Changes in the stoichiometry of <i>Castanopsis fargesii</i> along an elevation gradient in a Chinese subtropical forest

Liu, Danping; Zheng, Dong; Xu, Yan; Chen, Yifei; Wang, Hesong; Ku, Wang; Liu, Xiaoli; Chen, Changxiong; Xia, Jiangjiang; Jin, Shaofei

doi:10.7717/peerj.11553

Cited by 3 publications

(2 citation statements)

References 48 publications

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“…These changes can subsequently influence leaf shape and physiological traits, including leaf thickness, which can have an impact on the concentration of leaf elements (Li et al, 2021; Zhou et al, 2013). Liu, Zheng, et al (2021) found that K and Ca in Castanopsis fargesii leaves were significantly correlated with ALT, while Mg had no significant relationship with ALT, which is different from the results of this study. The inconsistency in results could potentially be attributed to temperature variations.…”

Section: Discussioncontrasting

confidence: 99%

Leaf stoichiometry of potassium, calcium, and magnesium in tropical plants: Responses to climatic and geographical variations—A case study from Hainan Island

Wang,

Chen,

et al. 2024

Land Degrad Dev

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Grasping how climate change will affect the tropical region's leaf potassium, calcium, and magnesium content is pivotal for enhancing our comprehension of plant stoichiometry. Currently, there is limited research on leaf potassium, calcium, and magnesium in tropical plants, which is particularly evident with the increasing importance of tropical rainforest biodiversity studies. This study investigated the impact of geographical and climatic factors on the leaf potassium, calcium, and magnesium content in 346 plants (including woody plants, herbs, and vines) on Hainan Island. The findings demonstrated that the average leaf potassium, calcium, and magnesium contents were 5.77, 11.86, and 2.92 mg·g−1, respectively, which were less than that in the Chinese flora. Mean annual precipitation (MAP) has a promoting effect on leaf potassium content (p < 0.05), suggesting that artificial potassium fertilization is needed due to the increasing MAP. Leaf potassium and magnesium content were positively correlated with latitude (p < 0.05) and longitude (p < 0.01); and there was a negative correlation between leaf calcium content and latitude (p < 0.05), showing that geographical factors have a significant impact on the potassium, calcium, and magnesium content of plant leaves. Additionally, the variables regulating leaf potassium, calcium, and magnesium varied across woody plants, herbs, and vines. Therefore, it is necessary to make corresponding adjustments according to local conditions and the plant functional types during nutrient management. In conclusion, this study sheds light on their potential responses to global changes and is instrumental in informing the management of these nutrients in tropical rainforest plants.

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Section: Discussioncontrasting

confidence: 99%

Leaf stoichiometry of potassium, calcium, and magnesium in tropical plants: Responses to climatic and geographical variations—A case study from Hainan Island

Wang,

Chen,

et al. 2024

Land Degrad Dev

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“…Relationships between leaf stoichiometry and environmental factors, including soil nutrients and geographical and climatic factors, were widely explored at various scales including regional and global scales (e.g., McGroddy et al, 2004 ; Reich and Oleksyn, 2004 ; Sardans et al, 2011 ; Du et al, 2017 ; Tian et al, 2018 ; Qin et al, 2021 ). Elevation is a crucial factor and can affect plant leaf stoichiometry by altering the combination of heat and water, soil properties, and vegetation community composition (Bo et al, 2020 ; Liu et al, 2021 ). However, there is little consensus on leaf stoichiometric characteristics as they change along an elevation gradient.…”

Section: Introductionmentioning

confidence: 99%

Response of leaf stoichiometry of Potentilla anserina to elevation in China's Qilian Mountains

Zhang

Qi²,

Cao³

et al. 2022

Front. Plant Sci.

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Plants adapt to changes in elevation by regulating their leaf ecological stoichiometry. Potentilla anserina L. that grows rapidly under poor or even bare soil conditions has become an important ground cover plant for ecological restoration. However, its leaf ecological stoichiometry has been given little attention, resulting in an insufficient understanding of its environmental adaptability and growth strategies. The objective of this study was to compare the leaf stoichiometry of P. anserina at different elevations (2,400, 2,600, 2,800, 3,000, 3,200, 3,500, and 3,800 m) in the middle eastern part of Qilian Mountains. With an increase in elevation, leaf carbon concentration [(C)leaf] significantly decreased, with the maximum value of 446.04 g·kg−1 (2,400 m) and the minimum value of 396.78 g·kg−1 (3,500 m). Leaf nitrogen concentration [(N)leaf] also increased with an increase in elevation, and its maximum and minimum values were 37.57 g·kg−1 (3,500 m) and 23.71 g·kg−1 (2,800 m), respectively. Leaf phosphorus concentration [(P)leaf] was the highest (2.79 g·kg−1) at 2,400 m and the lowest (0.91 g·kg−1) at 2,800 m. The [C]leaf/[N]leaf decreased with an increase in elevation, while [N]leaf/[P]leaf showed an opposite trend. The mean annual temperature, mean annual precipitation, soil pH, organic carbon, nitrogen, and phosphorus at different elevations mainly affected [C]leaf, [N]leaf, and [P]leaf. The growth of P. anserina in the study area was mainly limited by P, and this limitation was stronger with increased elevation. Progressively reducing P loss at high elevation is of great significance to the survival of P. anserina in this specific region.

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Impacts of altitude on plant green leaf, fresh litter, and soil stoichiometry in subtropical forests

Zhu,

Zhou,

Peng

et al. 2024

Front. For. Glob. Change

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BackgroundEcological stoichiometric characteristics of carbon (C), nitrogen (N), phosphorus (P), and potassium (K) serve as crucial indicators of nutrient cycling and limitation in terrestrial ecosystems. However, our current understanding of stoichiometric characteristics in subtropical forests and their response to different climate conditions is still limited.MethodsWe selected six altitudes ranging from 700 m to 1,200 m to simulate different climate conditions of an evergreen broadleaf forest in Wuyi Mountain, Fujian Province, China. We investigated C, N, P, and K stoichiometry and homeostasis in the green leaves, newly senesced leaf litter (fresh litter), and soil of this forest.ResultsLeaf P and K levels showed a decline with increasing altitude. Notably, the stoichiometric ratios in different components exhibited a bimodal distribution along the altitudinal gradient. Additionally, a decline trend of N resorption efficiencies was observed as altitude increased. Moreover, weak homeostasis was observed in P and K in green leaves. These findings highlighted the significant impact of altitude on the stoichiometry in evergreen broadleaf forest. This study also contributed to our understanding of the nutrient cycling mechanism and plant growth strategies of evergreen forests under different climate conditions.

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Changes in the stoichiometry of Castanopsis fargesii along an elevation gradient in a Chinese subtropical forest

Cited by 3 publications

References 48 publications

Leaf stoichiometry of potassium, calcium, and magnesium in tropical plants: Responses to climatic and geographical variations—A case study from Hainan Island

Leaf stoichiometry of potassium, calcium, and magnesium in tropical plants: Responses to climatic and geographical variations—A case study from Hainan Island

Response of leaf stoichiometry of Potentilla anserina to elevation in China's Qilian Mountains

Impacts of altitude on plant green leaf, fresh litter, and soil stoichiometry in subtropical forests

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