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
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Publicado: Nature Portfolio 2021
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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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