Ecophysiological responses to different forest patch type of two codominant tree seedlings.
Ecophysiological responses to different forest patch type of two codominant tree seedlings.
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两种共优势树苗对不同林斑类型的生态生理响应
DOI：
10.1002/ece3.1368
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发表时间：
2015-01
影响因子：
2.6
通讯作者：
Fan, Weiyi
中科院分区：
文献类型：
--
作者：
Duan, Renyan;Huang, Minyi;Kong, Xiaoquan;Wang, Zhigao;Fan, Weiyi
根据林隙动态理论，森林可分为4种斑块类型：林隙斑块（G）、建设斑块（B）、成熟斑块（M）和退化斑块（D）。不同斑块类型的光照条件是影响植被共存的最重要因素之一。共存的机制可以理解通过详细了解的生态生理反应的共显性树苗斑块类型。研究了万年青阔叶树种青冈（Cyclobalanopsis glauca）和落叶阔叶树种刺果栎（Bothrocaryum controversum）对4种不同斑块类型的生理生态响应。在林隙动态过程中，4种斑块的光强和变化幅度均为：G > B > D > M。这两个物种有最大的光合能力在G补丁。单位面积干叶质量（LMA）、叶绿素a + B浓度（Chl）、类胡萝卜素（Car）和单位面积氮含量（Na）均对不同斑块类型的光照变化有响应，但B对光照变化无响应。参麦的敏感性和变化性均高于C. glauca。从G斑到M斑，B的最大量子效率（Fv/Fm）变化幅度较大。controversum比C. glauca。从G到M补丁，B。参麦的气体交换变化显著，而C. glauca只显示了很小的变化。生态生理特性分区的光响应在不同的补丁提供了一个可能的解释共存机制。
According to gap-phase dynamics theory, forests can be divided into four distinct patch types: gap patch (G), building patch (B), mature patch (M), and degeneration patch (D). Varying light conditions across patch types are one of the most important factors affecting the coexistence of vegetation. Mechanisms of coexistence can be understood through detailed knowledge of ecophysiological responses of codominant tree seedlings to patch types. The following study was conducted to determine ecophysiological responses of Cyclobalanopsis glauca (an evergreen broad-leaved species) and Bothrocaryum controversum (a deciduous broad-leaved species) to four different patch types. During the gap-phase dynamics, light intensity and the magnitude of change in the four different patches followed the order of: G > B > D > M. Both species had the greatest photosynthetic capacity in the G patch. Dry leaf mass per area (LMA), Chlorophyll a + b concentration (Chl), carotenoids (Car), and nitrogen content per area (Na) all responded to changes in light across patch type, but B. controversum showed greater sensitivity and changes than C. glauca. From G to M patch, the maximal quantum efficiency of PSII (Fv/Fm) had a larger variation magnitude for B. controversum than for C. glauca. From G to M patch, B. controversum showed significant changes in gas exchange, while C. glauca showed only small changes. Ecophysiological trait partitioning of response to light in different patches provides a possible explanation of a coexistence mechanism.
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影响因子：
2.7
作者：
Wyka, Tomasz P.;Oleksyn, J.;Zytkowiak, R.;Karolewski, P.;Jagodzinski, A. M.;Reich, P. B.
通讯作者：
Reich, P. B.
影响因子：
3.7
作者：
SCHREIBER, U;SCHLIWA, U;BILGER, W
通讯作者：
BILGER, W
影响因子：
7.3
作者：
Yoshimura, Kenichi
通讯作者：
Yoshimura, Kenichi
影响因子：
2
作者：
Niinemets, Uelo
通讯作者：
Niinemets, Uelo
影响因子：
2.2
作者：
Feijo, Natalia S. A.;Mielke, Marcelo S.;Lavinsky, Alyne O.
通讯作者：
Lavinsky, Alyne O.