Hydrology and Remote Sensing Laboratory Site Logo
ARS Home About Us Helptop nav spacerContact Us En Espanoltop nav spacer
Printable VersionPrintable Version     E-mail this pageE-mail this page
Agricultural Research Service United States Department of Agriculture
Search
  Advanced Search
Research Scientists
Scientific Support Staff
Visiting Scientists / Post Docs / Cooperators
 

Timothy John. Gish

Soil Scientist

photo of Tim Gish 

 


Timothy J. Gish, Ph.D.
Soil Physicist
USDA-ARS Hydrology and Remote Sensing Laboratory
104 Bldg. 007, BARC-West
Beltsville, MD 20705-2350 USA
Voice: (301) 504-8378
Fax: (301) 504-8931
Timothy.Gish@ars.usda.gov






Research Interests: (click here to see a list of current research projects)


Education:

  • 1975 B.S. (Soil Science) Brigham Young University, Provo, UT.
  • 1981 Ph.D. (Soil Physics) University of California, Riverside, Riverside, CA.

Professional Experience:

  • 1976 - 1981: Graduate Research Assistantship, University of California, Riverside, CA.
  • 1981: Post-Doctorate, University of California, Riverside, CA.
  • 1981 - Present: Soil Scientist, USDA-ARS Hydrology and Remote Sensing Laboratory, Beltsville, MD.

Selected Publications: (please contact the author to determine reprint availability)

(view author's publications/interpretive summaries/technical abstracts since 1999)

Gish, T. J., and W. A. Jury. 1983. Effect of plant roots and root channels on solute transport. Trans. of Am. Soc. Agric. Eng. 26(2):440-444 & 451.

Heggestad, H.E., T.J. Gish, E.H. Lee, J.H. Bennett, and L.W. Douglass. 1984. Interaction of soil moisture stres and ambient Ozone on growth yields of soybeans. Phytopathology 75:472-477.

Gish, T. J., W. Zhaung, C.S. Helling, and P.C. Kearney. 1986. Chemical transport under no-till conditions. Geoderma 38:251-259.

Gish, T. J. and C. B. Coffman. 1987. Solute transport under no-till field corn. Trans. Am. Soc. Agric. Eng. 30(5):1358-1363.

Heggestad, H. E., E. L. Anderson, T. J. Gish, and E. H. Lee. 1988. Effects of ozone and soil water deficit on roots and shoots of field-grown soybeans. Environ. Pollution 259-278.

Isensee, A. R., C. S. Helling, T. J. Gish, P. C. Kearney, C. B. Coffman, and W. Zhaung. 1988. Groundwater residues of atrazine, alachlor, and cyanazine under no-tillage practices. Chemosphere 17:165-174.

Helling, C. S., W. Zhaung, T. J. Gish. C. B. Coffman, A. R. Isensee, P. C. Kearney, D. R. Hoagland, and M. D. Woodward. 1988. Persistence and leaching of atrazine, alachlor, and cyanazine under no-tillage practices. Chemosphere 17:175-187.

Drungil, C. E. C., K. Abt, and T. J. Gish. 1989. Soil Moisture determination in gravelly soils with time domain reflectometry. Transactions Am. Soc. Agric. Eng. 32:177-180.

Gish, T. J. and M. J. Schoppet. Ion chromatography: A tool in shallow groundwater research. 1989. In Advances in Ion Chromatography. Eds. P. Jandik and R. M. Cassisdy. pp 229-246.

Nash, R. G., and T. J. Gish. 1989. Halogenated pesticide volatilization and dissipation from soil under controlled conditions. Chemosphere 18:2353-2362.

Gish, T. G., C. S. Helling, and M. Mojasevic. 1991. Preferential movement of atrazine and cyanazine under field conditions. Trans. Am. Soc. Agric. Eng. 34:1699-1705.

Wienhold, B. J. and T. J. Gish. 1991. Enzymatic pretreatment for extraction of starch encapsulated pesticides from soil. Weed Sci. 39:423-426.

Gish, T. J., M. J. Schoppet, C. S. Helling, A. Shirmohammadi, M. M. Schreiber, and R. E. Wing. 1991. Transport comparison of technical grade and starch-encapsulated atrazine. Trans. Am. Soc. Agric. Eng. 34:1738-1744.

Rawls, W. J., T. J. Gish, and D. L. Brakensiek. 1991. Estimating soil water retention from soil physical properties and characteristics. Adv. in Soil Sci. 16:213-230.

Gish, T. J., A. R. Isensee, R. G. Nash, and C. S. Helling. 1991. Impact of preferential transport on water quality. Trans. Am. Soc. Agric. Eng. 34:1745-1753.

Gish , T. J. and A. Shirmohammadi (editors). 1991. Preferential Flow. ASAE publication. 408pp.

Wienhold, B. J. and T. J. Gish. 1992. Effect of water potential, temperature and soil microbial activity on release of starch encapsulated atrazine and alachlor. J. Environ. Qual. 21:382-386.

Mojaševi , M., C. S. Helling, T. J. Gish, and I. S. Gojkovi . 1992. Pokretljivost pesticida u zemljištu (III) Distribucija etoprofosa, karbofurana, atrazina, metribuzina i cijanazina u praškastoj ilova i. Pesticidi 7:125-144.

Wienhold, B. J., A. M. Sadeghi, and T. J. Gish. 1993. Effect of starch encapsulation and temperature on volatilization of atrazine and alachlor. J. Environ. Qual. 22:162-166.

Gish, T. J. and A. Sadeghi. 1993. Agricultural water quality priorities: A symposium overview. J. Environ. Qual. 22:389-391.

Wienhold, B. J., and T. J. Gish. 1994. Effect of Formulation and tillage practice on volatilization of atrazine and alachlor. J. Environ. Qual. 23:292-298.

Gish, T. J., A. Shirmohammadi, and B. J. Wienhold. 1994. Field-scale mobility and persistence of commercial and starch-encapsulated atrazine and alachlor. J. Environ. Qual. 23:355-359.

Wienhold, B. J. and T. J. Gish. 1994. Chemical properties influencing rate of release of starch encapsulated herbicides: implications for modifying environmental fate. Chemosphere 28:1035-1046.

Gish, T. J., A. Shirmohammadi, L. McKee, B. J. Wienhold, and R. Vyravipillai. 1995. Herbicides leaching under Tilled and no-tillage fields. Soil Sci. Soc. Am. J. 59:895-901.

Gish, T. J., A. Sadeghi, B. J. Wienhold. 1995. Volatilization of alachlor and atrazine as influenced by surface litter. Chemosphere 31:2971-2982.

Mojasevic, M., C. S. Helling, T. J. Gish, and M.A. Doherty. 1996. Persistence of seven pesticides as influenced by soil moisture. J. Environ. Sci. Health 31:569-476.

Gish, T. J., A. Shirmohammadi, C.S. Helling, K.-J.S. Kung, B.J. Wienhold, and W. J. Rawls. 1997. Mechanisms of herbicide leaching and volatilization and innovative approaches for sampling, prediction, and control. In Integrated Weed and Soil Management. Eds. J.L. Hatfield, and B.A. Stewart. Ann Arbor Press, Chelesa, Michigan. pp. 107-134.

Gish, T.J., D. Gimenez, and W.J. Rawls. Impact of roots on ground water quality. (In Press, Plant and Soil).

Gish, T. J., Nelson, S. D., Rouhi, A. and Kung, K.-J. S. 1998. Differentiating preferential and matrix flow components in a fiberglass wick lysimeter. Agronomy A-1:186.

Dulaney, W. P., Gish, T. J. and Daughtry, C. S. T. 1998. Use of ground-penetrating radar to determine field-scale subsurface flow characteristics. Agronomy A-1:37.

Dulaney, W. P., Gish, T. J., Daughtry, C. S. T., Doolittle, J. A., Miller P. T. And Kung, K.-J.S. 1999. Determination of Subsurface Flow Characteristics For The Installation of Groundwater Samplers. 4th Precision Ag. Conf. 1:383-394.

William, C., Williams, F., Nelson, S. D. and Gish, T. J. 1999. Release rate and leaching of starch-encapsulated atrazine in a calcareous soil. Soil Sci. Soc. Am. J. 63:425-432.



logo for the Hydrology and Remote Sensing Laboratory 


     
Last Modified: 10/16/2007
ARS Home | USDA.gov | Site Map | Policies and Links 
FOIA | Accessibility Statement | Privacy Policy | Nondiscrimination Statement | Information Quality | USA.gov | White House