Interplay of seasonal sunlight, air and leaf temperature in two alpine páramo species, Colombian Andes

In models of photosynthetic gas exchange, leaf temperature (Tleaf) is often calculated using a combination of derivations of the energy balance equation and measurements of air temperature (Tair). Yet, there are frequently large differences between Tleaf and Tair under natural field conditions, and...

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Tipo de recurso:
Fecha de publicación:
2018
Institución:
Universidad del Rosario
Repositorio:
Repositorio EdocUR - U. Rosario
Idioma:
eng
OAI Identifier:
oai:repository.urosario.edu.co:10336/23874
Acceso en línea:
https://doi.org/10.1016/j.agrformet.2018.01.033
https://repository.urosario.edu.co/handle/10336/23874
Palabra clave:
Air temperature
Alpine environment
Bamboo
Climate change
Climate modeling
Energy balance
Leaf
Numerical model
Seasonality
Shrub
Solar radiation
Tropical region
Tundra
Andes
Colombia
Chusquea tessellata
Espeletia
Air temperature
Climate change
Climate modeling
Sunlight
Tropical alpine
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Abierto (Texto Completo)
id EDOCUR2_0c7d719c56f744c54610a54a60a3a1b3
oai_identifier_str oai:repository.urosario.edu.co:10336/23874
network_acronym_str EDOCUR2
network_name_str Repositorio EdocUR - U. Rosario
repository_id_str
spelling 52699585600fa7482f4-5e78-4e70-a1ca-a8f524094069804161776007b6aa7f3-5aa4-49f8-a6b7-d6c1460057f32020-05-26T00:06:17Z2020-05-26T00:06:17Z2018In models of photosynthetic gas exchange, leaf temperature (Tleaf) is often calculated using a combination of derivations of the energy balance equation and measurements of air temperature (Tair). Yet, there are frequently large differences between Tleaf and Tair under natural field conditions, and an energy balance is complicated in complex canopies, especially in tropical ecosystems. In the present study, we aimed to quantify the variation in Tleaf relative to Tair under naturally varying PPFD values in two representative species (Espeletia grandiflora and Chusquea tessellata) of a tropical alpine ecosystem (páramo, Colombian Andes) during both wet and dry seasons. The results of a Structural Equation Model showed that Tleaf was strongly correlated with changes in Tair during both seasons, but large differences (up to 14 °C) occurred between Tair and Tleaf, during the dry season when PPFD varied the most, especially in C. tessellata. Thus, using Tair to proximate Tleaf under variable conditions of incident sunlight could generate substantial errors in estimates of temperature-sensitive physiological processes. These results should be valuable for evaluating the accuracy of carbon and water exchange models within current and future scenarios of climate change in tropical páramos, as well as other ecosystems. © 2018 Elsevier B.V.application/pdfhttps://doi.org/10.1016/j.agrformet.2018.01.0331681923https://repository.urosario.edu.co/handle/10336/23874engElsevier B.V.4738Agricultural and Forest MeteorologyVol. 253-254Agricultural and Forest Meteorology, ISSN:1681923, Vol.253-254,(2018); pp. 38-47https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041816908&doi=10.1016%2fj.agrformet.2018.01.033&partnerID=40&md5=057fee35c9031ee5c99c5f23169f498aAbierto (Texto Completo)http://purl.org/coar/access_right/c_abf2instname:Universidad del Rosarioreponame:Repositorio Institucional EdocURAir temperatureAlpine environmentBambooClimate changeClimate modelingEnergy balanceLeafNumerical modelSeasonalityShrubSolar radiationTropical regionTundraAndesColombiaChusquea tessellataEspeletiaAir temperatureClimate changeClimate modelingSunlightTropical alpineInterplay of seasonal sunlight, air and leaf temperature in two alpine páramo species, Colombian AndesarticleArtículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_6501Sánchez Andrade, AdrianaRey-Sánchez A.C.Posada Hostettler, Juan Manuel RobertoSmith W.K.10336/23874oai:repository.urosario.edu.co:10336/238742022-05-02 07:37:17.321572https://repository.urosario.edu.coRepositorio institucional EdocURedocur@urosario.edu.co
dc.title.spa.fl_str_mv Interplay of seasonal sunlight, air and leaf temperature in two alpine páramo species, Colombian Andes
title Interplay of seasonal sunlight, air and leaf temperature in two alpine páramo species, Colombian Andes
spellingShingle Interplay of seasonal sunlight, air and leaf temperature in two alpine páramo species, Colombian Andes
Air temperature
Alpine environment
Bamboo
Climate change
Climate modeling
Energy balance
Leaf
Numerical model
Seasonality
