Navigation Links
New protocol recommendations for measuring soil organic carbon sequestration
Date:2/1/2013

son said. The comparison method assumes the conventional tillage baseline to be at a steady state and having the same amount of SOC at the beginning and at the end of the long-term study, and this may not be true. No-till as the experiment treatment needs to be compared to itself on the same soils over time to determine if SOC sequestration has really occurred.

Olson compared two decades of data from previously eroded Grantsburg soils on 6 percent slopes to a 30-inch depth with low SOC content in an attempt to quantify the amount and rates of SOC sequestration, storage, retention, or loss as a result of a conversion from conventional tillage to a no-till system. Olson used both the comparison and the pre-treatment SOC measurement methods on the same plot area. His analysis revealed conventional tillage and no-till plot areas had less carbon (C) at the end of the study than at the beginning using the pre-treatment SOC method. According to the comparison method, no-till sequestered 4.1 tons of C per acre for a 17 percent gain during the 20 years of the study. However, the pre-treatment SOC method showed that the no-till plots actually lost 3.1 tons of C per acre, a 13 percent loss in 20 years. Thus, no SOC sequestration had actually occurred during the Dixon Springs study.

There were three major reasons why the comparison study approach was the wrong method for measuring C sequestration on the Dixon Springs plot area. First, the conventional tillage plots were not at steady state and actually lost 30 percent of the C in 20 years due to erosion and SOC-rich sediment being transported off the plots. Second, when the no-till and conventional tillage plots were sampled only once, it was not possible to determine the rate of change over time. Last, the effect of tillage equipment breaking down the soil aggregates increased the carbon available to microbial decomposition and the release of C to the atmosphere as CO₂.

"Field experiments mus
'/>"/>

Contact: Debra Levey Larson
dlarson@illinois.edu
217-244-2880
University of Illinois College of Agricultural, Consumer and Environmental Sciences
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Lower dosage CT-guided lung biopsy protocol maintains quality, minimizes exposure
2. Radiologists study necessity of additional imaging recommendations in PET/CT oncologic reports
3. Measuring the exertion of mini-basketball players
4. Measuring dispersal -- how well are soft-sediment invertebrate communities connected on the seafloor?
5. Bringing measuring accuracy to radical treatment
6. Measuring mercury levels: Nano-velcro detects water-borne toxic metals
7. Measuring progesterone receptor expression to improve hormone-receptor-positive cancer management
8. Measuring our carbon footprint
9. Oceanographers develop method for measuring the pace of life in deep sediments
10. Organic study of live pancreatic tissue yields new opportunities for diabetes research
11. Chemistry resolves toxic concerns about carbon nanotubes
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New protocol recommendations for measuring soil organic carbon sequestration
(Date:7/11/2014)... the marginal division of the striatum is also ... impact degree of substance P in the striatal ... Yu and his team, College of Biophotonics, South ... that substance P receptor, neurokinin 1 was highly ... of normal rats. Unilateral or bilateral injection of ...
(Date:7/11/2014)... exists that cannabinoid receptor type 1 can ... influx, and reduce neurotransmitter release. However, some ... can increase extracellular Ca2+ influx and increase ... team, Tongji Hospital Affiliated to Tongji Medical ... China used whole cell voltage-clamp and calcium ...
(Date:7/11/2014)... that let nerve cells send out electrical signals, Johns ... tactic that may offer a new way to protect ... responsible way. , Their findingthat naturally occurring insect ... for a closely related onesuggests that insecticides can be ... like bees. A summary of the research, led by ...
Breaking Biology News(10 mins):Potent spider toxin 'electrocutes' German, not American, cockroaches 2Potent spider toxin 'electrocutes' German, not American, cockroaches 3
... and Low Power ... Consumption, ... an intelligent high-performance module designed for connecting,devices that require low power ... mobile OEM applications that need,WLAN connectivity with minimal power usage, such ...
... with things like trout and salmon would be good for the ... it would be natural to assume that more fish would mean ... journal of Ecology by the Ecological Society of America says that ... the area has not been good for the birds, demonstrating that ...
... human-caused climate change has made an impact on a ... plants blooming earlier across Europe, and lakes declining in ... Goddard Institute for Space Science in New York and ... biological impacts since 1970 with rises in temperatures during ...
Cached Biology News:New Silex SX-560 Enables Enterprise 802.11 Wireless Connectivity for Battery Operated Devices 2Restoring fish populations leads to tough choice for Great Lakes Gulls 2NASA study links Earth impacts to human-caused climate change 2
(Date:7/13/2014)... TX (PRWEB) July 13, 2014 2014 ... Industryā€¯ is a professional and in-depth study on the ... and China. , The report provides a basic overview ... structure. Global market analysis and Chinese domestic market analysis ... and competitive landscape of the market. A comparison between ...
(Date:7/12/2014)... York (PRWEB) July 12, 2014 ... for various reagents used in the life ... driving the life science reagents market towards ... include manufacturers and providers of life science ... Market Report: http://www.transparencymarketresearch.com/life-sciences-reagents-analytical-reagents.html . , The ...
(Date:7/11/2014)... 2014 /PRNewswire-iReach/ -- Maxim Peptide, a website that features ... solely in scientific experiments, is currently celebrating its second ... Maxim Peptide, which was created by the founders of ... updated website that now features a special deals section. ... with fascinating articles about peptide research, including a new ...
(Date:7/11/2014)... , Not for release, publication or distribution (in whole ... to do so would constitute a violation of the relevant ... the "Company") (LSE: SHP, NASDAQ: SHPG ) notes ... a meeting with representatives of AbbVie. This statement ... approval of AbbVie. A further update will be ...
Breaking Biology Technology:2014 Nano Silver Industry in Global and China Regions Development Proposals Analysis Available at DeepResearchReports.com 22014 Nano Silver Industry in Global and China Regions Development Proposals Analysis Available at DeepResearchReports.com 3Transparency Market Research: Life Science Reagents Market- PCR Reagent Kits, Cell and Tissue Culture, Flow Cytometry, Electrophoresis and Chromatography 2Transparency Market Research: Life Science Reagents Market- PCR Reagent Kits, Cell and Tissue Culture, Flow Cytometry, Electrophoresis and Chromatography 3Maxim Peptide Celebrates Second Anniversary Online with an Updated Website and Special Deals Section 2Shire plc - Statement re: Media Speculation 2
... interviewed two University of Wisconsin-Madison researchers about their work in ... game can be used in academics. The first interview is ... is a professor of Curriculum and Instruction in the School ... Video Games Have to Teach Us About Learning and Literacy. ...
... Column that first appeared on The Wisconsin Technology Network on July ... and discussion among many members of our audience. Here is another ... Byrnes position. John Byrnes can be reached at john@wistechnology.com ... ,Contrary to impressions gleaned from my editorial, I am not ...
... - Key to Reviving the Economy , ,* * * ... , ,We're back from last week's DEMOmobile 2003, and the experience ... key to reviving the overall economy. The energy from the 400-plus ... one thing became crystal clear: True connectivity -- both in our ...
Cached Biology Technology:The Learning Game - Researchers Study Video Gaming Principles that Apply to Education 2The Learning Game - Researchers Study Video Gaming Principles that Apply to Education 3The Learning Game - Researchers Study Video Gaming Principles that Apply to Education 4The Learning Game - Researchers Study Video Gaming Principles that Apply to Education 5The Learning Game - Researchers Study Video Gaming Principles that Apply to Education 6Lets Get Serious: Another Look 2Lets Get Serious: Another Look 3The News From DEMOmobile 2003 2The News From DEMOmobile 2003 3
... filters allow for the rapid isolation of DNA ... gel slice in the spin filter, centrifuge for ... is recovered. There is no need to melt ... filters can also be used for buffer exchange, ...
ChemiArray Human Cytokine Antibody Array VII, 60 cytokines per membrane...
Request Info...
...
Biology Products: