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Open AccessTechnical Note

Parameter Estimation for Soil Water Retention Curve Using the Salp Swarm Algorithm

by Jing Zhang 1,2,3, Zhenhua Wang 4,* and Xiong Luo 1,2,3,*
1
School of Computer and Communication Engineering, University of Science and Technology Beijing (USTB), Beijing 100083, China
2
Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China
3
Key Laboratory of Geological Information Technology, Ministry of Land and Resources, Beijing 100037, China
4
College of Water Resources and Architectural Engineering, Shihezi University, Shihezi 832003, China
*
Authors to whom correspondence should be addressed.
Water 2018, 10(6), 815; https://doi.org/10.3390/w10060815
Received: 17 May 2018 / Revised: 15 June 2018 / Accepted: 18 June 2018 / Published: 20 June 2018
(This article belongs to the Special Issue Data-Driven Methods for Agricultural Water Management)
This paper employs an optimization algorithm called the salp swarm algorithm (SSA) for the parameter estimation of the soil water retention curve model. The SSA simulates the behavior of searching for food of the salp swarm and manages to find the optimal solutions for optimization problems. In this paper, parameter estimation of the van Genuchten model based on nine soil samples, covering eight soil textures, is conducted. The optimization problem that minimizes the difference between the measured and the estimated water content is formulated, and the SSA is applied to solve this problem. To validate the competitive advantage of the SSA, the experimental results are compared with Particle Swarm Optimization algorithm, the Differential Evolution algorithm and the RETC program, which indicates that SSA performs better than the three methods. View Full-Text
Keywords: irrigation and drainage; soil characteristics; salp swarm algorithm; evolutionary algorithm irrigation and drainage; soil characteristics; salp swarm algorithm; evolutionary algorithm
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Zhang, J.; Wang, Z.; Luo, X. Parameter Estimation for Soil Water Retention Curve Using the Salp Swarm Algorithm. Water 2018, 10, 815.

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