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Agronomy 2015, 5(3), 464-475; doi:10.3390/agronomy5030464

Differential Evolution’s Application to Estimation of Soil Water Retention Parameters

School of Mathematics and Computer Science, Fujian Normal University, 350117 Fuzhou, China
Academic Editors: Ole Wendroth and Peter Langridge
Received: 11 May 2015 / Revised: 3 August 2015 / Accepted: 14 September 2015 / Published: 18 September 2015
View Full-Text   |   Download PDF [188 KB, uploaded 18 September 2015]

Abstract

A Differential Evolution (DE) is introduced to predict the parameters of the soil water retention curve (SWRC) and it is configured for reliability and efficiency with the Unsaturated Soil Hydraulic Property Database (UNSODA). The main investigated dataset is 235 samples from lab_drying_h-t table and the testing shows that the data resource is reliable and steady. Some specific statistical computations are designed to investigate the convergence speed and the fitness precision of DE, different measurements of hydraulic data, and parametric characteristics of textural groups. The statistical results on UNSODA show that DE has higher performance in parameter fitness and time saving than some previous optimization methods and the statistical values of soil water retention parameters (SWRP) can be directly applied in the agricultural research and practice. View Full-Text
Keywords: van Genuchten model; Differential Evolution; soil water retention parameter; UNSODA van Genuchten model; Differential Evolution; soil water retention parameter; UNSODA
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Ou, Z. Differential Evolution’s Application to Estimation of Soil Water Retention Parameters. Agronomy 2015, 5, 464-475.

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