Modeling of soil water content for vegetated surface by artificial neural network and adaptive neuro-fuzzy inference system

Levent Şaylan, Reiji Kimura, Barış Caldaǧ*, Nilcan Akataş

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4 Atıf (Scopus)

Özet

Soil water content is one of the critical and dynamic factors for controlling many processes in plant growth and understanding agricultural drought status. It also influences the management of water. Unfortunately, it hasn’t been a routinely measured variable in the world, yet. Therefore, this variable is subject to be estimated using related approaches. In this study, an artificial neural network (ANN), a suitable adaptive neuro-fuzzy inference system (ANFIS) and a multiple linear regression (MLR) model were applied and compared for modeling the variation in the measured soil water content for a vegetated surface by meteorological and plant factors such as air temperature, relative humidity, vapor pressure deficit, precipitation and leaf area index. Measurements were carried out over an irrigated field. The results indicated that the best determination coefficient (r2=0.98) between the measured soil water content and all considered variables was estimated by the ANFIS, whereas weaker relationships were calculated between the same variables by MLR as r2=0.38 and ANN as r2=0.56. Comparisons showed that ANFIS approach had a better modeling potential of the soil water content compared to the MLR and ANN model in the trial period, though weaker relationships in the testing period were found by all approaches.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)37-44
Sayfa sayısı8
DergiItalian Journal of Agrometeorology
Hacim22
Basın numarası3
DOI'lar
Yayın durumuYayınlandı - 2017

Bibliyografik not

Publisher Copyright:
© 2017, Patron Editore S.r.l. All rights reserved.

Finansman

We would like to thank all of the technicians working for the Arid Land Research Center of Tottori University for their help during the measurements and Assist. Prof. Ahmet ÖZTOPAL for sharing his needful experience.

FinansörlerFinansör numarası
Tottori University

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