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...
- Autores:
- 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
- Rights
- License
- Abierto (Texto Completo)
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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 |
_version_ |
1814167604041875456 |