Tree growth rate and soil nutrient status determine the shift in nutrient-use strategy of Chinese fir plantations along a chronosequence

Xiang, Wenhua; Xiang, Wenhua; Ouyang, Shuai; Xiao, Wei; Li, Shenggong; Chen, Liang; Lei, Pifeng; Deng, Xiaomin; Zeng, Yelin; Zeng, Lixiong; Peng, Changhui

doi:10.1016/j.foreco.2020.117896

Cited by 61 publications

(58 citation statements)

References 36 publications

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“…Previous studies have reported that N addition decreased plant N resorption (Lü et Kou et al (2017) observed that N enrichment led to increased P resorption, as plants increased P conservation during the transition from N-limitation to P-limitation. However, some studies found that N enrichment lowered P resorption (Lü et al 2013(Lü et al , 2020van Heerwaarden et al 2003), because N enrichment enhanced soil P availability by stimulating extracellular phosphatase enzyme activity (Chen et al 2020;Lü et al 2020). In the present study and in our previous studies at the same site, N addition signi cantly increased soil TP and AP concentrations (Table 1) and acid phosphatase enzyme activity (Peng et al 2019) but decreased PRE.…”

Section: Effect Of N Addition On Foliar Nutrient Resorptionsupporting

confidence: 54%

“…In the present study, foliar NRE (45-52%) and PRE (34-54%) of Moso bamboo in the control plots were lower than the global average NRE and PRE of evergreen angiosperms (56% and 58%, respectively) (Vergutz et al 2012), which may be attributed to the different tree species and soil nutrients. Furthermore, previous studies demonstrated that tree species with a high RE and low RP adopt a "conservative consumption" nutrient-use strategy, whereas those with a low RE and high RP adopt a "resource spending" strategy (Wright and Westoby 2003;Wu et al 2020). In the present study, foliar NRE and PRE of young bamboo were higher than those of the mature bamboo, whereas foliar PRP exhibited the opposite trend.…”

Section: Effect Of N Addition On Foliar Nutrient Resorptionsupporting

confidence: 42%

“…Nutrient resorption, a physiological process by which plants reallocate nutrients from senescent structures to other living tissues for later use (Clark 1977;Turner 1977 2020; Wu et al 2020). Nutrient RE is the difference between the amount of a given nutrient in green versus fully senesced tissue relative to the amount in green tissue, and nutrient RP is the absolute level of nutrients found in senesced leaves (Chang et al 2017;Killingbeck 1996).…”

Section: Introductionmentioning

confidence: 99%

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Biochar Amendment Alters The Nutrient-Use Strategy of Moso Bamboo Under N Additions

Gao

Zhang

et al. 2020

Preprint

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Background: While we know that N and biochar fertilizers affect soil nutrient concentrations and plant nutrient uptake, our understanding of how combined applications of N and biochar affect plant nutrient resorption in plantations is largely inadequate. A field experiment was conducted to investigate the effects of N (0, 30, 60, and 90 kg N ha-1 yr-1 or N0, N30, N60, and N90), in combination with biochar (0, 20, and 40 t biochar ha-1 or BC0, BC20, and BC40) on N and P resorption by young and mature bamboo plants as well as the relationship between nutrient resorption and leaf nutrient and soil concentrations. Fresh and senescent leaf samples were collected in July 2016 and March 2017, respectively.Results: Young bamboo showed significantly greater foliar N resorption efficiency (NRE) and P resorption efficiency (PRE) than mature bamboo. N additions alone significantly increased the N resorption proficiency (NRP) and P resorption proficiency (PRP) but decreased the NRE and PRE of both young and mature bamboo. In both the N-free (control) and N addition treatments, biochar amendments significantly reduced the foliar NRE and PRE of young bamboo but had the opposite effect on mature bamboo. Foliar NRE and PRE were significantly correlated with fresh leaf N and P concentrations and soil total P concentration. Conclusion: Our findings suggest that N addition inhibits plant nutrient resorption and alters the nutrient-use strategy of young and mature bamboo from “conservative consumption” to “resource spending.” Furthermore, biochar amendment enhanced the negative priming effect of N addition on nutrient resorption of young bamboo but reduced the negative effect on that of mature bamboo. This study provides new insights into the combined effects of N and biochar additions on the nutrient resorption of Moso bamboo and may assist in improving fertilization strategies in Moso bamboo plantations.

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Section: Effect Of N Addition On Foliar Nutrient Resorptionsupporting

confidence: 54%

Section: Effect Of N Addition On Foliar Nutrient Resorptionsupporting

confidence: 42%

Section: Introductionmentioning

confidence: 99%

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Biochar Amendment Alters The Nutrient-Use Strategy of Moso Bamboo Under N Additions

Gao

Zhang

et al. 2020

Preprint

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“…In the present study, foliar NRE (45-52%) and PRE (34-54%) of Moso bamboo in the control plots were lower than the (Wright and Westoby, 2003;Wu et al, 2020).…”

Section: Effect Of N Addition On Foliar Nutrient Resorptioncontrasting

confidence: 52%

“…Nutrient resorption – a physiological process by which plants reallocate nutrients from senescent structures to other living tissues for later use ( Clark, 1977 ; Turner, 1977 ; Yuan and Chen, 2015 ) – can improve nutrient utilization ( Chapin, 1980 ; Vitousek, 1984 ; Wu et al, 2020 ) and reduce plant nutrient uptake from the environment ( Brant and Chen, 2015 ; Yuan and Chen, 2015 ; Lü et al, 2020 ). Furthermore, nutrient resorption is an important strategy employed by plants to overcome nutrient limitations and meet their nutritional demands ( Killingbeck, 1996 ; Vergutz et al, 2012 ), and is most commonly quantified using nutrient resorption efficiency (RE) and resorption proficiency (RP; Lü et al, 2020 ; Wu et al, 2020 ). Nutrient RE is the difference between the amount of a given nutrient in green versus fully senesced tissue relative to the amount in green tissue, and nutrient RP is the absolute level of a nutrient found in senesced leaves ( Killingbeck, 1996 ; Chang et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Biochar Amendment Alters the Nutrient-Use Strategy of Moso Bamboo Under N Additions

Gao

Zhang

et al. 2021

Front. Plant Sci.

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Nutrient resorption can affect plant growth, litter decomposition, and nutrient cycling. Although the effects of nitrogen (N) and biochar fertilizers on soil nutrient concentrations and plant nutrient uptake have been studied, an understanding of how combined applications of N and biochar affect plant nutrient resorption in plantations is lacking. In this study, we applied N (0, 30, 60, and 90 kg N ha−1 yr−1 defined as N0, N30, N60, and N90, respectively) and biochar (0, 20, and 40 t biochar ha−1 defined as BC0, BC20, and BC40, respectively) to the soil of a Moso bamboo plantation. We investigated the effects of these treatments on N and phosphorus (P) resorption by young and mature bamboo plants, as well as the relationships between nutrient resorption and leaf and soil nutrient concentrations. Young bamboo showed significantly greater foliar N resorption efficiency (NRE) and P resorption efficiency (PRE) than mature bamboo. N addition alone significantly increased the N resorption proficiency (NRP) and P resorption proficiency (PRP) but significantly decreased the NRE and PRE of both young and mature bamboo. In both the N-free and N-addition treatments, biochar amendments significantly reduced the foliar NRE and PRE of young bamboo but had the opposite effect on mature bamboo. Foliar NRE and PRE were significantly negatively correlated with fresh leaf N and P concentrations and soil total P concentration but significantly positively correlated with soil pH. Our findings suggest that N addition inhibits plant nutrient resorption and alters the nutrient-use strategy of young and mature bamboo from “conservative consumption” to “resource spending.” Furthermore, biochar amendment enhanced the negative effect of N addition on nutrient resorption in young bamboo but reduced the negative effect on that of mature bamboo under N-addition treatments. This study provides new insights into the combined effects of N and biochar on the nutrient resorption of Moso bamboo and may assist in improving fertilization strategies in Moso bamboo plantations.

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Leaf nutrient resorption differs among canopy and understory plant species in subtropical Eucalyptus and Acacia plantations

et al. 2022

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Although plants are known to conserve nutrients by resorbing them from senescing leaves, how resorption of foliar macro‐ and micronutrients is affected by plant growth form (e.g., trees, shrubs, and ferns) and forest age are not well understood. The current study was conducted in four subtropical monoculture plantations: Eucalyptus and Acacia plantations in 14 and 35 years old, respectively. Leaf resorption efficiencies (REs) and resorption proficiencies (RPs) of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), and manganese (Mn) of the canopy trees and understory shrubs and ferns were determined. N, P, and K but not Ca and Mn were generally resorbed from senescing leaves. RE was significantly higher for P than N, indicating that P was more limiting than N in the subtropical plantations. Nutrient REs did not differ with plantation age, while nutrient RPs generally tended to be lower in the 14‐year‐old than in the 35‐year‐old plantations. REs significantly differed among canopy and understory plant species with different growth forms, that is, NRE, PRE, and KRE values were much higher in woody plants (especially the canopy tree species) than in ferns. REs were correlated with foliar nutrient concentrations but not with soil nutrient concentrations. Our findings suggest that resorption of nutrients from senescing leaves differs among canopy and understory plants, and implicate that introducing native tree species into these plantations could be implemented for accelerating the community succession and further improving the multifunctionality.

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Tree growth rate and soil nutrient status determine the shift in nutrient-use strategy of Chinese fir plantations along a chronosequence

Cited by 61 publications

References 36 publications

Biochar Amendment Alters The Nutrient-Use Strategy of Moso Bamboo Under N Additions

Biochar Amendment Alters The Nutrient-Use Strategy of Moso Bamboo Under N Additions

Biochar Amendment Alters the Nutrient-Use Strategy of Moso Bamboo Under N Additions

Leaf nutrient resorption differs among canopy and understory plant species in subtropical Eucalyptus and Acacia plantations

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