Transpiration of a Tropical Dry Deciduous Forest in Yucatan, Mexico

The study of forest hydrology and its relationships with climate requires accurate estimates of water inputs, outputs, and changes in reservoirs. Evapotranspiration is frequently the least studied component when addressing the water cycle; thus, it is important to obtain direct measurements of evapo...

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Main Authors: Evelyn Raquel Salas-Acosta, José Luis Andrade, Jorge Adrián Perera-Burgos, Roberth Us-Santamaría, Bernardo Figueroa-Espinoza, Jorge M. Uuh-Sonda, Eduardo Cejudo
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Atmosphere
Subjects:
Online Access:https://www.mdpi.com/2073-4433/13/2/271
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author Evelyn Raquel Salas-Acosta
José Luis Andrade
Jorge Adrián Perera-Burgos
Roberth Us-Santamaría
Bernardo Figueroa-Espinoza
Jorge M. Uuh-Sonda
Eduardo Cejudo
author_facet Evelyn Raquel Salas-Acosta
José Luis Andrade
Jorge Adrián Perera-Burgos
Roberth Us-Santamaría
Bernardo Figueroa-Espinoza
Jorge M. Uuh-Sonda
Eduardo Cejudo
author_sort Evelyn Raquel Salas-Acosta
collection DOAJ
description The study of forest hydrology and its relationships with climate requires accurate estimates of water inputs, outputs, and changes in reservoirs. Evapotranspiration is frequently the least studied component when addressing the water cycle; thus, it is important to obtain direct measurements of evaporation and transpiration. This study measured transpiration in a tropical dry deciduous forest in Yucatán (Mexico) using the thermal dissipation method (Granier-type sensors) in representative species of this vegetation type. We estimated stand transpiration and its relationship with allometry, diameter-at-breast-height categories, and previously published equations. We found that transpiration changes over time, being higher in the rainy season. Estimated daily transpiration ranged from 0.562 to 0.690 kg m<sup>–2</sup> d<sup>–1</sup> in the late dry season (April–May) and from 0.686 to 1.29 kg m<sup>–2</sup> d<sup>–1</sup> in the late rainy season (September–October), accounting for up to 51% of total evapotranspiration in the rainy season. These daily estimates are consistent with previous reports for tropical dry forests and other vegetation types. We found that transpiration was not species-specific; diameter at breast height (DBH) was a reliable way of estimating transpiration because water use was directly related to allometry. Direct measurement of transpiration would increase our ability to accurately estimate water availability and assess the responses of vegetation to climate change.
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spelling doaj.art-2c8794768bf943fb8fc1ca03c9d534fc2023-11-23T18:45:02ZengMDPI AGAtmosphere2073-44332022-02-0113227110.3390/atmos13020271Transpiration of a Tropical Dry Deciduous Forest in Yucatan, MexicoEvelyn Raquel Salas-Acosta0José Luis Andrade1Jorge Adrián Perera-Burgos2Roberth Us-Santamaría3Bernardo Figueroa-Espinoza4Jorge M. Uuh-Sonda5Eduardo Cejudo6CONACYT—Centro de Investigación Científica de Yucatán, Unidad de Ciencias del Agua, Cancún 77500, MexicoCentro de Investigación Científica de Yucatán, Unidad de Recursos Naturales, Mérida 97205, MexicoCONACYT—Centro de Investigación Científica de Yucatán, Unidad de Ciencias del Agua, Cancún 77500, MexicoCentro de Investigación Científica de Yucatán, Unidad de Recursos Naturales, Mérida 97205, MexicoLaboratorio de Ingeniería y Procesos Costeros, Instituto de Ingeniería, Universidad Nacional Autónoma de Mexico, Sisal 97355, MexicoDepartamento de Ciencias del Agua y Medio Ambiente, Instituto Tecnológico de Sonora, Obregón 85000, MexicoCONACYT—Centro de Investigación Científica de Yucatán, Unidad de Ciencias del Agua, Cancún 77500, MexicoThe study of forest hydrology and its relationships with climate requires accurate estimates of water inputs, outputs, and changes in reservoirs. Evapotranspiration is frequently the least studied component when addressing the water cycle; thus, it is important to obtain direct measurements of evaporation and transpiration. This study measured transpiration in a tropical dry deciduous forest in Yucatán (Mexico) using the thermal dissipation method (Granier-type sensors) in representative species of this vegetation type. We estimated stand transpiration and its relationship with allometry, diameter-at-breast-height categories, and previously published equations. We found that transpiration changes over time, being higher in the rainy season. Estimated daily transpiration ranged from 0.562 to 0.690 kg m<sup>–2</sup> d<sup>–1</sup> in the late dry season (April–May) and from 0.686 to 1.29 kg m<sup>–2</sup> d<sup>–1</sup> in the late rainy season (September–October), accounting for up to 51% of total evapotranspiration in the rainy season. These daily estimates are consistent with previous reports for tropical dry forests and other vegetation types. We found that transpiration was not species-specific; diameter at breast height (DBH) was a reliable way of estimating transpiration because water use was directly related to allometry. Direct measurement of transpiration would increase our ability to accurately estimate water availability and assess the responses of vegetation to climate change.https://www.mdpi.com/2073-4433/13/2/271sap fluxseasonalitystand transpirationevapotranspirationdry deciduous forest
spellingShingle Evelyn Raquel Salas-Acosta
José Luis Andrade
Jorge Adrián Perera-Burgos
Roberth Us-Santamaría
Bernardo Figueroa-Espinoza
Jorge M. Uuh-Sonda
Eduardo Cejudo
Transpiration of a Tropical Dry Deciduous Forest in Yucatan, Mexico
Atmosphere
sap flux
seasonality
stand transpiration
evapotranspiration
dry deciduous forest
title Transpiration of a Tropical Dry Deciduous Forest in Yucatan, Mexico
title_full Transpiration of a Tropical Dry Deciduous Forest in Yucatan, Mexico
title_fullStr Transpiration of a Tropical Dry Deciduous Forest in Yucatan, Mexico
title_full_unstemmed Transpiration of a Tropical Dry Deciduous Forest in Yucatan, Mexico
title_short Transpiration of a Tropical Dry Deciduous Forest in Yucatan, Mexico
title_sort transpiration of a tropical dry deciduous forest in yucatan mexico
topic sap flux
seasonality
stand transpiration
evapotranspiration
dry deciduous forest
url https://www.mdpi.com/2073-4433/13/2/271
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