Shrub
Solar radiation
Tropical region
Tundra
Andes
Colombia
Chusquea tessellata
Espeletia
Air temperature
Climate change
Climate modeling
Sunlight
Tropical alpine
title_short Interplay of seasonal sunlight, air and leaf temperature in two alpine páramo species, Colombian Andes
title_full Interplay of seasonal sunlight, air and leaf temperature in two alpine páramo species, Colombian Andes
title_fullStr Interplay of seasonal sunlight, air and leaf temperature in two alpine páramo species, Colombian Andes
title_full_unstemmed Interplay of seasonal sunlight, air and leaf temperature in two alpine páramo species, Colombian Andes
title_sort Interplay of seasonal sunlight, air and leaf temperature in two alpine páramo species, Colombian Andes
dc.subject.keyword.spa.fl_str_mv Air temperature
Alpine environment
Bamboo
Climate change
Climate modeling
Energy balance
Leaf
Numerical model
Seasonality
Shrub
Solar radiation
Tropical region
Tundra
Andes
Colombia
Chusquea tessellata
Espeletia
Air temperature
Climate change
Climate modeling
Sunlight
Tropical alpine
topic Air temperature
Alpine environment
Bamboo
Climate change
Climate modeling
Energy balance
Leaf
Numerical model
Seasonality
Shrub
Solar radiation
Tropical region
Tundra
Andes
Colombia
Chusquea tessellata
Espeletia
Air temperature
Climate change
Climate modeling
Sunlight
Tropical alpine
description In models of photosynthetic gas exchange, leaf temperature (Tleaf) is often calculated using a combination of derivations of the energy balance equation and measurements of air temperature (Tair). Yet, there are frequently large differences between Tleaf and Tair under natural field conditions, and an energy balance is complicated in complex canopies, especially in tropical ecosystems. In the present study, we aimed to quantify the variation in Tleaf relative to Tair under naturally varying PPFD values in two representative species (Espeletia grandiflora and Chusquea tessellata) of a tropical alpine ecosystem (páramo, Colombian Andes) during both wet and dry seasons. The results of a Structural Equation Model showed that Tleaf was strongly correlated with changes in Tair during both seasons, but large differences (up to 14 °C) occurred between Tair and Tleaf, during the dry season when PPFD varied the most, especially in C. tessellata. Thus, using Tair to proximate Tleaf under variable conditions of incident sunlight could generate substantial errors in estimates of temperature-sensitive physiological processes. These results should be valuable for evaluating the accuracy of carbon and water exchange models within current and future scenarios of climate change in tropical páramos, as well as other ecosystems. © 2018 Elsevier B.V.
publishDate 2018
dc.date.created.spa.fl_str_mv 2018
dc.date.accessioned.none.fl_str_mv 2020-05-26T00:06:17Z
dc.date.available.none.fl_str_mv 2020-05-26T00:06:17Z
dc.type.eng.fl_str_mv article
dc.type.coarversion.fl_str_mv http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_6501
dc.type.spa.spa.fl_str_mv Artículo
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1016/j.agrformet.2018.01.033
dc.identifier.issn.none.fl_str_mv 1681923
dc.identifier.uri.none.fl_str_mv https://repository.urosario.edu.co/handle/10336/23874
url https://doi.org/10.1016/j.agrformet.2018.01.033
https://repository.urosario.edu.co/handle/10336/23874
identifier_str_mv 1681923
dc.language.iso.spa.fl_str_mv eng
language eng
dc.relation.citationEndPage.none.fl_str_mv 47
dc.relation.citationStartPage.none.fl_str_mv 38
dc.relation.citationTitle.none.fl_str_mv Agricultural and Forest Meteorology
dc.relation.citationVolume.none.fl_str_mv Vol. 253-254
dc.relation.ispartof.spa.fl_str_mv Agricultural and Forest Meteorology, ISSN:1681923, Vol.253-254,(2018); pp. 38-47
dc.relation.uri.spa.fl_str_mv https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041816908&doi=10.1016%2fj.agrformet.2018.01.033&partnerID=40&md5=057fee35c9031ee5c99c5f23169f498a
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.acceso.spa.fl_str_mv Abierto (Texto Completo)
rights_invalid_str_mv Abierto (Texto Completo)
http://purl.org/coar/access_right/c_abf2
dc.format.mimetype.none.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Elsevier B.V.
institution Universidad del Rosario
dc.source.instname.spa.fl_str_mv instname:Universidad del Rosario
dc.source.reponame.spa.fl_str_mv reponame:Repositorio Institucional EdocUR
repository.name.fl_str_mv Repositorio institucional EdocUR
repository.mail.fl_str_mv edocur@urosario.edu.co
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