Prediction model for sap flow in cacao trees under different radiation intensities in the western Colombian Amazon

Abstract In this study, we measured diurnal patterns of sap flow (V s ) in cacao trees growing in three types of agroforestry systems (AFs) that differ in the incident solar radiation they receive. We modeled the relationship of V s with several microclimatic characteristics of the AFs using mixed l...

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Autores principales:	Juan Carlos Suárez, Fernando Casanoves, Marie Ange Ngo Bieng, Luz Marina Melgarejo, Julio A. Di Rienzo, Cristina Armas
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/020683409b604010898a71ef0730b650
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spelling	oai:doaj.org-article:020683409b604010898a71ef0730b6502021-12-02T15:45:21ZPrediction model for sap flow in cacao trees under different radiation intensities in the western Colombian Amazon10.1038/s41598-021-89876-z2045-2322https://doaj.org/article/020683409b604010898a71ef0730b6502021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89876-zhttps://doaj.org/toc/2045-2322Abstract In this study, we measured diurnal patterns of sap flow (V s ) in cacao trees growing in three types of agroforestry systems (AFs) that differ in the incident solar radiation they receive. We modeled the relationship of V s with several microclimatic characteristics of the AFs using mixed linear models. We characterized microclimatic variables that may have an effect on diurnal patterns of sap flow: air relative humidity, air temperature, photosynthetically active radiation and vapor pressure deficit. Overall, our model predicted the differences between cacao V s in the three different AFs, with cacao plants with dense Musaceae plantation and high mean diurnal incident radiation (H PAR ) displaying the highest differences compared to the other agroforestry arrangements. The model was also able to predict situations such as nocturnal transpiration in H PAR and inverse nocturnal sap flows indicative of hydraulic redistribution in the other AFs receiving less incident radiation. Overall, the model we present here can be a useful and cost-effective tool for predicting transpiration and water use in cacao trees, as well as for managing cacao agroforestry systems in the Amazon rainforest.Juan Carlos SuárezFernando CasanovesMarie Ange Ngo BiengLuz Marina MelgarejoJulio A. Di RienzoCristina ArmasNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Juan Carlos Suárez Fernando Casanoves Marie Ange Ngo Bieng Luz Marina Melgarejo Julio A. Di Rienzo Cristina Armas Prediction model for sap flow in cacao trees under different radiation intensities in the western Colombian Amazon
description	Abstract In this study, we measured diurnal patterns of sap flow (V s ) in cacao trees growing in three types of agroforestry systems (AFs) that differ in the incident solar radiation they receive. We modeled the relationship of V s with several microclimatic characteristics of the AFs using mixed linear models. We characterized microclimatic variables that may have an effect on diurnal patterns of sap flow: air relative humidity, air temperature, photosynthetically active radiation and vapor pressure deficit. Overall, our model predicted the differences between cacao V s in the three different AFs, with cacao plants with dense Musaceae plantation and high mean diurnal incident radiation (H PAR ) displaying the highest differences compared to the other agroforestry arrangements. The model was also able to predict situations such as nocturnal transpiration in H PAR and inverse nocturnal sap flows indicative of hydraulic redistribution in the other AFs receiving less incident radiation. Overall, the model we present here can be a useful and cost-effective tool for predicting transpiration and water use in cacao trees, as well as for managing cacao agroforestry systems in the Amazon rainforest.
format	article
author	Juan Carlos Suárez Fernando Casanoves Marie Ange Ngo Bieng Luz Marina Melgarejo Julio A. Di Rienzo Cristina Armas
author_facet	Juan Carlos Suárez Fernando Casanoves Marie Ange Ngo Bieng Luz Marina Melgarejo Julio A. Di Rienzo Cristina Armas
author_sort	Juan Carlos Suárez
title	Prediction model for sap flow in cacao trees under different radiation intensities in the western Colombian Amazon
title_short	Prediction model for sap flow in cacao trees under different radiation intensities in the western Colombian Amazon
title_full	Prediction model for sap flow in cacao trees under different radiation intensities in the western Colombian Amazon
title_fullStr	Prediction model for sap flow in cacao trees under different radiation intensities in the western Colombian Amazon
title_full_unstemmed	Prediction model for sap flow in cacao trees under different radiation intensities in the western Colombian Amazon
title_sort	prediction model for sap flow in cacao trees under different radiation intensities in the western colombian amazon
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/020683409b604010898a71ef0730b650
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Prediction model for sap flow in cacao trees under different radiation intensities in the western Colombian Amazon

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