Annual/Termination Reports:

[05/20/2010] [06/02/2011] [06/26/2012] [08/17/2013] [05/23/2014] [06/08/2016]

Report Information

Participants

Tefari Tsegaye, Maifan Silitonga, Ole Wendroth, Josh Heitman, Aziz Amoozegar, Tyson Ochsner, Jaehoon Lee, Kris Brye, Richard Zartman, Sally Logsdon, Navin Twarakavi, Sam Dennis and Francisco Arriaga.

Brief Summary of Minutes

9:05am Welcome and brief introduction by Sam Dennis. Introduction of Dr. Chandra Reddy, Dean of School of Agriculture and Consumer Science.

9:10am Official welcome to Tennessee State University by Dr. Chandra Reddy. Dr. Reddy spoke about the recent flood and how it affected the University. Continued with a brief explanation on the different programs offered at TSU and how they are trying to prioritize programs to reflect the current economic situation. They are hiring 12 new faculty members and building a new biotech building. They are open for collaboration and welcome all scientists to work with TSU faculty. Dr. Constantine Fenderson, Dept. Head (Dept. of Agricultural Sciences), walked in and was recognized by Dr. Reddy.

9:15am Self introductions.

9:25am Kris made a special mention; 1st year he attended was 2001 with Rick Zartman as host. He is glad to be associated with the group. Well recognized group (Tyson S1 Young Scientist Award and Cristine Morgan S6 Young Scientist Award). Several members of this group are Fellows of the Tri-societies.

9:30am Minutes approval from last meeting. Sam mentioned that he had lost his notes due to the flood, but luckily had read the notes a few days before the flood. Most of what was included in the notes he wrote from memory.

Sam moved to approve the minutes as presented. Rick 2nd the motion. Motion passed unanimously.

New officers: Francisco was elected as the secretary last meeting, and will be president next year. Tefari nominated Tyson for secretary (2011) and president (2012). Tyson accepted nomination. The nomination was approved unanimously.

Kris gave an update on the regional project, SDC-333. The unfunded project is in the last step of extramural review. Last year around the same time the project was under review. Jonathan Pote served as contact. Kris made revisions in June. Pote sent the project for another review then. Another set of revisions was available in December without the project having an official review. The Association of Agricultural Research Stations was very interested in this project, but they want some more details. Kris spoke with Bob Hubbard and Cristine to help with revisions.

Kris prepared the responses to the reviewers comments with revisions and submitted the project to Pote about a month ago.

One issue is the statistical analysis. It needs to be consistent. A statistician from the Univ. of Arkansas was involved in the review process (Pote invited him). The statistician is interested in helping before and after data collection. There is also the possibility to use data from other projects already conducted or in progress and include it in a database. This might be the 1st official approved regional project as far as we know. It appears it will soon be approved.

Other discussions regarding the AFRI proposal continued.

10:20am Bathroom break.

10:30am Presentations started, with Maifan Silitonga moderating.

Schedule of presentation on agenda provided by Sam Dennis.


12:30pm Lunch break

1:30pm A brief discussion on sampling methods and number of samples was conducted. Presentations continued.

The following changes were made to the presentation agenda:
Navin Twarakavi (Field Capacity and Soil Texture Classification: A Hydraulic Perspective) presented after Jaehoon Lee. Maifan Silitonga (Sustainable Agriculture and the Environment) presented after Navin. These two presentations were not listed on the agenda, but the opportunity was given to present. Josh Heitman and Aziz Amoozegar will give presentations tomorrow. Francisco Arriaga presented last, which included an invitation to the 2011 meeting to be held in Auburn, AL.

5:15pm Best presentation award decided by secret ballot. Ole Wendroth was the winner.

5:25pm Adjourned


May 21, 2010

8:45am Sam Dennis welcomed everyone and gave a brief background on his work.

8:50am Josh Heitman presented some of his research at NC State and Distance Education and Soil Physics Courses.

9:30am Dr. Fenderson, Dept. Head (Dept. of Agricultural Sciences), welcomed the group and wished the group a safe journey home. Sam was recognized for his hospitality by the group.

9:35am Aziz Amoozegar spoke on about his research on fate and transport of chemicals in the vadose zone-groundwater continuum.

10:05am Break

10:20am Kris Brye gave updates on the SDC-333 proposal. Discussion on the AFRI Climate Change proposal followed.

11:45am Sam Dennis provided some closing thoughts and comments. He also thanked everyone for attending.

11:50am Meeting officially ended. A group picture was taken outside; however some of the participants had already left to the airport.

Accomplishments

Publications

Impact Statements

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Report Information

Participants

Brye, Kristofor (kbrye@uark.edu)  University of Arkansas
Richard McMullen (graduate student)  University of Arkansas;
Dennis, Sam (sdennis@Tnstate.edu)  Tennessee State University;
Ochsner, Tyson (tyson.ochsner@okstate.edu)  Oklahoma State University;
Wendroth, Ole (owendroth@uky.edu)  University of Kentucky;
Arriaga, Francisco (francisco.arriaga@ars.usda.gov)  USDA-ARS, Auburn, AL;
Zartman, Richard (richard.zartman@ttu.edu)  Texas Tech University;
J.D. Booker (graduate student)  Texas Tech University;
Tsegaye, Teferi (teferi.tsegaye@aamu.edu)  Alabama A&M University;
Silitonga, Maifan (msilitonga@alcorn.edu)  Alcorn State University;
Bob Hubbard (Bob.Hubbard@ARS.USDA.GOV)  USDA-ARS, Tifton, GA;
Cristine Morgan (CMorgan@ag.tamu.edu)  Texas A&M University;
David Radcliffe (dradclif@uga.edu)  University of Georgia;
Wes Wood (woodcha@auburn.edu)  Auburn University;
Guangsheng Chen (chengu1@auburn.edu)  Auburn University;
Steve Workman (steve.workman@uky.edu)  University of Kentucky;

Brief Summary of Minutes

Minutes of the Southern Region Research Project S1048 Assessment of the Carbon Sequestration Potential of Common Agricultural Systems on Benchmark Soils Across the Southern Region Climate Gradient and the Southern Region Soil Physics Group
National Soil Dynamics Laboratory, USDA-ARS, Auburn, AL
May 19-20, 2011

Host and President: Dr. Francisco Arriaga, USDA-ARS
Project Administrator: Dr. Steve Workman, University of Kentucky

Attendees: Francisco Arriaga, J.D. Booker (graduate student, Texas Tech Univ.), Kris Brye, Guangsheng Chen, Sam Dennis, Bob Hubbard, Richard McMullen (graduate student, Univ. of Arkansas), Cristine Morgan, Tyson Ochsner, David Radcliffe, Maifan Silitonga, Teferi Tsegaye, Ole Wendroth, Wes Wood, Steve Workman, Rick Zartman

1. Meeting called to order at 8:15 a.m., May 19.

2. Welcoming Remarks
a. Francisco Arriaga, Host and President
b. Allen Torbert, Research Leader at NSDL
c. Joseph Touchton, Dep. Head, Agronomy and Soils, Auburn Univ.

3. Introduction of participants

4. Minutes from 2010 meeting modified to note David Nofziger as host in 2001.

5. Modified minutes approved (moved by Brye, second by Wendroth).

6. Discussed achievements of group members
a. Cristine Morgan newly elected S1 chair-elect and recently earned tenure

7. Silitonga and Radcliffe invited us to Southern Region Water Quality Conference, Athens, GA, Sept. 19-20, 2011

8. Brye led discussion on the S1048 research project proposal
a. Reviewer at national level wanted some deeper soil sampling
i. Michael Cox at Mississippi State will do deeper sampling
ii. Heitman and Brye will do deeper sampling
iii. Ochsner, Zartman, and Arriaga will do deeper sampling
iv. Strickland and Hubbard will do deeper sampling
b. Discussed overall objectives of the project and its relation to other ongoing work
c. Discussed sample analysis plan
i. Morgan can do SIC and VIS-NIR
ii. ARS lab in Ames can do LECO C/N for $5
iii. OSU can do LECO C/N for $10
d. Brye will proceed with the revised project plan to get approval
e. Sampling plan
i. 60 m transect, sampling at 15 m intervals
ii. 0-10, 10-20 cm basic depth increments
iii. Some investigators will do 20-40 cm and 40-60 cm increments

9. Elected Silitonga as Secretary for 2011-2012. Nominated by Brye, seconded by Zartman, unanimously approved.

10. Richard McMullen, grad student with Kris Brye, presented Preliminary broiler litter application rate effects on soil surface carbon dioxide flux from a Captina silt loam.

11. Bob Hubbard presented Effects of cover crops on soil physical properties and carbon/nitrogen relationships in coastal plains soils under conservation tillage.

12. Cristine Morgan presented Fingerprinting soils using VNIR spectroscopy for forensic applications.

13. Tyson Ochsner presented Performance of the cosmic-ray soil moisture observing system (COSMOS) at Marena, OK.

14. Morgan and Radcliffe led working lunch discussion of possible reorganization of the Soil Science Society of America.
a. Concerns of the group
i. In practice we are losing job opportunities to engineers
ii. We need to interact with engineers more in meetings
iii. We need NSF program staff to come to our meetings
iv. We need more NSF review panel members from SSSA
v. May be value to the ASA communities approach

15. David Radcliffe presented Nitrogen fate and transport in on-site wastewater systems.

16. Maifan Silitonga presented Subsurface transport of leaching of nutrients.

17. Teferi Tsegaye presented Assessment of drinking water quality for Madison County of Northern Alabama and Carbon, water vapor, and energy flux under a no-till farming using an eddy flux system.

18. Ole Wendroth presented Annual progress report from Kentucky: I. Irrigation treatment experiments and bromide leaching in variable soil landscapes. II. Scale dependence of NDVI-yield relationships.

19. JD Booker, grad student with Rick Zartman, presented Modeling pivot irrigated cotton at field-scale: Development of the PALMSCot model.

20. Voted for best presentation award

21. Next year approved $50 registration for PIs, $25 for students; meeting date will be no earlier than May 11 in Stillwater, OK
a. Discussed possible tours with preferences ranked 1) MOISST, 2) ARS watersheds, and 3) Mesonet headquarters
b. Once date is set president should notify administrator of the project to start NIMMS email notification to experiment stations
c. May be possible to get support from Southern Region Water Quality project
d. Send emails under S1048 not Southern Region soil physics

22. Meeting adjourned for the day at 4:25 p.m., May 19.

23. Meeting called to order at 8:05 a.m., May 20.

24. Discussed possibility of adding C modeling to the regional project.

25. Discussed need for questionnaire to give land owners to record land use history.

26. Discussed ideas for annual meeting improvement
a. Co-sponsor sessions at AGU meetings
b. Have a liason between SSSA and AGU as between S6 and SWCS
c. More outside invited speakers and NSF program officers at SSSA
d. Concern that if SSSA broke from ASA, then SSSA would die on the vine
e. Some support for communities type organization

27. SSSA should make more effort to establish soils programs in NSF

28. Best presentation award to Ochsner

29. Dr. Kip Balkcom, National Soil Dynamics Lab, presented Long-term research experiments  The Old Rotation and the Cullars Rotation.

30. Dr. Stephen Enloe, Dep. of Agronomy and Soils, Auburn University presented The Poisoning of Toomers Oaks.

31. Dr. Beth Guertal and Mr. Eric Kleypas, Auburn University, led the group on a tour of the turf management systems and operations for Jordan-Hare Stadium and the baseball stadium

32. Meeting adjourned at 11:00 a.m., May 20.

Minutes prepared by Tyson Ochsner, May 20, 2011.

Accomplishments

Revisions to the regional project proposal, approved at the regional level in 2010, but not yet at the national level, were discussed at the regional project meeting in May 2011 and implemented in a revised version of the regional-approved project proposal. As of June 2, 2011, the revised version of the regional-approved project proposal has been updated in NIMSS and the national contact person has been notified.

Publications

Impact Statements

1. None to report at this time as the revised project proposal has just been submitted (June 2, 2011) for consideration for approval at the national level.

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Report Information

Participants

PI attendees: Kris Brye (Univ. AK), Josh Heitman (NC State Univ.), Robert Horton (IA State Univ., visitor), , Jaehoon Lee (Univ. Tenn.), Sally Logsdon (USDA-ARS), Christine Morgan (TX A&M Univ.), Tyson Ochsner (OK State Univ.), Jason Warren (OK State Univ.), Wes Wood (Auburn Univ.)
Student attendees: Jason Ackerson (TAM), Jordan Beehler, Navneet Bilga, Geano Dong, Richard McMullen (UA), Michelle Melone, Jill Matschenbacher (UA), Haly Neely (TAM), Andres Patrignani (OSU), Bethany Scott, Sumit Sharma (UA), Tracy Wilson, Yohannes Yimam (OSU)

Brief Summary of Minutes

The meeting was called to order with welcoming remarks by Tyson Ochsner, and Dr. David Porter (Interim Associate Dean, College of Agric. Sci. Natural Resour., OK State Univ.). Dr. Workman was not able to attend but suggested we develop a web site and start a listserve for our group. He encouraged joint publications. Sally Logsdon gave a brief summary of the southern soil physics group. Their data on soil hydraulic properties are among the best in the Unsoda data base, because the data are from the field and undisturbed lab samples.
Then we started our business meeting. Maifan Silitonga was supposed to be the secretary this year, but she did not answer e-mails. Apparently she has taken a new job in Kentucky. Sally Logsdon volunteered to be the fill-in secretary. Now a president and host would need to be selected for next year. Christine Morgan sent e-mails to Glenn Wilson, Rich Zartmann, and Ole Wendroth to see if they would be interested. Ole Wendroth was most interested, so he will be the president and host next year. The secretary next year will be ?(Glenn Wilson or Josh Heitman)? We would still aim for the beginning of the third week of May.
We decided e-mail was adequate and we did not need a listserve at this time. There is a sample web page from the past. Go to http://soilphysics.akstate.edu, select southern region. It was developed by Dr. H. Scott. Today electronic reports are more useful than hard copies. There is also an administrative website under NIMSS. Perhaps a student with GIS background could get things on the website, but the future secretaries will collate material to put on the website. We have a large number of students this year, and we would like to encourage student participation. We were reminded there would be student best presentation award, and we would take a group picture after lunch.
The S1048 project obtained final approval July 2011. Kris Brye explained that a few decades ago, funding was easy for regional projects. In the 2000's, several early career members decided to push for a new project. Kris may have temporary funding for lab analysis. We discussed what to add to the data base. Suggestions were lat. / long., age of ecosystem or tillage, series or map unit number and county to link to SURGO, distinguish reverted bs abandoned land, get NRCS ecological site assessment list, plant species. We would like to invite other disciplines to attend our regional meeting. The SERA 17 P meeting meets at the annual meeting; such an idea might increase attendance. Jason Warren volunteered to pursue a C symposium from our group for 2013 annual meetings, and Josh Heitman agreed to help. A possible invitee would be David Robinson from UK.
Tyson had us divide into three groups to discuss outcomes for each sub-objective i) evaluate management effects on SOC, ii) understand processes of C transformations, iii) spatial variability. For sub-objective i, we would summary any related work in our career, to get the database started, along with data collected fall 2011. For sub objective ii, we would summarize carbon dioxide flux in relation to temperature, water, and conservation practices. For sub-objective iii, we would summarize data at both regional and field scales.
First we had presentations most closely linked with the project. Dr. JasonWarren and Sumit Sharma discussed "Research supporting the Oklahoma carbon program." Dr. Wes Wood discussed what his group had worked on, including sampling overseas. Jill Motschenbacher presented "Rice rotation and tillage effects on water-stable soil macroaggregates and their associated carbon contents. Richard McMullen presented "Broiler litter effect on long-term seasonal leaching from a Captina silt loam." Dr. Kris Brye discussed "Soil C and N dynamics in a wheat-soybean double-cropped system in the Mississippi River Delta Region of eastern Arkansas." Dr. Jaehoon Lee presented "Soil organic carbon changes for swithcgrass farms in east Tennessee."
Then we had more general soil physics presentations. Dr. Josh Heitman discussed "Evapotranspiration at wine-grad vineyards in the Negev and North Carolina." Dr. Sally Logsdon presented some results from the fall sampling and a brief listing of other research. Dr. Robert Horton discussed "Research updates on heat, water, and chemical transfer in soil." He also gave encouraging words to students to follow their ideas. Haly Neely presented "Bulk electrical conductivity as a means to map shrink-swell potential of soils." Jason Ackerson presented "Measurement of soil water dynamics in a Texas Vertisol using electrical resistivity tomograpy." Dr. Christine Morgan discussed "Current issues in the Soil Science Society of America. Yohannes Yimam presented "Canopy interception and soil moisture depletion by switchgrass and forage sorghum." Andres Patrignani presented "A new framework to quantigy soil water stress effects on biomass production." The next day Jason Ackerson was awarded the best student presentation certificate.
On the field trip, Dr. Chris Zou from Natural Resources Ecology and Management at Oklahoma State University showed us the "Cross timbers ecohydrology research site." Dr. Jeff Basara. director of research for Oklahoma Climatological Survey showed us "The Oklahoma Mesonet: Marena Station". Dr. Tyson Ochsner showed us "The Marena, Oklahoma in-siute sensor testbed (MOIST). We also got to observe installation of fiber optic soil water sensing cable.

Accomplishments

Publications

Impact Statements

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Report Information

Participants

Kristofor R. Brye, Arkansas;

Amanda M. Liesch, North Carolina;

April Newman, Louisiana;

Maria Lucia Silveira, Florida;

Jason Warren, Oklahoma;

Wes Wood, Alabama;

Richard Zartman, Texas;

Steve Workman, Kentucky;

Yohannes T. Yimam, Oklahoma;

Xinhua Xiao, North Carolina;

Andreas Schwen, Kentucky;

Yang Yang, Kentucky;

Sleem Kreba, Kentucky;

Jason Walton, Kentucky;

Ole Wendroth, Kentucky;

Brief Summary of Minutes

Thursday May 23, 2013
Introductions
Welcome note from Dr. Nancy Cox about the agricultural systems in Kentucky.
Welcome from Dr. Todd Pfeiffer, Department chair of Plant and Soil Sciences
Ole Wendroth talked about the SSSA new mission and vision statement
Dr. Josh Heitman, North Carolina State University, will be hosting the meeting next year
Mandy Liesch will be the meeting secretary
Kristofer R. Brye gave an overview of rice production with Arkansas and a review on the associated methane productions. Presentation was called Textural Effects on Methane Emissions from Direct-Seeded Delayed Rice Production (PhD student Chris W. Rodgers work). Silt loams begin methane emissions quicker and have higher overall season long emissions. Methane emissions are greater from soils with rice compared to those with bare soils.
Organizational comments/break
Yahannes Yimam gave a review of the soil physics group at Oklahoma State. Presentation was titled Two way interactions between bioenergy cropping systems and water resources. He is working with the water use efficiency of biofuel plants and their associated water balance. Springtime precipitation is very important to yield and water use efficiency. A drought can reduce WUE and total yield.
Jason Warren talked about the variability in soil carbon stock measurements. This program is to help give farmers carbon credits and monitoring. Fixed mass method allows comparable results with other field results. He also said that bulk density may not be necessary in sampling, and the required number of samples with a detailed power analysis that may not be possible. A lot of discussion ensued about sampling and sampling procedures.
Mandy Liesch presented on the development of an infiltration index for land use decisions in Urbanizing regions. Saturated hydraulic conductivity in the subsurface was the most important driving factor to hydrology in the region.
Xinhua Xiao presented on Soil carbon dioxide fluxes with time and depth. Soil CO2 depths increased with soil depth and fluxes decreased with depth. Leaf area index, soil water, plant roots, and soil temperature were the main factors impacting CO2 concentration and fluxes.
April Newman presented on the effect of sugarcane management in Louisiana. In general, the treatment with no burning had more carbon in the soil than the burned treatment.
Sleem Kreba talked about the differences in CO2 flux in space and time. CO2 flux was higher in a grass system compared to a crop. Variability of CO2 flux was more pronounced in time than in space.
Ole Wendroth talked about State Space analysis in soil physics. Why not implement spatial relationships in pedotranfer functions? State space models are efficient for detecting and describing spatial processes providing more useful information. It becomes more powerful with cross spectral analysis.
Yang Yang talked about the space state approach to describe bromide leaching at a field scale. Soil Br at all depths has spatial correlation with depths.
Discussion of the future of the Southern Regional Soil Physics/Carbon reform. What do we want to do to facilitate data centers.
Kris Brye won the best presentation.
On Friday, the group visited the Climate Change Research site of Dr. Rebecca McCulley and the Land Use Impact Study Site of the Soil Physics program.

Accomplishments

Long-term tillage and residue management plots were established in 2003 at the Yucheng Comprehensive Experiment Station in the North China Plain by the USDA Sedimentation lab. The effects of different tillage-residue managements for a winter wheat and summer maize double-crop system on soil organic carbon (SOC) and total nitrogen (N) pools were determined. No-tillage with residue cover (NTR), no-tillage with residue removed and manure applied (NTRRM), and conventional tillage with residue removed (CTRR) were investigated for 6 years, based on a uniform N application among treatments. NTR and NTRRM sequestered more SOC in the surface (0-5cm) than CTR but for the whole soil profile (0-60 cm), NTRRM, NTR and CTRR sequestered SOC at the rates of 0.66, 0.27 and 2.24 Mg ha-1 yr-1. These long-term plots were warmed using infrared heaters to address the effects of global warming on carbon sequestration and crop growth. Warming increased the wheat aboveground biomass from 10%-20% suggesting the potential to sequester more CO2. Despite the lower SOC pool at the surface under CT, CO2 emissions were significantly (P<0.05) greater (by 11.7% on average) than under NT. Under the simulated global warming environment, responses of soil CO2 emissions decreased with time in CT while it consistently increased in NT system during the three wheat seasons and two maize seasons.<br /> <br /> Oklahoma State University has collected and pre-processed a large archive of soil samples from the stations of the Oklahoma Mesonet, a world class environmental monitoring network spanning the state of Oklahoma.

Publications

Hou, Ruixing, Zhu Ouyang, Yunsheng Li, D.D. Tyler, Fadong Li, G.V. Wilson. 2012. Effects of tillage and residue management on soil organic carbon in the North China plain. Soil Sci. Soc. Am. J., 76:230-240, doi:10.2136/sssaj2011.0107.<br /> <br /> Hou, Ruixing, Zhu Ouyang, Yusheng Li, and G.V. Wilson. 2012. Is the change of winter wheat yield under warming caused by shortened reproductive period? Ecology and Evolution, 2(12):2999-3008. DOI:10.1002/ece3.403.<br /> <br /> Hubbard, R.K., T.C. Strickland, and S. Phatak. 2013. Effects of cover crop systems on soil physical properties and carbon/nitrogen relationships in the coastal plain of southeastern USA. Soil & Tillage Research 126:276-283.<br /> <br /> Knoll, J.E., W.F. Anderson, R. Malik, R.K. Hubbard, and T.C. Strickland. 2013. Production of Napiergrass as a Bioenergy Feedstock Under Organic Versus Inorganic Fertilization in the Southeast USA. Bioenerg. Res. DOI 10.1007/s12155-013-9328-1<br /> <br /> Krueger, E.S., T.E. Ochsner, J.M. Baker, P.M. Porter, and D.C. Reicosky. 2012. Ryecorn silage double-cropping reduces corn yield but improves environmental impacts. Agron. J. 104:888-896.<br /> <br /> Strickland, T.C., T.L. Potter, C.C. Truman, D.H. Franklin, D.D. Bosch, G.L. Hawkins. 2012. Results of rainfall simulation to estimate sediment-bound carbon and nitrogen loss from an Atlantic Coastal Plain (USA) ultisol. Soil & Tillage Research, 122:12-21<br />

Impact Statements

1. Differences in soil properties (soil temperature and soil moisture) between the CT and NT systems would be enlarged by warming, and the potential exist for warming to promote more soil CO2 emission with time under NT relative to CT due to the greater SOC pool in the surface of NT. There is a need to consider the differences in response to global warming between these two tillage systems in order to properly assess the benefits of NT to carbon sequestration.

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Report Information

Participants

Aziz Amoozegar, North Carolina State University;
Kristofor Brye, University of Arkansas;
Dedrick Davis, Alabama A&M University;
Josh Heitman, North Carolina State University;
Thorsten Knappenberger, Washington State University (Auburn);
Alan Meijer, North Carolina State University;
Haly Neely, Texas A&M University;
Tyson Ochsner, Oklahoma State University;
Maria Lucia Silveira, University of Florida;
Ryan Stewart, Virgina Tech University;
Jason Warren, Oklahoma State University;
Ole Wendroth, University of Kentucky;
Xinhua Xiao, North Carolina State University;
Yang Yang, University of Kentucky;
NCSU Graduate Students: Adam Howard, John Lewis, Amanda Liesch, Fatemeh Shirazi;

Brief Summary of Minutes

Raleigh, North Carolina, May 21, 2014

Meeting began at 8:30 a.m.

Welcome by David Monks and Michael Wagger, NCSU

Introduction of participants by Josh Heitman, NCSU


Discussion of chairperson and host for 2015 meeting
1. Suggestion of Cristine Morgan as potential host for 2015

Research presentations

1. Thorsten Kanppenberger, Washington State University, Filtration of stormwater contaminants in bioretention cells

2. Yang Yang, University of Kentucky, Temporal dynamics and stability of spatially measured soil water status in crop and grass systems

3. Haly Neely, Texas A&M University, Measuring and modeling crack volume in the field

4. Ryan Stewart, Virginia Tech University, Soil-water interactions in shrink-swell clays: new relationships for shrinkage, porosity, and infiltration

5. Dedrick Davis, Alabama A&M University, Soil physics research at Alabama A&M University

a. Coupled heat and water transfer in biochar amended soils

b. Winter canola effects on soil quality

6. Maria Silveira, University of Florida, Long-term impacts of management intensification on soil carbon dynamics in subtropical grasslands

7. Alan Meijer, North Carolina State University, Carbon stratification in Piedmont long-term tillage study

8. Jason Warren, Oklahoma State University, On-farm soil carbon sequestration assessment

9. Kris Brye, University of Arkansas, S-1048 update and proposed future activity

Discussion of future S1048 activity

1. Kris Brye will lead effort to write and submit a joint manuscript on soil carbon respiration

2. Discussed ideas for next multi-state project after S1048 ends in June 2016

Demonstration of sediment control research

Adjourn for the day 5:30

May 22, 2014

Began meeting at 8:50 a.m.

Meeting host and location for 2015

1. Cristine Morgan is not able to host

2. Glenn Wilson will host the meeting at Oxford, MS in 2015

Research presentations

1. Ole Wendroth, University of Kentucky, State-space analysis in soil physics

2. Tyson Ochsner, Oklahoma State University, Research update

3. Xinhua Xiao, North Carolina State University, Heat pulse measurements of evaporation and liquid water flux

4. Aziz Amoozegar, North Carolina State University, On-site septic systems research and extension in North Carolina

5. Josh Heitman, North Carolina State University, Research update and research experience for undergraduates

Closing comments by Keith Cassel

By vote of those in attendance Ole Wendroth was selected to receive the Best Presentation award

Adjourn 12:00 p.m.

Minutes prepared by Tyson Ochsner

Accomplishments

Publications

Impact Statements

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Report Information

Participants

Taylor Adams, Univ. of Arkansas
Rebecca Anderson, Univ. of Arkansas
Robson Armindo, Univ. of Kentucky
Kris Brye, Univ. of Arkansas
Jason Burgess-Conforti, Univ. of Arkansas
Johan Desrochers, Univ. of Arkansas
Gary Feng, USDA-ARS
Fernando Gimenos, Univ. of Kentucky
Yuguo Han, Beijing Forestry Univ., China
George Hopper, Miss. State Univ.
Matt Moran, USDA-FS
Tyson Ochsner, Oklahoma State Univ.
Ying Ouyang, USDA-FS
Chao Qin, Northwest A&F Univ., China
Javier Reyes, Univ. of Kentucky
Oiuxiang Tang, Xinjiang Agric. Univ., China
Ole Wendroth, Univ. of Kentucky
Glenn Wilson, USDA-ARS
Michelle Wynter, US Army Corp of Eng.
Ximeng Xu, Northwest A&F Univ., China
Xi Zhang, Univ. of Kentucky
Benhiang Zhao, South China Agric. Univ., China

Brief Summary of Minutes

Meeting held at USDA National Sedimentation Laboratory, Oxford MS 2-3 June, 2016

 

Meeting began at 8:30 a.m with welcome by Dr. Martin Locke, NSL Lab Director, Followed by introduction of participants and review of history of this southern regional project by Glenn Wilson.

 

Research Presentations:

1. Martin Locke “Tillage and cover crop effects on C dynamics in MS Delta” Martin Locke “Tillage and cover crop effects on C dynamics in MS Delta”


2. JR Rigby “Toward national and regional assessment of carbon exchange on agricultural lands through the USDA-ARS Long-term Agroecosystem Research Network”


3. Ying Ouyang “A STELLA Model to Predict Total Organic Carbon Load in Watersheds”


4. Jason Burgess-Conforti “Land-application Effects of a High-calcium Dry Flue Gas Desulfurization By-product on Plant Uptake of Trace Elements and Runoff Quality”


5. Tyson Ochsner “Development of open educational resources for soil physics”


6. Ximeng Xu “Active stage gully morphological characteristics in the Loess Hilly-gully Region based on 3D laser scanning technique”


7. Javier Reyes “Exploring spatio-temporal soil and crop processes to improve irrigation management”


8. Xi Zhang “The behavior of soil hydraulic properties cross soil profile”


9. Robson Armindo “Spatial variability of soil permeability for water and fuels in a Cambisol of southern Brazil”


10. George Hopper “Options for next regional project”


11. Gary Feng “Carbon Sequestration and Greenhouse Gas Emission on a Leeper Silty Clay Loam Soil in a Manured Maize Production System in a Humid Region”


12. Qiuxiang Tang “Crop water requirement, rainfall deficit and irrigation demand of major three crops in Mississippi Delta”


13. Taylor Adams “Soil Property Differences among High-yield Soybean Areas in Arkansas”


14. Chao Qin “A laboratory study on rill network development and morphological Characteristics”


15. Michelle Wynter “Passive Reactive Berm (PRBerm) to provide low maintenance lead containment at active small arms firing ranges”


16. Glenn Wilson “Soil Pipe Flow and Internal Erosion: Prelude to the field tour”


17. Benliang Zhao “Influence of soil vibration on methane emission associated with rice growth trait and microbial activity in rhizosphere”

Next day a business meeting was held. Following the Business meeting attendees participated in a tour of the NSL laboratory facilities and field site with extensive soil pipe collapse features and erosion by preferential flow through the subsurface was explored.

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