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United States Department of Agriculture

Agricultural Research Service

David E James
National Laboratory for Agriculture and the Environment
Geographic Information Specialist

Phone: (515) 294-6858
Fax: (515) 294-8125
2110 UNIVERSITY BOULEVARD
NLAE
AMES, IA, 50011-0000


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Opportunities for energy crop produciton based on subfield distribution of profitability - (Peer Reviewed Journal) - (26-Sep-14)
Closed depression topography Harps soil, revisited Reprint Icon - (Peer Reviewed Journal)
Logsdon, S.D., James, D.E. 2014. Closed depression topography Harps soil, revisited. Soil Horizons. 55(2):1-7. Available at: https://www.soils.org/publications/sh/tocs/55/2.
Modeling the long-term effect of winter cover crops on nitrate transport in artificially drained fields across the Midwest U.S. - (Abstract Only) - (08-Jan-14)
Simulated potential water quality impact of fall-planted cover crops across the Midwestern USA - (Peer Reviewed Journal) - (08-Jan-14)
Introducing the GRACEnet/REAP data contribution, discovery and retrieval system - (Peer Reviewed Journal)
Del Grosso, S.J., White, J.W., Wilson, G., Vandenberg, B.C., Karlen, D.L., Follett, R.F., Johnson, J.M., Franzluebbers, A.J., Archer, D.W., Gollany, H.T., Liebig, M.A., Ascough II, J.C., Reyes-Fox, M.A., Starr, J.L., Barbour, N.W., Polumsky, R.W., Gutwein, M., James, D.E., Pellack, L.S. 2013. Introducing the GRACEnet/REAP data contribution, discovery and retrieval system. Journal of Environmental Quality. 42:1274-1280. DOI:10.2134/jeq2013.03.0097.
Combining precision conservation technologies into a flexible framework to facilitate agricultural watershed planning - (Other)
Tomer, M.D., Porter, S.A., James, D.E., Boomer, K.M., Kostel, J.A., Mclellan, E. 2013. Combining precision conservation technologies into a flexible framework to facilitate agricultural watershed planning. Journal of Soil and Water Conservation. 68(5):113A-120A.
A framework for watershed conservation planning using precision technologies - (Abstract Only)
Tomer, M.D., Porter, S.A., James, D.E. 2014. A framework for watershed conservation planning using precision technologies [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, Nov. 3-6, 2013, Tampa, FL.
Closed depression topography and Harps soil, revisited - (Abstract Only)
Logsdon, S.D., James, D.E. 2012. Closed depression topography and Harps soil, revisited. ASA-CSSA-SSSA Annual Meeting Abstracts. Available: http://scisoc.confex.com/scisoc/2012am/webprogram/Paper70753.html.
Estimating nitrate load reductions from placing constructed wetlands in a HUC-12 watershed using LiDAR data - (Peer Reviewed Journal)
Tomer, M.D., Crumpton, W.G., Bingner, R.L., Kostel, J.A., James, D.E. 2013. Estimating nitrate load reductions from placing constructed wetlands in a HUC-12 watershed using LiDAR data. Ecological Engineering. 56:69-78.
Siting multiple conservation practices in a tile-drained watershed using LiDAR topographic data - (Book / Chapter) - (20-Apr-12)
Soil properties following reforestation or afforestation of marginal cropland - (Peer Reviewed Journal)
Sauer, T.J., James, D.E., Cambardella, C.A., Hernandez-Ramirez, G. 2012. Soil properties following reforestation or afforestation of marginal cropland. Plant and Soil. Available: http://www.springerlink.com/openurl.asp?genre=article&id=doi:10.1007/s11104-012-1258-8.
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.
Sustaining the Earth's watersheds, agricultural research data system - (Abstract Only)
Steiner, J.L., Sadler, E.J., Hatfield, J.L., James, D.E., Cole, K.J., Wilson, G.J. 2011. Sustaining the Earth's watersheds, agricultural research data system [abstract]. Soil and Water Conservation Society, Modeling Summit, March 29-31, 2011, Denver, Colorado. Available: www.swcs.org/index.cfm?nodeID=31752&audienceID=1.
Carbon sources and dynamics in afforested and cultivated US corn belt soils - (Proceedings)
Hernandez Ramirez, G., Sauer, T.J., Cambardella, C.A., Brandle, J.R., James, D.E. 2010. Carbon sources and dynamics in afforested and cultivated US corn belt soils. In: Gilkes, R.J. and Prakongkep, N., editors. Proceedings of the 19th World Congress of Soil Science, Aug. 6-10, 2010, Brisbane, Australia. DVD.
