Location: National Soil Erosion Research Lab
2013 Annual Report
Effects of soil saturation and drainage on soil cohesion, aggregate stability and erodibility are quantified using the fluidized bed procedure and mini-flumes. Soil saturation treatments included the time under saturation, hence a measure of aging effect, and the cohesion developed was compared to the cohesion from soil drainage. Results showed that soil drainage has a much greater impact on the development of soil cohesion and rill erodibility than water ponding, or aging. A journal manuscript has been accepted.
To quantify soil hydrology at different land scape positions, an extensive number of soil samples have been collected at three large scale field sites at the Upper Cedar Creek Watershed to determine physical and hydraulic properties according to standard lab procedures. In addition, in situ soil moisture measurements were obtained over a 3-month period in all 3 fields at 2 depths (5 and 20cm) to determine the spatial variability of soil moisture and infiltration/drainage characteristics as affected by different management practices. All soil samples have been processed; all soil moisture data has been processed and verified with all physical, hydraulic and moisture data stored in a data base. The initial phase for estimating geospatial surface and subsurface characterization of soil physical and hydraulic properties based on observational data is in progress.
To evaluate hydraulic retention and chemical retention efficiency of potential blind inlet filter media, sorption isotherms were conducted using shreaded used tires, or tire chips, as a media to sorb atrazine and nitrate. These studies now include the sorption behaviors of phosphate and glyphosate.
At Purdue Davis Farm, control drainage plots were placed with and without flue gas desulfurization (FDG) gypsum applied. Soil samples were collected before treatments and analyzed for chemical and physical properties. Lysimeters were installed and water samples were collected on the 4th week of July for chemical analysis. Plant samples will be collected during flowering and at harvest and grain samples during harvest. Likewise, soil samples will be collected after harvest to compare to the changes before and after treatments.
Stott, D.E., Karlen, D.L., Cambardella, C.A., Harmel, R.D. 2013. A soil quality and metabolic activity assessment after fifty-seven years of agricultural management. Soil Science Society of America Journal. 77(3):903-913.
Erpul, G., Gabriels, D., Norton, L.D., Flanagan, D.C., Huang, C., Visser, S. 2013. Raindrop and flow interactions for interrill erosion with wind-driven rain. Journal of Hydraulic Research. DOI: 10.1080/00221686.2013.778339.
Ferreira, J.F., Zhelijazkov, V.D., Gonzalez, J.M. 2012. Artemisinin concentration and antioxidant capacity of Artemisia annua distillation byproduct. Industrial Crops and Products. 41:294-298.
Schmidt, M.A., Kreinberg, A.J., Gonzalez, J.M., Halvorson, J.J., French, E., Bollmann, A., Hagerman, A.E. 2013. Soil microbial communities respond differently to three chemically defined polyphenols. Plant Physiology and Biochemistry. 72:190-197. pii:S0981-9428(13)00088-0. DOI:10.1016/j.plaphy.2013.03.003.
Vermang, J., Norton, L.D., Baetens, J.M., Huang, C., Cornelis, W.M., Gabriels, D. 2013. Quantification of soil surface roughness evolution under simulated rainfall. Transactions of the ASABE. 56(2):501-514.
Galloza, M.S., Crawford, M.M., Heathman, G.C. 2013. Crop residue modeling and mapping using Landsat, ALI, hyperion and airborne remote sensing data. Institute of Electrical and Electronics Engineers. 6(2):446-456.
Schmidt, M.A., Gonzalez, J.M., Halvorson, J.J., Hagerman, A.E. 2013. Metal mobilization in soil by two structurally defined polyphenols. Chemosphere. 90:1870-1877.
Cassida, K.A., Foster, J.G., Gonzalez, J.M., Zobel, R.W., Sanderson, M.A. 2013. Response of forage chicory seedlings to available soil phosphorus in two soils in a controlled environment. Communications in Soil Science and Plant Analysis. 44:1992-2007.