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Comparison of water-use characteristics of tropical tree saplings with implications for forest restoration

Tropical forests are experiencing reduced productivity and will need restoration with suitable species. Knowledge of species-specific responses to changing environments during early stage can help identify the appropriate species for sustainable planting. Hence, we investigated the variability in wh...

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Autores principales: Andriyas, Tushar, Leksungnoen, Nisa, Tor-ngern, Pantana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7813824/
https://www.ncbi.nlm.nih.gov/pubmed/33462324
http://dx.doi.org/10.1038/s41598-021-81334-0
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author Andriyas, Tushar
Leksungnoen, Nisa
Tor-ngern, Pantana
author_facet Andriyas, Tushar
Leksungnoen, Nisa
Tor-ngern, Pantana
author_sort Andriyas, Tushar
collection PubMed
description Tropical forests are experiencing reduced productivity and will need restoration with suitable species. Knowledge of species-specific responses to changing environments during early stage can help identify the appropriate species for sustainable planting. Hence, we investigated the variability in whole-tree canopy conductance and transpiration (G(t) and E(L)) in potted saplings of common urban species in Thailand, viz., Pterocarpus indicus, Lagerstroemia speciosa, and Swietenia macrophylla, across wet and dry seasons in 2017–2018. Using a Bayesian modeling framework, G(t) and E(L) were estimated from sap flux density, informed by the soil, atmospheric and tree measurements. Subsequently, we evaluated their variations with changing vapor pressure deficit (VPD) and soil moisture across timescales and season. We found that G(t) and E(L) were higher and highly variable in L. speciosa across seasons than S. macrophylla and P. indicus. Our results implied that water-use in these species was sensitive to seasonal VPD. L. speciosa may be suitable under future climate variability, given its higher G(t) and E(L) across atmospheric and soil moisture conditions. With their lower G(t) and E(L), P. indicus and S. macrophylla may photosynthesize throughout the year, maintaining their stomatal opening even under high VPD. These findings benefit reforestation and reclamation programs of degraded lands.
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spelling pubmed-78138242021-01-21 Comparison of water-use characteristics of tropical tree saplings with implications for forest restoration Andriyas, Tushar Leksungnoen, Nisa Tor-ngern, Pantana Sci Rep Article Tropical forests are experiencing reduced productivity and will need restoration with suitable species. Knowledge of species-specific responses to changing environments during early stage can help identify the appropriate species for sustainable planting. Hence, we investigated the variability in whole-tree canopy conductance and transpiration (G(t) and E(L)) in potted saplings of common urban species in Thailand, viz., Pterocarpus indicus, Lagerstroemia speciosa, and Swietenia macrophylla, across wet and dry seasons in 2017–2018. Using a Bayesian modeling framework, G(t) and E(L) were estimated from sap flux density, informed by the soil, atmospheric and tree measurements. Subsequently, we evaluated their variations with changing vapor pressure deficit (VPD) and soil moisture across timescales and season. We found that G(t) and E(L) were higher and highly variable in L. speciosa across seasons than S. macrophylla and P. indicus. Our results implied that water-use in these species was sensitive to seasonal VPD. L. speciosa may be suitable under future climate variability, given its higher G(t) and E(L) across atmospheric and soil moisture conditions. With their lower G(t) and E(L), P. indicus and S. macrophylla may photosynthesize throughout the year, maintaining their stomatal opening even under high VPD. These findings benefit reforestation and reclamation programs of degraded lands. Nature Publishing Group UK 2021-01-18 /pmc/articles/PMC7813824/ /pubmed/33462324 http://dx.doi.org/10.1038/s41598-021-81334-0 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Andriyas, Tushar
Leksungnoen, Nisa
Tor-ngern, Pantana
Comparison of water-use characteristics of tropical tree saplings with implications for forest restoration
title Comparison of water-use characteristics of tropical tree saplings with implications for forest restoration
title_full Comparison of water-use characteristics of tropical tree saplings with implications for forest restoration
title_fullStr Comparison of water-use characteristics of tropical tree saplings with implications for forest restoration
title_full_unstemmed Comparison of water-use characteristics of tropical tree saplings with implications for forest restoration
title_short Comparison of water-use characteristics of tropical tree saplings with implications for forest restoration
title_sort comparison of water-use characteristics of tropical tree saplings with implications for forest restoration
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7813824/
https://www.ncbi.nlm.nih.gov/pubmed/33462324
http://dx.doi.org/10.1038/s41598-021-81334-0
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