Carbon sources and dynamics in afforested and cultivated corn belt soils - (Peer Reviewed Journal)
Hernandez-Ramirez, G., Sauer, T.J., Cambardella, C.A., Brandle, J.R., James, D.E. 2011. Carbon sources and dynamics in afforested and cultivated corn belt soils. Soil Science Society of America Journal. 75:216-225.
Potential water quality impact of drainage water management in the Midwest USA - (Proceedings)
Jaynes, D.B., Thorp, K.R., James, D.E. 2010. Potential water quality impact of drainage water management in the Midwest USA. International Drainage Symposium. ASABE Paper No. IDS-CSBE100084.
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.
Stewards Watershed Data System: System Design and Implementation - (Peer Reviewed Journal)
Steiner, J.L., Sadler, E.J., Wilson, G.J., Hatfield, J.L., James, D.E., Vandenberg, B.C., Chen, J., Oster, T., Ross, J.D., Cole, K.J. 2009. STEWARDS watershed data system: system design and implementation. Transactions of the ASABE. 52(5):1523-1533.
Data management to enhance long-term watershed research capacity: context and STWEARDS case study - (Peer Reviewed Journal)
Steiner, J.L., Sadler, E.J., Hatfield, J.L., Wilson, G.J., James, D.E., Vandenberg, B.C., Ross, J.D., Oster, T., Cole, K.L. 2009. Data management to enhance long-term watershed research capacity: context and STWEARDS case study. Journal of Ecohydrology. 2:391-398.
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.
Floodplain Sediment Accretion and Stream-course Straightening Along the South Fork of the Iowa River Reprint Icon - (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
Data management to enhance long-term watershed research capacity - (Proceedings)
Steiner, J.L., Sadler, E.J., Hatfield, J.L., Wilson, G.J., James, D.E., Vandenberg, B.C., Ross, J.D., Oster, T., Cole, K.L. 2009. Data management to enhance long-term watershed research capacity. National Sedimentaton Laboratory (NSL)- 50 Years of Soil & Water Research in a Changing Agricultural Environment, Sept. 3-5, 2008, Oxford, MS. 2009 CD-ROM.
Enhancing watershed research capacity: the role of data management - (Abstract Only)
Steiner, J.L., Sadler, E.J., Hatfield, J.L., Wilson, G.J., James, D.E., Vandenberg, B.C., Ross, J.D., Oster, T., Cole, K.L. 2008. Enhancing watershed research capacity: the role of data management [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts, October 5-9, 2008, Houston, Texas. Abstract No. 535-4. Available: http://a-c-s.confex.com/crops/2008am/webprogram/Paper41960.html
Sustaining the Earth's Watersheds-Agricultural Research Data System: Data development, user interaction, and operations management - (Peer Reviewed Journal)
Sadler, E.J., Steiner, J.L., Chen, J., Wilson, G.J., Ross, J.D., Oster, T., James, D.E., Vandenberg, B.C., Hatfield, J.L. 2008. Sustaining the Earth's Watersheds-Agricultural Research Data System: Data development, user interaction, and operations management. Journal of Soil and Water Conservation. 63(6):577-589.
Sustaining the earth's watersheds-agricultural research data system: Overview of development and challenges - (Peer Reviewed Journal)
Steiner, J.L., Sadler, E.J., Chen, J., Wilson, G.J., James, D.E., Vandenberg, B.C., Ross, J.D., Oster, T., Cole, K.L. 2008. Sustaining the earth's watersheds-agricultural research data system: Overview of development and challenges. Journal of Soil and Water Conservation. 63(6):569-576.
Methods to Prioritize Placement of Riparian Buffers for Improved Water Quality Reprint Icon - (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.
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.
The Extent of Cropland Drainage in the United States - (Abstract Only)
Jaynes, D.B., James, D.E. 2007. The Extent of Cropland Drainage in the United States [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, Nov. 4-8, 2007, New Orleans, LA.
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
Stewards: a Watershed Data System - (Abstract Only)
Steiner, J.L., Sadler, E.J., Wilson, G.J., James, D.E., Vandenberg, B.C., Ross, J.D., Oster, T., Cole, K.J., Chen, J., Hatfield, J.L. 2007. Stewards: A watershed data system [abstract]. ASA-CSSA-SSSA Annual. CD-ROM 2007.
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.
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.
Predicting Spatial Variation of Crop Yield Across a Landscape Using Aggregated Environmental Data - (Peer Reviewed Journal)
Williams, C.L., Liebman, M., Edwards, J.W., James, D.E., Singer, J.W., Arritt, R.W., Herzmann, D. 2008. Predicting spatial variation of crop yield across a landscape using aggregated environmental data. Crop Science. 48:1545-1559.
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.
Use of aggregated environment data to predict spatial variation of crop yields across a landscape - (Abstract Only)
Williams, C., Liebman, M., Edwards, J.W., James, D.E., Herzmann, D., Singer, J.W., Arritt, R. 2006. Use of aggregated environment data to predict spatial variation of crop yields across a landscape. American Society of Agronomy Abstracts. P314-3.
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.
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.
Daily Estimates of Rainfall, Water Runoff, and Soil Erosion in Iowa - (Peer Reviewed Journal)
Cruse, R.M., Flanagan, D.C., Frankenberger, J.R., Gelder, B.K., Herzmann, D., James, D.E., Krajewski, W., Kraszewski, M., Laflen, J.M., Opsomer, J. and Todey, D. 2006. Daily estimates of rainfall, water runoff, and soil erosion in iowa. Journal of Soil and Water Conservation. 61(4):191-199.
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.
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
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.
Impacts of Integrated Crop-Livestock Systems on Nitrogen Dynamics and Soil Erosion in Western Iowa Watersheds - (Peer Reviewed Journal)
Burkart, M.R., James, D.E., Liebman, M.Z., Herndl, C. 2005. Impacts of integrated crop-livestock systems on nitrogen dynamics and soil erosion in western Iowa watersheds. Journal of Geophysical Research-Biogeosciences. 110:G1. G01009,10.1029/2004JG000008.
Relating Hydrologic Variables and Stream Order to Locate Riparian Buffers - (Peer Reviewed Journal) - (15-Apr-05)
Integrating Principles of Nitrogen Dynamics in a Method to Estimate Leachable Nitrogen under Agricultural Systems - (Peer Reviewed Journal) - (15-Apr-05)
A Nitrogen Budget Model As An Indicator of Leachable Nitrogen under Agricultural Catchments - (Other)
Burkart, M.R., James, D.E., Liebman, M., Van Ouwerkerk, E. 2005. A nitrogen budget model as an indicator of leachable nitrogen under agricultural catchments. Poster. Ames, IA.
A Nitrogen Budget Model As An Indicator of Leachable Nitrogen under Agricultural Catchments - (Abstract Only)
Burkart, M.R., James, D.E., Liebman, M., Van Ouwerkerk, E. 2004. A nitrogen budget model as an indicator of leachable nitrogen under agricultural catchments [CD-ROM]. Washington, D.C. American Geophysical Union.
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.
Integrating Principles of Nitrogen Dynamics in a Method to Estimate Leachable Nitrogen under Agricultural Systems - (Abstract Only)
Burkart, M.R., James, D.E., Liebman, M., Vanouwerkerk, E. 2004. Integrating principles of nitrogen dynamics in a method to estimate leachable nitrogen under agricultural systems[abstract]. Proceedings of the 8th International Conference on Diffuse Pollution. 1:175
Effects of Integrated Crop-Livestock Systems on Leachable Nitrogen, Change in Soil Organic Nitrogen, and Soil Erosion in Western Iowa Watersheds - (Abstract Only) - (28-Jul-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.
Quantification of Tillage and Landscape Effects on Soil Carbon in Small Iowa Watersheds - (Peer Reviewed Journal)
Moorman, T.B., Cambardella, C.A., James, D.E., Karlen, D.L., Kramer, L.A. 2004. Quantification of tillage and landscape effects on soil carbon in small Iowa watersheds. Soil & Tillage Research. 78(2):225-236.
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.
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.
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.
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.
Measurement and Prediction of Phosphorus Transport from Swine Manure at the Watershed Scale - (Proceedings)
SAUER, T.J., SREEMATKANDALAM, K.C., TIM, U.S., JAMES, D.E., HATFIELD, J.L. MEASUREMENT AND PREDICTION OF PHOSPHORUS TRANSPORT FROM SWINE MANURE AT THE WATERSHED SCALE. INTERNATIONAL SYMPOSIUM ON AGRICULTURAL & FOOD PROCESSING WASTES PROCEEDING. 2003. P. 535-541.
