Featured Research

from universities, journals, and other organizations

Trees Kill Odors And Other Emissions From Poultry Farms

Date:
August 22, 2008
Source:
American Chemical Society
Summary:
Trees aren't just for wood and decoration -- they may also destroy odors. Scientists are reporting data showing that just three rows of trees planted around poultry farms can cut nuisance emissions of dust, ammonia and odors from poultry houses.

Scientists report that planting three rows of trees around poultry farms can reduce emissions of dust, ammonia and odor.
Credit: George W. Malone, University of Delaware

Planting just three rows of trees around poultry farms can cut nuisance emissions of dust, ammonia, and odors from poultry houses and aid in reducing neighbor complaints, according to scientists from the University of Delaware.

Related Articles


Some of the emissions were cut by almost half, George W. Malone, Ph.D., and colleagues said here today at the 236th National Meeting of the American Chemical Society (ACS). Trees also provide farms with the added benefit of reducing energy consumption, he noted.

Malone, who is an extension poultry specialist with the University of Delaware, points out that trees have been used in the past as aesthetic barriers. His research on giving trees a new role in the poultry industry began in 2000, when residents near farms on the Delmarva Peninsula in Delaware, Maryland and Virginia complained about dust and odors from poultry houses that had recently switched to new ventilation systems.

In the report delivered today, Malone's team suggested that planting vegetation could reduce ammonia and particulates that may degrade surrounding air and water quality. "We were aware of the concerns locally," said Malone. "We looked at what we could do to address them and the whole area of air quality as it relates to the emission of ammonia from poultry houses."

In response, they proposed planting trees to serve as a vegetative filter that could capture emissions from these family farms, which individually can house an average of 75,000 chickens. In a six-year study, Malone and his team found that a three-row plot of trees of various species and sizes reduced total dust by 56 percent, ammonia 53 percent, and odor 18 percent. The approach is being adopted around the Delmarva.

The research showed that as vegetative "filters," not all trees are created equal. "We've certainly been on a learning curve since 2001 about the different plant materials suitable for this practice. We typically recommend the first row nearest the fans to be either a deciduous tree or a tree with a waxy leaf surface and the other two rows be an evergreen," Malone said. "It's very important to realize there are a number of criteria that you use in tree selection and planting design. What works for our soil types and climate on the Delmarva Peninsula may not be suitable for other locations."

Certain species of trees can grow eight to 10 feet per year, Malone said, which allows for a quick start in creating a buffer. "One initial concern was that it takes years for trees to grow to become effective in filtering out poultry house emissions, but that's not necessarily the case."

Trees reduce poultry house emissions by capturing dust, ammonia and odors in their leaves. They also aid in dispersion of emissions, which reduces the impact on neighbors.

Another factor intensifying the need for environmentally friendly agricultural practices has been the rapid growth of residential development in poultry-producing areas. "Planting trees demonstrates that the poultry grower is being proactive to address potential concerns of neighbors, gives the poultry farm a landscape appearance and increases property values. Adding the vegetative buffers also helps to reduce noise associated with farm operations," he said.

Today, about 35 percent of Delmarva Peninsula's 2,000 farms have developed vegetative buffers, making this region the first in the country to adopt a widespread comprehensive vegetative buffer program, Malone said.

The living filter system also has other benefits, Malone noted. For instance, it conserves energy by increasing shade and cooling in the summer and acts as a buffer to reduce heating costs in the winter.

Not only do trees enhance air quality, they also improve the water quality around poultry farms because they can filter pollutants from soil and groundwater.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Cite This Page:

American Chemical Society. "Trees Kill Odors And Other Emissions From Poultry Farms." ScienceDaily. ScienceDaily, 22 August 2008. <www.sciencedaily.com/releases/2008/08/080820163010.htm>.
American Chemical Society. (2008, August 22). Trees Kill Odors And Other Emissions From Poultry Farms. ScienceDaily. Retrieved October 31, 2014 from www.sciencedaily.com/releases/2008/08/080820163010.htm
American Chemical Society. "Trees Kill Odors And Other Emissions From Poultry Farms." ScienceDaily. www.sciencedaily.com/releases/2008/08/080820163010.htm (accessed October 31, 2014).

Share This



More Plants & Animals News

Friday, October 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How A Chorus Led Scientists To A New Frog Species

How A Chorus Led Scientists To A New Frog Species

Newsy (Oct. 30, 2014) A frog noticed by a conservationist on New York's Staten Island has been confirmed as a new species after extensive study and genetic testing. Video provided by Newsy
Powered by NewsLook.com
Surfer Accidentally Stands on Shark, Gets Bitten

Surfer Accidentally Stands on Shark, Gets Bitten

AP (Oct. 30, 2014) A 20-year-old competition surfer said on Thursday he accidentally stepped on a shark's head before it bit him off the Australian east coast. (Oct. 30) Video provided by AP
Powered by NewsLook.com
Ebola Inflicts Heavy Toll on Guinean Potato Trade

Ebola Inflicts Heavy Toll on Guinean Potato Trade

AFP (Oct. 30, 2014) The Ebola epidemic has seen Senegal and Guinea Bissau close its borders with Guinea and the economic consequences have started to be felt, especially in Fouta Djallon, where the renowned potato industry has been hit hard. Duration: 02:01 Video provided by AFP
Powered by NewsLook.com
Genetically Altered Glowing Flower on Display in Tokyo

Genetically Altered Glowing Flower on Display in Tokyo

Reuters - Innovations Video Online (Oct. 30, 2014) Just in time for Halloween, a glowing flower goes on display in Tokyo. Instead of sorcery and magic, its creators used science to genetically modify the flower, adding a naturally fluorescent plankton protein to its genetic mix. Ben Gruber reports. Video provided by Reuters
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:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

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