Projects

MANAGING AGRICULTURAL WATER QUALITY IN FIELDS AND WATERSHEDS: NEW PRACTICES AND TECHNOLOGIES Appropriated (D)   Accession Number: 422830

IMPLEMENTATION OF SUSTAINABLE BIOENERGY PRODUCTION SYSTEMS Nonfunded Cooperative Agreement (N)   Accession Number: 420995

MONITORING EDGE-OF-FIELD SURFACE-WATER RUNOFF: A THREE-STATE PILOT PROJECT TO PROMOTE AND EVALUATE AN INEXPENSIVE AND RELIABLE GAUGE Reimbursable (R)   Accession Number: 424056

DEVELOPMENT OF A GIS-BASED RUSLE2 INTERFACE TEMPLATE FOR USE WITH IOWA'S LIDAR DIGITAL ELEVATION DATA Specific Cooperative Agreement (S)   Accession Number: 414432

RIGHT PRACTICE, RIGHT PLACE: DEVELOPMENT AND DEPLOYMENT OF A CONSERVATION PLANNING TOOLKIT AND IMPROVED INCENTIVE STRATEGIES… Trust (T)   Accession Number: 422375

Publications (Clicking on the reprint icon will take you to the publication reprint.)

Convergence of agricultural intensification and climate change in the midwestern United States: Implications for soil and water conservation - (Review Article) - (07-Jan-13)

Native prairie filter strips reduce runoff from hillslopes under annual row-crop systems, Iowa USA - (Peer Reviewed Journal) - (05-Nov-12)

Downstream approaches to phosphorus management in agricultural landscapes: Regional applicability and use - (Peer Reviewed Journal)

Kroger, R., Dunne, E.J., Novak, J., King, K.W., Mclellan, E., Smith, D.R., Strock, J., Boomer, K., Tomer, M., Noe, G.B. 2013. Downstream approaches to phosphorus management in agricultural landscapes: Regional applicability and use. Science of the Total Environment. 442:263-274.

Runoff and sediment reduction from integration of native prairie filter strips into row-crop agriculture - (Abstract Only)

Helmers, M.J., Tomer, M.D., Asbjornsen, H. 2012. Runoff and sediment reduction from integration of native prairie filter strips into row-crop agriculture [abstract]. Midwest Fish and Wildlife Conference. CD-ROM.

Estimating nitrate load reductions from placing constructed wetlands in a HUC-12 watershed using LiDAR data - (Peer Reviewed Journal) - (07-May-12)

Tools to improve the placement of conservation practices in watersheds - (Abstract Only)

Tomer, M.D., Veith, T.L., Baffaut, C., Mccarty, G.W. 2012. Tools to improve the placement of conservation practices in watersheds [abstract]. Soil and Water Conservation Society Conference Abstract Book. p. 16-17.

Runoff and phosphorus loads from two Iowa fields with and without applied manure, 2000-2011 - (Abstract Only)

Tomer, M.D., Moorman, T.B., Cole, K.J., Hatfield, J.L. 2012. Runoff and phosphorus loads from two Iowa fields with and without applied manure, 2000-2011 [abstract]. Soil and Water Conservation Society Conference Abstract Book. p. 22.

Siting multiple conservation practices in a tile-drained watershed using LiDAR topographic data - (Book / Chapter) - (20-Apr-12)

Evaluating hydrology of the soil and water assessment tool (SWAT) with new tile drain equations - (Peer Reviewed Journal)

Moriasi, D.N., Rossi, C.G., Arnold, J.G., Tomer, M.D. 2012. Evaluating hydrology of the soil and water assessment tool (SWAT) with new tile drain equations. Journal of Soil and Water Conservation. 67(6):513-524.

Sediment removal by perennial filter strips in row-cropped ephemeral watersheds - (Peer Reviewed Journal) - (30-Mar-12)

Remote sensing estimation of evapotranspiration for SWAT Model Calibration - (Abstract Only)

Sadeghi, A.M., Beeson, P.C., Daughtry, C.S., Akhmedov, B., Alfieri, J.G., Anderson, M.C., Hain, C., Tomer, M.D., Prueger, J.H., Kustas, W.P., Hatfield, J.L. 2012. Remote sensing estimation of evapotranspiration for SWAT Model Calibration [abstract]. ASABE Conference. Paper No. 12-13687.

Walnut Creek and Squaw Creek Watersheds, Iowa: National Institute of Food and Agriculture-Conservation Effects Assessment Project - (Book / Chapter)

Osmond, D., Gassman, P.W., Schilling, K., Kling, C.L., Helmers, M.J., Isenhart, T., Simpkins, W., Moorman, T.B., Tomer, M.D., Rabotyagov, S., Jha, M., Hoag, D., Meals, D., Arabi, M. 2012. Walnut Creek and Squaw Creek Watersheds, Iowa: National Institute of Food and Agriculture-Conservation Effects Assessment Project. In: Osmond, D.L., Meals, D.W., Hoag, D.L.K., Arabi, M., editors. How to Build Better Agricultural Conservation Programs to Protect Water Quality. Ankeny, IA: Soil and Water Conservation Society. p. 201-220.

A legacy of past soil erosion - (Other)

Tomer, M.D. 2012. A legacy of past soil erosion. In: McDonough, D., editor. Getting into Soil and Water: Iowa Water Center. Ames, IA. p. 26-27.

Runoff and phosphorus loads from two row-cropped fields with and without applied manure, 2000-2011 - (Abstract Only)

Tomer, M.D., Moorman, T.B., Cole, K.J., Hatfield, J.L. 2011. Runoff and phosphorus loads from two row-cropped fields with and without applied manure, 2000-2011. American Society of Agronomy Annual Meetings [abstracts]. ASA-CSSA-SSSA Annual Meeting. Oct. 16-19, 2011, San Antonio, TX. CD-ROM.

Agricultural intensification, hydrologic alteration, and increasing precipitation in the US Midwest: Implications for hydrology and water quality - (Abstract Only)

Tomer, M.D., Cruse, R.M. 2011. Agricultural intensification, hydrologic alteration, and increasing precipitation in the US Midwest: Implications for hydrology and water quality. International Conference on Diffuse Pollution. CD-ROM.

