Laosheng Wu

Publications

• Yu, J., S. R. Zhan, L. Wu, and Z.X. Zhu. 1986. The magnetic susceptibility of soils in tropical and subtropical China. Acta Pedologic Sinica. 23: 50-56.
• Wu, L., J.A. Vomocil, and S.W. Childs. 1990. Particle size, aggregate size, pore size, and water retention. Soil Sci. Soc. Am. J. 54: 952-956.
• Logsdon, S.D., R.R. Allmaras, L. Wu, and J.B. Swan. 1990. Macroporosity and its relation to saturated hydraulic conductivity under different tillage practices. Soil Sci. Soc. Am. J. 54: 1096-1101.
• Wu, L., J.B. Swan, W.H. Paulson, and G.W. Randall. 1992. Tillage effects on measured hydraulic properties. Soil & Tillage Research. 25: 17-33.
• Wu, L., J.B. Swan, J.L. Nieber, and R.R. Allmaras. 1993. Soil-macropore and layer influences on saturated hydraulic conductivity measured with borehole permeameters. Soil Sci. Soc. Am. J. 57: 17-923.
• Wu, L., J.B. Swan, R.R. Allmaras and S.D. Logsdon. 1995. Tillage and traffic influences on water and solute transport in corn-soybean systems. Soil Sci. Soc. Am. J. 59: 185-191.
• Wu, L., J.M. Baker, and R.R. Allmaras. 1995. Numerical and field evaluation of soil water sampled by suction lysimeters. J. of Environ. Quality. 24: 147-152.
• Wu, L., R.R. Allmaras, J. B. Lamb, and K. E. Johnsen. 1996. Model sensitivity to measured and estimated hydraulic properties of a Zimmerman fine sand. Soil Sci. Soc. Am. J. 60: 1283-1290.
• Wu, L., W. A. Jury, A.C. Chang, and R.R. Allmaras. 1997. Time-series analysis of field-measured water content of a sandy soil. Soil Sci. Soc. Am. J. 61: 736-742.
• Pang, X. J. Letey, and L. Wu. 1997. Yield and nitrogen uptake prediction by CERES-Maize model under semiarid conditions. Soil Sci. Soc. Am. J. 61: 254-256.
• Pang, X. J. Letey, and L. Wu. 1997. Irrigation quantity and uniformity and nitrogen application effects on crop yield and nitrogen leaching. Soil Sci. Soc. Am. J. 61: 257-261.
• Wu, L. and L. Pan. 1997. A generalized solution to infiltration from single-ring infiltrometers by scaling. Soil Sci. Soc. Am. J. 61: 1318-1322.
• Wu, L., R.R. Allmaras, D. Gimenez, and D.M. Huggins. 1997. Shrinkage and water retention characteristic in a fine-textured Mollisol compacted under different axle loads. Soil & Tillage Res. 44: 179-194.
• Wu, L., L. Pan, M. J. Roberson, and P. J. Shouse. 1997. Numerical evaluation of ring-infiltrometers under various soil conditions. Soil Sci. 162: 771-777.
• Pan, L. and L. Wu. 1998. A hybrid global optimization method for inverse estimation of hydraulic parameters: Annealing-Simplex method. Water Resour. Res. 34: 2261-2269.
• Flury, M., Q. J. Wu, L. Wu, and L. Xu. 1998. Analytical solution for solute transport with depth-dependent transformation or sorption coefficients. Water Resour. Res. 34: 2931-2937.
• Wu, L., W. Chen, J. M. Baker, and J. B. Lamb. 1999. Evaluation of the Root Zone Water Quality Model using field measured data from a sandy soil. Agron. J. 91: 177-182.
• Wu, L., L. Pan, J. Mitchell, B. Sanden. 1999. Measuring saturated hydraulic conductivity using a generalized solution for single-ring infiltrometers. Soil Sci. Soc. Am. J. 63: 788-792.
• Wang, Z., L. Wu, and Q. J. Wu, 2000. Water-entry value as an indicator of soil water repellency and wettability. Journal of Hydrology. 231-232: 76-83.
• Wang, Z., Q.J. Wu, L. Wu, C.J. Ritsema, L.W. Dekker, and J. Feyen, 2000. Effects of soil water repellency on infiltration rate and flow instability. Journal of Hydrology. 231-232: 265-276.
• Leung, S., L. Wu, J. Mitchell, and B. Sanden. 2000. Nitrate leaching and soil nitrate content as affected by irrigation uniformity in a carrot field. Agri. Water Management. 48:37-50.
• Mitchell, J. P., S.E. Allaire-Lueng, J. B. Sanden, L. Wu. 2000. Sprinkler spacing does not affect carrot Yield and Quality. HortTechnology. 10: 370-373.
• Feng, G., J. Letey, L. Wu. 2001. Water ponding depths affect temporal infiltration rates in a water-repellent sand. Soil Sci. Soc. Am. J. 65: 315-320.
• Green, R. L., L. Wu, and G. Klin. 2001. Summer cultivation increases field infiltration rates of water and reduces soil electrical conductivity on annual bluegrass putting greens. HortScience. 36: 776-779.
• Wu, L. T. Skaggs, P. Shouse, and J. Ayas. 2001. State space analysis of soil water and salinity regimes in a loam soil underlain by shallow groundwater. Soil Sci. Soc. Am. J. 65: 1065-1074.
• Lu, J. H. and L. Wu. 2001. Spectrophotometric determination of polyacrylamide in waters containing dissolved organic matter. J. Agri. and Food Chemistry. 49: 4177-4182.
• Lu, J. H., L. Wu, and J. Letey. 2002. Effects of Soil and Water Properties on Anionic Polyacrylamide Sorption. Soil Sci. Soc. Am. J. 66: 578-584.
• Wu, L. R.L. Green, G. Liu, M. V. Yates, P. Pacheco, J. Gan, and S. R. Yates. 2002. Partitioning and Persistence of Trichlorfon and Chlorpyrifos in a Creeping Bentgrass Putting Green. J. Environ. Quality. 31: 889-895.
• Wu, L., G. Liu, M. V. Yates, R. Green, P. Pacheco, J. Gan, and S. R. Yates. 2002. Environmental Fate of Metalaxyl and Chlorothalonil Applied on a Bentgrass Putting Green under Southern California Climate. Pest Management Sci. 58: 335-342.
• G. Liu, L. Wu, J. Zhang, Y. Li. 2002. Four Pesticides Partitioning features in turf grass and comparison between two simulation models. ACTA Scientiae Circumstantiae. 22: 261-266.
• Zhi, Wang, J. Lu, L. Wu, T, Harter, W. A. Jury. 2002. Visualizing preferential flow paths using ammonium carbonate and a pH indicator. Soil Sci. Soc. Am. J. 66: 347-351.
• G. L. Feng, J. Letey, L. Wu. 2002. The influence of two surfactants on infiltration into a water-repellent soil. Soil Sci. Soc. Am. J. 66: 361-367.
• Lu, J., Laosheng Wu, John Letey, and Walter J. Farmer. 2002. Anionic Polyacrylamide Effects on Soil Sorption and Desorption of Metolachlor, Atrazine, 2,4-D, and Picloram. J Environ Qual. 31: 1226-1233.
• Lu, J., Laosheng Wu, John Letey, and Walter J. Farmer. 2002. Picloram and Napropamide Sorption as Affected by Polymer Addition and Salt Concentration. J Environ Qual. 31: 1234-1239.
• Lu, J. and L. Wu. 2002. Spectrophotometric determination of substrate-borne polyacrylamide. J. Food & Agri. Chem. 50: 5038-5041.
• G. L. Feng, L. Wu, and J. Letey. 2002. Evaluating aeration criteria by simultaneous measurement of oxygen diffusion rate and soil-water regime. Soil Sci. 167: 495-503.
• Zhi Wang, L. Wu, T. Harter, J. Lu, and W. A. Jury. 2002. A Field Study of Unstable Preferential Flow during Soil Water Redistribution. Water Resour. Res. (Accepted on 6/4/02. 40 manuscript pages).
• J.L. Johnson-Maynard, R.C. Graham, L. Wu, and P.J. Shouse. 2002. Modification of soil structural and hydraulic properties after 50 years of imposed chaparral and pine vegetation. Geoderma. 110: 227-240.
• Lu, J. and L. Wu. 2002. Visualizing Br- tracer in preferential flow study. J. Environ. Qual. 32: 363-367.
• Lu, J. and L. Wu. 2003. Polyacrylamide distribution in columns of organic mater removed soils following surface application. J. Environ. Qual. 32: 674-680.
• Wang, Z., A. C. Chang, L. Wu, and D. Crowley. 2003. Assessing the soil quality of long-term reclaimed wastewater-irrigated cropland. Geoderma. 114: 261-278.
• Wu, L., G. Feng, J. Letey, L. Ferguson, J. Mitchell, B. Sanden, and G. Markegard. 2003. Soil management effects on the nonlimiting water range. Geoderma. 114: 401-414.
• Lu, J., L. Wu, and J. Gan. 2003. Determination of Polyacrylamide in Soil Waters by Size Exclusion Chromatography. J. Environ. Qual. 32: 1922-1926.
• Lu, J. and L. Wu. 2003. Polyacrylamide Quantification Methods in Soil Conservation Studies. J. Soil Water Conservation. 58: 270-275.
• Pan, G., L. Li, L. Wu, and X. Zhang. 2003. Storage and sequestration potential of topsoil organic carbon in China's paddy soils. Global Change Biology. 10: 79-92.
• Li, H. and L. Wu. 2004. On the relationship between thermal diffusion and molecular interaction energy in binary mixtures. J. Physical Chemistry. 108: 13821-13826.
• Lu, J., A. C. Chang, and L. Wu. 2004. Distinguishing sources of groundwater nitrate by 1H NMR of dissolved organic matter. Environ. Pollution. 132: 365-374.
• Wu, L., J. Letey, C. French, Y. Wood, and D. Birkle. 2005. Nitrate leaching index for irrigated agriculture. J. of Soil & Water Conservation. 60: 90A-95A.
• Lu, and L. Wu. 2005. Technical details and programming guide for a general two-way positive matrix factorization algorithm. J. of Chemometrics. 18: 519-525.
• French, C., L. Wu, T. Meixner, D. Haver, J. Kabashima and W. A. Jury. 2006. Modeling nitrogen transport in the Newport Bay/San Diego Creek watershed of Southern California. Agricultural Water Management. 81: 199-215.
• Jianhang Lu PD, Laosheng Wu, Julie Newman AD, Ben Faber AD, and Jianying Gan CL. 2006. Degradation of Pesticides in Nursery Recycling Pond Waters. J. Agri. & Food Chem. 54(7): 2658–2663.
• Ruiz, V.R. ST, and L. Wu. 2006. Influence of Sodicity, Clay Mineralogy, Prewetting Rate, and Their Interaction on Aggregate Stability. Soil Sci. Soc. Am. J. 70: 1825-1833.
• Weiping Chen, Andrew C. Chang, and Laosheng Wu. 2007. Assessing Long-term Environmental Risks of Trace Elements in Phosphate Fertilizers. Ecotoxicol. Environ. Saf. 67: 48-58.
• Weiping Chen, Andrew C. Chang, Laosheng Wu, Lianqing Li, Soon-Ik Kwon, and Albert L. Page. 2007. Probability Distribution of Cd Partitioning Coefficients of Cropland Soils. Soil Sci. 172: 132-140.
• Wood, Y.A., M. Fenn, T. Meixner, P. J. Shouse, J. Breiner, E. Allen, and Laosheng. Wu. 2007. Smog nitrogen and the rapid acidification of forest soil, San Bernardino Mountains, southern California. The Scientific World J. 7: 175-180.
• Yiqiang Zhang, Jianhang Lu, Laosheng Wu, Andrew Chang, and William T. Frankenberger Jr. 2007. Simultaneous Removal of Chlorothalonil and Nitrate by Bacillus cereus Strain NS1. Sci. Total Environ. 383: 383-387.
• Weiping Chen, Lianqing Li, Andrew C. Chang, Laosheng Wu, Soon-Ik Kwon, and Rick Bottoms. 2007. Modeling the uptake kinetics of cadmium by field-grown lettuce. Environ. Pollut., doi:10.1016/j.envpol.2007.05.004.
• Li, Hang and Laosheng Wu. 2007. A generalized linear equation for non-linear diffusion in external fields and non-ideal systems. New J. Phys. 9. 357. doi:10.1088/1367-2630/9/10/357
• Wu, Laosheng, R. Green, M. Yates, P. Pacheco, and G. Klein. 2007. Nitrate Leaching in Overseeded Bermudagrass Fairways in Two Southern California Irrigated Soils. Crop Science. 47: 2521-2528.
• Li, Hang and Laosheng Wu. 2007. A New Approach to Estimate Ion Distribution between the Exchanger Phase and Solution Phase. Soil Sci. Soc. Am. J. 71: 1694-1698.
• Shinsuke Haruta, Weiping Chen, Jay Gan, Jirka Simunek, Andrew Chang, and Laosheng Wu. 2008. Leaching risk of N-nitrosodimethylamine (NDMA) in soil receiving reclaimed wastewater. Ecotoxicol. Environ. Saf. 69: 374–380.
• Chen, W.P., A.C. Chang, L. Wu, and Y.S. Zhang. 2008. Metal Uptake by Corn Grown on Media Treated with Particle-Size Fractionated Biosolids. Sci. Total Environ. 392:166-173.

• Wu, L. 2003. Soil Water Diffusion. In (Stewart and Howell eds.) Encyclopedia of Water Science. Marcel Dekker, Inc. New York. Pp. 865-867.
• Wang, D. and L. Wu. 2003. Ring and Tension Infiltrometers. In (Stewart and Howell eds.) Encyclopedia of Water Science. Marcel Dekker, Inc. New York. Pp. 812-815.

• Sanden, B., J. Mitchell, and L. Wu. 1996. Irrigation uniformity in solid set sprinklers - "What’s up, Doc?!", SJV Vegetable Crops Report, Vol. 2, No. 2.
• Wu, L. 1998. New method developed to measure the vertical infiltration capacity of the soil using single ring infiltrometers. In Soil Water and Irrigation Management. Fall 1998. (2 Newsletter pages)
• Wu, L. 1999. The benefits of the Toro Hydroject 3000 for golf course superintendents. In Soil Water and Irrigation Management. Winter 1999. (2 Newsletter pages)
• Wu, L. 1999. Managing Irrigation and Nitrogen Fertilization to Maximize Productivity and Protect Environmental Quality. In Soil Water and Irrigation Management. Summer 1999. (2 Newsletter pages)
• Wu, L. 2000. TMDLs: A significant change in water quality regulation enforcement. In Soil Water and Irrigation Management. Winter 2000. (4 Newsletter pages)
• Wu, L. 2000. Drip irrigation using low-quality water. In Soil Water and Irrigation Management. Summer 2000. (2 Newsletter pages)
• Wu, L. 2000. How much water is used for landscape irrigation in urban southern California? In Soil Water and Irrigation Management. Summer 2000. (2 Newsletter pages)
• Wu, L. 2000. Drip irrigation using low-quality water (Revised). In Irrigation Journal. pp. 18-20. May/June 2000.

• Wu, L. and J.A. Vomocil. 1992. Predicting water characteristics from aggregate size distribution. In van Genuchten, Leij, and Lund (eds.) Proceedings of the international workshop of " Indirect methods of measuring soil hydraulic properties". p. 139-145. Riverside, CA. 11-13 Oct. 1989. U.S. Salinity Lab., Riverside, CA.
• Wu, L., J.M. Baker, R.R. Allmaras, R.H. Dowdy, J.A. Lamb, and J.L. Anderson. 1993. Infiltration and preferential-flow modeling approaches: A review. In L. Walsh (ed.) Agricultural Research to Protect Water Quality. Proceedings of a National Conference, Minneapolis, MN. 21-24 Feb. 1993. Soil and Water Conservation Soc., Ankeny, IA.
• Wu, L., R. R. Allmaras, S.M. Copeland, and J.A. Lamb. 1993. Infiltration-model sensitivity to measured hydraulic properties of a Zimmerman loamy fine sand. In L. Walsh (ed.) Agricultural Research to Protect Water Quality. Proceedings of a National Conference, Minneapolis, MN. 21-24 Feb. 1993. Soil and Water Conservation Soc., Ankeny, IA.
• Wu., L. and J. M. Baker. 1993. Minnesota Management System Evaluation Area modeling report. In Progress report on collaborative model evaluation, MSEA modeling team and USDA-ARS GPSR. Fort Collins, CO.
• Wu, L. 1994. Designing your irrigation and farming system to efficiently fit soil conditions. In Proceedings of Southwest Agricultural and Landscape Technical Seminars. Desert ExpoCentre, Indio, CA.
• Allmaras, R.R., L. Wu, J.A. Staricka, and S.M. Copeland. 1994. Macroporosity and bypass flow potential as related to tillage and residue management systems. In H.E. Jensen et. al (eds.) Proceedings of 13th International Conference. P.233-237. Aalborg, Denmark.
• Green, R. R. O'Fee, L. Wu, M. Henry, and P. Gross. Managing for Bentgrass summer stress in Southern California. Landscape Management Research Conference. 13 Sept. 1995. Riverside, CA.
• Mitchell, J., L. Wu, and B. Sanden. Effects of irrigation nonuniformity on nitrogen and water use efficiencies in shallow-rooted vegetable cropping systems. Fertilizer Research and Education Program Conference. 16 Oct. 1996. Modesto, CA.
• Roberson, M., A. Fulton, L. Wu, D. Handley, P. Buss, and J. Oster. 1996. Capacitance probe used for cotton irrigation scheduling. In C. R. Camp et al. (eds.) Evapotranspiration and Irrigation Scheduling-proceedings of the International Conference. San Antonio, Texas. Nov. 3-6, 1996. ASAE, St. Joseph, MI. pp. 1109-1114.
• Wu, L., P. Shouse, J. Ayars, L. Xu, and R. Strohman. 1997. Managing shallow groundwater using a modified subsurface drainage system: soil profile salinity response. Salinity/Drainage Program Report.
• Wu, L. 1997. Field evaluation of infiltration rates of InfilTrx solutions. A report to the Aquatrols Company.
• Pan, L. and L. Wu. 1999. Inverse estimation of hydraulic parameters by using simulated Annealing and Downhill Simplex method. In van Genuchten et al. (eds.) Proceedings of the International Conference on "Characterization and measurement of the hydraulic properties of unsaturated porous media". Riverside, CA. Nov. 3-6, 1997. pp. 769-782.
• Wu, L. and D. Shaw. 1999. Measuring physical and hydraulic properties in the field. In D. Shaw (ed.) Proceedings of Arborist and Tree Worker Seminar and Field Day: Program-Abstracts-Notes. (4 pages).
• Wu, L. and J. Kabashima. 2000. Agricultural baseline monitoring and bmp implementation: steps toward meeting TMDL compliance deadlines within the Newport Bay/San Diego Creek watershed. Fertilizer Research and Education Program Conference Proceedings. Tulare, CA. pp.87-93.
• Wu, L., C. French, D. Haver, and J. Kabashima. 2002. Monitoring and mitigating nutrient loading from agricultural operations in the Newport Bay/San Diego Creek watershed. Helping Irrigated Agriculture Adjust to TMDL, United States Committee on Irrigation and Drainage conference. Oct. 23-26. Sacramento, CA.

• Wu, L. 1999. Irrigation systems, uniformity, and efficiency and water conservation. Review of China Agricultural Science and Technology.