Comparative analysis of field-saturated soil hydraulic conductivity (K?s) estimates from five pedotransfer models
Date
6-2016
Degree
Bachelor of Science in Agricultural and Biosystems Engineering
Major Course
Major in Land & Water Resources Engineering
College
College of Engineering and Agro-Industrial Technology (CEAT)
Adviser/Committee Chair
Maurice A. Duka
Restrictions
Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.
Abstract
The performance and applicability of five pedotransfer models used in estimating field-saturated soil hydraulic conductivity (Kfs) were compared and evaluated for soils with different textural classes: silt loam, sandy loam, clay loam and silty clay loam. These models include Wu, Bargello, Nimmo, Simplified Falling Head and Beerkan Estimates of Soil Transfer parameters (BEST) model. Results highlighted that the differences among the Kfs estimates given by each model are mainly attributed to four inherent factors: (1) the Kfs calculation method, the parameters used, and the governing theories and principles involved in predicitng Kfs of soils, (2) the effect of α* and λ parameters in the estimates obtained, (3) the effect of soil heterogeneity in the variability of Kfs estimates and (4) the effect of experimental procedures and the duration of the experiment in the estimation of Kfs. Each model, however, was able to provide reasonable, sound and promising Kfs estimates. This suggests that one model cannot be used to overthrow another and that various soil physical and field conditions need to be throughly examined along with the application of these models.
Language
English
Location
UPLB College of Engineering and Agro-Industrial Technology (CEAT)
Call Number
LG 993.5 2016 A2 /S23
Recommended Citation
Sadsad, Jeric S., "Comparative analysis of field-saturated soil hydraulic conductivity (K?s) estimates from five pedotransfer models" (2016). Undergraduate Theses. 4693.
https://www.ukdr.uplb.edu.ph/etd-undergrad/4693
Document Type
Thesis