been tested, demonstrated and adopted by the government, the research community, the private sector and individuals. The speed of its adoption over large landscapes attests that it is indeed the solution to our myriad problems. Vietnam represents one of the world’s most successful cases of VS use.