Navigation Links
Impact of floods on soils
Date:4/22/2009

14-day ponding period, which is quite significant in terms of soil disaggregation. Changes in redox sensitive elements, alkaline metals, and dissolved organic carbon under reducing conditions contributed to the decrease in aggregate stability.

Overall, the aggregate stability of cultivated soils was more affected by the reducing conditions than that of uncultivated soils. This indicates that the management system plays an important role in the stability of aggregates.

The use of natural soils without addition of chemicals simulated a realistic field situation when aerobic upland soils remained saturated for several days and the oxygen level depleted to a minimum, causing reducing conditions. The authors believe that once the reducing reactions take place in the field and disaggregation has occurred, the process will not reverse itself because the natural drainage will carry away the released chemicals and the chemistry of the soil-water system will not return to the original state. The disintegrated aggregates may clog the soil pores and further degrade the soil structure.

However, reducing conditions only occur for short periods of time during the wet season in upland soils, whereas aggregation processes operate for several months causing re-aggregation of soil particles. The long-term irreversibility in soil disaggregation caused by the short-term reducing conditions remains an open question.


'/>"/>

Contact: Sara Uttech
suttech@soils.org
608-268-4948
Soil Science Society of America
Source:Eurekalert

Page: 1 2

Related biology news :

1. MIT: How you feel the world impacts how you see it
2. Impact of floods on soils
3. UBC study first to show evolutions impact on ecosystems
4. Study assesses impact of fish stocking on aquatic insects
5. Professor to measure environmental impact of war
6. GEN reports on Madoff scandals impact on the life sciences
7. Rising sea levels set to have major impacts around the world
8. How increased UV exposure impacts plants
9. Lower increases in global temps could lead to greater impacts than previously thought, study finds
10. Experiment of nature examines how mothers diet may impact on childs health
11. Darwins seminal impact on biology, anthropology, philosophy and psychology
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/20/2015)... , May 20, 2015 NXT-ID, Inc. (NASDAQ: ... its wholly owned subsidiary, 3D-ID LLC, a company engaged ... Battelle for the biometrics technology portion of the recently ... from the Department of the Army. 3D-ID ... developed for government, law enforcement and security agencies. ...
(Date:5/18/2015)... May 18, 2015 Fingerprint Cards (FPC) ... FPC1025, FPC1145, FPC1155 and FPC1035 from one if its module ... and including Q3 2015 and the sensors will be used ... order values for 2015 hereby amount to 740 MSEK to ... of 140 MSEK and a number of smaller orders not ...
(Date:5/11/2015)... , May 11, 2015  Through a well-rounded UAS ... had a strong showing at AUVSI,s Unmanned 2015 ... representatives of Ohio,s UAS industry met ... abroad from all points along the UAS ecosystem. ... Coalition,s (DDC) Vice President for Aerospace Rich Knoll . ...
Breaking Biology News(10 mins):NXT-ID, Inc Announces Participation as Member of Team Battelle for TIES Contract Award 2NXT-ID, Inc Announces Participation as Member of Team Battelle for TIES Contract Award 3Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 230 Million and Raises Revenue Guidance for 2015 2Ohio Flies High at Unmanned '15, Sets Stage for Ohio UAS Conference 2
... electronic system that stimulates the nerve of the diaphragm muscles ... for use in patients with Amyotrophic Lateral Sclerosis (ALS), also ... Diaphragm Pacing System (DPS) will help ALS patients breathe longer ... the surgeon at University Hospitals (UH) Case Medical Center who ...
... Most drug therapy interventions for people with autism have ... Now, University of Missouri researchers are examining the use ... pressure and control heart rate as well as to ... with autism difficulty with normal social skills, language ...
... available in German . , London. The global uptake ... cent more than previously thought. This is the conclusion of an ... atoms in the carbon dioxide of the atmosphere driven by the ... converted faster than expected during the El Nio years, current estimates ...
Cached Biology News:Diaphragm pacing system receives FDA approval for use with ALS patients 2Study finds promising drug treatment for improving language, social function in people with autism 2Productivity of land plants may be greater than previously thought 2Productivity of land plants may be greater than previously thought 3
(Date:5/21/2015)... , May 21, 2015  The EveryLife ... Hatch (R-UT) and Amy Klobuchar ... Now Accelerating Cures & Treatments, or OPEN ACT. ... disease patient advocacy organizations, this bipartisan legislation promises ... affordable medicines to rare disease patients by incentivizing ...
(Date:5/21/2015)... 21, 2015 Patent Offering, The patent’s ... diagnostic or therapeutic imaging within a body lumen (open ... endoscope having a low cost, single-use disposable illumination and ... was October 18, 2013 and the patent approval was ... the physician to customize the lighting and magnification of ...
(Date:5/21/2015)... , May 20, 2015 Research and Markets ... addition of the "2015 Global Survey on ... offering. The primary goal of this ... cytometry instruments and reagents. Key information the survey ... selection of flow cytometers, predominantly used applications for ...
(Date:5/21/2015)... Prussia, PA (PRWEB) May 21, 2015 ... O’Neill has joined the firm as senior statistician and ... 30 years of experience in the management and analysis ... biologics, pharmaceutical and chemical industries. , “We’re delighted to ... longstanding capabilities in data analytics,” said Dr. Philippe Cini, ...
Breaking Biology Technology:Advocates Cheer Senate Leaders for Introducing Bipartisan Bill to Increase Number of Rare Disease Treatments 2IpAuctions™ Presents The Worlds Smallest Disposable Illuminated Endoscope For Auction 2IpAuctions™ Presents The Worlds Smallest Disposable Illuminated Endoscope For Auction 3Global Survey on Flow Cytometry Adoption Trends 2015 2Julia O’Neill Joins Tunnell Consulting’s Operational and Process Improvement Practice 2
... Acquisition Expected to Add New Drug Products to Aida Pharmaceuticals, ... ... MONICA, Calif., March 27 Aida,Pharmaceuticals, Inc. (OTC Bulletin Board: ... to acquire a controlling interest,in one of the leading microbiology ...
... Pharmasset, Inc.,(Nasdaq: VRUS ), a pharmaceutical company ... treat viral infections, is,pleased to announce the appointment ... the,Board of Directors and the Nominating and Corporate ... the Board of Directors of Sapphire,Therapeutics, a Director ...
... Led by OrbiMed Advisors, World,s Largest Healthcare ... ... a,bio-pharmaceutical company developing Anticalins(R), a novel class of,targeted human protein therapeutics, ... by new investor OrbiMed Advisors LLC, a major global fund dedicated,to ...
Cached Biology Technology:Aida Pharmaceuticals, Inc. Acquires High-Level Research Institute in the People's Republic of China 2Aida Pharmaceuticals, Inc. Acquires High-Level Research Institute in the People's Republic of China 3Pharmasset Appoints Herbert J. Conrad as a Director 2Pharmasset Appoints Herbert J. Conrad as a Director 3Pieris Raises EUR 25 M (US$ 38 M) in Series B Financing Round 2Pieris Raises EUR 25 M (US$ 38 M) in Series B Financing Round 3Pieris Raises EUR 25 M (US$ 38 M) in Series B Financing Round 4
Mouse IL-31 RA Biotinylated Affinity Purified PAb...
Sf21 cells derived from Spodoptera frugiperda ovarian cells are recommended for high-level production of recombinant proteins. Higher expression levels of some proteins are seen due to the larger ce...
... universal lysis buffer, PCR mix, DNA polymerase ... l volume PCR reactions. This system can ... positive rod and coccus bacteria, such as ... Aureus, Streptococcus Agalactiae, and etc. With the ...
...
Biology Products: