Navigation Links
Global nitrogen availability consistent for past 500 years, linked to carbon levels
Date:3/21/2013

MANHATTAN -- A Kansas State University research team has found that despite humans increasing nitrogen production through industrialization, nitrogen availability in many ecosystems has remained steady for the past 500 years. Their work appears in the journal Nature.

"People have been really interested in nitrogen in current times because it's a major pollutant," said Kendra McLauchlan, assistant professor of geography and director of the university's Paleoenvironmental Laboratory. "Humans are producing a lot more nitrogen than in the past for use as crop fertilizer, and there is concern because excess levels can cause damage. The mystery, though, is whether the biosphere is able to soak up this extra nitrogen and what that means for the future."

Nitrogen is a key component of the ecosystem and the largest regulator of plant growth. It determines how much food, fuel and fiber the land can produce. It also determines how much carbon dioxide plants remove from the atmosphere, and it interacts with several components of the climate system. Excessive amounts of nitrogen in ecosystems contribute to global warming and impairment of downstream ecosystems.

McLauchlan worked with Joseph Craine, research assistant professor in biology; Joseph Williams, postdoctoral research associate; and Elizabeth Jeffers, postdoctoral research associate at the University of Oxford. The team published their findings, "Changes in global nitrogen cycling during the Holocene epoch," in the current issue of Nature.

In the study the team also looked at how nitrogen availability changed thousands of years ago.

Roughly 15,000 years ago, the Earth began to warm, melting many glaciers and ice sheets that covered the landscape. Researchers found that Earth experienced an 8,000-year long decline in nitrogen availability as temperatures rose and carbon and nitrogen became locked up in soils. According to researchers, how the nitrogen cycle
'/>"/>

