Modeling of stomatal conductance to estimate stomatal ozone uptake by Fagus crenata , Quercus serrata , Quercus mongolica var. crispula and Betula platyphylla

Kinose, Yoshiyuki; Azuchi, Fumika; Uehara, Yui; Kanomata, Tomoaki; Kobayashi, Atsushi; Yamaguchi, Masahiro; Izuta, Takeshi

doi:10.1016/j.envpol.2014.07.030

Cited by 27 publications

(22 citation statements)

References 44 publications

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“…This may be attributed to the greater O 3 uptake via higher stomatal conductance of Q. mongolica (Fig. 5) (Kinose et al, 2014;Matyssek et al, 2015). Even though Q. serrata showed lower weighted mean A n than Q. mongolica (Fig.…”

Section: Discussionmentioning

confidence: 94%

“…crispula and Q. serrata) native to East Asia with a plastic shoot developmental pattern (Kikuzawa, 1983) was enhanced when grown under elevated O 3 and CO 2 through an O 3 -induced carbon allocation into shoots and CO 2 -enhanced photosynthesis exceeding O 3 impacts. Furthermore, as a greater cumulative O 3 uptake via higher stomatal conductance was observed in Q. mongolica than in Q. serrata (Kinose et al, 2014), O 3 impact on photosynthesis would be greater in the former species leading to a less enhancement in the growth. To test this hypothesis, we investigated the growth and photosynthetic responses in the seedlings of Q. mongolica and Q. serrata grown under free-air fumigation of elevated O 3 and CO 2 .…”

Section: Introductionmentioning

confidence: 89%

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Growth overcompensation against O3 exposure in two Japanese oak species, Quercus mongolica var. crispula and Quercus serrata, grown under elevated CO2

Kitao

Komatsu

Yazaki

et al. 2015

Environmental Pollution

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 89%

Growth overcompensation against O3 exposure in two Japanese oak species, Quercus mongolica var. crispula and Quercus serrata, grown under elevated CO2

Kitao

Komatsu

Yazaki

et al. 2015

Environmental Pollution

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“…In some temperate regions of East Asia, high N load could adversely affect growth, physiological functions, and nutrient status of Japanese forest tree species (Nakaji et al 2001). Additionally, N deposition has a significant influence on photosynthetic gas exchange and stomatal conductance in temperate trees (Kinose et al 2017;Tetteh et al 2015;Azuchi et al 2014;Kinose et al 2014). The effects of N deposition on forest ecosystems, even at a similar deposition rate and duration, are probably different for each region, and mainly depend on the dominant species, soil properties, and preexisting climatic conditions (Jiang et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Photosynthesis and growth responses of Fraxinus mandshurica Rupr. seedlings to a gradient of simulated nitrogen deposition

Wang

Zhang

et al. 2017

Annals of Forest Science

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& Key message During an N-deposition simulation experiment, we showed that low to medium addition of N had beneficial effects on growth and photosynthetic rates of Fraxinus mandshurica Rupr. seedlings, while beyond a threshold of 80 kg N ha −1 year −1 , performance plateaued and even declined at higher immissions. & Context Temperate forests are shifting from naturally N-limited toward N-saturated status with increasing N deposition. Yet, our knowledge regarding how seedling growth and physiology respond to excessive N input in temperate tree species remains very limited. & Aims The objective of this study was to examine growth and photosynthetic responses of F. mandshurica seedlings to a gradient of simulated N deposition. & Methods We conducted a 4-year study to investigate growth and photosynthetic responses of F. mandshurica seedlings to a large gradient of simulated N deposition (0, 20, 40, 60, 80, 100, and 120 kg N ha −1 year −1). Biomass accumulation and allocation, photosynthetic gas exchange, expression, and activities of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) in leaves were determined during the fourth growing season. Soil biochemical properties were measured to link them to the alterations in growth and photosynthetic traits across the N addition gradient. & Results Seedling growth and photosynthesis were dependent upon the rates of N deposition. The maximum rate of carboxylation (V c,max) and the net photosynthetic rate under saturating light (A sat) reached a maximum under 60 kg N ha −1 year −1. By contrast, highlevel N inputs (100 and 120 kg N ha −1 year −1) resulted in suboptimal values in biomass and photosynthetic activity. Nitrogen deposition also modulated the activity and expression of Rubisco in leaves with a maximum around 80-100 kg N ha −1 year −1. Redundancy analysis (RDA) showed that the changes of seedling growth and photosynthesis along the gradient of N deposition were mostly attributed to the variations of soil pH and total N content. & Conclusion Our data suggest that the threshold of N deposition is about 80 kg N ha −1 year −1 for F. mandshurica seedlings in this region. Excessive N input decreased performance on the seedling growth and photosynthesis.

