TAILIEUCHUNG - Field measured furrow infiltration functions

This research was conducted to develop empirical relationships between field-wide furrow infiltration and independent variables such as the opportunity time, initial soil water content, flow depth, flow section area, wetted perimeter and wet bulk density. | Turk J Agric For 28 (2004) 93-99 © TÜB‹TAK Field-Measured Furrow Infiltration Functions Abolfazl NASSERI*, Mohammad Reza NEYSHABORI, Ahmad FAKHERI FARD, Mohammad MOGADDAM, Amir Hossein NAZEMI Department of Irrigation, Faculty of Agriculture, Tabriz University, 51664 - IRAN Received: Abstract: Furrow infiltration varies with different variables and is a complex process for modeling infiltration over the field. This research was conducted to develop empirical relationships between field-wide furrow infiltration and independent variables such as the opportunity time, initial soil water content, flow depth, flow section area, wetted perimeter and wet bulk density. Furrow infiltration was measured by blocked furrow infiltrometers at 48 infiltration sites over a 70 x 130 m field plot. Simple and partial correlations between cumulative infiltration and independent variables were evaluated. The effects of wet bulk density and flow depth on cumulative infiltration were insignificant when the effects of all other variables were removed. However, the effects of other variables such as the opportunity time, wetted perimeter, flow section area and initial soil water content on cumulative infiltration were significant. The results showed that % of the variation in cumulative infiltration could be explained by the opportunity time when the other variables were held constant. To describe the field-wide cumulative infiltration as a function of independent variables a model was developed by using least squares regression. Key Words: Infiltration functions, Infiltration, Furrow irrigation. Tarla Koflullar›nda Ölçülmüfl Kar›k ‹nfiltrasyon Fonksiyonlar› Özet: Kar›k infiltrasyonu farkl› de¤iflkenlerin etkisiyle de¤iflir ve tüm tarla yüzey için infiltrasyonun modellenmesi çok karmafl›k bir ifllemdir. Bu çal›flma, tüm tarlay› temsil eden kar›k infiltrasyonu ile infiltrasyon süresi, bafllang›ç toprak suyu kapsam›, ak›m derinli¤i, ak›m kesit alan›, ›slak çevre ve hacim

• Nông nghiệp
• Infiltration functions
• Furrow irrigation
• Wetted perimeter
• Wet bulk density
• Initial soil water content
• BMC Cancer
• Immune infiltration
• Molecular functions
• Cadherin 23
• Intercellular adhesion
• Biological functions