Differential aboveground-belowground adaptive strategies to alleviate N addition-induced P deficiency in two alpine coniferous forests

Zhang, Peipei; Yin, Mingzhen; Zhang, Xinjun; Wang, Qitong; Wang, Ruihong; Yin, Huajun

doi:10.1016/j.scitotenv.2022.157906

Cited by 10 publications

(14 citation statements)

References 74 publications

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“…asperata forest, with a more pronounced P deficiency induced by N addition in this forest, which is indicated by the relatively higher leaf N : P ratio and lower leaf N to P resorption efficiency ratio (Fig. S1; Yin et al ., 2021; Zhang et al ., 2022). It has been reported that the initial soil nutrient conditions can determine the degree of P limitation under N addition (You et al ., 2018; Guo et al ., 2021).…”

Section: Discussionmentioning

confidence: 99%

“…The mean annual air temperature is 8.9°C, with a maximum monthly mean temperature of 18.8°C in July and a minimum of −1.1°C in January. The mean annual precipitation is 920 mm, of which most rainfall occurs during the periods of June to August (Zhang et al ., 2022). The soils in both forests are classified as Calcic Luvisol following the IUSS soil Taxonomy.…”

Section: Methodsmentioning

confidence: 99%

“…on the eastern Tibetan Plateau, China, to investigate how ECM hyphae affect soil P transformations and P availability under N deposition. Our previous studies have demonstrated that N addition reduced P availability for the trees in both forests, with the nutrient status showing a sign of transition from N‐ to P limitation (Yin et al ., 2021; Zhang et al ., 2022). The reduced P supply induced by N addition has already been indicated by decreased P concentrations and increased N : P ratios and acid phosphatase activity in leaves (Supporting Information Fig.…”

Section: Introductionmentioning

confidence: 99%

“…The reduced P supply induced by N addition has already been indicated by decreased P concentrations and increased N : P ratios and acid phosphatase activity in leaves (Supporting Information Fig. S1; Zhang et al ., 2022). In this study, by using in situ hyphal ingrowth cores to control the ingrowth of ECM fungal hyphae, we measured the concentrations of different soil P fractions and a set of key soil physiochemical (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Extraradical hyphae alleviate nitrogen deposition‐induced phosphorus deficiency in ectomycorrhiza‐dominated forests

et al. 2023

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Summary The continuous imbalance between nitrogen (N) and phosphorus (P) deposition is expected to shift many ecosystems from N‐ to P limitation. Extraradical hyphae of ectomycorrhizal (ECM) fungi play important roles in plant nutrient acquisition under nutrient deficiency. However, whether and how ECM hyphae enhance soil P availability to alleviate N‐induced P deficiency remains unclear. We investigated the impacts of ECM hyphae on transformations among different soil P fractions and underlying mechanisms under N deposition in two ECM‐dominated forests. Ectomycorrhizal hyphae enhanced soil P availability under N addition by stimulating mineralization of organic P (Po) and desorption and solubilization of secondary mineral P, as indicated by N‐induced increase in positive hyphal effect on plant‐available P pool and negative hyphal effects on Po and secondary mineral P pools. Moreover, ECM hyphae increased soil phosphatase activity and abundance of microbial genes associated with Po mineralization and inorganic P solubilization, while decreasing concentrations of Fe/Al oxides. Our results suggest that ECM hyphae can alleviate N‐induced P deficiency in ECM‐dominated forests by regulating interactions between microbial and abiotic factors involved in soil P transformations. This advances our understanding of plant acclimation strategies via mediating plant–mycorrhiza interactions to sustain forest production and functional stability under changing environments.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Extraradical hyphae alleviate nitrogen deposition‐induced phosphorus deficiency in ectomycorrhiza‐dominated forests

et al. 2023

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“…Variable soil nutrient levels and other disturbances are essential for the strategic use of nutrients by forest trees, where higher soil nutrient concentrations translate to their increased acquisition and storage in leaves (Yan et al, 2006). However, relative P de ciencies under nutrient imbalances were reported to reduce the P content of leaves in two alpine coniferous forests (Zhang et al, 2022). Historically, ecologists have proposed several hypotheses to support these phenomena, including the Law of the Minimum, the multiple limitation hypothesis, and the stability of limiting elements hypothesis (Baar, 1994;Han et al, 2011;Agren et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Nutrient utilization strategies and age-related changes in larix principis-rupprechtii forests of different origins

Liu¹,

Bo²,

Tan³

et al. 2023

Preprint

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Aims: Investigations into the nutrient content and changes in the stoichiometry and nutrient resorption strategies of different original forests during their development are of great significance toward the establishment of healthy, high-quality forest ecosystems. Methods: 24 sample plots with age gradients were established in natural Larix principis-rupprechtii forests and plantations, from which mature and senescent leaves, new branches, fine roots, and soil were collected for analysis. The carbon (C), nitrogen (N), and phosphorus (P) contents were determined, and the stoichiometric ratios and resorption efficiencies were calculated. Results and Conclusions: The soil organic carbon and total nitrogen of the forests accumulated with advancing age, while the total phosphorus decreased due to higher consumption. Plantation trees tended to store scarce nutrients within inactive plant structures to prevent nutrient loss, whereas natural forest trees maintained a stable nutrient concentration within their active organs. Plantation and natural forest trees adopted highly conservative N and P utilization strategies through improved resorption efficiencies. However, natural forest change was weaker than in plantations. The mature leaves, litter, branches, and fine roots of natural forestswere more susceptible to soil P concentrations, whereas those of their plantation counterparts were more affected by soil N. Nutrient concentrations within the active organs of plantation trees were more strongly dependent on soil than natural forests. We considered that natural forests likely possessed a more extensive range of strategies to deal with the variable compositions and concentrations of soil nutrients, which might strengthen their resilience against the effects of aging.

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Response of decomposition dynamics of ectomycorrhizal fungal fruit bodies to N addition depends on decomposition stage in a coniferous forest

Gao,

Zhu,

Zhang

et al. 2024

Applied Soil Ecology

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Differential aboveground-belowground adaptive strategies to alleviate N addition-induced P deficiency in two alpine coniferous forests

Cited by 10 publications

References 74 publications

Extraradical hyphae alleviate nitrogen deposition‐induced phosphorus deficiency in ectomycorrhiza‐dominated forests

Extraradical hyphae alleviate nitrogen deposition‐induced phosphorus deficiency in ectomycorrhiza‐dominated forests

Nutrient utilization strategies and age-related changes in larix principis-rupprechtii forests of different origins

Response of decomposition dynamics of ectomycorrhizal fungal fruit bodies to N addition depends on decomposition stage in a coniferous forest

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