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“…Likewise, although Vc max is known to depend on leaf N content (Walker et al, ), N addition appeared to not alter O 3 ‐induced suppression of Vc max ; Vc max sensitivity to N availability may be enhanced in the presence of high P availability (Walker et al, ). Moreover, N addition did not alter g s of trees and non‐woody plants, suggesting that soil N availability is not a major factor/parameter to be taken into account when developing general g s models for estimating stomatal O 3 uptake in risk assessments across species (Kinose et al, ).…”

Section: Discussionmentioning

confidence: 99%

Ozone will remain a threat for plants independently of nitrogen load

Feng

Shang

et al. 2019

Functional Ecology

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Elevated concentrations of ground‐level ozone (O3) and atmospheric nitrogen (N) deposition occur concurrently. The negative effects of elevated O3 on plants have been widely studied and are well understood nowadays. However, how the effects of elevated O3 on plants may be driven by N deposition remains an unsolved puzzle. We conducted a meta‐analysis and showed that the negative effects of elevated O3 on photosynthesis, stomatal conductance, growth and biomass production of semi‐natural and natural vegetation may remain unchanged by N deposition in the coming future under realistic increases in O3 concentrations (+20 to 40 ppb) and N deposition (up to 60 kg ha−1 year−1). The negative effect of elevated O3 on chlorophyll content is offset by soil N addition; however, the negative effect on biomasses is not offset by soil N addition. Across functional groups and O3 levels, N addition exacerbated O3 effects on root when N increased from 0–10 kg N ha−1 year−1 to 11–30 kg N ha−1 year−1. However, an analysis as per the plant functional group revealed that such a N‐dependent O3 effect was significant only in perennial non‐woody plants, and was non‐significant when only realistic increases in O3 concentrations were considered. Likewise, N addition appeared to exacerbate O3‐negative effects on photosynthesis of trees when N increased from 0–30 kg N ha−1 year−1 to >60 kg N ha−1 year−1; however, this effect was significant only when realistic increases in O3 concentrations were considered. The results suggest potential error in the current estimates of the overall O3 impacts on plants due to no consideration of soil N availability, and encourage further studies on the interaction of O3 and N availability that will permit more robust analyses in the future. Elevated O3 will likely remain a persistent agricultural and ecological issue independently of N deposition. A free Plain Language Summary can be found within the Supporting Information of this article.

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Modeling of stomatal conductance to estimate stomatal ozone uptake by Fagus crenata , Quercus serrata , Quercus mongolica var. crispula and Betula platyphylla

Cited by 27 publications

References 44 publications

Growth overcompensation against O3 exposure in two Japanese oak species, Quercus mongolica var. crispula and Quercus serrata, grown under elevated CO2

Growth overcompensation against O3 exposure in two Japanese oak species, Quercus mongolica var. crispula and Quercus serrata, grown under elevated CO2

Photosynthesis and growth responses of Fraxinus mandshurica Rupr. seedlings to a gradient of simulated nitrogen deposition

Ozone will remain a threat for plants independently of nitrogen load

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