alexa Application of SWAT and APEX models for Upper Maquoketa River Watershed in Northeast Iowa
Agri and Aquaculture

Agri and Aquaculture

Journal of Fertilizers & Pesticides

Author(s): A Saleh, PW Gassman, J Abraham, J Rodecap

Abstract Share this page

The watershed-scale SWAT (Soil and Water Assessment Tool) and field-scale APEX (Agricultural Policy/Environmental eXtender) models were used to estimate flow and nitrate N (NO3-N) loads within the Upper Maquoketa River Watershed (UMRW). The UMRW is highly impacted by swine, cattle, and dairy operations. A GIS interface was used to generate much of the required data for the models. Simulation of manure applications at the field-scale was performed using APEX. The predicted flow and NO3-N loading from the manure application fields were then input into SWAT as direct point sources. The predicted flow and NO3-N loading obtained from SWAT were compared with measured flow and NO3-N data from four monitoring sites within the UMRW. Considering the size and variation of land use, land cover, geology, and soils within the UMRW, the predicted flow and NO3-N loading by SWAT fell reasonably well within the range of measured values.

  • To read the full article Visit
  • Subscription
This article was published in The American Society of Agricultural and Biological Engineers and referenced in Journal of Fertilizers & Pesticides

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords