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Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1002/ps.789/full Last checked: 01/31/2014 Access conditions: Item is within a limited-access website http://onlinelibrary.wiley.com/doi/10.1002/ps.789/pdf Last checked: 01/31/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Malone, Robert W.;
Ahuja, Lajpat R.;
Ma, Liwang;
Wauchope, R. Don;
Ma, Qingli;
Rojas, Kenneth W. |
Author Affiliation: | Malone: USDA-Agricultural Research Service, National Soil Tilth Laboratory (NSTL), Ames, Iowa; Ahuja, L. Ma, and Rojas: USDA-ARS, Great Plains System Research (GPSR), Fort Collins, Colorado; Wauchope: USDA-ARS, Southeast Watershed Research Laboratory, Tifton, Georgia; and Q. Ma: Environmental and Turf Services, Inc., Wheaton, Maryland |
Title: | Application of the Root Zone Water Quality Model (RZWQM) to pesticide fate and transport: an [An] overview |
Source: | Pest Management Science. Vol. 60, No. 3, March 2004, p. 205-221. |
Publishing Information: | London: for the Society of Chemical Industry by John Wiley & Sons |
# of Pages: | 17 |
Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1002/ps.789/abstract Last checked: 01/31/2014 Notes: Abstract only |
Keywords: | TIC Keywords: Evaluative methods; Models; Pesticide degradation; Pesticide evaluation; Pesticide fate; Root zone; Water quality
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Abstract/Contents: | "Pesticide transport models are tools used to develop improved pesticide management strategies, study pesticide processes under different conditions (management, soils, climates, etc) and illuminate aspects of a system in need of more field or laboratory study. This paper briefly overviews RZWQM history and distinguishing features, overviews key RZWQM components and reviews RZWQM validation studies. RZWQM is a physically based agricultural systems model that includes sub-models to simulate: infiltration, runoff, water distribution and chemical movement in the soil; macropore flow and chemical movement through macropores; evapotranspiration (ET); heat transport; plant growth; organic matter/nitrogen cycling; pesticide processes, chemical transfer to runoff and the effect of agricultural management practices on these processes. Research to date shows that if key input parameters are calibrated, RZWQM can adequately simulate the processes involved with pesticide transport (ET, soil-water content, percolation and runoff, plant growth and pesticide fate). A review of the validation studies revealed that (1) accurate parameterization of restricting soil layers (low permeability horizons) may improve simulated soil-water content; (2) simulating pesticide sorption kinetics may improve simulated soil pesticide concentration with time (persistence) and depth and (3) calibrating the pesticide half-life is generally necessary for accurate pesticide persistence simulations. This overview/review provides insight into the processes involved with RZWQM pesticide component and helps identify model weaknesses, model strengths and successful modeling strategies." |
Language: | English |
References: | 61 |
Note: | Figures Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Malone, R. W., L. R. Ahuja, L. Ma, R. D. Wauchope, Q. Ma, and K. W. Rojas. 2004. Application of the Root Zone Water Quality Model (RZWQM) to pesticide fate and transport: an [An] overview. Pest Manage. Sci. 60(3):p. 205-221. |
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| Web URL(s): http://onlinelibrary.wiley.com/doi/10.1002/ps.789/full Last checked: 01/31/2014 Access conditions: Item is within a limited-access website http://onlinelibrary.wiley.com/doi/10.1002/ps.789/pdf Last checked: 01/31/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: SB 951 .A1 P45 |
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