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Subjects of Investigation
ALMANAC Simulation Model
ALMANAC Applications
Rangeland Research
Poultry Litter Application
Wheat Study 2003
Corn Fertility Study
Impact of Biological Control Agents on Musk Thistle Populations
MANAGE Nutrient Loss Database
Hydrologic Data Collection and Water Quality Sampling
Reprints Relevant to ALMANAC
Almanac Switchgrass
ALMANAC - Forestry Simulation
ALMANAC - Switchgrass Field Research Simulation
ALMANAC -Biofuel grass nutrient cycling
ALMANAC - Rangeland CEAP
Publications on Riesel Data and History
Hydrologic Data
Models
Atmospheric CO2 Research Group
 
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Agricultural Policy/Environmental eXtender

CONTACTS

Jimmy Williams Hydraulic Engineer TAES (254) 774-6124
Avery Meinardus Computer Assistant TAES (254) 774-6110

MODEL OBJECTIVE

To provide a tool for managing whole farms or small watersheds to obtain maximum production efficiency and maintain environmental quality.

MODEL COMPONENTS

  • Subarea--Epic
    • Hydrology
    • Weather
    • Erosion(water and wind)
    • N and P cycling
    • Pesticide fate
    • Soil temperature,
    • Plant growth
    • Tillage
    • Plant environmental control
    • Economics.
  • Routing
    • Overland flow
    • Channels
    • Flood plains
    • Water
    • Sediment
    • Nutrients
    • Pesticides

MODEL OPERATION

  • Farm or watershed may be divided into several (<100)subareas or fields
  • Daily time step - long term simulations (1-4000 yrs)
  • Soil, weather, tillage and crop parameter data supplied with model
  • Soil profile can be divided into thirty layers
  • Homogeneous subareas
  • Weather generation is optional

    MANAGEMENT CAPABILITIES

    Whole farm - - routing allows evaluation of interactions between fields (surface run-on, sediment deposition and degradation, nutrient and pesticide transport, and subsurface flow).

    Examples: terrace systems, grass waterways, strip cropping, buffer strips, crop rotations, fertilizer, irrigation, liming, furrow diking, drainage, waste management (feed yards, dairies with or without lagoons)


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    Last Modified: 05/19/2006
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