Featured Research

from universities, journals, and other organizations

Designing Bioshields, Shelterbelts For Coastal Tsunami Protection

Date:
April 16, 2007
Source:
Iowa State University
Summary:
Researchers are applying their knowledge of agricultural shelterbelts to help protect coastal areas from tsunamis.

Iowa State University researchers are applying their knowledge of agricultural shelterbelts to protect coastal areas from tsunamis at the request of the United Nations' Food and Agriculture Organization (FAO).

Following the devastating aftermath of Hurricane Katrina and the December 2004 tsunami in Southeast Asia, many international planning agencies have searched for ways to prevent such tragedies in the future. Gene Takle, professor of agronomy and geological and atmospheric sciences, and colleagues Mike Chen and Xiaoqing Wu in atmospheric science were asked to develop a set of guidelines for rebuilding coastal forests based on their research on wind reduction by the use of agricultural shelterbelts.

The Iowa State group was commissioned to write a paper on designing coastal forests and shelterbelts, which are known as "bioshields." Takle represented the group at a workshop under sponsorship of the FAO last summer in Khao Lak, Thailand, where hundreds of bodies had washed up on the beach after the 2004 tsunami.

"Much loss of life from this tsunami was attributed to destruction of coastal forests. Villages in India and Southeast Asia that preserved their coastal mangroves suffered far less damage," Takle said. "FAO requested guidelines for rebuilding these bioshields based on our work and understanding of agricultural shelterbelts."

Their suggested guidelines include planting trees as close to the sea as possible; using short salt-tolerant and sparse shelters on the seaward edge; using tall species of high wind resistance on the landward side; and leaving gaps between rows and irregularly within the rows to extend the protected zone, but allowing for onshore flow of the cooling sea-breeze in nonhazardous conditions.

"Very little research has been done on this topic, so we used our computer model and previous experience on flow through living barriers to evaluate alternative shelter designs like tree heights, density, spacing and orientation to develop our recommendations," Takle said.

Federal managers in Southeast Asia and India will consider the guidelines when rebuilding damaged coastal areas.

Takle has teamed with meteorology graduate students Dan Rajewski and Sarah Schmidt to conduct additional studies to refine the preliminary guidelines he presented at the Thailand workshop and explore additional uses of bioshields against high winds.


Story Source:

The above story is based on materials provided by Iowa State University. Note: Materials may be edited for content and length.


Cite This Page:

Iowa State University. "Designing Bioshields, Shelterbelts For Coastal Tsunami Protection." ScienceDaily. ScienceDaily, 16 April 2007. <www.sciencedaily.com/releases/2007/04/070413215713.htm>.
Iowa State University. (2007, April 16). Designing Bioshields, Shelterbelts For Coastal Tsunami Protection. ScienceDaily. Retrieved August 21, 2014 from www.sciencedaily.com/releases/2007/04/070413215713.htm
Iowa State University. "Designing Bioshields, Shelterbelts For Coastal Tsunami Protection." ScienceDaily. www.sciencedaily.com/releases/2007/04/070413215713.htm (accessed August 21, 2014).

Share This




More Earth & Climate News

Thursday, August 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Unsustainable Elephant Poaching Killed 100K In 3 Years

Unsustainable Elephant Poaching Killed 100K In 3 Years

Newsy (Aug. 20, 2014) Poachers have killed 100,000 elephants between 2010 and 2012, as the booming ivory trade takes its toll on the animals in Africa. Video provided by Newsy
Powered by NewsLook.com
Charter Schools Alter Post-Katrina Landscape

Charter Schools Alter Post-Katrina Landscape

AP (Aug. 20, 2014) Nine years after Hurricane Katrina, charter schools are the new reality of public education in New Orleans. The state of Louisiana took over most of the city's public schools after the killer storm in 2005. (Aug. 20) Video provided by AP
Powered by NewsLook.com
Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

AFP (Aug. 19, 2014) A solar cell that resembles a flower is offering a new take on green energy in Japan, where one scientist is searching for renewables that look good. Duration: 01:29 Video provided by AFP
Powered by NewsLook.com
Disquieting Times for Malaysia's 'fish Listeners'

Disquieting Times for Malaysia's 'fish Listeners'

AFP (Aug. 19, 2014) Malaysia's last "fish listeners" -- practitioners of a dying local art of listening underwater to locate their quarry -- try to keep the ancient technique alive in the face of industrial trawling and the depletion of stocks. Duration: 02:29 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins