Variations and patterns of C and N stoichiometry in the first five root branch orders across 218 woody plant species

You, Chengming; Li, Jihong; Yang, Kun; Tan, Bo; Yin, Rui; Li, Han; Zhang, Li; Cui, Xinglei; Liu, Yang; Wang, Lixia; Liu, Yang; Chen, Lianghua; Yuan, Yaling; Li, Jiao; Sardans, Jordi; Zhang, Jian; Xu, Zhenfeng; Peñuelas, Josep

doi:10.1111/nph.18870

Cited by 3 publications

(1 citation statement)

References 68 publications

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“…To our knowledge, research on latitudinal gradients of seed nutrient concentrations is particularly scarce (De Frenne et al 2010). Given the importance of seed nutrients for initial seedling growth, surprisingly little attention has been paid to seeds compared to plant leaves and ne roots You et al 2023). Meanwhile, these patterns observed in leaves and roots, which can be explained by the limitation of soil nutrients at higher latitudes (geochemical hypothesis) and by direct temperature effects on plant physiology (growth rate hypothesis) (Lovelock et al 2007;Elser et al 2000), may not comparable to seed.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the geographic variation in seed traits of a native species (Phragmites australis) to an alien invasive species (Spartina alterniflora) in Chinese coastal marshes

Wang,

Tong,

Marrs

et al. 2024

Preprint

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Seeds are crucial for both maintaining existing plant populations and for colonizing new areas, and knowledge of traits helps us understand the colonization potential of successful species. One way to study seed-trait variation is to make comparisons along latitudinal gradients. Usually, however, only geographic variation in seed mass is studied systematically and knowledge of other traits is lacking, e.g. traits associated with seed production and nutritional status. Moreover, there have been few comparisons between native species and exotic invasives. Here, therefore, we compared morphological traits and nutrient concentrations of the seed of two competing species, a native species (Phragmites australis) and an alien one (Spartina alterniflora) along a 20o-latitudinal gradient of the Chinese coast and investigated which environmental factors were important in driving differences between these two contrasting species. Significant differences were found between the two species for nine of the 13 traits in their responses to latitude. Furthermore, temperature-mediated climate factors were the dominant variables influencing the latitudinal variation of seed traits in both species compared to soil properties. For the first time, our study shows the latitudinal variations in seed traits of the native P. australis and alien S. alterniflora. Our study predicts that the greater fecundity of high-latitude S. alterniflora populations poses a threat to P. australis, the native competitor.

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Section: Introductionmentioning

confidence: 99%

Comparison of the geographic variation in seed traits of a native species (Phragmites australis) to an alien invasive species (Spartina alterniflora) in Chinese coastal marshes

Wang,

Tong,

Marrs

et al. 2024

Preprint

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Nitrogen addition and plant functional type mediate the mesofauna-driven litter element release of subtropical forest

Li,

Liu,

Yin

et al. 2024

Plant Soil

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Global patterns and controlling factors of tree bark C : N : P stoichiometry in forest ecosystems consistent with biogeochemical niche hypothesis

Gong,

Sardans,

Huang

et al. 2024

New Phytologist

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Summary Bark serves crucial roles in safeguarding trees physically and chemically, while also contributing to nutrient cycling and carbon sequestration. Despite its importance, the broader biogeographical patterns and the potential factors influencing bark C : N : P stoichiometry in forest ecosystems remain largely unknown. In this study, we compiled a comprehensive dataset comprising carbon (C), nitrogen (N), and phosphorus (P) concentrations in bark with 1240 records from 550 diverse forest sites to systematically analyze the large‐scale patterns and the factors controlling bark C : N : P stoichiometry. The geometric means of bark C, N, and P concentrations were found to be 493.17 ± 1.75, 3.91 ± 0.09, and 0.2 ± 0.01 mg g−1, respectively. Correspondingly, the C : N, C : P, and N : P mass ratios were 135.51 ± 8.11, 3313.19 ± 210.16, and 19.16 ± 0.6, respectively. Bark C : N : P stoichiometry exhibited conspicuous latitudinal trends, with the exception of N : P ratios. These patterns were primarily shaped by the significant impacts of climate, soil conditions, and plant functional groups. However, the impact of evolutionary history in shaping bark C : N : P stoichiometry outweigh climate, soil, and plant functional group, aligning with the biogeochemical niche (BN) hypothesis. These finding enhance our understanding of the spatial distribution of bark nutrient stoichiometry and have important implications for modeling of global forest ecosystem nutrient cycles in a changing environment.

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Variations and patterns of C and N stoichiometry in the first five root branch orders across 218 woody plant species

Cited by 3 publications

References 68 publications

Comparison of the geographic variation in seed traits of a native species (Phragmites australis) to an alien invasive species (Spartina alterniflora) in Chinese coastal marshes

Comparison of the geographic variation in seed traits of a native species (Phragmites australis) to an alien invasive species (Spartina alterniflora) in Chinese coastal marshes

Nitrogen addition and plant functional type mediate the mesofauna-driven litter element release of subtropical forest

Global patterns and controlling factors of tree bark C : N : P stoichiometry in forest ecosystems consistent with biogeochemical niche hypothesis

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