Verification of nutrient transport modelling of a bison feedlot

KIZIL Ü. , Lindley J. A. , Padmanabhan G.

BIOSYSTEMS ENGINEERING, cilt.94, sa.3, ss.453-460, 2006 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 94 Konu: 3
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.biosystemseng.2006.03.010
  • Sayfa Sayıları: ss.453-460


Runoff from an unpaved bison feedlot was measured for 2 yr. The objective were to determine a runoff curve number, develop a relationship between rainfall and runoff, and evaluate the equations in the Erosion-Productivity Impact Calculator (EPIC) and Agricultural Non-point Source (AGNPS) models for the prediction of runoff nutrient contents from a bison feedlot. A runoff curve number of 93 was determined using rainfall/runoff data. A simple regression equation was developed to estimate runoff as a linear function of rainfall. Organic-N and P were predicted with high correlation coefficients of 0.89 and 0.81, respectively. Results showed that use of EPIC and AGNPS model equations is a promising method for runoff quality/quantity estimation. (c) 2006 IAgrE. All rights reserved Published by Elsevier Ltd.