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Article: Large‐Scale Geographical Variations and Climatic Controls on Crown Architecture Traits
Title | Large‐Scale Geographical Variations and Climatic Controls on Crown Architecture Traits |
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Authors | |
Keywords | crown architecture terrestrial laser scanning climate variations coordination |
Issue Date | 2020 |
Publisher | American Geophysical Union, co-published with Wiley. The Journal's web site is located at http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2169-8961 |
Citation | Journal of Geophysical Research: Biogeosciences, 2020, v. 125 n. 2, p. article no. e2019JG005306 How to Cite? |
Abstract | Crown architecture is a critical component for a tree to interact with the ambient environment and to compete with neighbors. However, little is known regarding how climate variability may shape crown architecture traits across large geographical extents and whether crown architecture traits have coordinated variations with trunk and leaf traits to climate gradients. Here we used Quercus mongolica trees as an example, used the cutting‐edge terrestrial laser scanning technique to accurately characterize their crown architecture traits, and explored their variabilities along with environmental variability across large climate gradients in northern China. Our results showed that there are significant spatial variations in trunk, crown, and leaf traits even for the same genetic group across large environmental gradients. Tree height and leaf size had tight covariations with precipitation (|R |> 0.8, p < 0.01). We also observed coordinated variations among crown architecture traits related to canopy shape (e.g., primary branch insertion angle, chord length ratio), trunk traits (e.g., tree height), leaf traits (e.g., specific leaf area), and climate variability, highlighting there are likely fundamental evolutionary strategies regulating these covariations. With a projected drier and hotter climate scenario in this region, our results further suggest trees are expected to transit from a “tree shape” to a “shrub shape,” with large ecological and ecophysiological impacts on this region. |
Persistent Identifier | http://hdl.handle.net/10722/283327 |
ISSN | 2023 Impact Factor: 3.7 2023 SCImago Journal Rankings: 1.459 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Su, Y | - |
dc.contributor.author | Hu, T | - |
dc.contributor.author | Wang, Y | - |
dc.contributor.author | Li, Y | - |
dc.contributor.author | Dai, J | - |
dc.contributor.author | Liu, H | - |
dc.contributor.author | Jin, S | - |
dc.contributor.author | Ma, Q | - |
dc.contributor.author | Wu, J | - |
dc.contributor.author | Liu, L | - |
dc.contributor.author | Fang, J | - |
dc.contributor.author | Guo, Q | - |
dc.date.accessioned | 2020-06-22T02:55:04Z | - |
dc.date.available | 2020-06-22T02:55:04Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Journal of Geophysical Research: Biogeosciences, 2020, v. 125 n. 2, p. article no. e2019JG005306 | - |
dc.identifier.issn | 2169-8953 | - |
dc.identifier.uri | http://hdl.handle.net/10722/283327 | - |
dc.description.abstract | Crown architecture is a critical component for a tree to interact with the ambient environment and to compete with neighbors. However, little is known regarding how climate variability may shape crown architecture traits across large geographical extents and whether crown architecture traits have coordinated variations with trunk and leaf traits to climate gradients. Here we used Quercus mongolica trees as an example, used the cutting‐edge terrestrial laser scanning technique to accurately characterize their crown architecture traits, and explored their variabilities along with environmental variability across large climate gradients in northern China. Our results showed that there are significant spatial variations in trunk, crown, and leaf traits even for the same genetic group across large environmental gradients. Tree height and leaf size had tight covariations with precipitation (|R |> 0.8, p < 0.01). We also observed coordinated variations among crown architecture traits related to canopy shape (e.g., primary branch insertion angle, chord length ratio), trunk traits (e.g., tree height), leaf traits (e.g., specific leaf area), and climate variability, highlighting there are likely fundamental evolutionary strategies regulating these covariations. With a projected drier and hotter climate scenario in this region, our results further suggest trees are expected to transit from a “tree shape” to a “shrub shape,” with large ecological and ecophysiological impacts on this region. | - |
dc.language | eng | - |
dc.publisher | American Geophysical Union, co-published with Wiley. The Journal's web site is located at http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2169-8961 | - |
dc.relation.ispartof | Journal of Geophysical Research: Biogeosciences | - |
dc.rights | Journal of Geophysical Research: Biogeosciences. Copyright © American Geophysical Union, co-published with Wiley. | - |
dc.rights | ©[2020]. American Geophysical Union. All Rights Reserved. This article is available at https://doi.org/10.1029/2019JG005306 | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | crown architecture | - |
dc.subject | terrestrial laser scanning | - |
dc.subject | climate variations | - |
dc.subject | coordination | - |
dc.title | Large‐Scale Geographical Variations and Climatic Controls on Crown Architecture Traits | - |
dc.type | Article | - |
dc.identifier.email | Wu, J: jinwu@hku.hk | - |
dc.identifier.authority | Wu, J=rp02509 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1029/2019JG005306 | - |
dc.identifier.scopus | eid_2-s2.0-85080103882 | - |
dc.identifier.hkuros | 310541 | - |
dc.identifier.volume | 125 | - |
dc.identifier.issue | 2 | - |
dc.identifier.spage | article no. e2019JG005306 | - |
dc.identifier.epage | article no. e2019JG005306 | - |
dc.identifier.isi | WOS:000534472900040 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 2169-8953 | - |