Contact: Kendra McLauchlan
mclauch@k-state.edu
785-532-6155
Kansas State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Novo Nordisk and BGI establish global collaboration framework
2. EU-funded study underlines importance of Congo Basin for global climate and biodiversity
3. Global warming threat to coral reefs: Can some species adapt?
4. 1 solution to global overfishing found
5. Young researcher taking fight against global killer to the next level in Vietnam
6. Heightened Security Threats and Economic Issues Provide Fillip to Global Civil and Military Biometrics Market, Says Frost & Sullivan
7. Global Information Inc. Announces Discounted Conference Registration For Bio-IT World Asia and Biodetection Technologies 2012
8. Global effort launched to save turtles from extinction
9. New Biotech and Pharmaceutical Market Research from Global Information Inc Forecasts Strong Growth Coming Out of Recession
10. 2012 Forecast for US Molecular Diagnostics Market Now Available From Global Information Inc.
11. Desert to Rainforest global classroom links future teachers, classrooms in Phoenix and Panama
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/25/2014)... girls reach puberty is influenced by ,imprinted genes,a subset of ... gene. This is the first evidence that imprinted genes ... of this study were published today in the journal ... menarche, is a marker for the timing of puberty in ... varies between girls, is an inherited trait, and is linked ...
(Date:7/25/2014)... of a molecular testing panel developed at UPMC ... initial surgery for patients with thyroid nodules and ... Cancer Institute (UPCI), partner with UPMC CancerCenter., The ... and other diagnostic testing agencies, improved the chances ... 30 percent, according to the study published this ...
(Date:7/25/2014)... CORAL SPRINGS, Florida , July 25, 2014 /PRNewswire/ ... influential as more consumers are turning to digital technology ... NXT-ID, Inc. (OTCBB: NXTD), Google Inc. (NASDAQ: ... Visa Inc. (NYSE: V ), Apple Inc. ... FTNT) NXT-ID, Inc., (OTCQB: NXTD) a biometric ...
Breaking Biology News(10 mins):Could age of first period influence development of diseases in older women? 2Test increases odds of correct surgery for thyroid cancer patients 2Test increases odds of correct surgery for thyroid cancer patients 3Consumer Needs for Identity Theft Security Grows with Popularity of Latest Smart Technology Products - Biometrically Secure Digital Wallet to Replace Credit Card Dependency 2Consumer Needs for Identity Theft Security Grows with Popularity of Latest Smart Technology Products - Biometrically Secure Digital Wallet to Replace Credit Card Dependency 3Consumer Needs for Identity Theft Security Grows with Popularity of Latest Smart Technology Products - Biometrically Secure Digital Wallet to Replace Credit Card Dependency 4Consumer Needs for Identity Theft Security Grows with Popularity of Latest Smart Technology Products - Biometrically Secure Digital Wallet to Replace Credit Card Dependency 5Consumer Needs for Identity Theft Security Grows with Popularity of Latest Smart Technology Products - Biometrically Secure Digital Wallet to Replace Credit Card Dependency 6
... Down syndrome (DS) is the most common genetic disorder ... a chromosomal abnormality. It occurs as a result of ... usual two. It causes substantial physical and behavioral abnormalities, ... to severe but which further deteriorates as individuals with ...
... Tropical Research Institute and University of Costa Rica asked ... webs. Repeating old, widely quoted but poorly documented studies ... legs are protected by a covering of branching hairs ... published online in the journal, Naturwissenschaften . , ...
... in size over time, they haven,t necessarily grown in ... according to a recently published study appearing in the ... scientists from the USDA Forest Service and the University ... of wildfires on four national forestsKlamath, Mendocino, Shasta-Trinity and ...
Cached Biology News:Understanding and treating the cognitive dysfunction of Down syndrome and Alzheimer's disease 2Study of wildfire trends in Northwestern California shows no increase in severity over time 2
(Date:7/24/2014)... 24, 2014  CorMedix Inc. (NYSE MKT: CRMD), ... therapeutic products for the prevention and treatment of ... notice on July 18, 2014 from the NYSE ... the CorMedix plan to regain compliance with continued ... the NYSE-MKT is continuing the Company,s listing and ...
(Date:7/24/2014)... July 24, 2014 2014 Deep ... Industry” is a professional and in-depth research report ... Potassium Sulphate basic information, including its definition, ... overview. This research covers the international market analysis, ... industry analysis covering macroeconomic environment & economic situation ...
(Date:7/24/2014)... , July 24, 2014 WIRB-Copernicus ... of regulatory and ethical review services for clinical ... Biosciences. Formerly a division of Richmond, ... the leading biosafety and biosecurity consulting firm in ... this addition, WCG,s biosafety division – WCG Biosafety™ ...
(Date:7/24/2014)... The first part of the session on “Best ... Studies” will cover comprehensive clinical support in early phase ... R&D costs and declining industry success in getting products ... collected in early Phase I/IIa study data to make ... development. , Next, the presenters will examine steps to ...
Breaking Biology Technology:CorMedix, Inc. Granted Extension of NYSE-MKT Listing 2CorMedix, Inc. Granted Extension of NYSE-MKT Listing 3Potassium Sulphate Market & SHMP Industry 2014 (Global, China) Analysis Now Available at DeepResearchReports.com 2Potassium Sulphate Market & SHMP Industry 2014 (Global, China) Analysis Now Available at DeepResearchReports.com 3Potassium Sulphate Market & SHMP Industry 2014 (Global, China) Analysis Now Available at DeepResearchReports.com 4WIRB-Copernicus Group Announces Acquisition of Alliance Biosciences; Executives Join WCG Biosafety Division 2WIRB-Copernicus Group Announces Acquisition of Alliance Biosciences; Executives Join WCG Biosafety Division 3Best Practices for Optimizing Dose Escalation in First in Human Studies, New Webinar August 6th Hosted by Xtalks 2
... SHANGHAI, Aug. 10 /PRNewswire-Asia-FirstCall/ ... ("China-Biotics," "the Company"), a leading Chinese firm,specializing ... of probiotics products, today announced that the ... has been,awarded the High-Technology Enterprise Certificate (the ...
... /PRNewswire-FirstCall/ - OncoGenex Pharmaceuticals, Inc. (NASDAQ: ... Patent and Trademark Office (PTO) has issued United ... Cancer by Antisense TRPM-2 Oligodeoxynucleotides," on the method ... to treat certain cancers. The patent, licensed from ...
... ... launched its revolutionary Trusted LASIK Surgeons directory service and website at ... improve their vision and find a highly qualified eye surgeon who can ... directory apart is a unique screening process ensuring that only those who ...
Cached Biology Technology:China-Biotics, Inc. Receives High-Technology Enterprise Certification to Qualify for Preferential Income Tax Rate 2China-Biotics, Inc. Receives High-Technology Enterprise Certification to Qualify for Preferential Income Tax Rate 3OncoGenex Pharmaceuticals Announces Issuance of Key Patent for OGX-011 2OncoGenex Pharmaceuticals Announces Issuance of Key Patent for OGX-011 3Trusted LASIK Surgeons Welcomes Fort Lauderdale Vision Correction Surgery Expert Raymond P. Gailitis, M.D., F.A.C.S. 2Trusted LASIK Surgeons Welcomes Fort Lauderdale Vision Correction Surgery Expert Raymond P. Gailitis, M.D., F.A.C.S. 3Trusted LASIK Surgeons Welcomes Fort Lauderdale Vision Correction Surgery Expert Raymond P. Gailitis, M.D., F.A.C.S. 4Trusted LASIK Surgeons Welcomes Fort Lauderdale Vision Correction Surgery Expert Raymond P. Gailitis, M.D., F.A.C.S. 5Trusted LASIK Surgeons Welcomes Fort Lauderdale Vision Correction Surgery Expert Raymond P. Gailitis, M.D., F.A.C.S. 6Trusted LASIK Surgeons Welcomes Fort Lauderdale Vision Correction Surgery Expert Raymond P. Gailitis, M.D., F.A.C.S. 7Trusted LASIK Surgeons Welcomes Fort Lauderdale Vision Correction Surgery Expert Raymond P. Gailitis, M.D., F.A.C.S. 8
4',6-Diamidino-2-phenylindole dihydrochloride...
...
Used in May-Grunwald Giemsa stain....
The 12-Tube Magnetic Separation Rack is designed to be used for small-scale separations using magnetic particles. ,Capacity: 12 microcentrifuge tubes. ,Magnets: Neodymium rare earth permanent ma...
Biology Products: