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Root Zone Water Quality Model 2 (RZWQM2) is a whole-system model for studying crop production and environmental quality under current and changing climate conditions. It emphasizes the effects of agricultural management practices on physical, chemical and biological processes. RZWQM2 is a one-dimensional model with a pseudo 2-dimensional drainage flow. Crop simulation options include the generic plant growth model, DSSAT-CSM 4.0 and HERMES SUCROS models. It also can simulate surface energy balance with components from the SHAW model and water erosion from the GLEAMS model. An automated parameter estimation algorithm (PEST) was added to RZWQM2 for objective model calibration and uncertainty analysis.

Dataset Info

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USDA Agricultural Research Service
Product Type
United States Department of Agriculture
Contact Name
Derner, Justin
Contact Email
Public Access Level
Primary Article

Wang, Z., Qi, Z., Xue, L., & Bukovsky, M. (2016). RZWQM2 simulated management practices to mitigate climate change impacts on nitrogen losses and corn production. Environmental Modelling & Software, 84, 99-111.

AgID: 5314213
Funding Source(s)
Agricultural Research Service
Program Code
005:037 - Department of Agriculture - Research and Education
Bureau Code
005:18 - Agricultural Research Service
Modified Date
Release Date
Ag Data Commons Keywords: 
  • Plants & Crops
  • Crop production
  • Cropping system
  • Plants & Crops
  • Crop production
  • Plants & Crops
ISO Topic(s):