Factors impacting nitrate-N removal by wetlands placed using LiDAR topographic data - (Abstract Only)

Tomer, M.D., Crumpton, W.G., Bingner, R.L., Kostel, J.A., James, D.E. 2011. Factors impacting nitrate-N removal by wetlands placed using LiDAR topographic data. International Conference on Diffuse Pollution. Rotorua, New Zealand. CD-ROM.

A soil quality assessment within the Iowa River South Fork Watershed - (Peer Reviewed Journal)

Stott, D.E., Cambardella, C.A., Wolf, R., Tomer, M.D., Karlen, D.L. 2011. A soil quality assessment within the Iowa River South Fork Watershed. Soil Science Society of America Journal. 75:2271-2282.

Value of using remotely sensed evapotranspiration for SWAT model calibration - (Abstract Only)

Beeson, P.C., Akhmedou, B., Sadeghi, A.M., Daughtry, C.S., Alfieri, J.G., Tomer, M.D. 2011. Value of using remotely sensed evapotranspiration for SWAT model calibration [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. 2011 CDROM.

The effect of DEM resolution on slope estimation and sediment predictions - (Abstract Only)

Sadeghi, A.M., Beeson, P.C., Lang, M.W., Tomer, M.D. 2011. The effect of DEM resolution on slope estimation and sediment predictions [abstract]. 2011 International SWAT Conference. 2011 CDROM.

Effect of shifting crop production for biofuel demand on soil and water quality - (Abstract Only)

Beeson, P.C., Sadeghi, A.M., Daughtry, C.S., Tomer, M.D., Arnold, J.G. 2011. Effect of shifting crop production for biofuel demand on soil and water quality [abstract]. Abs. 4, BARC Poster Day.

Hydrologic evaluation using two SWAT shallow water table depth algorithms in the south fork watershed - (Abstract Only)

Moriasi, D.N., Rossi, C.G., Arnold, J.G., Tomer, M.D. 2011. Hydrologic evaluation using two SWAT shallow water table depth algorithms in the south fork watershed [abstract]. In: Bodoque, J.M., Smith, C., Srinivasan, R. (eds.).Annual International SWAT Conference, June 15-17, 2011, Toledo, Spain. p. 30.

The challenge of documenting water quality benefits of conservation practices: A review of USDA-ARS's Conservation Effects Assessment Project watershed studies - (Review Article)

Tomer, M.D., Locke, M.A. 2011. The challenge of documenting water quality benefits of conservation practices: A review of USDA-ARS's Conservation Effects Assessment Project watershed studies. Water Science and Technology. 64(1):300-310.

Treatments of Precipitation Inputs to Hydrologic Models - (Peer Reviewed Journal)

Beeson, P.C., Doraiswamy, P.C., Sadeghi, A.M., Di Luzio, M., Tomer, M.D., Arnold, J.G., Daughtry, C.S. 2011. Treatments of Precipitation Inputs to Hydrologic Models: Guages and NEXRAD. Transactions of the ASABE. 54(6):2011-2020.

Swine manure injection with a low-disturbance applicator and cover crops reduce phosphorus losses in runoff - (Peer Reviewed Journal)

Kovar, J.L., Moorman, T.B., Singer, J.W., Cambardella, C.A., Tomer, M.D. 2011. Swine manure injection with a low-disturbance applicator and cover crops reduce phosphorus losses in runoff. Journal of Environmental Quality. 40:329-336.

Groundwater nutrient concentrations during prairie reconstruction on an Iowa landscape - (Peer Reviewed Journal)

Tomer, M.D., Schilling, K.E., Cambardella, C.A., Jacobson, P., Drobney, P. 2010. Groundwater nutrient concentrations during prairie reconstruction on an Iowa landscape. Agriculture, Ecosystems and Environment. 139:206-213.

Perennial filter strips reduce nitrate levels in soil and shallow groundwater after grassland-to-cropland conversion - (Peer Reviewed Journal)

Zhou, X., Helmers, M.J., Asbjornsen, H., Kolka, R., Tomer, M.D. 2010. Perennial filter strips reduce nitrate levels in soil and shallow groundwater after grassland-to-cropland conversion. Journal of Environmental Quality. 39:2006-2015.

Effects of Prairie Reconstruction on Soil-Water and Groundwater Nutrient Concentrations, Neal Smith National Wildlife Refuge - (Abstract Only)

Schilling, K.E., Jacobson, P., Tomer, M.D., Wepking, N., Cambardella, C.A., Drobney, P. 2010. Effects of Prairie Reconstruction on Soil-Water and Groundwater Nutrient Concentrations, Neal Smith National Wildlife Refuge. North American Prairie Conf., Aug. 1-5, 10, Cedar Falls, IA. Available: http://www.napc2010.org/cs_schedule.html.

Extending the Concept of Precision Conservation to Restoration of Rivers and Streams - (Proceedings)

Tomer, M.D., James, D.E., Bean, J.R., Simon, A., Klimetz Ii, P.D., Gelder, B., Yan, B. 2010. Extending the Concept of Precision Conservation to Restoration of Rivers and Streams. In: International Conference on Precision Agriculture Abstracts & Proceedings, July 18-21, 2010, Denver, CO. 2010 CD-ROM.

Water Quality Impacts of Shifting towards a Corn Dominated Agricultural Watershed - (Abstract Only)

Beeson, P.C., Doraiswamy, P.C., Sadeghi, A.M., Di Luzio, M., Tomer, M.D. 2010. Water quality impacts of shifting towards a corn dominated agricultural watershed [abstract]. Abs. 3, BARC Poster Day.

How do we identify opportunities to apply new knowledge and improve conservation effectiveness? - (Other)

Tomer, M.D. 2010. How Do We Identify Opportunities to Apply New Knowledge and Improve Conservation Effectiveness? Journal of Soil and Water Conservation. 65(4):261-265.

Water Quality Impacts of Shifting towards a Corn Dominated Agricultural Watershed - (Abstract Only)

Beeson, P.C., Doraiswamy, P.C., Sadeghi, A.M., Di Luzio, M., Tomer, M.D. 2010. Water quality impacts of shifting towards a corn dominated agricultural watershed [abstract]. Soil and Water Conservation Society 65th Annual Conference. 2010 CDROM.

