Page Banner

United States Department of Agriculture

Agricultural Research Service

Philip Heilman (Phil)

Research Leader


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Tillage and application rate affects atrazine transport to subsurface drainage with macropore flow: evaluation of RZWQM using a long-term field study - (Peer Reviewed Journal) - (16-Sep-13)
Application of a rangeland soil erosion model using NRI data in southeastern Arizona 2191 - (Peer Reviewed Journal) - (15-Feb-13)
Mapping total vegetation cover across western rangelands with moderate-resolution imaging spectroradiometer data - (Peer Reviewed Journal)
Hagen, S., Heilman, P., Marsett, R., Torbick, N., Salas, W., Van Ravensway, J., Qi, J. 2012. Mapping total vegetation cover across western rangelands with moderate-resolution imaging spectroradiometer data. Rangeland Ecology and Management. 65(5):456-467.
Assessing phenological change in China from 1982 to 2006 using AVHRR imagery - (Peer Reviewed Journal)
Wei, H., Heilman, P., Qi, J., Nearing, M.A., Gu, Z., Zhang, Y. 2012. Assessing phenological change in China from 1982 to 2006 using AVHRR imagery. Frontiers of Earth Science. 6(3):227–236.
An ecological assessment of pasturelands in the Balkhash area of Kazakhstan with remote sensing and models - (Peer Reviewed Journal)
Lebed, L., Qi, J., Heilman, P. 2012. An ecological assessment of pasturelands in the Balkhash area of Kazakhstan with remote sensing and models. Environmental Research Letters. 7: 1-8.
Extending results from agricultural fields with intensively monitored data to surrounding areas for water quality management - (Peer Reviewed Journal)
Heilman, P., Malone, R.W., Ma, L., Hatfield, J.L., Ahuja, L.R., Boyle, K., Kanwar, R. 2012. Extending results from agricultural fields with intensively monitored data to surrounding areas for water quality management. Agricultural Systems. 106:59-71.
Utilizing long-term ARS data to compare and contrast hydroclimatic trends from snow and rainfall dominated watersheds 2142 - (Proceedings) - (06-Sep-11)
Modeling climate change effects on runoff and soil erosion in southeastern Arizona rangelands and implications for mitigation with rangeland conservation practices - (Peer Reviewed Journal)
Zhang, Y., Hernandez, M., Anson, E.L., Nearing, M.A., Wei, H., Stone, J.J., Heilman, P. 2012. Modeling climate change effects on runoff and soil erosion in southeastern Arizona rangelands and implications for mitigation with rangeland conservation practices. Journal of Soil and Water Conservation. 67(5):390-405.
Continuum of risk analysis methods to assess tillage system sustainability at the experimental plot level - (Peer Reviewed Journal)
Fathelrahman, E.M., Ascough II, J.C., Hoag, D.L., Malone, R.W., Heilman, P., Wiles, L., Kanwar, R.S. 2011. Continuum of risk analysis methods to assess tillage system sustainability at the experimental plot level. Sustainability. 3(7):1035-1063. DOI:10.3390/su3071035.
Agwa: the Automated Geospatial Watershed Assessment Tool to Inform Rangeland Management Reprint Icon - (Peer Reviewed Journal)
Goodrich, D.C., Guertin, D.P., Burns, I.S., Nearing, M.A., Stone, J.J., Wei, H., Heilman, P., Hernandez, M., Spaeth, K., Pierson Jr, F.B., Paige, G.B., Miler, S.N., Kepner, W., Mcclaran, M.P., Weltz, M.A., Jolley, L. 2011. AGWA: The Automated Geospatial Watershed Assessment Tool to inform rangeland management. Rangelands. 33(4):41-47.
An economic and stochastic efficiency comparison of tillage systems in corn and soybean under risk - (Peer Reviewed Journal)
Fathelrahman, E.M., Ascough II, J.C., Hoag, D.L., Malone, R.W., Heilman, P., Wiles, L., Kanwar, R.S. 2011. An economic and stochastic efficiency comparison of tillage systems in corn and soybean under risk. Experimental Agriculture. 47(1):111-136.
Automated Geospatial Waershed Asessment Tool for Rangelands - (Proceedings)
Guertin, D., Paige, G., Goodrich, D.C., Nearing, M.A., Miler, S., Heilman, P., Stone, J.J., Ruyle, G., Burns, S., Wei, H., Mcclaran, M. 2010. Automated Geospatial Waershed Asessment Tool for Rangelands. Proceedings CD-ROM of the Joint 9th Federal Interagency Sedimentation Conference and 4th Federal Interagency Hydrologic Modeling Conference, June 27 - July 1, 2010, Riviera Hotel, Las Vegas, Nevada.
Ecological Sites of the Walnut Gulch Experimental Watershed - (Proceedings)
Heilman, P., Stone, J.J., Robinett, D. 2010. Ecological Sites of the Walnut Gulch Experimental Watershed. Proceedings of AWRA 2010 Spring Specialty Conference Geographic Information Systems (GIS) and Water Resources VI March 29-31, 2010 Orlando, Florida.
Automated Geospatial Watershed Assessment Tool for Rangelands - (Proceedings)
Guertin, D.P., Paige, G., Goodrich, D.C., Nearing, M.A., Miller, S.N., Heilman, P., Stone, J.J., Ruyle, G., Burns, S., Wei, H., Mcclaran, M. 2010. Automated Geospatial Watershed Assessment Tool for Rangelands. Proceedings CD-ROM of the Joint 9th Federal Interagency Sedimentation Conference and 4th Federal Interagency Hydrologic Modeling Conference, June 27 - July 1, 2010, Riviera Hotel, Las Vegas, Nevada.
Monitoring Rangeland Ecosystems with Remote Sensing: An example from Kazakhstan - (Proceedings)
Lebed, L., Qi, J., Heilman, P. 2008. Monitoring Rangeland Ecosystems with Remote Sensing: An example from Kazakhstan. NATO Advanced Research Workshop on Environmental Problems of Central Asia and their Economic, Social and Security Impacts. 1-5 October 2007, Tashkent, Uzbekistan. p. 135-146.
Integrated water management research in Mexico: Opportunity for North American collaboration - (Peer Reviewed Journal)
Sanchez-Cohen, I., Moreno, J., Spring, U., Heilman, P., Barrios, J., Padilla, G., Valle, M. 2008. Integrated water management research in Mexico: Opportunity for North American collaboration. Journal of Soil and Water Conservation. 63(6): 212A-213A.
Geographic information systems database, Walnut Gulch Experimental Watershed, Arizona, United States 1868 - (Peer Reviewed Journal)
Heilman, P., Nichols, M.H., Goodrich, D.C., Miller, S.N., Guertin, D.P. 2008. Geographic information systems database, Walnut Gulch Experimental Watershed, Arizona, United States. Water Resources Research, Vol. 44, W05S11, doi:10.1029/2006WR005777.
Technology, Complexity and Change in Agricultural Production Systems - (Peer Reviewed Journal)
Sassenrath, G.F., Heilman, P., Luschei, E., Bennett, G.L., Fitzgerald, G., Klesius, P.H., Tracy, W., Williford, J.R., Zimba, P.V. 2008. TECHNOLOGY, COMPLEXITY AND CHANGE IN AGRICULTURAL PRODUCTION SYSTEMS. Renewable Agriculture and Food System 23(4):285-295
Preface to special section on Fifty Years of Research and Data Collection: U.S. Department of Agriculture Walnut Gulch Experimental Watershed 1930 - (Peer Reviewed Journal)
Moran, M.S., Emmerich, W.E., Goodrich, D.C., Heilman, P., Holifield Collins, C.D., Keefer, T.O., Nearing, M.A., Nichols, M.H., Renard, K.G., Scott, R.L., Smith, J.R., Stone, J.J., Unkrich, C.L., Wong, J.K. 2008. Preface to special section on Fifty Years of Research and Data Collection: U.S. Department of Agriculture Walnut Gulch Experimental Watershed. Water Resources Research, Vol. 44, W05S01, doi:10.1029/2007WR006083.
Simulated N Management Effects on Corn Yield and Tile-Drainage Nitrate Loss - (Peer Reviewed Journal)
Malone, R.W., Ma, L., Heilman, P., Karlen, D.L., Kanwar, R.S., Hatfield, J.L. 2007. Simulated N Management Effects on Corn Yield and Tile-Drainage Nitrate Loss. Geoderma. 140:272-283.
Empirical Analysis and Prediction of Nitrate Loading and Crop Yield for a Corn-Soybean Rotations - (Peer Reviewed Journal)
Malone, R.W., Ma, L., Karlen, D.L., Meade, T.G., Meek, D.W., Heilman, P., Kanwar, R.S., Hatfield, J.L. 2007. Empirical analysis and prediction of nitrate loading and crop yield for a corn-soybean rotations. Geoderma. 140:223-234.
Evaluating and predicting agricultural management effects under tile-drainage using modified APSIM - (Peer Reviewed Journal)
Malone, R.W., Huth, N., Carberry, P.S., Ma, L., Kaspar, T.C., Karlen, D.L., Meade, T.G., Kanwar, R.S., Heilman, P. 2007. Evaluating and predicting agricultural management effects under tile-drainage using modified APSIM. Geoderma. 140:310-322.
Rzwqm Simulation of Long-Term Crop Production, Water and Nitrogen Balances in Northeast Iowa Reprint Icon - (Peer Reviewed Journal)
Ma, L., Malone, R.W., Heilman, P., Karlen, D.L., Kanwar, R., Cambardella, C.A., Ahuja, L.R. 2007. RZWQM simulation of long-term crop production, water and nitrogen balances in northeast Iowa. Geoderma 140(3):247-259. doi: 10.1016/j.geoderma.2007.04.009.
Simulating Management Effects on Crop Production, Tile Drainage, and Water Quality Using Rzwqm-Dssat Reprint Icon - (Peer Reviewed Journal)
Anapalli, S., Ma, L., Malone, R.W., Heilman, P., Ahuja, L.R., Kanwar, R., Karlen, D.L., Hoogenboom, G. 2007. Simulating management effects on crop production, tile drainage, and water quality using RZWQM-DSSAT. Geoderma 140:3 (2007)297-309. Published on-line 5/23/2007. doi:10.1016/j.geoderma.2007.04.013.
Sensitivity of Tile Drainage Flow and Crop Yield on Measured and Calibrated Soil Hydraulic Properties Reprint Icon - (Peer Reviewed Journal)
Ma, L., Malone, R.W., Heilman, P., Ahuja, L.R., Meade, T.G., Anapalli, S.S., Ascough Ii, J.C., Kanwar, R.S. 2007. Sensitivity of tile drainage flow and crop yield on measured and calibrated soil hydraulic properties. Geoderma 140:3(2007) 284-296. Published on-line 5/16/2007. doi:10.1016/j.geoderma.2007.04.012
Rzwqm Simulated Effects of Crop Rotation, Tillage, and Controlled Drainage on Crop Yield and Nitrate-N Loss in Drain Flow. Reprint Icon - (Peer Reviewed Journal)
Ma, L., Malone, R.W., Heilman, P., Jaynes, D.B., Ahuja, L.R., Saseendran, S.A., Kanwar, R.S., Ascough II, J.C. 2007. RZWQM simulated effects of crop rotation, tillage, and controlled drainage on crop yield and nitrate-n loss in drain flow. Geoderma 140(3):260-271. doi:10/1016/j/geoderma.2007.04.010.
Decision Support for Nitrogen Management in Tile-Drained Agriculture 1825 Reprint Icon - (Proceedings)
Heilman, P., Malone, R.W., Ma, L., Hatfield, J.L., Ahuja, L.R., Ayen, J., Boyle, K., Kanwar, R. 2006. Decision support for nitrogen management in tile-drained agriculture. In: Voinov, A., Jakeman, A.J., Rizzoli, A.E. (eds). Proceedings of the iEMSs Third Biennial Meeting: "Summit on Environmental Modelling and Software". International Environmental Modelling and Software Society, Burlington, USA, July 2006. CD ROM.
Remote Sensing for Grassland Management in the Arid Southwest 1633 - (Peer Reviewed Journal)
Marsett, R.C., Qi, J., Heilman, P., Biedenbender, S.H., Watson, M.C., Amer, S., Weltz, M.A., Goodrich, D.C., Marsett, R. 2006. Remote sensing for grassland management in the arid southwest. Rangeland Ecology and Management 59(5): 530-540.
Empirical Modeling of Nitrate Loading and Crop Yield for Corn-Soybean Rotations in Iowa - (Abstract Only) - (11-May-06)
Decision Support for Nitrogen Management in Tile Drained Agriculture 1811 Reprint Icon - (Proceedings)
Heilman, P., Malone, R.W., Ma, L., Hatfield, J.L., Ahuja, L.R., Ayen, J., Boyle, K., Kanwar, R. 2006. Decision support for nitrogen management in tile drained agriculture. In: Jakeman, A., Rizzoli, A. (eds). Proceedings of the IEMSs Third Biennial Meeting: "Summit on Environmental Modelling and Software". International Environmental Modelling and Software Society, Burlington, USA, July 2006. CD ROM.
A Web-Based Tool for Economic Analysis of Sediment Control on Rangeland Watersheds 1827 - (Proceedings)
Duan, Y., Heilman, P., Guertin, D.P. 2006. A web-based tool for economic analysis of sediment control on rangeland watersheds. In: Voinov, A., Jakeman, A., Rizzoli, A. (eds). Proceedings of the IEMSs Third Biennial Meeting: "Summit on Environmental Modelling and Software". International Environmental Modelling and Software Society, Burlington, USA, July 2006. CD ROM.
Optimization of Grazing Management for Watershed Sediment Control 1812 Reprint Icon - (Proceedings)
Duan, Y., Heilman, P., Guertin, D.P. 2006. Optimization of grazing management for watershed sediment control. In: Voinov, A., Jakeman, A., Rizzoli, A. (eds). Proceedings of the iEMSs Third Biennial Meeting: "Summit on Environmental Modelling and Software". International Environmental Modelling and Software Society, Burlington, USA, July 2006. CD ROM.
Planeacion Multiobjetivo En Los Distritos DE Riego En Mexico. Aplicacion DE Un Sistema DE Auxclio Para La Toma DE Decisiones 1817 - (Peer Reviewed Journal)
Cohen, I.S., Rodriguez, H.M., Heilman, P., Cervantes, G.G., Moreno, S.F., Inzunza, M.A., Avalos, J.E. 2006. Planeacion multiobjetivo en los distritos de riego en mexico. Aplicacion de un sistema de auxclio para la toma de decisiones. Ingenieria Hidraulica en Mexico. 21(3):101-111.
Defining Boundaries Across Borders: a Case Study Extending a Major Land Resource Area into Mexico. 1708 - (Proceedings)
Macewen, R., Mann, R.S., Heilman, P., Stone, J.J., Melgoza Castillo, A., Guertin, D.P. 2005. Defining boundaries across borders: a case study extending a major land resource area into mexico. Proc. Biodiversity and Management of the Madrean Archipelago II Conf., Connecting Mountain Islands and Desert Seas, May 11-14, Tucson, AZ, pp. 525-528.
Field Scale Water Quality Management in the Us: State of the Art 2005 1814 - (Abstract Only)
Heilman, P., Ma, L., Malone, R.W. 2005. Field scale water quality management in the us: state of the art 2005. American Water Resources Association Summer Specialty Conference, Institutions for Sustainable Watershed Management: Reconciling Physical and Management Ecology in the Asia-Pacific, Honolulu, Hawaii, June 29, 2005.
Modeling Impacts of Crop Rotations, Tillage and N Management on Crop Productivity and Water Quality Using the Rzwqm-Dssat Hybrid Model - (Abstract Only)
Anapalli, S.S., Ma, L., Malone, R.W., Heilman, P., Ahuja, L.R., Kanwar, R.S., Meade, T.G. 2005. Modeling impacts of crop rotations, tillage and N management on crop productivity and water quality using the RZWQM-DSSAT hybrid model. ASA-CSSA-SSSA Annual Meeting, Salt Lake City, UT. Nov. 6-10, 2005.
Planning for Increasing Irrigation Efficiency in Mexico 1815 - (Proceedings)
Cohen, I.S., Rodriguez, H.M., Heilman, P., Mann, R.S. 2005. Planning for increasing irrigation efficiency in mexico. American Water Resources Association Summer Specialty Conference, Institutions for Sustainable Watershed Management: Reconciling Physical and Management Ecology in the Asia-Pacific, Honolulu, Hawaii, June 27 - 29, 2005.
Assessing Indicators of Rangeland Health with Remote Sensing in Southeast Arizona 1624 - (Proceedings)
Buono, J., Heilman, P., Williams, D., Guertin, D.P. 2005. Assessing indicators of rangeland health with remote sensing in southeast arizona. Proc. Biodiversity and Management of the Madrean Archipelago II Conf., Connecting Mountain Islands and Desert Seas, May 11-14, Tucson, AZ, pp. 508-510.
Nitrate Losses in Subsurface Tile Drainage As Affected by Tillage, Crop Rotations, and Fertilizer Management - (Abstract Only)
Ma, L., Malone, R.W., Saseendran, S.A., Ahuja, L.R., Heilman, P., Kanwar, R.S. 2006. Nitrate losses in subsurface tile drainage as affected by tillage, crop rotations, and fertilizer management. Biological Systems Simulation Group Proceedings. Fort Collins, CO. April 11-13, 2006.
An Invitation to Participate in a North American Sediment-Monitoring Network 1709 - (Peer Reviewed Journal)
Osterkamp, W.R., Heilman, P., Gray, J.R., 2004. An invitation to participate in a North American sediment-monitoring network. EOS, Trans. Am. Geophysical Union, 85(40):386-388.
A Graphical Tool for Water Quality Conservation Planning 1718 - (Proceedings)
Heilman, P., Armendariz, G.A., Ma, L., Malone, R.W. 2004. A graphical tool for water quality conservation planning. Proc. 13th Internat'l. Soil Conservation Org. Conf., Conserving Soil and Water for Soc.: Sharing Solutions, July 2004, Brisbane, Australia, 6 p.
Working Smarter: Research and Decision Support Systems in Mexican Agriculture 1628 - (Book / Chapter)
Heilman, P., Stone, J.J., Sanchez-Cohen, I., Rodriquez, H., Mann, R. 2004. Working smarter: Research and decision support systems in mexican agriculture In: C. Richardson and A. Baez editors. Modeling And Remote Sensing Applied To Agriculture (U.S. And Mexico). Texas A and M Press. College Station, TX. p. 212-236.
Agricultural Management Effects on Crop Production and N Losses to Tile Drainage in the Nashua Study: Simulation Results with Rzwqm - (Abstract Only)
Ma, L., Malone, R.W., Heilman, P., Anapalli, S., Ahuja, L.R., Kanwar, R.S. 2004. Agricultural management effects on crop production and n losses to tile drainage in the nashua study: simulation results with rzwqm. International Workshop on applications, enhancements and collaborations of ARS RZWQM and GPFARM. April 20-22, 2004. Fort Collins. pp. 14-15.
Information Technology in Watershed Management Decision Making 1421 - (Peer Reviewed Journal)
Miller, R., Heilman, P., Guertin, D.P. 2004. Information technology in watershed management decision making. Journal Amrican Water Resources Association 40(2): 347-357.
Rangeland Monitoring and Prediction at Ranch to Regional Scales 1614 - (Proceedings)
Moran, M.S., Thoma, D., Hernandez, M., Heilman, P., Stone, J.J., Starks, P.J., Arnold, J.G., Kiniry, J.R., Richardson, C.W., Rango, A., Herrick, J.E., Peters, D.C., Havstad, K.M. 2004. Rangeland monitoring and prediction at ranch to regional scales. Proceedings Society for Range Management Meeting, Jan. 23-30, 2004. Salt Lake City, UT. p. 1.
Watershed Planning with the Facilitator Decision Support System 1550 - (Proceedings)
Proc. 1st Interagency Conf. on Research in the Watersheds, Oct. 27-30, Benson, AZ, p.37
An Internet-Based Spatial Decision Support System for Rangeland Watershed Management 1523 - (Proceedings)
Miller, R., Guertin, D.P., Heilman, P. 2003. An internet-based spatial decision support system for rangeland watershed management. Proceedings First Interagency Conference on Research in the Watersheds. Oct. 27-30, 2003, Benson, AZ., pp. 725-730.
The Facilitator-An Open Source Effort to Support Multiobjective Decision Making 1409 - (Proceedings)
Heilman, P., Davis, G., Lawrence, P., Hatfield, J., Huddleston, J. 2003. The facilitator-an open source effort to support multiobjective decision making. Proc. 1st Biennial Meeting of the Internat'l. Environ. Modelling and Software Soc. 3:253-258.
Calculating the Cost of Reducing Erosion from a Small Rangeland Watershed 1513 - (Proceedings)
Heilman, P., Duan, Y., Miller, R., Guertin, D.P. 2003. Calculating the cost of reducing erosion from a small rangeland watershed. Proceedings First Interagency Conference on Research in the Watersheds. Oct. 27-30, 2003, Benson, AZ., pp. 398-404.
Effective Delivery of Geospatial Information to Range Managers 1469 - (Abstract Only)
Biedenbender, S.H., Marsett, R.C., Heilman, P., Qi, J. 2003. Effective delivery of geospatial information to range managers. Ecological Soc. of Am. and Soc. for Ecological Restoration Annual Meeting, Aug. 4-9, Tucson, AZ, Oral Presentation Abstracts, p. 320.
Estimating Total Rangeland Vegetation Biomass with Landsat Imagery 1471 - (Other)
Marsett, R.C., Biedenbender, S.H., Heilman, P., Qi, J., Wallace, O. 2002. Estimating total rangeland vegetation biomass with landsat imagery. Proc. 3rd Internat'l. Conf. on Geospatial Information in Agriculture and Forestry, Nov. 5-7, Denver, CO, Oral Presentation Abstracts.
Geospatial Range Management Tools 1470 - (Abstract Only)
Marsett, R.C., Qi, J., Biedenbender, S.H., Heilman, P., Wallace, O., Wang, C. 2002. Geospatial range management tools. Ecological Soc. of Am. and Soc. for Ecological Restoration Annual Meeting, Aug. 4-9, Tucson, AZ, Oral Presentation Abstracts, p. 202.
Assessment of the Water Quality Impacts of Farming Systems by Integrating Databases and Simulation Models - (Abstract Only) - (23-May-02)
How Good Is Good Enough? What Information Is Needed for Agricultural Water Quality Planning and How Can It Be Provided Most Affordably? 1348 - (Peer Reviewed Journal) - (15-Feb-02)
Coupling a Grassland Ecosystem Model with Landsat Imagery for a 10-Year Simulation of Carbon and Water Budgets 1384 - (Peer Reviewed Journal)
Nouvellon, Y., Moran, M.S., Lo Seen, D., Bryant, R., Ni, W., Beque, A., Chehbouni, A., Emmerich, W.E., Heilman, P., Qi, J. 2001. Coupling a grassland ecosystem model with Landsat imagery for a 10-year simulation of carbon and water budgets. Remote Sensing of Environment. 78:131-149.
Range Space: a Comprehensive Approach for Regional Rangeland Management 1385 - (Abstract Only)
Moran, M.S., Orr, B., Qi, J., Heilman, P. 2001. Range space: a comprehensive approach for regional rangeland. [abstract]. Am. Soc. of Agron., Annual Meetings, Charlotte, NC, Oct. 8-12, 2001.
Rangespace: a Precision Approach for Natural Resource Management on Southwestern Rangelands - (Abstract Only)
Moran, M.S., Orr, B., Qi, J., Heilman, P. 2001. Rangespace: a precision approach for natural resource management on southwestern rangelands. Proc. Am. Water Resour. Assoc. Annual Water Resour. Conf., Nov. 12-15, Albuquerque, NM, p. 47.
Linking Intensive Monitoring Sites to Conservation Planning 1231 - (Proceedings) - (15-Jun-01)
Management Considerations for a Continental-Scale Sediment-Monitoring Program 1232 - (Proceedings) - (17-Nov-00)
Management Considerations for a Continental-Scale Sediment Monitoring Program 1232 - (Abstract Only) - (17-Nov-00)
Rangeland Vegetation Cover Estimating from Remotely Sensed Data 1288 - (Proceedings) - (08-Oct-99)
Combining a Svat Model with Landsat Imagery for a Ten Year Simulation of Grassland Carbon and Water Budget - (Proceedings) - (07-Oct-99)
Linking Intensive Monitoring Sites to Conservation Planning 1231 - (Abstract Only) - (28-May-99)
The Potential for Cooperation on Range Research in the Southwestern Us and Northern Mexico to Support Conservation Planning 1227 - (Peer Reviewed Journal) - (14-Mar-99)
Economic Considerations of a Continental Sediment-Monitoring Program 1010 - (Peer Reviewed Journal) - (05-Dec-98)
Commercial Livestock Operations in Arizona; Aspects of Cattle Ranching in Arizona 1226 - (Book / Chapter) - (01-Sep-98)
Using Measured Data and Expert Opinion in a Multiple Objective Decision Support System for Semiarid Rangelands 1127 - (Peer Reviewed Journal) - (08-Aug-97)
Use of a Dss for Evaluating Land Management System Effects on Tepetate Lands in Central Mexico - (Proceedings) - (23-Sep-96)
Quantifying Economic Incentives Needed for Control of Nonpoint Source Pollution in Agriculture - (Proceedings) - (14-Jul-96)
Last Modified: 3/15/2012