EcoService Models Library (ESML)

Document: Agricultural Policy/Environmental eXtender Model User's Manual Version 1501 (Doc-357)

357
Authors
Steglich, E. M., J. Jeong and J. R. Williams
Year
2016
Title
Agricultural Policy/Environmental eXtender Model User's Manual Version 1501
Document Type
Report
Place Published
Temple, TX
Publisher
Natural Resources Conservation Service
Abstract
APEX is a tool for managing whole farms or small watersheds to obtain sustainable production efficiency and maintain environmental quality. APEX operates on a daily time step and is capable of performing long term simulations (1-4000 years) at the whole farm or small watershed level. The watershed may be divided into many homogeneous (soils, land use, topography, etc.) subareas (<4000). The routing component simulates flow from one subarea to another through channels and flood plains to the watershed outlet and transports sediment, nutrients, and pesticides. This allows evaluation of interactions between fields in respect to surface run-on, sediment deposition and degradation, nutrient and pesticide transport and subsurface flow. Effects of terrace systems, grass waterways, strip cropping, buffer strips/vegetated filter strips, crop rotations, plant competition, plant burning, grazing patterns of multiple herds, fertilizer, irrigation, liming, furrow diking, drainage systems, and manure management (feed yards and dairies with or without lagoons) can be simulated and assessed.
URL Exit
https://epicapex.tamu.edu/manuals-and-publications/
EMs citing this document as a source
EM-592
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