Measurement and Prediction of Phosphorus Transport from Swine Manure at the Watershed Scale - (Abstract Only)
Sauer, T.J., Sreematkandalam, K.C., Tim, U.S., James, D.E., Hatfield, J.L. Measurement and Prediction of Phosphorus Transport From Swine Manure at the Watershed Scale [abstract]. International Symposium on Agricultural & Food Processing Wastes Proceeding. American Society of Agricultural Engineers. p. 535.
A Multi-Model Approach for Sustainable Agriculture in the Us Corn Belt - (Abstract Only)
VAN OUWERKERK, E.J., JAMES, D.E., RICHARD, T.L., BURKART, M.R., LIEBMAN, M. A MULTI-MODEL APPROACH FOR SUSTAINABLE AGRICULTURE IN THE US CORN BELT. ASAE ANNUAL INTERNATIONAL MEETING. 2003. ABSTRACT. P. 387.
A Multi-Model Approach for Sustainable Agriculture in the Us Corn Belt - (Proceedings)
VAN OUWERKERK, E., JAMES, D.E., RICHARD, T.L., LIEBMAN, M., BURKART, M.R. A MULTI-MODEL APPROACH FOR SUSTAINABLE AGRICULTURE IN THE US CORN BELT. ASAE ANNUAL INTERNATIONAL MEETING. 2003. P. 387-393.
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.
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.
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.
Agricultural Nitrogen Trends in the Mississippi Basin, 1949-1997 - (Book / Chapter) - (26-Nov-02)
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.
Hydrologic Variables for Optimum Location of Riparian Buffers to Reduce Non-Point-Source Agricultural Contaminants - (Abstract Only)
BURKART, M.R., JAMES, D.E. HYDROLOGIC VARIABLES FOR OPTIMUM LOCATION OF RIPARIAN BUFFERS TO REDUCE NON-POINT-SOURCE AGRICULTURAL CONTAMINANTS. INTERNATIONAL CONFERENCE ON DIFFUSE POLLUTION. 2002. CD-ROM. AMSTERDAM, NL.
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
Potential Impact of Earthen Waste Storage Structures on Water Resources in Iowa - (Peer Reviewed Journal)
SIMPKINS, W.W., BURKART, M.R., HELMKE, M.F., TWEDT, T.N., JAMES, D.E., JAQUIS, R.J., COLE, K.J. POTENTIAL IMPACT OF EARTHEN WASTE STORAGE STRUCTURES ON WATER RESOURCES IN IOWA. JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION. 2002. V. 38(3). P. 759-771.
Relationship Between Six Years of Corn Yields and Terrain Attributes - (Peer Reviewed Journal)
KASPAR, T.C., COLVIN, T.S., JAYNES, D.B., KARLEN, D.L., JAMES, D.E., MEEK, D.W., PULIDO, D., BUTLER, H. RELATIONSHIP BETWEEN SIX YEARS OF CORN YIELDS AND TERRAIN ATTRIBUTES. PRECISION AGRICULTURE. 2003. V. 4. P. 87-101.
Cluster Analysis of Spatiotemporal Corn Yield Patterns in An Iowa Field - (Peer Reviewed Journal)
JAYNES,D.B., KASPAR,T.C., COLVIN,T.S., JAMES,D.E., CLUSTER ANALYSIS OF SPATIOTEMPORAL CORN YIELD PATTERNS IN AN IOWA FIELD, AGRONOMY JOURNAL, 2003. v. 95. p. 574-586.
A Method for Source-Load Allocation of Nutrients in Agricultural Watersheds - (Abstract Only)
BURKART, M.R., JAMES, D.E. A METHOD FOR SOURCE-LOAD ALLOCATION OF NUTRIENTS IN AGRICULTURAL WATERSHEDS. AMERICAN GEOPHYSICAL UNION. 2001. CD-ROM. WASHINGTON, DC.