Watershed-Scale Soil Quality Assessment: Assessing Reasons for Poor Canopy Development in Corn - (Proceedings)

Stott, D.E., Cambardella, C.A., Tomer, M.D., Karlen, D.L. 2010. Watershed-Scale Soil Quality Assessment: Assessing Reasons for Poor Canopy Development in Corn [abstract]. In: Proceedings of the World Congress of Soil Science, August 1-6, 2010, Brisbane, Australia. CD ROM.

Source-pathway separation of multiple contaminants during a rainfall-runoff event in an artificially drained agricultural watershed - (Peer Reviewed Journal)

Tomer, M.D., Wilson, C.G., Moorman, T.B., Cole, K.J., Herr, D., Isenhart, T.M. 2010. Source-pathway separation of multiple contaminants during a rainfall-runoff event in an artificially drained agricultural watershed. Journal of Environmental Quality. 39:882-895.

Hydrograph Separations can Identify Contaminant-Specific Pathways for Conservation Targeting in a Tile-Drained Watershed - (Abstract Only)

Tomer, M.D., Moorman, T.B., Wilson, C.G., Cole, K.J., Isenhart, T.M. 2009. Hydrograph Separations can Identify Contaminant-Specific Pathways for Conservation Targeting in a Tile-Drained Watershed [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts. Nov. 1-5, 2009, Pittsburgh, PA.

Survival of Escherichia coli and Enterococcus in Stream Water - (Abstract Only)

Moorman, T.B., Tomer, M.D. 2009. Survival of Escherichia coli and Enterococcus in Stream Water [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts. Nov. 1-5, 2009, Pittsburgh, PA.

Coupling Cover Crops with Alternative Swine Manure Application Strategies: Manure-15N Tracer Studies - (Abstract Only)

Cambardella, C.A., Moorman, T.B., Singer, J.W., Tomer, M.D., Kovar, J.L., Kerr, B.J. 2009. Coupling Cover Crops with Alternative Swine Manure Application Strategies: Manure-15N Tracer Studies [abstract]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, Nov. 1-5, 2009, Pittsburgh, PA. Paper No. 555-77.

Phosphorus in Soil and Runoff Following Swine Manure Injection with a Low-Disturbance Applicator - (Abstract Only)

Kovar, J.L., Moorman, T.B., Cambardella, C.A., Singer, J.W., Tomer, M.D. 2009. Phosphorus in Soil and Runoff Following Swine Manure Injection with a Low-Disturbance Applicator [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, Nov. 1-5, 2009, Pittsburgh, PA. Paper No. 270-7.

Discerning Climate and Land-use Change Impacts on Watershed Hydrology: Implications for Gulf Hypoxia - (Abstract Only)

Tomer, M.D., Schilling, K. 2009. Discerning Climate and Land-use Change Impacts on Watershed Hydrology: Implications for Gulf Hypoxia [abstract]. Soil & Water Conservation Society (SWCS) Science 2 Solutions Conference. p. 51.

Hydrograph Separations can Identify Contaminant-Specific Pathways for Conservation Targeting in a Tile-Drained Watershed - (Abstract Only)

Tomer, M.D., Moorman, T.B., Wilson, C., Cole, K.J., Isenhart, T. 2009. Hydrograph Separations can Identify Contaminant-Specific Pathways for Conservation Targeting in a Tile-Drained Watershed [abstract]. Soil & Water Conservation Society (SWCS) Science 2 Solutions Conference. p. 58.

Discussing Wetlands, Agriculture, and Ecosystem Services: Perspectives from Two Countries - (Other)

Tomer, M.D., Tanner, C.C., Howard-Williams, C. 2009. Discussing Wetlands, Agriculture, and Ecosystem Services: Perspectives from Two Countries. National Wetlands Newsletter. 31(6):21-24.

Quality Assessment of Corn Fields with Areas of Poor Canopy Development - (Abstract Only)

Stott, D.E., Cambardella, C.A., Tomer, M.D., Karlen, D.L. 2009. Quality Assessment of Corn Fields with Areas of Poor Canopy Development. ASA-CSSA-SSSA Annual Meeting Abstracts. CD ROM.

A Simple Approach to Distinguish Land-use and Climate-change Effects on Watershed Hydrology - (Peer Reviewed Journal)

Tomer, M.D., Schilling, K.E. 2009. A Simple Approach to Distinguish Land-use and Climate-change Effects on Watershed Hydrology. Journal of Hydrology. 376(1-2):24-33.

Historical Channel Movement and Sediment Accretion Along the South Fork of the Iowa River - (Peer Reviewed Journal)

Yan, B., Tomer, M.D., James, D.E. 2010. Historical Channel Movement and Sediment Accretion Along the South Fork of the Iowa River. Journal of Soil and Water Conservation. 65(1):1-8.

Floodplain Sediment Accretion and Stream-course Straightening Along the South Fork of the Iowa River - (Abstract Only)

Tomer, M.D., Yan, B., James, D.E., Cole, K.J. 2009. Floodplain Sediment Accretion and Stream-course Straightening Along the South Fork of the Iowa River [abstract]. In: Dust Bowl to Mud Bowl: Sedimentation, Conservation Measures and the Future of Reservoirs. p. 49.

Is No-Tillage Enough? A Field-Scale Watershed Assessment of Conservation Effects - (Peer Reviewed Journal)

Karlen, D.L., Dinnes, D.L., Tomer, M.D., Meek, D.W., Cambardella, C.A., Moorman, T.B. 2009. Is No-Tillage Enough? A Field-Scale Watershed Assessment of Conservation Effects. Journal of Integrative Biosciences. 7(2):1-24.

Floodplain Sediment Accretion and Stream-course Straightening Along the South Fork of the Iowa River - (Abstract Only)

Tomer, M.D., Yan, B., James, D.E., Cole, K.J. 2009. Floodplain Sediment Accretion and Stream-course Straightening Along the South Fork of the Iowa River. Soil and Water Conservation Society Proceedings. Available: http://www.swcs.org

Soil Processes and Residue Harvest Management - (Book / Chapter)

Johnson, J.M., Papiernik, S.K., Mikha, M.M., Spokas, K.A., Tomer, M.D., Weyers, S.L. 2009. Soil Processes and Residue Harvest Management. In: Lal, R., Stewart, B.A., editors. Soil Quality and Biofuel Production. Advances in Soil Science. Boca Raton, FL: CRC Press. p. 1-44.

