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001009668 0247_ $$2datacite_doi$$a10.34734/FZJ-2023-02925
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001009668 1001_ $$0P:(DE-Juel1)180215$$aBukhary, Tarig$$b0$$eCorresponding author
001009668 245__ $$aElectrical resistivity tomography (ERT) measurements during water flow in a date palm stem segment
001009668 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2023
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001009668 520__ $$aCommercial cultivation of date palms has high economic significance, particularly in arid and hyper-arid regions. Achieving commercially viable yield of dates amid water scarcity and enforced restrictions on water use requires optimising the amount and timing of irrigation. To that end, better understanding of the temporal dynamics of the water use of date palm is of great importance. Traditionally, this can be achieved through sap flow estimates obtained using heat dissipation probes. However, such measurements lack the ability to provide information on the spatial distribution of sap flow, which is important considering that date palms transport water in the entire stem cross-section. The aim of this study is to evaluate whether electrical resistivity tomography measurements have the potential to provide information on the spatial variability of flow in date palm stems. For this, flow was induced through a stem segment that was obtained from a felled date palm tree. ERT measurements were continuously obtained throughout a cycle of flow and no-flow periods. The results showed that the mean bulk electrical conductivity varied strongly due to changes in the flow conditions. In addition, it was found that the electrical conductivity of the outflow was much higher than that of the inflow, which indicates the release of stored salt from the stem segment. Analysis of the spatial distribution of the electrical conductivity suggested that flow mainly occurred in a limited part of the cross-sectional area of the stem. Overall, it was concluded that the ERT is a promising tool to investigate the spatial variability of water flow in date palm stems.
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001009668 536__ $$0G:(BMBF)02WIL1524$$aPALM-IRRI: Integration von elektrischer Widerstandstomographie und Saftflussmessungen in Agrarökosystemmodelle zur Verbesserung der Bewässerungseffizienz von Dattelpalmen (Deutsch-Israelische Wassertechnologie-Kooperation) (02WIL1524)$$c02WIL1524$$x1
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001009668 7001_ $$0P:(DE-Juel1)129472$$aHuisman, Johan Alexander$$b1
001009668 7001_ $$0P:(DE-Juel1)180342$$aWang, Haoran$$b2$$ufzj
001009668 7001_ $$0P:(DE-Juel1)133962$$aZimmermann, Egon$$b3
001009668 7001_ $$0P:(DE-Juel1)129549$$aVereecken, Harry$$b4
001009668 7001_ $$0P:(DE-HGF)0$$aLazarovitch, Naftali$$b5
001009668 773__ $$0PERI:(DE-600)2016151-7$$a10.1016/j.compag.2023.108084$$gVol. 212, p. 108084 -$$nC$$p108084 -$$tComputers and electronics in agriculture$$v212$$x0168-1699$$y2023
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001009668 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a French Associates Institute for Agriculture and Biotechnology of Drylands, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben Gurion 8490000, Israel$$b5
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