Predicted and Measured Phosphorus Transport in a Watershed with Intensive Swine Production - (Abstract Only) - (15-Nov-01)
Measured and Predicted Phosphorus Transport from Animal Manure in a Midwestern U.S. Watershed - (Abstract Only) - (15-Jun-01)
Agricultural Nitrogen Trends in the Mississippi Basin 1949-1997 - (Book / Chapter) - (30-Apr-01)
N Management and Hypoxia: a Research Focus of the USDA-ARS National Soil Tilth Laboratory - (Abstract Only)
Dinnes, D.L., Jaynes, D.B., Hatfield, J.L., Burkart, M.R., Parkin, T.B., Cambardella, C.A., Karlen, D.L., Colvin, T.S., Kaspar, T.C., James, D.E. 2001. N management and hypoxia: A research focus of the USDA-ARS National Soil Tilth Laboratory. Farm Bureau Members National Convention. American Farm Bureau Federation, Washington, D.C.
Temporal and Geographic Trends of Agricultural Nitrogen and Relations to Stream Loads in the Mississippi Basin - (Abstract Only) - (09-Nov-00)
Yield Certainty with Plots Or Fields - (Abstract Only)
Colvin, T.S., Jaynes, D.B., Kaspar, T.C., James, D.E., Meek, D.W. 2000. Yield certainty with plots or fields [CD-ROM]. International Conference on Precision Agriculture Abstracts & Proceedings. St. Paul, Minnesota.
Estimating Corn Yield Using Six Years of Yield Data and Terrain Attributes - (Proceedings) - (19-Jul-00)
Geographic Distribution of Excess Agricultural-Nitrogen in the Mississippi River Basin - (Proceedings) - (20-Jan-00)
Contributions to Gulf of Mexico Hypoxia from Agricultural Nitrogen in the Mississippi Basin - (Proceedings) - (30-Jul-99)
Agricultural-Nitrogen Contribution to Hypoxia in the Gulf of Mexico - (Abstract Only) - (30-Jul-99)
Field-Scale Watershed Evaluations on Deep Loess Soils: I. Topography and Agronomic Practices - (Peer Reviewed Journal)
Karlen, D.L., Kramer, L.A., James, D.E., Buhler, D.D., Moorman, T.B., Burkart, M.R. 1999. Field-scale watershed evaluations on deep loess soils: I. topography and agronomic practices. Journal of Soil and Water Conservation. 54(4):693-703.
Field-Scale Watershed Evaluations on Deep Loess Soils: Ii. Hydrologic Responses to Different Agricultural Land Management Systems - (Peer Reviewed Journal)
Kramer, L.A., Burkart, M.R., Meek, D.W., Jaquis, R.J., James, D.E. 1999. Field-scale watershed evaluations on deep loess soils: II. Hydrologic responses to different agricultural land management systems. Journal of Soil and Water Conservation. 54(4):705-710.
Geographic Distribution of Excess Agricultural-Nitrogen in the Mississippi River Basin - (Peer Reviewed Journal) - (07-Jun-99)
An Investigation of the Hydrogeologic Settings of Selected Earthen Waste Storage Systems in Iowa - (Other) - (29-Jan-99)
Application of Field-Scale Models and Georeferenced Data to Estimate Residual Nitrogen from Agriculture in the Mississippi River Basin - (Proceedings) - (10-Dec-98)
Agricultural-Nitrogen Contributions to Hypoxia in the Gulf of Mexico - (Peer Reviewed Journal) - (04-Nov-98)
Agricultural-Nitrogen Sources and Potential Contributions to Hypoxia in Thegulf of Mexico - (Peer Reviewed Journal) - (04-Nov-98)
Agricultural-Nitrogen Contributions to Hypoxia in the Gulf of Mexico - (Proceedings) - (04-Sep-98)
Enhancing Soil Maps Using Digital Terrain Analysis - (Proceedings) - (31-Jul-98)
Crop Yield Variability As Influenced by Water in Rain-Fed Agriculture - (Abstract Only) - (22-Jul-98)
Crop Yield Variability As Influenced by Water in Rain-Fed Agriculture - (Proceedings) - (22-Jul-98)
Agricultural-Nitrogen Contributions to Gulf of Mexico Hypoxia - (Abstract Only) - (03-Jun-98)
Agricultural-Nitrogen Contributions to Gulf of Mexico Hypoxia - (Abstract Only) - (29-Mar-98)
Assessing Groundwater Vulnerability to Agrichemical Contamination in the Midwest U.S. - (Peer Reviewed Journal) - (07-Oct-97)
Using a GIS to Assess Ground-Water Vulnerability to Diffuse Agrichemical Contamination in the Midwestern U.S. - (Proceedings) - (16-May-97)
Last Modified: 10/1/2014
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