Can an ecohydrologic analysis distinguish land-use and climate-change effects on watershed hydrology? - (Abstract Only)

Tomer, M.D., Schilling, K. 2008. Can an Ecohydrologic Analysis Distinguish Land-use and Climate-change Effects on Watershed Hydrology?. [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, October 5-8, 2008, Houston, TX.

Can an ecohydrologic analysis distinguish land-use and climate-change effects on watershed hydrology? - (Abstract Only)

Tomer, M.D., Schilling, K. 2008. Can an Ecohydrologic Analysis Distinguish Land-use and Climate-change Effects on Watershed Hydrology? [abstract]. p. 37.

A targeted conservation approach for improving environmental quality: Multiple benefits and expanded opportunities - (Experiment Station)

Schulte, L.A., Asbjornsen, H., Atwell, R., Hart, C., Helmers, M., Isenhart, T., Kolka, R., Liebman, M., O'Neal, J., Secchi, S., Schultz, R., Thompson, J., Tomer, M.D., Tyndall, J. 2008. A Targeted Conservation Approach for Improving Environmental Quality: Multiple Benefits and Expanded Opportunities. Agricultural Experiment Station Publication. Iowa State University Extension Publication. Ames, IA. PMR-1002. p. 24.

Quantifying Relative Contributions from Sediment Sources in Conservation Effects Assessment Project Watersheds - (Peer Reviewed Journal)

Wilson, C.G., Kuhnle, R.A., Bosch, D.D., Steiner, J.L., Starks, P.J., Tomer, M.D., Wilson, G.V. 2008. Quantifying Relative Contributions from Sediment Sources in Conservation Effects Assessment Project Watersheds. Journal of Soil and Water Conservation. 63(6):523-532.

Targeting of Watershed Management Practices for Water Quality Protection - (Other)

Wortmann, C.S., Helmers, M., Gelder, B., Wright-Morton, L., Devlin, D., Barden, C., Anderson, S., Broz, R., Franti, T., Regassa, T., Shea, P., Tomer, M.D., Frees, L., Griffith, D., Frizzell, D. 2008. Targeting of Watershed Management Practices for Water Quality Protection. Extension Publications. Heartland Regional Water Coordination Initiative, Lincoln, NE. p.3-23.

METHODS TO PRIORITIZE PLACEMENT OF RIPARIAN BUFFERS FOR IMPROVED WATER QUALITY - (Peer Reviewed Journal)

Tomer, M.D., Dosskey, M.G., Burkart, M.R., James, D.E., Helmers, M.J., Eisenhauer, D.E. 2008. Methods to prioritize placement of riparian buffers for improved water quality. Agroforestry Systems. Available: http://www.springerlink.com/content/p316k5622l171003.

A Preliminary Watershed Scale Soil Quality Assessment in North Central Iowa USA - (Peer Reviewed Journal)

Karlen, D.L., Tomer, M.D., Neppel, J., Cambardella, C.A. 2008. A Preliminary Watershed Scale Soil Quality Assessment in North Central Iowa USA. Soil & Tillage Research. 99:291-299.

Assessment of the Iowa River's South Fork Watershed: Part 2. Conservation Practices - (Peer Reviewed Journal)

Tomer, M.D., Moorman, T.B., James, D.E., Hadish, G., Rossi, C.G. 2008. Assessment of the Iowa River's South Fork Watershed: Part 2. Conservation Practices. Journal of Soil and Water Conservation. 63(6):371-379.

Assessment of the Iowa River's South Fork Watershed: Part 1. Water Quality - (Peer Reviewed Journal)

Tomer, M.D., Moorman, T.B., Rossi, C.G. 2008. Assessment of the Iowa River's South Fork Watershed: Part 1. Water Quality. Journal of Soil and Water Conservation. 63(6):360-370.

E. coli and Enterococcus in a Large Agricultural Watershed: Temporal, Hydrologic and Animal Production - (Abstract Only)

Moorman, T.B., Tomer, M.D., James, D.E. 2007. E. coli and enterococcus in a large agricultural watershed: temporal, hydrologic and animal production [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, Nov. 4-8, 2007, New Orleans, LA.

Patterns of sediment and phosphorus accumulation in a riparian buffer - (Abstract Only)

Tomer, M.D., Moorman, T.B., Kovar, J.L., James, D.E., Burkart, M.R 2007. Patterns of sediment and phosphorus accumulation in a riparian buffer [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, November 4-8, 2007, New Orleans, LA.

Water Quality and Conservation Practices in the South Fork of the Iowa River - (Abstract Only)

Moorman, T.B., Tomer, M.D., James, D.E., Hadish, G., Rossi, C.G. 2008. Water Quality and Conservation Practices in the South Fork of the Iowa River. USDA-CSREES National Water Quality Conference. Available: http://www.soil.ncsu.edu/swetc/waterconf/2008/home08.htm

ECOHYDROLOGICAL IMPLICATIONS OF REMOVING ENCROACHING WOODY VEGETATION FROM A MIDWESTERN BUR OAK SAVANNA - (Research Notes)

Asbjornsen, H., Brudvig, L.A., Tomer, M.D. 2007. Ecohydrological implications of removing encroaching woody vegetation from a Midwestern bur oak savanna. Ecological Restoration. 25(1):60-64.

Water Quality and Conservation Practices in the South Fork of the Iowa River - (Abstract Only)

Tomer, M.D., James, D.E., Green, C.H., Hadish, G., Moorman, T.B. 2007. Water Quality and Conservation Practices in the South Fork of the Iowa River [abstract]. Soil and Water Conservation Society Proceedings. p. 40.

Groundwater nitrate following installation of a vegetated riparian buffer - (Peer Reviewed Journal)

Yamada, T., Logsdon, S.D., Tomer, M.D., Burkart, M.R. 2007. Groundwater nitrate following installation of a vegetated riparian buffer. Science of the Total Environment. 385(1-3):297-309.

Spectral Procedures Enhance the Analysis of Three Agricultural Time Series - (Abstract Only)

Meek, D.W., Prueger, J.H., Tomer, M.D., Malone, R.W. 2007. Spectral Procedures Enhance the Analysis of Three Agricultural Time Series [abstract]. In: Applied Statistics In Agriculture Conference Proceedings, April 30-May 1, 2007, Manhattan, KS. p. 17.

HYDROGEOLOGIC CONTROLS ON NITRATE TRANSPORT IN A SMALL AGRICULTURAL CATCHMENT, IOWA - (Peer Reviewed Journal)

Schilling, K.E., Tomer, M.D., Zhang, Y.K., Weisbrod, T., Jacobsen, P., Cambardella, C.A. 2007. Hydrogeologic controls on nitrate transport in a small agricultural catchment, Iowa. Journal of Geophysical Research-Biogeosciences. 112, G03007. Available: http://www.agu.org/journals/jg/jg0703/2007JG000405/.

A Tale of Three Watersheds: Non-point Source Pollution and Conservation Practices Across Iowa - (Other)

Schilling, K.E., Tomer, M.D., Gassman, P., Isenhart, T.M., Moorman, T.B., Simpkins, W., Wolter, C.F. 2007. A Tale of Three Watersheds: Non-point Source Pollution and Conservation Practices Across Iowa. Choices. 22(2):87-95.

Agriculture and Water Quality in the Corn Belt: Overview of Issues and Approaches - (Other)

Helmers, M.J., Isenhart, T.M., Kling, C.L., Moorman, T.B., Simpkins, W.W., Tomer, M.D. 2007. Agriculture and Water Quality in the Corn Belt: Overview of Issues and Approaches. Choices. 22(2):79-85.

TREE AND STAND TRANSPIRATION IN A MIDWESTERN BUR OAK SAVANNA AFTER ELM ENCROACHMENT AND RESTORATION THINNING - (Peer Reviewed Journal)

Asbjornsen, H., Tomer, M.D., Gomez-Cardenas, M., Brudvig, L.A., Greenan, C.M., Schilling, K. 2007. Tree and stand transpiration in a Midwestern bur oak savanna after elm encroachment and restoration thinning. Forest Ecology and Management. 247:209-219.

Spatial Patterns of Sediment and Phosphorus in a Riparian Buffer, Western Iowa - (Peer Reviewed Journal)

Tomer, M.D., Moorman, T.B., Kovar, J.L., James, D.E., Burkart, M. 2007. Spatial Patterns of Sediment and Phosphorus in a Riparian Buffer, Western Iowa. Journal of Soil and Water Conservation. 62(5):329-338.

Implications of a Conservation Practices Inventory for Water Quality in an Iowa Watershed - (Abstract Only)

Tomer, M.D., Hadish, G., James, D.E., Cole, K.L. 2006. Implications of a Conservation Practices Inventory for Water Quality in an Iowa Watershed [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Nov. 12-16, 2006, Indianapolis, IN. 2006 CDROM.

Conservation Practices and Water Quality in the Iowa River's South Fork Watershed - (Abstract Only)

Tomer, M.D., James, D.E., Green, C.H., Moorman, T.B. 2006. Conservation Practices and Water Quality in the Iowa River's South Fork Watershed [abstract]. Soil and Water Conservation Society. p.39.

ESCHERICHIA COLI AND ENTEROCOCCUS IN THE SOUTH FORK OF THE IOWA RIVER WATERSHED - (Abstract Only)

Moorman, T.B., Tomer, M.D., James, D.E. 2006. Escherichia coli and enterococcus in the south fork of the Iowa river watershed [abstract]. Soil and Water Conservation Society. p. 87.

The science of targeting within landscapes and watersheds to improve conservation effectiveness - (Book / Chapter)

Walter, T., Dosskey, M., Khanna, M., Miller, J., Tomer, M.D., Wiens, J. 2007. The science of targeting within landscapes and watersheds to improve conservation effectiveness. In: Schnepf, M., Cox, C., editors. Managing Landscaping for Environmental Quality: Strengthening the Science Base. Soil and Water Conservation Society, Ankeny, IA. p. 63-89.

ASSESSING SOIL QUALITY AT A WATERSHED SCALE IN NORTH CENTRAL IOWA, USA - (Proceedings)

Karlen, D.L., Tomer, M.D., Neppel, J., Cambardella, C.A. 2006. Assessing soil quality at a watershed scale in North Central Iowa, USA. 17th International Soil Tillage Research Organization (ISTRO) Proceedings. p.1255-1267.

Baseline profile of the Tipton Creek Watershed, Iowa - (Other)

Osei, E., Saleh, A., Gallego, O., Tomer, M.D., Tanter, A., Green, C.H. 2006. Baseline profile of the Tipton Creek Watershed, Iowa. TIAER (Texas Institute for Applied Environmental Research, Tarleton State University. TR0618. 43 p.

COMPOST EFFECT ON WATER RETENTION AND NATIVE PLANT ESTABLISHMENT ON A CONSTRUCTION EMBANKMENT - (Peer Reviewed Journal)

Singer, J.W., Malone, R.W., Tomer, M.D., Meade, T.G., Welch, J. 2006. Compost effect on water retention and native plant establishment on a construction embankment. Journal of Soil and Water Conservation. 61(5):268-273.

WATER QUALITY AND CONSERVATION PRACTICES IN THE IOWA RIVER'S SOUTH FORK WATERSHED - (Proceedings)

Tomer, M.D., Moorman, T.B., James, D.E., Green, C.H., Burkart, M.R. 2007. Water quality and conservation practices in the Iowa River's South Fork Watershed. Proceedings of USDA-CSREES National Water Quality Conference. p.17.

HYDROLOGIC EVALUATION OF THE SOIL AND WATER ASSESSMENT TOOL FOR A LARGE TILE-DRAINED WATERSHED IN IOWA - (Peer Reviewed Journal)

Green, C.H., Tomer, M.D., Diluzio, M., Arnold, J.G. 2006. Hydrologic evaluation of the Soil and Water Assessment Tool for a large tile-drained watershed in Iowa. Transactions of the ASABE. 49(2):413-422.

VARIATION IN SURFACE-SOIL PROPERTIES AND WATER CONTENTS ACROSS TWO WATERSHEDS WITH CONTRASTING TILLAGE HISTORIES - (Proceedings)

Tomer, M.D., Cambardella, C.A., James, D.E., Moorman, T.B. 2005. Variation in surface-soil properties and water contents across two watersheds with contrasting tillage histories. In: Proceedings of the Soil Science Society of America Annual Meeting. Soil Science Society of American Annual Meeting, November 6-10, 2005, Salt Lake City, UT. 2005 CDROM.

TRANSPORT OF ESCHERICHIA COLI AND ENTEROCOCCUS AT THE FIELD AND WATERSHED SCALE - (Abstract Only)

Moorman, T.B., Tomer, M.D. 2005. Transport of Escherichia coli and Enterococcus at the field and watershed scale [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, Nov. 6-10, 2005, Salt Lake City, UT.

SURFACE-SOIL PROPERTIES AND WATER CONTENTS ACROSS TWO WATERSHEDS WITH CONTRASTING TILLAGE HISTORIES - (Peer Reviewed Journal)

Tomer, M.D., Cambardella, C.A., James, D.E., Moorman, T.B. 2006. Surface-soil properties and water contents across two watersheds with contrasting tillage histories. Soil Science Society of America Journal. 70:620-630.

CONSERVATION PRACTICES: SHORT TERM DECISIONS WITH LONG TERM EFFECTS - (Abstract Only)

Tomer, M.D., Burkart, M.R., Cambardella, C.A., Meek, D.W., James, D.E., Kramer, L.A. 2005. Conservation practices: short term decisions with long term effects. Soil Conservation and Water Quality Symposium Proceedings. Available: http://www.swcs.org/en/swcs_international_conferences/2005_annual_conference/index.cfm?nodeID=7455&audienceID=1

ASSESSING SOIL FERTILITY IN THE SOUTH FORK WATERSHED OF THE IOWA RIVER - (Proceedings)

Nepple, J., Tomer, M.D., Karlen, D.L. 2005. Assessing soil fertility in the south fork watershed of the Iowa river. Soil Conservation and Water Quality Symposium Proceedings. Available: http://www.swcs.org/en/swcs_international_conferences/2005_annual_conference/index.cfm?nodeID=7456&audienceID=1

PLACEMENT OF RIPARIAN FOREST BUFFERS TO IMPROVE WATER QUALITY - (Proceedings)

Tomer, M.D., Dosskey, M.G., Burkart, M.R., James, D.E., Helmers, M.J., Eisenhauer, D.E. 2005. Placement of riparian forest buffers to improve water quality. [CD-ROM]. ST. PAUL, MN: North American Agroforestry Conference.

CHARACTERIZING THE DISCHARGETRIBUTION FROM SMALL AGRICULTURAL WATERSHEDS - (Abstract Only)

Meek, D.W., Tomer, M.D. 2005. Characterizing the discharge contribution from small agricultural watersheds [abstract]. 17th Annual Applied Statistics In Agriculture Conference - Program Abstracts. p. 13.

RELATING HYDROLOGIC VARIABLES AND STREAM ORDER TO LOCATE RIPARIAN BUFFERS - (Peer Reviewed Journal) - (15-Apr-05)

AGRICULTURAL PRACTICES INFLUENCE FLOW REGIMES OF HEADWATER STREAMS IN WESTERN IOWA - (Peer Reviewed Journal)

Tomer, M.D., Meek, D.W., Kramer, L.A. 2005. Agricultural practices influence flow regimes of headwater streams in western iowa. Journal of Environmental Quality. 34:1547-1558.

THE IOWA RIVER'S SOUTH FORK WATERSHED: TERRAIN, LAND USE, AND WATER QUALITY - (Abstract Only)

Tomer, M.D., Burkart, M.R., James, D.E., Cole, K.J., Greenan, C.M., Green, C.H. 2004. The Iowa River's South Fork watershed: Terrain, land use, and water quality [CD-ROM]. ASA-CSSA-SSSA Proceedings. Madison, WI.

SWAT MODEL DEVELOPMENT FOR A LARGE AGRICULTURAL WATERSHED IN IOWA - (Abstract Only)

Green, C.H., Di Luzio, M., Tomer, M.D., Arnold, J.G., James, D.E. 2004. Swat model development for a large agricultural watershed in Iowa [CD-ROM]. ASA-CSSA-SSSA Proceedings. Madison, WI.

RELATING HYDROLOGIC VARIABLES AND STREAM ORDER TO LOCATE RIPARIAN BUFFERS - (Abstract Only)

Burkart, M.R., James, D.E., Tomer, M.D. 2004. Relating hydrologic variables and stream order to locate riparian buffers [CD-ROM]. Proceedings of the 8th International Conference on Diffuse Pollution. Kyoto, Japan; London, England.

FECAL-CONTAMINANT INDICATORS IN SOILS AND WATER OF A WATERSHED PRODUCING SWINE AND OTHER LIVESTOCK - (Other) - (15-Aug-04)

THE IOWA RIVER'S SOUTH FORK WATERSHED: TERRAIN, LAND USE, AND WATER QUALITY - (Popular Publication)

Tomer, M.D., Burkart, M.R., James, D.E., Cole, K.J., Greenan, C.M., Green, C.H. 2004. The Iowa River's South Fork watershed: terrain, land use, and water quality. Soil and Water Conservation Society Proceedings. p. 15.

MOVEMENT AND SURVIVAL OF FECAL CONTAMINANT INDICATORS IN AN IOWA WATERSHED - (Abstract Only)

Moorman, T.B., Tomer, M.D., Douglass, E.A., Greenan, C.M. 2004. Movement and survival of fecal contaminant indicators in an Iowa watershed. Soil and Water Conservation Society. Available:www.swcs.org.

DO SOIL SURVEY AND TERRAIN ANALYSES IDENTIFY SIMILAR PRIORITY SITES FOR CONSERVATION? - (Peer Reviewed Journal)

Tomer, M.D., James, D.E. 2004. Do soil survey and terrain analyses identify similar priority sites for conservation?. Soil Science Society of America Journal. 68:1905-1915.

WATERSHED MANAGEMENT - (Book / Chapter)

Tomer, M.D. 2004. Watershed management. In: Hillel, D., editor. Encyclopedia of Soils in the Environment. Amsterdam: Elsevier, Ltd. 4:306-315.

USING TERRAIN ANALYSIS TO PLAN THE PLACEMENT OF CONSERVATION PRACTICES IN A WATERSHED - (Abstract Only)

Tomer, M.D., James, D.E., Isenhart, T.M. 2003. Using terrain analysis to plan the placement of conservation practices in a watershed [CD-ROM]. Kansas City, MO: Midwest Fish and Wildlife Conference.

