Root stoichiometric dynamics and homeostasis of invasive species Phyllostachys edulis and native species Cunninghamia lanceolata in a subtropical forest in China

Peng, Chao; Tu, Jia; Yang, Moon-Sik; Meng, Yong; Li, Meiqun; Ai, Wensheng

doi:10.1007/s11676-020-01253-0

Cited by 7 publications

(5 citation statements)

References 31 publications

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“…This finding contrasts with most previous studies, which suggest that leaves maintain strict nutrient homeostasis to ensure normal photosynthesis, a process essential for plant growth and development (Aerts and Chapin, 2000;Wang et al, 2018;Wang K. et al, 2021). The above results exceeded our expectation that mixed stands promote nutrient homeostasis in trees, where Chinese fir and mixed species showed nonhomeostasis in branch, trunk, and bark, which seems to indicate that different tree species in mixed stands prefer a more conservative nutrient allocation strategy for branch, trunk, and bark (Peng et al, 2021;Wang K. et al, 2021). And our results also indicated the presence of lower N and P concentrations in these several organs (Figures 2E,F).…”

Section: Imbalance and Stabilization Of C N And P Stoichiometry In Tr...contrasting

confidence: 75%

“…It is generally accepted that autotrophs have flexible homeostasis, which can help them cope with changing habitats (Sterner and Elser, 2002;Persson et al, 2010). However, several recent studies have noted the complex status of homeostasis in plants (Wang et al, 2018;Peng et al, 2021;Bagedeng et al, 2022). It has been discovered that different organs of trees exhibit different homeostasis, which is attributed to fundamental trade-offs in plant nutrient investments (Yu et al, 2010;Wang et al, 2019).…”

Section: Imbalance and Stabilization Of C N And P Stoichiometry In Tr...mentioning

confidence: 99%

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Tree–litter–soil system C:N:P stoichiometry and tree organ homeostasis in mixed and pure Chinese fir stands in south subtropical China

Zhang,

Li,

Wang

et al. 2024

Front. For. Glob. Change

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IntroductionCultivation of Chinese fir (Cunninghamia lanceolata) have alleviated timber shortages and mixed stands with Chinese fir and indigenous species represent a sustainable forestry model. Studying system nutrient balance and tree nutrient homeostasis can provide insights into the ecological advantages of Chinese fir mixed stands and guide the management of plantations.MethodsMixed Chinese fir plantations with two native broadleaf species (Michelia macclurei and Mytilaria laosensis) and pure Chinese fir stands were examined for our study. The responses in carbon (C), nitrogen (N), and phosphorus (P) distribution and their stoichiometric characterization in the tree–litter–soil system to stand changes were evaluated. In addition, the ecological stoichiometric homeostasis of leaves, branches, trunks, bark and roots was used to measure the trees’ adaptive capacity to stand changes.ResultsThe results showed that the mixed stands of Michelia macclurei and Chinese fir significantly increased soil OC, TN, and TP, and improved the carbon sequestration and nutrient storage functions of the plantations. The mixed stands improved the litter mass and C:N and C:P to different degrees. The soil N and P imbalance reduced the leaf N:P, resulting in N limitation of different trees, while the principal component analysis showed that the improvement of soil TN in the mixed plantation alleviated the N limitation. In addition, mixed stands reduced N, P, and N:P homeostasis in branch, trunk, and bark of some Chinese fir trees, whereas mixed species showed flexibility in leaf N:P homeostasis.DiscussionTherefore, the selection of mixed species for mixed forests is a critical factor to consider when creating mixed plantations. These results contribute to our understanding of the ecological stoichiometry of fir plantations and are of considerable importance for the sustainable development of plantations as well as for the response to global climate change.

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Section: Imbalance and Stabilization Of C N And P Stoichiometry In Tr...contrasting

confidence: 75%

Section: Imbalance and Stabilization Of C N And P Stoichiometry In Tr...mentioning

confidence: 99%

Tree–litter–soil system C:N:P stoichiometry and tree organ homeostasis in mixed and pure Chinese fir stands in south subtropical China

Zhang,

Li,

Wang

et al. 2024

Front. For. Glob. Change

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“…Hence, the collection was done based on the classification of ages for bamboo and species for broadleaf trees. Bamboo age is represented as “du” to indicate the number of times it regenerates its leaves ( Lin, 2012 ), and display the phenomenon of “on-year” production ( Peng et al., 2020 ). Bamboo regenerates its leaves once a year in the first year, and once every two years thereafter, resulting in one “du” (I du) representing 1 year old, two “du” (II du) representing 2 and 3 years old, three “du” (III du) corresponding to 4 and 5 years old, and four “du” (IV du) corresponding to 6 and 7 years old ( Lin, 2012 ).…”

Section: Methodsmentioning

confidence: 99%

Trait divergence and opposite above- and below-ground strategies facilitate moso bamboo invasion into subtropical evergreen broadleaf forest

Yu,

Le,

Peñuelas

et al. 2024

Front. Plant Sci.

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Understanding the invasion of moso bamboo (Phyllostachys edulis) into adjacent evergreen broadleaf forest based on functional traits is crucial due to its significant influence on ecosystem processes. However, existing research has primarily focused on above- or below-ground traits in isolation, lacking a comprehensive integration of both. In this study, we conducted a trait-based analysis including 23 leaf traits and 11 root traits in three forest types - bamboo forest, mixed bamboo and broadleaf forest, and evergreen broadleaf forest - to investigate trait differences, phenotypic integration, and above- and below-ground resource strategies in bamboo and broadleaf species. Our findings demonstrated significant differences in leaf and root key traits between bamboo and broadleaf species, strongly supporting the “phenotypic divergence hypothesis”. Bamboo exhibited stronger trait correlations compared to broadleaf species, indicating higher phenotypic integration. Above- and below-ground strategies were characterized by trade-offs rather than coordination, resulting in a multi-dimensional trait syndrome. Specifically, a unidimensional leaf economics spectrum revealed that bamboo with higher leaf N concentrations (LNC), P concentrations (LPC), and specific leaf area (SLA) adopted a “fast acquisitive” above-ground strategy, while broadleaf species with thicker leaves employed a “slow conservative” above-ground strategy. A two-dimensional root trait syndrome indicated a “conservation” gradient with bamboo adopting a “slow conservative” below-ground strategy associated with higher root tissue density (RTD), and broadleaf species exhibiting a “fast acquisitive” below-ground strategy linked to higher root N concentrations (RNC) and P concentrations (RPC), and a “collaboration” gradient probably ranging from broadleaf species with a “do-it-yourself” strategy characterized by high specific root length (SRL), to bamboo adopting an “outsourcing” strategy with thicker roots. In conclusion, key trait divergence from coexisting broadleaf species, higher phenotypic integration, and multi-dimensional opposite above- and below-ground resource strategies confer competitive advantages to moso bamboo, shedding light on the mechanistic understanding of its invasion into subtropical evergreen broadleaf forest and providing theoretical guidance for maintaining the stability of subtropical forest ecosystem.

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“…Soil resource gradients, stand age, and plant species are important factors that influence root traits [55,56]. Peng, C [57] found that the root biomass and length density of Moso bamboo mixed with Cunninghamia lanceolata increased as the proportion of Moso bamboo increased. This is consistent with the decrease in root biomass, root length, and root volume of Moso bamboo after mixing with Cunninghamia lanceolata.…”

Section: Root Growth and Nutrient Uptakementioning

confidence: 99%

Introducing Native Tree Species Alter the Soil Organic Carbon, Nitrogen, Phosphorus, and Fine Roots in Moso Bamboo Plantations

Ning,

Chen,

Gao

et al. 2024

Forests

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Bamboo and wood-mixed forests are management models that remarkably enhance the balance and productivity of bamboo ecosystems. However, the effects of this model on soil nutrients and enzyme activities remain largely unknown. This study compared the soil organic carbon, nitrogen, phosphorus, and enzyme activity, along with the characteristics of fine roots in pure Moso bamboo plantations (CK) and those mixed with Liriodendron chinense (ML), Sassafras tzumu (MS), Cunninghamia lanceolata (MC), and Pseudolarix amabilis (MP). The results showed that mixed forests improve carbon pools in 0–40 cm soil layers, increasing the total organic C(TOC), free particulate organic C (fPOC), occluded particulate organic C (oPOC), hot-water-extractable organic C (DOC), and mineral-associated organic C (MOC). They also increase soil total N, total P, available N, available P, NH4+-N, NO3−-N, inorganic P, organic P, and microbial biomass N. Bacterial and fungal abundances, along with enzyme activities (urease, acid phosphatase, polyphenol oxidase, peroxidase, and β-glucosidase), also improved. MP and MS were the most effective. Moreover, MS and MP supported a higher biomass and length of fine root and increased the nitrogen and phosphorus uptake of Moso bamboo. In conclusion, Sassafras tzumu and Pseudolarix amabilis are optimal for mixed planting, offering substantial benefits to soil nutrient dynamics and preventing soil quality decline in Moso bamboo forests, thereby supporting better nutrient cycling and carbon sequestration. This research offers insights into enhancing soil quality through diversified Moso bamboo forestry.

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Root stoichiometric dynamics and homeostasis of invasive species Phyllostachys edulis and native species Cunninghamia lanceolata in a subtropical forest in China

Cited by 7 publications

References 31 publications

Tree–litter–soil system C:N:P stoichiometry and tree organ homeostasis in mixed and pure Chinese fir stands in south subtropical China

Tree–litter–soil system C:N:P stoichiometry and tree organ homeostasis in mixed and pure Chinese fir stands in south subtropical China

Trait divergence and opposite above- and below-ground strategies facilitate moso bamboo invasion into subtropical evergreen broadleaf forest

Introducing Native Tree Species Alter the Soil Organic Carbon, Nitrogen, Phosphorus, and Fine Roots in Moso Bamboo Plantations

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