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:9/19/2014)... by researchers from several Harvard University labs in ... and aspiring researchers with the intellectual raw materials ... from soft, flexible materials. , With the advent ... advances in manufacturing technology, soft robotics is emerging ... from conventional rigid robot design, but working with ...
(Date:9/19/2014)... sense of fairness did not evolve for the sake ... the benefits of continued cooperation, so say Frans de ... review article about inequity aversion (IA), which is defined ... is published in Science . , Their ... IA-related studies to address their hypothesis that it is ...
(Date:9/19/2014)... shows that legume plants regulate their symbiotic relationship ... are transmitted through the plant structure from leaves ... bacteria-holding nodules in the roots. This collaborative study ... for Basic Biology, the Graduate University for Advanced ... Resource Science in Japan. , Legumes, an ...
Breaking Biology News(10 mins):Soft robotics 'toolkit' features everything a robot-maker needs 2Evolution of responses to (un)fairness 2Evolution of responses to (un)fairness 3For legume plants, a new route from shoot to root 2
... puzzled scientists, and several scenarios have been proposed to ... appeared virtually simultaneously on Asia, Europe and North America ... research using the latest evidence suggests a completely different ... sudden, rapid global warming drove the dispersal. , ...
... 18 HIV-positive subjects shows that HIV in the brain and ... in the blood and peripheral tissues. , Moreover, serious cognitive ... of a particular mutation in the HIV envelope gene. ... Brain. It was led by Satish K. Pillai, PhD, a ...
... eat together, and most people find it impossible to ... share just about everything, including their genes. But sometimes ... predicts both of them should. , Scientists at the ... understand how two people who are so similar biologically ...
Cached Biology News:Ancient global warming drove early primates' dispersal 2Viral genetic differences are possible key to HIV dementia 2Viral genetic differences are possible key to HIV dementia 3How can identical twins be genetically different? 2How can identical twins be genetically different? 3
(Date:9/18/2014)... , September 18, 2014 /PRNewswire/ ... Markets ( http://www.researchandmarkets.com/research/czvg3s/biocompatible ) has announced ... Materials - Global Strategic Business Report" ... (Logo: http://photos.prnewswire.com/prnh/20130307/600769) ,This report analyzes the ... US$ Million by the following Product ...
(Date:9/18/2014)... -- Research and Markets has announced the ... Industry Report, 2014-2017" report to their offering. ... can differentiate into specialized cells and can divide (through ... can be applied to treatment of cardiovascular diseases, leukemia ... damage or lesion of liver, kidney and other parenchymal ...
(Date:9/18/2014)... , Sept. 18, 2014 Research ... "Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, ... report to their offering. The global ... CAGR of 22.7% from 2014 to 2019. Factors such ... growing adoption of companion diagnostics by the pharmaceutical industry, ...
(Date:9/18/2014)... , Sept. 18, 2014  MEI Pharma, Inc. (Nasdaq: ... clinical development of novel therapies for cancer, announced today that ... Officer, will present at BioCentury,s NewsMakers in the Biotech ... a.m. Eastern time from the Millennium Broadway Hotel & Conference ... webcast of the presentation can be accessed at www.meipharma.com ...
Breaking Biology Technology:Biocompatible Materials - Global Strategic Business Report 2014 2Biocompatible Materials - Global Strategic Business Report 2014 3Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 3MEI Pharma To Present At BioCentury's NewsMakers Conference 2MEI Pharma To Present At BioCentury's NewsMakers Conference 3
... Dialysis Catheter With Patented Triple Arterial Lumen ... ... /PRNewswire-FirstCall/ - Angiotech Pharmaceuticals,Inc. (NASDAQ: ANPI , TSX: ANP) today ... catheter at the 2008,Society of Interventional Radiology (SIR) Annual Scientific Meeting ...
... 1:30 p.m. (Pacific Time); ... http://www.adventrx.com , SAN DIEGO, March 13 ... focused on in-licensing,developing and commercializing proprietary product candidates primarily ... financial,results for the fourth quarter and year ended December ...
... Brussels: THR), a biotechnology company focused on vascular,diseases, ... results for,the twelve month period ending 31 December ... to invest in its development,pipeline and has continued ... Highlights, - Successful placing of a total ...
Cached Biology Technology:Angiotech showcases its Hemostream(TM) Dialysis Catheter at the Society of Interventional Radiology (SIR) Annual Meeting 2Angiotech showcases its Hemostream(TM) Dialysis Catheter at the Society of Interventional Radiology (SIR) Annual Meeting 3Angiotech showcases its Hemostream(TM) Dialysis Catheter at the Society of Interventional Radiology (SIR) Annual Meeting 4Angiotech showcases its Hemostream(TM) Dialysis Catheter at the Society of Interventional Radiology (SIR) Annual Meeting 5ADVENTRX Pharmaceuticals, Inc. Reports Fourth Quarter and Full Year 2007 Financial Results 2ADVENTRX Pharmaceuticals, Inc. Reports Fourth Quarter and Full Year 2007 Financial Results 3ADVENTRX Pharmaceuticals, Inc. Reports Fourth Quarter and Full Year 2007 Financial Results 4ADVENTRX Pharmaceuticals, Inc. Reports Fourth Quarter and Full Year 2007 Financial Results 5ADVENTRX Pharmaceuticals, Inc. Reports Fourth Quarter and Full Year 2007 Financial Results 6ADVENTRX Pharmaceuticals, Inc. Reports Fourth Quarter and Full Year 2007 Financial Results 7ThromboGenics Announces 2007 Full Year Results 2ThromboGenics Announces 2007 Full Year Results 3ThromboGenics Announces 2007 Full Year Results 4
... Novagens PhageMaker System is optimized for maximum ... ligated with any bacteriophage l vector. Using a ... > 10^7 pfu/g arms (> 4 x 10^8 ... This one-tube system is extremely easy to use; ...
Gridded Cell Culture Petri Dish (20 mm molded in base), tissue-culture treated...
Chicken Anti-Human DNA-directed RNA Polymerase II 7.6 Kd Polypeptide (POLR2L Polyclonal AntibodyOther Sub-Family: not assigned-Other Applications: ELISA, Western Blot...
... cultured in RPMI 1640 with 2 mM L-glutamine ... In order to keep the antigens in ... The cells are arrayed on a 12-well ... surface specifically treated to enhance cellular attachment and ...
Biology Products: