Navigation Links
Nitrogen mysteries in urban grasslands
Date:10/13/2009

MADISON, WI, OCTOBER 12, 2009 Areas of turf-forming species created and maintained by humans for aesthetic and recreational (not grazing) purposes, i.e. "urban grasslands" are an extremely common, but poorly studied ecosystem type. There are over 150,000 km2of urban grasslands in the U.S. and many receive high rates of fertilizer, creating concerns about nutrient runoff to streams, lakes, and estuaries and emissions of greenhouse gases such as nitrous oxide (N2O) to the atmosphere. Most turfgrass research has been done on highly controlled research plots which can be very different than actual urban grasslands which have highly variable management regimes and physical, biological, and chemical conditions.

In the Baltimore Ecosystem Study (BES, http://beslter.org), one of two urban components of the U.S. National Science Foundation (NSF) Long Term Ecological Research (LTER) network, scientists from the Cary Institute of Ecosystem Studies (Peter Groffman), the U.S. Forest Service (Richard Pouyat, Ian Yesilonis) and the University of North Carolina (Lawrence Band) established a series of long-term study plots to evaluate multiple ecological variables in different components of the urban landscape. An NSF-funded Research Experience for Undergraduates student (Candiss Williams) used these plots for a summer research project. Forest plots were established in urban and rural parks for comparison with grass plots that vary in management intensity, ranging from unfertilized and infrequently mowed to high levels of fertilizer and herbicide input and frequent mowing. Plots were instrumented with lysimeters to measure nutrient leaching losses, soil chamber bases for measuring soil/atmosphere fluxes of N2O, and sensors for soil temperature and moisture. Results on nitrate (NO3-) leaching and N2O fluxes over a period of significant climatic variability (2001�) were presented in a paper in the SeptemberOctober 2009 issue of Journal of Environmental Quality
'/>"/>

Contact: Sara Uttech
suttech@agronomy.org
608-268-4948
American Society of Agronomy
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Planets nitrogen cycle overturned by tiny ammonia eater of the seas
2. Is nitrogen the new carbon?
3. Nitrogen fixation and phytoplankton blooms in the southwest Indian Ocean
4. Ozone, nitrogen change the way rising CO2 affects Earths water
5. Nitrogen research shows how some plants invade, take over others
6. UC Davis begins $2.8 million in studies of agricultural nitrogens impacts
7. Illinois Soil Nitrogen Test measures microbial nitrogen
8. Tree species composition influences nitrogen loss from forests
9. Researchers call for nitrogen and phosphorus reductions to combat eutrophication in aquatic systems
10. Cropland diversity reduces nitrogen pollution
11. Lichens function as indicators of nitrogen pollution in forests
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/12/2014)... Fla. , Nov. 12, 2014 Crossmatch™, ... today that its U.are.U ® fingerprint readers have ... chain in Central Mexico . The ... 2014 to eliminate payroll issues caused by employees clocking ... installing the U.are.U fingerprint readers, Montparnasse relied on paper ...
(Date:11/10/2014)... shelves in early 2010, and people have used them ... be tossed into a washing machine without ever having ... though, has come with risks for young children. , ... found that from 2012 through 2013, U.S. poison control ... years of age swallowing, inhaling, or otherwise being exposed ...
(Date:11/7/2014)... conjunction with the Glendale and ... the Verdugos has announced the " GLENDALE - ... to keep the Verdugo Regional Crime Lab operational after its ... existence, the Lab has processed more than 400 DNA samples, ... "Because our number one priority is the wellbeing of ...
Breaking Biology News(10 mins):Montparnasse Pasteleria Achieves Time and Attendance Transparency with Crossmatch U.are.U Fingerprint Readers 2Study finds laundry detergent pods, serious poisoning risk for children 2Community Foundation Of The Verdugos Unveils Campaign To Fund Glendale-Burbank DNA Justice Project 2
... Shapiro, a third-year graduate student at the Icahn School of ... annual Forbes "30 Under 30" list in "Science ... care landscape is transforming for the better, opening up to ... of Forbes . Ms. Shapiro, 25, a native ...
... human population increases, so too do the demands and ... International Journal of Plant Sciences , Penn State ... explores how the responses to environmental stresses by one ... to addressing growing human demand for crop products amid ...
... single-cell egg to a fully functional body: as embryos develop ... to the overall size of the embryo. The exact mechanism ... a team of researchers from EMBL Heidelberg is now one ... of the future vertebrae in a mouse embryo is controlled ...
Cached Biology News:Mount Sinai grad student, 25, named to Forbes '30 Under 30' in Science and Healthcare 2Can observations of a hardy weed help feed the world? 2Sync to grow 2
(Date:11/27/2014)... 2014 Calcivis, a medical ... tooth decay, today announces that it has completed ... Activity Imaging System. The Calcivis Caries ... and consumable combination designed to transform the assessment ... involves a unique, proprietary bioluminescence approach combined with ...
(Date:11/26/2014)... November 26, 2014 The North ... segments the market for detailed analysis of the ... market to reach $616.3 million by 2018, growing ... 2018. , Browse through the TOC of the ... get an idea of the in-depth analysis and ...
(Date:11/26/2014)... November 26, 2014 On January, 14, ... Baltimore and Washington D.C. science community to the UMBC ... event, sponsored by the Protein Society, will take place ... Center, Room 312. Through discussion, presentations and workshops, ... importance of proteins, their role in the industry and ...
(Date:11/26/2014)... (PRWEB) November 25, 2014 Silicon Valley ... forces with RPM Alliance , provider of clinical ... companies. With the latest addition to its CRO Partnership ... validated EDC system to India. , “We have ... robust and customizable EDC platform which is both user ...
Breaking Biology Technology:Calcivis Completes Clinical Study of Novel Caries Activity Imaging System 2Calcivis Completes Clinical Study of Novel Caries Activity Imaging System 3The North America Thermal Protective Clothing Market is estimated to grow up to $616.3 million by 2018 - Report by MicroMarket Monitor 2The North America Thermal Protective Clothing Market is estimated to grow up to $616.3 million by 2018 - Report by MicroMarket Monitor 3RPM Alliance Joins Clinovo’s CRO Partnership Program, Further Strengthening Its Presence in Southern California and India 2
... When Milwaukee-based coffee chain Stone Creek Coffee ... an emerging tool to enhance customer relationships: the blog. ... marketing director, the blog can bring Stone Creek Coffee ... mere press releases or other traditional forms of communications. ...
... ProHealth Care , a not-for-profit network of healthcare ... system from NetScaler, Inc. , for a new ... coordinate application usage and response time across its network ... 13 primary care clinics, home health care services. , ...
... that is has made $600,000 in new "Venture ... technology companies. In other news, a class-action lawsuit ... proceed under the state's antitrust laws, as a ... Also, congratulations to TDS Telecommunications. The company outperformed ...
Cached Biology Technology:Business blogs increase customer interactions 2Business blogs increase customer interactions 3Business blogs increase customer interactions 4Business blogs increase customer interactions 5