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:3/2/2015)... HUNTSVILLE, Ala. , March 2, 2015 /PRNewswire/ ... transaction processing. Data protection company Tharon Rankins Enterprises ... product that provides an ultra-safe way for businesses ... as their financial transactions. Beconux ... by Tharon Rankins Enterprises. Functioning similarly to an ...
(Date:2/25/2015)... Feb. 25, 2015  ABC Financial Services (ABC), ... the Health and Fitness Industry, today announced enhancements ... MYiCLUBonline.  The latest upgrade includes advances to the ... cardless check-in via Identity One fingerprint biometrics. The ... through interactive displays at the International Health, Racquet ...
(Date:2/24/2015)... NEW YORK , Feb. 24, 2015 This report ... Thousands by the following Segments: Face Biometrics, and Voice Biometrics. The ... , Japan , Europe ... & Africa , and Latin ... period 2013 through 2020. Also, a seven-year historic analysis is provided ...
Breaking Biology News(10 mins):Personal Data Protection Company Launches New Product 2ABC Financial Unveils New Software Enhancements 2ABC Financial Unveils New Software Enhancements 3World Face and Voice Biometrics Industry 2World Face and Voice Biometrics Industry 3World Face and Voice Biometrics Industry 4World Face and Voice Biometrics Industry 5World Face and Voice Biometrics Industry 6World Face and Voice Biometrics Industry 7World Face and Voice Biometrics Industry 8World Face and Voice Biometrics Industry 9World Face and Voice Biometrics Industry 10World Face and Voice Biometrics Industry 11World Face and Voice Biometrics Industry 12World Face and Voice Biometrics Industry 13World Face and Voice Biometrics Industry 14World Face and Voice Biometrics Industry 15World Face and Voice Biometrics Industry 16
... the October 2011 issue of Experimental Biology and ... Medical Center led by Stephen Tsang, MD, Ph.D have ... model for retinitis pigmentosa (RP) using novel bipartite gene ... by progressive degeneration of rod photoreceptors (which mediate night ...
... Advances in tissue engineering and stem cell therapies ... National Institutes of Health,s fourth Symposium on Cardiovascular Regenerative ... 30 leading researchers will share insights into the state ... sponsored by the NIH,s National Heart, Lung, and Blood ...
... Karolinska Institutet have discovered a new inherited disorder that ... adenosine kinase deficiency, is caused by mutations in the ... The findings, which are presented in the ... possible through the detailed biochemical examination of a Swedish ...
Cached Biology News:Cell-specific mechanism-based gene therapy approach to treat retinitis pigmentosa 2Cell-specific mechanism-based gene therapy approach to treat retinitis pigmentosa 3NIH hosts Cardiovascular Regenerative Medicine Symposium Oct. 4-5 2New inherited neurometabolic disorder discovered 2
(Date:3/27/2015)... York (PRWEB) March 27, 2015 Governor ... 2015 application period for 43North - the world’s largest ... including a grand prize of $1 million, six $500,000 ... from around the world to compete for prizes that ... enterprises in the Western New York region. , ...
(Date:3/26/2015)... 26, 2015 PRC Clinical, a Silicon-Valley ... several management and executive appointments effective immediately. , Mike ... (CFO) and member of the Board of Directors. Daniel ... and Sue Dowden will assume the position of Senior ... Chief Operations Officer (COO), has been appointed to the ...
(Date:3/26/2015)... The Market Element LLC, a leading inbound marketing ... Gig LLC to provide website design, development, and creative ... alliance with Designing Gig represents a pivotal moment for ... end-to-end, digital solution for our clients, which now includes ... president of The Market Element. “For small and mid-sized ...
(Date:3/26/2015)... and CINCINNATI , ... plc (LSE: SHP, NASDAQ: SHPG ) and ... three-year, broad research collaboration for rare diseases. The goal ... novel therapies to treat rare diseases with high ... capabilities with Cincinnati Children,s research expertise. As a ...
Breaking Biology Technology:Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 2Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 3Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 4Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 5PRC Clinical Announces Key Management Appointments and Launches East Coast Operations 2PRC Clinical Announces Key Management Appointments and Launches East Coast Operations 3The Market Element LLC and Designing Gig LLC Form Strategic Alliance 2Shire and Cincinnati Children's Establish Rare Disease Research Collaboration 2Shire and Cincinnati Children's Establish Rare Disease Research Collaboration 3Shire and Cincinnati Children's Establish Rare Disease Research Collaboration 4Shire and Cincinnati Children's Establish Rare Disease Research Collaboration 5
... - Just as the Milwaukee Brewers have ... team, Wisconsin is attempting to join the major leagues of ... building process reached another milestone with the news that Wisconsin ... investments, according to a new report compiled by NorthStar ...
... : This is the first in a four-part series ... in a lawsuit and, in particular, the discovery of electronically ... of the law firm Michael Best and Friedrich ... specific provisions in greater detail. , , Recently, ...
... is the second of a two-part interview with Marty Preizler, ... Part I , he provided an insurer's view of healthcare ... : We hear a lot about interoperability of information technology ... and facilities? Is that a challenge of similar dimension? , ...
Cached Biology Technology:Wisconsin building toward the major leagues of venture capital 2Wisconsin building toward the major leagues of venture capital 3Quick peeks, Clawback Agreements, and the rules of electronic discovery 2Quick peeks, Clawback Agreements, and the rules of electronic discovery 3Visions, Part II: Preizler sees IT leading incremental health system change 2Visions, Part II: Preizler sees IT leading incremental health system change 3Visions, Part II: Preizler sees IT leading incremental health system change 4Visions, Part II: Preizler sees IT leading incremental health system change 5