• Subscribe to RSS
  • Subscribe via Email
  • Technorati


Turfgrass is a Positive Sequester of Carbon

Outdoor Power Equipment Institute Seeks Correction and Public Disclosure of
Significant Computation Error in AGU and UC-Irvine’s Recently Released Urban
Turf Report; Correction Shows Turfgrass is a Positive Sequester of Carbon

Alexandria, VA – February 15, 2010 – The  <http://www.opei.org> Outdoor
Power Equipment Institute (OPEI) today announced that Dr. Amy Townsend-Small
of University of California – Irvine (UC – Irvine) acknowledged a
computation error of carbon used to maintain turf in the recently released
UC-Irvine study published January 19, 2010, titled “Carbon Sequestration and
Greenhouse Gas Emissions in Urban Turf.”  With the error corrected,
ornamental grass is in fact shown to be a net sequester of carbon even when
inputs are accounted for in grass maintenance.  The correction has been
submitted to the American Geophysical Union (AGU) who published the paper.

Upon review of the report, various flaws were discovered, including one
significant math error that was made in computing the carbon consumed during
mowing.  The carbon from fuel consumption was multiplied by 12, one too many
times, to convert from monthly to annual data.  The error was not caught
during the peer review process prior to publication of the paper by the AGU.
When the computation is corrected, turfgrass actually is a net sequesterer
of carbon dioxide, reversing the conclusions of the original report that was
widely reported in the media.

“Blaming grass for contributing to global warming is a non-starter when you
look at the facts.  The grass in your backyard is working hard to keep us
cool, soak up carbon, capture particulates, produce oxygen, capture rain
water and reduce run-off.  We need to focus on the right plant in the right
place and on management practices that maximize the environmental benefits
potential of turfgrass,” said Kris Kiser, Executive Vice President of OPEI.

Kiser added that, “While the UC-Irvine study, rightly so, highlights that
mismanagement of turfgrass can occur via excessive fertilization and
irrigation, and inefficient maintenance practices, the focus should be on
proper management techniques.”  OPEI stressed that proper management
techniques can minimize carbon emissions and maximize the benefits of carbon
sequestration in turfgrass; for example, proper selection of turf based on
climatic region (drought resistant species) and leaving grass clippings on
the grass to serve as a natural nitrogen fertilizer.

OPEI also noted that the UC-Irvine study did not acknowledge the dramatic
reductions of emissions and fuel use profile for today’s gasoline and diesel
equipment, nor did the study disclose what model equipment and corresponding
fuel use numbers were used.

Mowers and outdoor power equipment today are the cleanest in history and
fully regulated by the U.S. EPA and California’s Air Resources Board since
1997.   EPA Phase 3 and CA Tier 3 compliant product are 90 percent cleaner
than pre 1997 models. Coupled with improvements in emissions, there have
been substantial improvements in mower fuel efficiency.  Additionally,
outdoor power equipment manufacturers have introduced a number of electric,
battery, biodiesel, gasoline-electric and diesel-electric hybrids, propane,
CNG, solar and other alternative fueled products with corresponding
reductions  in carbon output.

Other issues found with the UC-Irvine urban turf study:

.         The paper uses a technique (passive flux chambers) that is often
inaccurate in measuring surface flux because it is not clear that what is
being measured is at equilibrium.

.         The UC-Irvine study focused on one urban center in Southern
California.  Management techniques across the country are variable and
therefore, can’t be applied broadly. Future studies should look at sites in
other parts of the country.

.         The UC-Irvine study did not measure actual inputs of water and
nutrition but made estimates based upon standards or agriculture averages.
Future studies should measure actual inputs or use the best available
technology to estimate inputs of water and fertilization.

To learn more about the carbon sequestration benefits of turfgrass, see the
paper, Technical Assessment
<http://www.opei.org/ht/a/GetDocumentAction/i/1438>  of the Carbon
Sequestration Potential of Managed Turfgrass in the United States by Dr. Ron
Sahu.

About the Outdoor Power Equipment Institute

OPEI is an international trade association representing the $15 billion
landscape, forestry, utility and lawn and garden equipment manufacturing
industry. OPEI is a recognized Standards Development Organization for the
American National Standards Institute (ANSI) and active internationally
through the International Standards Organization (ISO) in the development of
safety standards. Founded in 1952, OPEI represents and promotes the outdoor
power equipment industry before federal, state and international legislative
and regulatory bodies. For more information on OPEI, visit
<http://www.OPEI.org> www.OPEI.org.

##

Kris Kiser

Executive Vice President

Outdoor Power Equipment Institute

(703) 549-7600

KKiser@OPEI.org

EPA’s National “WaterSense” Program a One-Size-Fits-All for Landscaping and Harmful for Lawn and Landscape Industry

By Kris Kiser, Executive Vice President at the Outdoor Power Equipment Institute

The U.S. Environmental Protection Agency (EPA) is positioned to protect water in all forms, from ground water to underground sources to water coming out of the public’s tap. WaterSense, a partnership program sponsored by the EPA, was set up to work with local water utilities, product manufacturers, and retailers on the use of water-efficient products and practices among consumer and commercial audiences. Reinforced through a ‘WaterSense’ label, WaterSense, according to the EPA, “helps consumers easily identify water-efficient products in the marketplace.” WaterSense engineering standards for low flow toilets, shower heads, irrigation equipment and other engineered products are practical and measurable.

However, a disturbing development has taken place in the WaterSense program that threatens to undermine the very water quality standards the agency was established to protect and potentially undermine the well-deserved value of the WaterSense label.

Under its WaterSense new home specification, EPA developed and released draft specifications for new home construction. Home builders that follow the specs will be able to market a ‘WaterSense ®’ home. The draft specs include restrictions on the amount of turf grass that can be used on a home site. These specs are intended for implementation nationwide, border to border, coast to coast – with no exceptions. These specs do not take into account the fact that homes built in Seattle versus Oklahoma City are erected in vastly different climates.

Under current specs, no allowances for regional differences in climate or turf species exists; new home sites will be limited to 40 percent grass use on the site’s “landscape-able” area. It is a one size-fits-all specification. This means the amount of grass that can be planted on a Portland, OR home site would be the same as a home in Las Vegas. Imagine a Tucson desert landscape in Seattle and Boston neighborhoods. And, this also means, extreme desert locales would be allowed 40 percent turfgrass use on a home lot where it should not be used, requiring massive watering.

Our country is simply too large and complex, climate-wise, with multiple climatic zones for a single-national government standard on grass use for home lawns.

Yes, water should be used in a responsible manner. Lush green lawns of Kentucky Bluegrass may not be appropriate for desert landscapes and the landscape industry should work toward best management practices that support maximizing environmental benefits in a conscientious manner. The key is to plant the right plant in the right place to maximize its environmental, lifestyle and economic benefits, not eliminate them.

But, with these specs, the EPA singles out turfgrass as environmentally harmful, unfairly labeling it as a “water hog,” despite the fact that drought resistant turfgrasses are widely available in addition to the existence of large areas of the country that do not have rainfall or water availability issues.

Further, the myriad environmental benefits of turfgrass are ignored under these specs—from its well-documented carbon absorption and sequestering properties to superior water filtration, from its runoff and erosion control capabilities to dust and particulate matter capture properties, from its ability to combat the heat island effect to cooling our urban environments. These benefits –along with significant lifestyle benefits associated with a home’s yard for family use and pets — are somehow completely disregarded.

Yet, despite these facts, the EPA continues to declare war on turfgrass through such erroneous specs as the current WaterSense program promotes — even recommending mulch and artificial turf over grass green space. (Mulch and plastic grass do not filter air, remove water pollutants, produce oxygen or sequester carbon dioxide. How is this better?)

Plants are real, living things not engineered or manufactured to a specific standard. But, rather, they are ever changing and adaptable to variable climatic conditions. And, managed responsibly, have enormous benefits.

EPA has held several public hearings on its WaterSense new home specification, where these landscape criteria have come under attack as being arbitrary, non-responsive to local and regional variances and not based on science. Turfgrass utilization has not been evaluated in a holistic environmental assessment. Yet, while the agency has altered the draft specification to reflect other industries’ concerns, the turf restrictions remain in place. EPA plans to finalize its WaterSense new home specification in November of this year.

If these criteria are adopted in their current form, they will have adverse environmental, lifestyle and economic consequences, and may actually create scenarios that use more water (not less) and severely depress jobs in a host of businesses involved in the $150 billion a year lawn and landscape industry.

In its current form, the landscape criteria of the EPA’s WaterSense program, which limits the amount of turfgrass on every home built in the United States, is simply bad public policy that will produce negative outcomes for our environment and will eliminate the green jobs for which the current Administration has been vocally supportive.

Kris Kiser is the Executive Vice President of the Outdoor Power Equipment Institute (OPEI). OPEI is the international trade association representing the $15 billion landscape, forestry, utility and lawn and garden equipment manufacturing industry.

What you can do about EPA’s “WaterSense” Program

OPEI, the National Turfgrass Federation, and other interested parties have submitted comments to EPA, have testified at hearings, and have met repeatedly with agency staff on our concerns. These actions, while necessary, have not been productive with the agency.

However, the numerous inquiries the agency has received from Members of Congress about the specification’s draconian treatment of turf – the singling out, in effect, of this one type of groundcover — has earned the attention of EPA. These inquiries were prompted by letters and phone calls from constituents whose livelihood depends either directly or indirectly on turfgrass or from those who seek to maintain the lifestyle and holistic environmental benefits associated with home lawns.

We urgently recommend all interested parties to write to their congressional representative and Senators asking him or her to raise these issues with EPA and ask that the agency set aside the WaterSense outdoor landscape criteria for now, evaluate the science, and work with stakeholders to improve the product. Contact information for your representatives can be found at www.senate.gov and www.house.gov or you can contact Kris Kiser at OPEI at kkiser@opei.org.

Remind lawmakers that when properly managed and maintained, the benefits of turfgrass are multifold:

Captures Water Runoff and Dust

• Turfgrass does an excellent job of capturing water runoff and lessening dust and particulate matter pollution, versus alternatives such as hard surfaces, mulched areas and impervious or bare surfaces.

According to a Council for Agricultural Science and Technology (CAST) 2006 Publication, turfgrass decreases dust emissions and for controlling soil erosion, a live, functioning grass cover, including urban lawns, is a cost-effective option, since a grass root system is one of the most effective in soil stabilization because of the fibrous, dense character of its roots.

Lessens Heat Island Effect

• Turfgrass lessens the “heat island” effect, especially in urban areas. Urban areas generally have higher temperatures than surrounding rural areas, well known as the urban “heat island” effect. The Environmental Protection Agency (EPA) states that “the annual mean air temperature of a city with 1 million people or more can be 1.8–5.4°F (1–3°C) warmer than its surroundings. In the evening, the difference can be as high as 22°F (12°C).”

Captures, Stores Carbon in Roots

• Properly managed turf areas are significant carbon sinks. When kept in a growing state, carbon sequestration in turf areas can range anywhere from four to seven times the carbon emissions, according to a report, Technical Assessment of the Carbon Sequestration Potential of Managed Turfgrass in the United States by Dr. Ranajit (Ron) Sahu. See study at: http://www.opei.org/ht/d/sp/i/1428/pid/1428

Boosts the Oxygen Footprint

• Turfgrass can boost your oxygen footprint. Compared to bare ground, non-green areas, and lawn substitutes, such as painted concrete or even artificial turf, actual grass and green areas generate oxygen. For example, a turf area 50′ x 50′ produces enough oxygen to meet the everyday needs of a family of four and each acre of grass produces enough oxygen for 64 people a day. (Source: http://www.turfgrasssod.org/lawninstitute/environmental_benefits.htm)

Propane Powered Line Trimmer

I was sent this video about a propane powered line trimmer. Check out the video and let me know your thoughts.

Design an Eco Friendly Backyard

Your backyard is your own personal sanctuary. It is a place where you can relax and take some much needed time to reconnect with nature. You want your backyard to be as visually appealing as possible, while also insuring that it is environmentally friendly. You, your children, and even your pets need a clean and safe outdoor space where that they can enjoy nature as well as exercise. It is as essential that your yard be as clean and safe as it is green.

For starters, make sure to only apply eco-friendly fertilizer to your lawn and gardens. If your plants are growing in quality soil, then you will require fewer pesticides and other potentially harmful chemicals. This will also help reduce the risk of dangerous chemical run off when it inevitably rains. If you mulch your yard twice a year, then you will create stronger plants that are more resistant to bugs and other such pests.

You should also refrain from over watering your lawn. Wait until your lawn looks like it’s beginning to dry out before you begin watering. People have a tendency to water their lawn often and with little water. If you water your yard rarely, but deeply saturate the soil, then your grass will build stronger roots which will help protect it in the long run. The stronger your grass, the less susceptible it will be to weeds.

Invite some woodland creatures to spend time in your eco-friendly yard with you. Add bird feeders, fountains, ponds and other items that will attract birds, frogs, squirrels and other friendly wildlife. You can enjoy their company, while also giving them a clean and safe place to congregate. Having an eco-friendly yard means your yard is friendly to all forms of nature.

Once you’ve created a space that’s green, then you can start adding your own personal touch. Add patio furniture, eco-friendly BBQ grills, or a hammock. Now you can share your yard with Mother Nature while including a few creature comforts of your own. Creating an eco-friendly backyard can be a fulfilling endeavor in so many ways. Not only are you creating a great place for you and your family to enjoy, but you are also doing your small part to help the environment for years to come.

Irrigation and How to Conserve Water

Irrigation and How to Conserve Water
By: Lou Manfredini

In today’s changing world, many of us are beginning to think more about how much water we use on a daily basis. I’m Lou Manfredini, Ace’s “Helpful Hardware Man” and here are some tips on how to conserve water in your lawn and garden.

The Lawn

I think the biggest mistake that most people make is overwatering. Overwatering not only wastes water, but it is bad for your plants. It really depends on where you live and the weather, but the general rule is to give anywhere from 1 to 2 inches of water a week to your lawn. You can measure the amount of water you give by the length of time that you run a sprinkler. Most sprinklers will give you that conversion information on their packaging, but you can also attach a water timer to your spigot that will turn it off when enough water has been given.

Another quick tip – Did you know that the best time to water is in the evening so that the water has a better chance to seep into the soil before the sun can burn it off.

The Garden

When it comes to the garden, a good soaking once or twice a week, depending on the type of flowers and plants you have, can usually sustain your flowerbeds and gardens. You can do this by hand or with a gentle sprinkler. You definitely don’t want to overwater your garden because doing so can breed disease and fungus among your plants. Just like with your lawn, you’ll want to water your garden in the evening to allow the water to seep in.

If give your lawn and garden the right amount of moisture you’ll be able to keep it looking green and healthy. Just think of how envious your neighbors will be!

Get Adobe Flash playerPlugin by wpburn.com wordpress themes