Respiratory temperature responses of tropical conifers differ with leaf morphology
Respiratory temperature responses of tropical conifers differ with leaf morphology
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热带针叶树的呼吸温度响应因叶片形态而异
DOI：
10.1111/1365-2435.13814
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发表时间：
2021
影响因子：
5.2
通讯作者：
Griffin, Kevin L.
中科院分区：
文献类型：
--
作者：
Schmiege, Stephanie C.;Buckley, Brendan M.;Stevenson, Dennis W.;Heskel, Mary A.;Cuong, Truong Quang;Nam, Le Canh;Griffin, Kevin L.
光合特性表明，耐荫性可以解释两个针叶树类群，罗汉松科，在热带森林中的对比成功。来自松属（松科）的针叶物种通常不存在于热带森林中，而平叶松Pinus krempfii和许多平叶罗汉松科植物则很丰富。呼吸（R）性状可能为热带森林中针叶树和平叶针叶树的对比成功提供更多的驱动因素。我们测量了在越南中部高地热带山地森林中共存的三种针叶树和七种平叶针叶树物种在10 °C和50°C之间的短期呼吸温度（RT）响应和叶片形态特征，其中包含显着的针叶树多样性。我们对每个RT曲线拟合对数正态多项式模型，并提取了以下三个参数：a（basalR）和bandc（共同描述响应的形状）。针叶树种（思茅松、白皮松和水曲柳）具有更高的基于面积的Rat 25°C（R25-area）速率，以及更高的基于面积的模拟基础呼吸（a）比平叶树种（P. krempfii，Podocarpus neriifolius，Dacrycarpus imbricatus，Nageia nana，Taxus wallichiana，Keteeleria evelyniana和Fokienia hodginsii）。在基于质量的R25中，针叶和平叶物种之间没有发现显著差异（R25-质量）或RT响应的形状（bandc）;然而，R25质量、大鼠夜间极端温度（R4.1和R20.6）和叶片性状的差异是明显的。R25面积的差异表明，针叶比平叶的叶子可能更需要能量来维持，提供了新的见解和额外的支持的假设，耐荫性是一个重要的驱动力，罗汉松科的成功和缺乏在大多数的热带forests.Interspecific差异在R25-质量和叶性状突出，不同的生态策略是由针叶树共存，并在越南中部高地生存。最终，这些数据进一步加深了我们对当前针叶树地理分布的理解，并强调需要进行更多的研究，以阐明极端温度事件对这一独特森林中针叶树持续生存的影响。
Photosynthetic traits suggest that shade tolerance may explain the contrasting success of two conifer taxa, Podocarpaceae and Pinaceae, in tropical forests. Needle‐leaved species fromPinus(Pinaceae) are generally absent from tropical forests, whereasPinus krempfii, a flat‐leaved pine, and numerous flat‐leaved Podocarpaceae are abundant. Respiration (R) traits may provide additional insight into the drivers of the contrasting success of needle‐ and flat‐leaved conifers in tropical forests.We measured the short‐term respiratory temperature (RT) response between 10 and 50°C and foliar morphological traits of three needle‐ and seven flat‐leaved conifer species coexisting in a tropical montane forest in the Central Highlands of Vietnam containing notable conifer diversity. We fit a lognormal polynomial model to each RT curve and extracted the following three parameters:a(basalR), andbandc(together describing the shape of the response).Needle‐leaved species (Pinus kesiya,Pinus dalatensisandDacrydium elatum) had higher rates of area‐basedRat 25°C (R25‐area) as well as higher area‐based modelled basal respiration (a) than flat‐leaved species (P. krempfii,Podocarpus neriifolius,Dacrycarpus imbricatus,Nageia nana,Taxus wallichiana,Keteeleria evelynianaandFokienia hodginsii). No significant differences were found between needle‐ and flat‐leaved species in mass‐basedR25(R25‐mass) or in the shape of the RT response (bandc); however, interspecific differences inR25‐mass,Rat nighttime temperature extremes (R4.1andR20.6) and leaf traits were apparent.Differences inR25‐areaandasuggest that needle‐leaved foliage may be more energetically costly to maintain than flat‐leaved foliage, providing new insight and additional support for the hypothesis that shade tolerance is an important driver of Podocarpaceae success and Pinaceae absence in the majority of tropical forests.Interspecific differences inR25‐massand leaf traits highlight that varying ecological strategies are employed by conifers to coexist and survive in the Central Highlands of Vietnam. Ultimately, these data further our understanding of current conifer biogeographical distributions and underscore the need for additional studies to elucidate the effects of extreme temperature events on the continued survival of conifers in this unique forest.A free Plain Language Summary can be found within the Supporting Information of this article.
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卡西松 (Pinus kesiya Royle ex Gordon) 的适应性生长策略
DOI：
--
发表时间：
1986
期刊：
Proceedings / Indian Academy of Sciences
影响因子：
--
作者：
Ashesh Kumar Das;P. Ramakrishnan
通讯作者：
P. Ramakrishnan
亚洲热带和亚热带松树草原生物群落的火灾
DOI：
--
发表时间：
1990
期刊：
影响因子：
--
作者：
J. Goldammer;S. R. Penafiel
通讯作者：
S. R. Penafiel
热对比生物群落中叶子呼吸温度响应的适应。
影响因子：
9.4
作者：
Lingling Zhu;K. Bloomfield;S. Asao;M. Tjoelker;John J. G. Egerton;Lucy Hayes;L. Weerasinghe;Danielle Creek;K. Griffin;V. Hurry;M. Liddell;P. Meir;M. Turnbull;O. Atkin
通讯作者：
O. Atkin
DOI：
10.1002/joc.5086
发表时间：
2017-10-01
期刊：
INTERNATIONAL JOURNAL OF CLIMATOLOGY
影响因子：
--
作者：
Fick, Stephen E.;Hijmans, Robert J.
通讯作者：
Hijmans, Robert J.
16种共生温带树种呼吸和呼吸商的温度响应
影响因子：
4
作者：
A. E. Patterson;Rachel Arkebauer;Crystal Quallo;M. Heskel;Ximeng Li;N. Boelman;K. Griffin
通讯作者：
K. Griffin