Effects of Simulated Wind Load on Leaf Photosynthesis and Carbohydrate Allocation in Eight<i> Quercus</i> Species

Yang, Xiaoyan; Zhang, Peng; Wu, Qianting; Yan, Haibin; Yu, Mukui; Wang, Geoff; Wu, Tonggui

doi:10.1166/jbmb.2017.1721

Cited by 8 publications

(6 citation statements)

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“…Leaf N, P concentrations were significantly impacted by wind for most Quercus species with elliptic leaves, which were similar to leaf morphology and photosynthesis in our previous studies [13,17,30]. The leaf N, P concentrations of Quercus species with lanceolate leaves, except for leaf P concentration of Q. virginiana, were not significantly impacted by wind, likely due to leaf shapes having reduced drag from wind as described previously [13].…”

Section: Response Of Leaf N P Stoichiometry To Windsupporting

confidence: 85%

“…Therefore, more nutrition-such as calcium, nitrogen, and phosphorus-would be transported from the roots and stems to leaves, accompanied by an increase in leaf water evaporation [37]. We also found that leaf transpiration rate increased under wind load for Q. texana, Q. palustris, and Q. virginiana in a previous study [30]. This may be another reason for higher leaf N, P concentrations under wind load.…”

Section: Response Of Leaf N P Stoichiometry To Windsupporting

confidence: 71%

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Effect of Wind on the Relation of Leaf N, P Stoichiometry with Leaf Morphology in Quercus Species

Zhang

Wang²,

et al. 2018

Forests

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Leaf nitrogen (N) and phosphorus (P) stoichiometry correlates closely to leaf morphology, which is strongly impacted by wind at multiple scales. However, it is not clear how leaf N, P stoichiometry and its relationship to leaf morphology changes with wind load. We determined the leaf N and P concentrations and leaf morphology-including specific leaf area (SLA) and leaf dissection index (LDI)-for eight Quercus species under a simulated wind load for seven months. Leaf N and P concentrations increased significantly under these conditions for Quercus acutissima, Quercus rubra, Quercus texana, and Quercus palustris-which have elliptic leaves-due to their higher N, P requirements and a resultant leaf biomass decrease, which is a tolerance strategy for Quercus species under a wind load. Leaf N:P was relatively stable under wind for all species, which supports stoichiometric homeostasis. Leaf N concentrations showed a positive correlation to SLA, leaf N and P concentrations showed positive correlations to LDI under each wind treatment, and the slope of correlations was not affected by wind, which indicates synchronous variations between leaf stoichiometry and leaf morphology under wind. However, the intercept of correlations was affected by wind, and leaf N and P use efficiency decreased under the wind load, which suggests that the Quercus species changes from "fast investment-return" in the control to "slow investment-return" under windy conditions. These results will be valuable to understanding functional strategies for plants under varying wind loads, especially synchronous variations in leaf traits along a wind gradient.

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Section: Response Of Leaf N P Stoichiometry To Windsupporting

confidence: 85%

Section: Response Of Leaf N P Stoichiometry To Windsupporting

confidence: 71%

Effect of Wind on the Relation of Leaf N, P Stoichiometry with Leaf Morphology in Quercus Species

Zhang

Wang²,

et al. 2018

Forests

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“…This study was conducted in the Guandi Mountains, Jiaocheng county, Lvliang country, Shanxi Province (111 • 22 -111 • 33 E, 37 • 45 -37 • 55 N) (Yang et al, 2017). The annual, minimum, and maximum temperatures are 4.3 • C, -29.1 • C, and 17.7 • C, respectively.…”

Section: Study Sitementioning

confidence: 99%

Characteristics and factors influencing the natural regeneration of Larix principis-rupprechtii seedlings in northern China

Zhao

Liang

Han

et al. 2021

PeerJ

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Larix principis-rupprechtii is an important and widely distributed species in the mountains of northern China. However, it has inefficient natural regeneration in many stands and difficulty recruiting seedlings and saplings. In this study, we selected six plots with improved naturally-regenerated L. principis-rupprechtii seedlings. A point pattern analysis (pair-correlation function) was applied to identify the spatial distribution pattern and correlation between adult trees and regenerated seedlings mapped through X/Y coordinates. Several possible influencing factors of L. principis-rupprechtii seedlings’ natural regeneration were also investigated. The results showed that the spatial distribution patterns of Larix principis-rupprechtii seedlings were concentrated 0–5 m around adult trees when considering the main univariate distribution type of regeneration. There was a positive correlation at a scale of 1.5–4 m between seedlings and adult trees according to bivariate analyses. When the scale was increased, these relationships were no longer significant. Generally, adult trees raised regenerated L. principis-rupprechtii seedlings at a scale of 1.5–4 m. Principal component analysis showed that the understory herb diversity and litter layer had a negative correlation with the number of regenerated seedlings. There was also a weak relationship between regenerated numbers and canopy density. This study demonstrated that the main factors promoting natural regeneration were litter thickness, herb diversity, and the distance between adult trees and regenerated seedlings. Additionally, these findings will provide a basis for the late-stage and practical management of natural regeneration in northern China’s mountain ranges.

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“…The study sites were located at high elevations in the forest zone of Guandi Mountain in the middle of the Lvliang Mountains, west Shanxi Province, China (37 (Yang et al, 2017). The annual mean temperature is 4.3 • C, and the mean annual precipitation along this gradient ranges from 600 mm to 822 mm (Liu et al, 2007).…”

Section: Study Areamentioning

confidence: 99%

“…The region has a temperate continental climate, with long, cold and dry winters and short, warm and rainy summers, the coldest month is January (−10.2 • C), and the warmest month is July (17.5 • C); the growing season generally runs from June to September. The soil is classified as brown soil (Chinese classification) with an average thickness of 70-80 cm, including a 10-cm humus layer (Yang et al, 2017…”

Section: Study Areamentioning

confidence: 99%

Factors promoting the natural regeneration of Larix principis-rupprechtii plantation in the Lvliang Mountains of central China

Liang

Wei

2020

PeerJ

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Given their complexity, targeted care and management of different areas and tree species are necessary for enhancing the natural regeneration of forests. Thus, an understanding of changes in the overstory and understory is essential for ensuring successful regeneration. Promoting the natural regeneration of Larix principis-rupprechtii plantations is considered challenging; indeed, regional sustainable development through natural regeneration of many stands has often been considered unattainable. Here, we studied several plots with varying extents of regeneration to identify the most important factors that affect regeneration. The plots were divided into three forest types based on the number of regenerating plants. For each type of plot, we measured various factors that might potentially affect regeneration. Representational difference analysis was used to identify the most important factors >9% contribution). Based on these factors, multiple corrections were made to construct a structural equation model of topography, stand structure, soil properties and litter to identify the most important factors driving variation in regeneration. Positive correlations were detected between regeneration with diameter at breast height (0.21) and litter thickness (0.57). Regeneration was negatively correlated with soil (−0.54) and slope (−0.48). Additionally, the number of regenerating plants and the height of regenerating plants were strongly positively correlated. However, there was no significant relationship between regeneration and litter accumulation, stand density, altitude, average tree height, total P and total N. Overall, our study showed that key factors for promoting natural regeneration include appropriate litter thickness, strong parent trees, a gentle slope and sufficient quantities of soil nutrients. Moreover, our findings provide a reference for the design of effective management and restoration plans.

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Effects of Simulated Wind Load on Leaf Photosynthesis and Carbohydrate Allocation in Eight Quercus Species

Cited by 8 publications

References 0 publications

Effect of Wind on the Relation of Leaf N, P Stoichiometry with Leaf Morphology in Quercus Species

Effect of Wind on the Relation of Leaf N, P Stoichiometry with Leaf Morphology in Quercus Species

Characteristics and factors influencing the natural regeneration of Larix principis-rupprechtii seedlings in northern China

Factors promoting the natural regeneration of Larix principis-rupprechtii plantation in the Lvliang Mountains of central China

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