RUNOFF AND BASEFLOW RELATIONSHIPS AS INFLUENCED BY MANAGEMENT AND TERRAIN - (Abstract Only)

TOMER, M.D., MEEK, D.W., KRAMER, L.A., JAMES, D.E. RUNOFF AND BASEFLOW RELATIONSHIPS AS INFLUENCED BY MANAGEMENT AND TERRAIN. ASA-CSSA-SSSA ANNUAL MEETING ABSTRACTS. 2003. CD-ROM. MADISON, WI.

WATER QUALITY IN A LARGE AGRICULTURAL WATERSHED IN IOWA - (Abstract Only)

TOMER, M.D., MOORMAN, T.B., GREENAN, C.M. WATER QUALITY IN A LARGE AGRICULTURAL WATERSHED IN IOWA. ASA-CSSA-SSSA ANNUAL MEETING ABSTRACTS. 2003. CD-ROM. MADISON, WI.

HYDROLOGIC AND TERRAIN VARIABLES TO AID STRATEGIC LOCATION OF RIPARIAN BUFFERS - (Peer Reviewed Journal)

Burkart, M.R., James, D.E., Tomer, M.D. 2004. Hydrologic and terrain variables to aid strategic location of riparian buffers. Journal of Soil And Water Conservation. 59(5):105-115.

LONG-TERM EFFECTS OF N FERTILIZER ON GROUNDWATER IN TWO SMALL WATERSHEDS - (Proceedings)

TOMER, M.D., BURKART, M.R. LONG-TERM EFFECTS OF N FERTILIZER ON GROUNDWATER IN TWO SMALL WATERSHEDS. INTERAGENCY CONFERENCE ON RESEARCH IN THE WATERSHEDS. 2003. CD-ROM. TUCSON, AZ.

MODELING HYDROLOGIC VARIABLES AND TERRAIN FEATURES FOR STRATEGICALLY LOCATING RIPARIAN BUFFERS AND WETLANDS - (Abstract Only)

BURKART, M.R., TOMER, M.D., JAMES, D.E., ISENHART, T. MODELING HYDROLOGIC VARIABLES AND TERRAIN FEATURES FOR STRATEGICALLY LOCATING RIPARIAN BUFFERS AND WETLANDS. FIRST INTERAGENCY CONFERENCE ON RESEARCH IN THE WATERSHEDS. 2003. CD-ROM. TUCSON, AZ.

SOUTHFORK WATERSHED ALLIANCE - STAKEHOLDER INVOLVEMENT - (Abstract Only)

Hillmer, G., Tomer, M.D., Miller, D., Sweeney, D., Kadolph, A. 2004. Southfork watershed alliance - stakeholder involvement. Soil and Water Conservation Society. P. 8.

BEST MANAGEMENT PRACTICES RESEARCH IN A WATERSHED WITH SWINE PRODUCTION FACILITIES - (Other)

TOMER, M.D., OLK, D.C. BEST MANAGEMENT PRACTICES RESEARCH IN A WATERSHED WITH SWINE PRODUCTION FACILITIES. NATIONAL PORK BOARD WEB SITE . 2003.

ESTIMATING HYDROLOGIC VARIABLES AND TERRAIN FEATURES TO STRATEGICALLY LOCATE RIPARIAN BUFFERS - (Abstract Only)

BURKART, M.R., JAMES, D.E., TOMER, M.D. ESTIMATING HYDROLOGIC VARIABLES AND TERRAIN FEATURES TO STRATEGICALLY LOCATE RIPARIAN BUFFERS. AMERICAN WATER RESOURCES ASSOCIATION CONFERENCE PROCEEDINGS. 2003. CD-ROM. MIDDLEBURG, VA.

LONG-TERM EFFECTS OF NITROGEN FERTILIZER ON GROUNDWATER IN TWO SMALL WATERSHEDS - (Proceedings)

TOMER, M.D., BURKART, M.R. LONG-TERM EFFECTS OF NITROGEN FERTILIZER ON GROUNDWATER IN TWO SMALL WATERSHEDS. AMERICAN WATER RESOURCES ASSOCIATION CONFERENCE PROCEEDINGS. 2003. CD-ROM. MIDDLEBURG, VA.

LONG-TERM EFFECTS OF N-FERTILIZER USE ON GROUNDWATER NITRATE IN TWO SMALL WATERSHEDS - (Peer Reviewed Journal)

TOMER, M.D., BURKART, M.R. LONG-TERM EFFECTS OF N-FERTILIZER USE ON GROUNDWATER NITRATE IN TWO SMALL WATERSHEDS. JOURNAL OF ENVIRONMENTAL QUALITY. 2003. V. 32. P. 2158-2171.

OPTIMIZING THE PLACEMENT OF RIPARIAN PRACTICES IN A WATERSHED USING TERRAIN ANALYSES - (Peer Reviewed Journal)

TOMER, M.D., JAMES, D.E., ISENHART, T.M. OPTIMIZING THE PLACEMENT OF RIPARIAN PRACTICES IN A WATERSHED USING TERRAIN ANALYSES. JOURNAL OF SOIL AND WATER CONSERVATION. 2003. V. 58(4). P. 198-206.

DISCERNING EFFECTS OF CROP-MANAGEMENT HISTORY ON GROUNDWATER NITRATE CONCENTRATIONS - (Other)

Tomer, M.D., Burkart, M.R. 2003. Discerning effects of crop-management history on groundwater nitrate concentrations. Iowa Water Monitoring Conference. p. 4.

DISCERNING EFFECTS OF CROP-MANAGEMENT HISTORY ON GROUNDWATER NITRATE CONCENTRATIONS - (Abstract Only)

TOMER, M.D., BURKART, M.R. DISCERNING EFFECTS OF CROP-MANAGEMENT HISTORY ON GROUNDWATER NITRATE CONCENTRATIONS. AMERICAN GEOPHYSICAL UNION. 2002. PAPER NO. H61C-0792.

MODELING HYDROLOGIC VARIABLES AND TERRAIN FEATURES FOR STRATEGICALLY LOCATING RIPARIAN BUFFERS AND WETLANDS - (Abstract Only)

BURKART, M.R., JAMES, D.E., TOMER, M.D. MODELING HYDROLOGIC VARIABLES AND TERRAIN FEATURES FOR STRATEGICALLY LOCATING RIPARIAN BUFFERS AND WETLANDS. AMERICAN GEOPHYSICAL UNION. 2002. CD-ROM. WASHINGTON, DC.

