Does foliar nutrient resorption regulate the coupled relationship between nitrogen and phosphorus in plant leaves in response to nitrogen deposition?

You, Chengming; Wu, Fuzhong; Yang, Wanqin; Xu, Zhenfeng; Tan, Bo; Zhang, Li; Yue, Kai; Ni, Xiangyin; Li, Han; Chang, Chenhui; Fu, Changkun

doi:10.1016/j.scitotenv.2018.07.186

Cited by 56 publications

(22 citation statements)

References 70 publications

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“…Furthermore, our result revealed a less stoichiometric response magnitude of leaf litter to P and N + P addition than leaf itself (Figures and ), which was contrary to our expectation that high nutrient‐induced decrease in leaf resorption should increase litter stoichiometric response in comparison with leaf itself (Brant & Chen, ; You et al, ). It is likely because we sampled leaf from tree saplings due to the difficulty in getting leaf sample from adult trees (height > 30 m), but leaf litter is mostly from adult trees.…”

Section: Discussioncontrasting

confidence: 99%

“…This resource allocation strategy is necessary to maintain or increase tree photosynthesis under severe light competition, which leads to a greater leaf nutrient demand (Hautier et al, 2009) and stoichiometric response (Güsewell, 2004;María et al, 2005). Furthermore, our result revealed a less stoichiometric response magnitude of leaf litter to P and N + P addition than leaf itself (Figures 1 and 2), which was contrary to our expectation that high nutrientinduced decrease in leaf resorption should increase litter stoichiometric response in comparison with leaf itself (Brant & Chen, 2015;You et al, 2018). It is likely because we sampled leaf from tree saplings due to the difficulty in getting leaf sample from adult trees (height > 30 m), but leaf litter is mostly from adult trees.…”

Section: Different Responses Of N:p Ratio Among Multiple Ecosystem Cocontrasting

confidence: 99%

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Different Responses and Links of N:P Ratio Among Ecosystem Components Under Nutrient Addition in a Temperate Forest

et al. 2019

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Nitrogen (N) and phosphorus (P) deposition have increased rapidly during the past decades, which likely changes soil N and P availability. These soil resource variations will further affect N, P concentration and N:P ratio in different ecosystem pools (i.e., soil, leaf, litter, root, and microbe). Various pools may show different stoichiometric responses to nutrient enrichment, with a further influence on ecosystem nutrient cycling. However, few studies have been conducted to fully examine the stoichiometric responses of different pools and their nutrient relationships in a given ecosystem. Here we established a 2‐year experiment of N (10 g m−2 year−1), P (10 g m−2 year−1), and combined N + P addition in a temperate forest of Changbai Mountain. We found significantly different N:P stoichiometric responses among various ecosystem components under P addition, with the leaves showing a higher response than litter and root while microbe behaving the lowest response. The responses of N:P ratio to N + P addition were similar with those under P addition in all pools. In most cases, N addition did not significantly affect N:P ratio. These results indicate that N:P ratio response was mainly determined by changes in P rather than N concentration in this temperate forest ecosystem. Moreover, we found tighter N:P stoichiometric correlations than elements among diverse ecosystem components under nutrient addition. Overall, our research reveals different responses and tight links of element stoichiometric variations among various ecosystem components in face of nutrient enrichment. It calls our attention to considering stoichiometric changes in the whole ecosystem beyond individual plant organ or microbial component.

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Section: Discussioncontrasting

confidence: 99%

Section: Different Responses Of N:p Ratio Among Multiple Ecosystem Cocontrasting

confidence: 99%

Different Responses and Links of N:P Ratio Among Ecosystem Components Under Nutrient Addition in a Temperate Forest

et al. 2019

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“…N addition × P addition on plant N pools was indeed synergistic at both species and community levels, albeit antagonistic for plant N concentrations at community level (Figure ). N addition increases the demand for P by stimulating plant growth; thus, extra P addition could counterbalance this N‐induced P limitation, allowing the full N fertilization effect to be expressed (You et al, ). In this case, the N addition effect could be larger in the combined treatment with P than in the N‐only treatment, resulting in a synergistic N addition × P addition effect.…”

Section: Discussionmentioning

confidence: 99%

Responses of nitrogen concentrations and pools to multiple environmental change drivers: A meta‐analysis across terrestrial ecosystems

Yue

Peng

Fornara

et al. 2019

Global Ecol Biogeogr

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Aim We sought to understand how the individual and combined effects of multiple environmental change drivers differentially influence terrestrial nitrogen (N) concentrations and N pools and whether the interactive effects of these drivers are mainly antagonistic, synergistic or additive. Location Worldwide. Time period Contemporary. Major taxa studied Plants, soil, and soil microbes in terrestrial ecosystems. Methods We synthesized data from manipulative field studies from 758 published articles to estimate the individual, combined and interactive effects of key environmental change drivers (elevated CO2, warming, N addition, phosphorus addition, increased rainfall and drought) on plant, soil, and soil microbe N concentrations and pools using meta‐analyses. We assessed the influences of moderator variables on these effects through structural equation modelling. Results We found that (a) N concentrations and N pools were significantly affected by the individual and combined effects of multiple drivers, with N addition (either alone or in combination with another driver) showing the strongest positive effects; (b) the individual and combined effects of these drivers differed significantly between N concentrations and N pools in plants, but seldom in soils and microbes; (c) additive effects of driver pairs on N concentrations and pools were much more common than synergistic or antagonistic effects across plants, soils and microbes; and (d) environmental and experimental factors were important moderators of the individual, combined and interactive effects of these drivers on terrestrial N. Main conclusions Our results indicate that terrestrial N concentrations and N pools, especially those of plants, can be significantly affected by the individual and combined effects of environmental change drivers, with the interactive effects of these drivers being mostly additive. Our findings are important because they contribute to the development of models to better predict how altered N availability affects ecosystem carbon cycling under future environmental changes.

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“…The averages of NRE and PRE in the two plantations were 39.91% and 34.61%, respectively (Fig. 4 a,b), which were lower than those in global terrestrial forests (47.4% to 62.1% and 53.6% to 64.9%, respectively) (Vergutz et al 2012;You et al 2018). The unexpectedly low NuRE may be explained by the high variation nutrient use strategies in subtropical forests.…”

Section: Leaf N and P Concentrations And Nutrient Restrictionmentioning

confidence: 87%

Nutrient resorption and adaptation strategy characteristics of two plantations in subtropical China—Ecological stoichiometry

Pang¹,

Ma²,

Wang³

et al. 2021

Preprint

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Background and aims Leaf nutrients resorption is critical for considerations of how plants use and recycle nutrients in terrestrial ecosystems. However, information on nutrient resorption and adaptation strategies of the same plant species growing in areas with different geological backgrounds remain poorly understood. Methods We investigated one natural plantation of Pinus yunnanensis Franch. (PY) and one introduced plantation of Eucalyptus maideni F. Muell. (EM) growing under the same climatic conditions but different geological backgrounds (limestone, karst area vs clasolite, non-karst area) in Yunnan Province, China. The C, N, and P concentrations, nutrient restriction, nutrient resorption efficiency, stoichiometric homeostasis, and plant adaptation strategy indicators were investigated. Results The results showed that soil concentrations of C, N, and P were significantly higher in the karst areas compared to the non-karst areas both of the two plantations. Elemental composition of specific plant organs differed significantly between the two sites, while within sites, different organs showed different elemental compositions. In addition, leaf N: P ratios and leaf P resorption efficiencies indicated that plantations in subtropical China are mainly limited by P, which was more evident in the non-karst area. The PY plantation in both areas showed a “conservative consumption” nutrient use strategy, whereas the EM plantation in the two areas showed a “resource spending” nutrient use strategy. Conclusions Plants need to adapt physiologically and morphologically to the harsh conditions in karst areas, resulting in lower growth rates and biomass, more conservative nutrient use, and a high capacity to retain nutrients in the biomass. The findings of this study indicated that trees could synergistically accommodate leaf stoichiometry and nutrient resorption efficiencies in response to different soil types. Overall, our results provide support that the geological background should be considered during the process of vegetation restoration.

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Does foliar nutrient resorption regulate the coupled relationship between nitrogen and phosphorus in plant leaves in response to nitrogen deposition?

Cited by 56 publications

References 70 publications

Different Responses and Links of N:P Ratio Among Ecosystem Components Under Nutrient Addition in a Temperate Forest

Different Responses and Links of N:P Ratio Among Ecosystem Components Under Nutrient Addition in a Temperate Forest

Responses of nitrogen concentrations and pools to multiple environmental change drivers: A meta‐analysis across terrestrial ecosystems

Nutrient resorption and adaptation strategy characteristics of two plantations in subtropical China—Ecological stoichiometry

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Does foliar nutrient resorption regulate the coupled relationship between nitrogen and phosphorus in plant leaves in response to nitrogen deposition?

Cited by 56 publications

References 70 publications

Different Responses and Links of N:P Ratio Among Ecosystem Components Under Nutrient Addition in a Temperate Forest

Different Responses and Links of N:P Ratio Among Ecosystem Components Under Nutrient Addition in a Temperate Forest

Responses of nitrogen concentrations and pools to multiple environmental change drivers: A meta‐analysis across terrestrial ecosystems

Nutrient resorption and adaptation strategy characteristics of two plantations in subtropical China­—Ecological stoichiometry

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Nutrient resorption and adaptation strategy characteristics of two plantations in subtropical China—Ecological stoichiometry