EVALUATION OF NITRATE-N FLUXES FROM A TILE-DRAINED WATERSHED - (Proceedings)

TOMER, M.D., MEEK, D.W., JAYNES, D.B., HATFIELD, J.L. EVALUATION OF NITRATE-N FLUXES FROM A TILE-DRAINED WATERSHED. PROCEEDINGS OF THE TMDL SCIENCE ISSUES CONFERENCE. 2002. CD-ROM. Alexandria, VA.

OPTIMIZING THE PLACEMENT OF RIPARIAN PRACTICES TO INTERCEPT NUTRIENTS IN A TILE-DRAINED WATERSHED - (Abstract Only)

TOMER, M.D., JAMES, D.E. OPTIMIZING THE PLACEMENT OF RIPARIAN PRACTICES TO INTERCEPT NUTRIENTS IN A TILE-DRAINED WATERSHED. AMERICAN SOCIETY OF AGRONOMY MEETINGS. 2002. CD-ROM. MADISON, WI.

EVALUATION OF NITRATE-N FLUXES FROM A TILE-DRAINED WATERSHED IN CENTRAL IOWA - (Other)

Tomer, M.D., Meek, D.W., Jaynes, D.B., Hatfield, J.L. 2003. Evaluation of nitrate-n fluxes from a tile-drained watershed in central Iowa. Journal of Environmental Quality. Poster No. 19.

EVALUATION OF NITRATE-N FLUXES FROM A TILE-DRAINED WATERSHED IN CENTRAL IOWA - (Peer Reviewed Journal)

TOMER, M.D., MEEK, D.W., JAYNES, D.B., HATFIELD, J.L. EVALUATION OF NITRATE-N FLUXES FROM A TILE-DRAINED WATERSHED IN CENTRAL IOWA. JOURNAL OF ENVIRONMENTAL QUALITY. 2003. V. 32. P. 642-653.

OPTIMIZING THE PLACEMENT OF PRACTICES THAT IMPROVE WATER QUALITY WITHIN A WATERSHED - (Trade Journal)

TOMER, M.D. OPTIMIZING THE PLACEMENT OF PRACTICES THAT IMPROVE WATER QUALITY WITHIN A WATERSHED. NATIONAL PORK BOARD WEB SITE . 2002.

CHARACTERIZATION OF WATER AND NITRATE FLUXES FROM A TILE-DRAINED WATERSHED - (Abstract Only)

TOMER, M.D., JAYNES, D.B., HATFIELD, J.L., COLE, K.J., DINNES, D.L., JAQUIS, R.J. CHARACTERIZATION OF WATER AND NITRATE FLUXES FROM A TILE-DRAINED WATERSHED. SOIL AND WATER CONSERVATION SOCIETY. 2002. V. 57(5). P. 325.

OPTIMIZING PLACEMENT OF PRACTICES TO INTERCEPT NUTRIENTS IN A TILED-DRAINED AGRICULTURAL WATERSHED - (Abstract Only)

Tomer, M.D., James, D.E. 2002. Optimizing placement of practices to intercept nutrients in a tiled-drained agricultural watershed [abstract]. Soil and Water Conservation Society. 57:296

QUALITY OF WATERS FOUND AT DEPTH WITHIN A LOESS-HILLS AGRICULTURAL LANDSCAPE - (Abstract Only)

BURKART, M.R., TOMER, M.D., JAQUIS, R.J., KRAMER, L.A. QUALITY OF WATERS FOUND AT DEPTH WITHIN A LOESS-HILLS AGRICULTURAL LANDSCAPE. SOIL AND WATER CONSERVATION SOCIETY. 2002. CD-ROM. ANKENY, IA.

HYDROLOGIC CONSTRAINTS TO THE EFFECTIVENESS OF VEGETATED RIPARIAN BUFFERS AND CONSTRUCTED WETLANDS FOR POLLUTION CONTROL - (Popular Publication)

Burkart, M.R., Tomer, M.D. 2002. Hydrologic constraints to the effectiveness of vegetated riparian buffers and constructed wetlands for pollution control. The Sierran. 32(2):6.

OPTIMIZING THE PLACEMENT OF RIPARIAN PRACTICES TO INTERCEPT NUTRIENTS WITHIN TILE-DRAINED AGRICULTURAL WATERSHED - (Abstract Only)

Tomer, M.D., James, D.E. 2002. Optimizing the placement of riparian practices to intercept nutrients within tile-drained agricultural watershed [abstract]. US-International Association for Landscape Ecology. 17:88.

PREDICTED AND MEASURED PHOSPHORUS TRANSPORT IN A WATERSHED WITH INTENSIVE SWINE PRODUCTION - (Abstract Only) - (15-Nov-01)

FLOW-DURATION CHARACTERIZATION OF WATER AND NITRATE FLUXES FROM A TILE-DRAINED WATERSHED - (Abstract Only)

TOMER, M.D., BURKART, M.R., JAYNES, D.B., JAQUIS, R.J., COLE, K.J., HATFIELD, J.L., DINNES, D.L. FLOW-DURATION CHARACTERIZATION OF WATER AND NITRATE FLUXES FROM A TILE-DRAINED WATERSHED. AMERICAN SOCIETY OF AGRONOMY MEETINGS. 2001. CD-ROM. MADISON, WI.

QUALITY OF WATERS FOUND AT DEPTH WITHIN A LOESS-HILLS AGRICULTURAL LANDSCAPE - (Abstract Only)

BURKART, M.R., TOMER, M.D., JAQUIS, R.J., KRAMER, L.A. QUALITY OF WATERS FOUND AT DEPTH WITHIN A LOESS-HILLS AGRICULTURAL LANDSCAPE. ASA-CSSA-SSSA ANNUAL MEETING ABSTRACTS. 2001. CD-ROM. MADISON, WI.

SPATIAL AND TEMPORAL VARIABILITY OF SOIL CARBON - (Abstract Only)

KASPAR, T.C., PARKIN, T.B., CAMBARDELLA, C.A., KARLEN, D.L., TOMER, M.D. SPATIAL AND TEMPORAL VARIABILITY OF SOIL CARBON. ASA-CSSA-SSSA ANNUAL MEETING ABSTRACTS. 2001. CD-ROM. MADISON, WI.