Elevated ozone affects C, N and P ecological stoichiometry and nutrient resorption of two poplar clones

Shang, Bo; Zhu, Feng; Пин, Ли; Calatayud, Vicent

doi:10.1016/j.envpol.2017.11.056

Cited by 55 publications

(47 citation statements)

References 72 publications

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“…Manuscript to be reviewed composition of plants (Calatayud et al, 2011;Shang et al, 2018). Booker et al (2005) found that the changes in N and lignin contents of soybean leaf litter increase significantly, while the soluble sugar content significantly decreased under elevated O3 concentration (74 ppb), in agreement with our results in this study.…”

Section: Effect Of Elevated O3 Concentration On Chemical Composition supporting

confidence: 90%

“…In our study, the increasing of N content in G. biloba leaves after high O3 exposure may be a helpful response to prevent the damage caused by O3 to some extent (Cao et al, 2016). High N concentration in leaves could make plants adapt to O3 stress through leaf turnover (Tjoelker and Luxmoore, 1991;Shang et al, 2018). In addition, the C/N ratio was an important indicator for the Plant secondary substances play a pivotal role in scavenging the high level of oxygen species caused by ozone at the end of O3 fumigation (He et al, 2009).…”

Section: Effect Of Elevated O3 Concentration On Chemical Composition mentioning

confidence: 66%

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Peer Review #1 of "Changes in nutrients and decay rate of Ginkgo biloba leaf litter exposed to elevated O3 concentration in urban area (v0.1)"

2018

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Ground-level ozone (O 3) pollution has been widely concerned in the world, particularly in the cities of Asia, including China. Elevated O 3 concentrations have potentially influenced growth and nutrient cycling of trees in urban forest. The decomposition characteristics of urban tree litters under O 3 exposure are still poorly known. Ginkgo biloba is commonly planted in the cities of northern China and is one of the main tree species in the urban forest of Shenyang, where concentrations of ground-level O 3 are very high in summer. Here, we hypothesized that O 3 exposure at high concentrations would alter the decomposition rate of urban tree litter. In open-top cambers (OTCs), 5-year-old G. biloba saplings were planted to investigate the impact of elevated O 3 concentration (120 ppb) on changes in nutrient contents and decomposition rate of leaf litters. The results showed that elevated O 3 concentration significantly increased K content (6.31 ± 0.29 vs 17.93 ± 0.40, P＜0.01) in leaves of G. biloba, significantly decreased the contents of total phenols (2.82 ± 0.93 vs 1.60 ± 0.44, P＜0.05) and soluble sugars (86.51 ± 19.57 vs 53.76 ± 2.40, P＜0.05), but did not significantly alter the contents of C, N, P, lignin and condensed tannins, compared with that in ambient air. Furthermore, percent mass remaining in litterbags after 150 days under ambient air and elevated O 3 concentration was 56.0% and 52.8%, respectively. No significant difference between treatments was observed in mass remaining at any sampling date during decomposition. The losses of the nutrients in leaf litters of G. biloba showed significant seasonal differences regardless of O 3 treatment. However, we found that elevated O 3 concentration slowed down the leaf litter decomposition only at the early decomposition stage, but slightly accelerated the litter decomposition at the late stage (after 120 days). This study provides our understanding of the ecological processes regulating biogeochemical cycles from deciduous tree species in high-O 3 urban area.

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Section: Effect Of Elevated O3 Concentration On Chemical Composition supporting

confidence: 90%

Section: Effect Of Elevated O3 Concentration On Chemical Composition mentioning

confidence: 66%

Peer Review #1 of "Changes in nutrients and decay rate of Ginkgo biloba leaf litter exposed to elevated O3 concentration in urban area (v0.1)"

2018

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“…The reduction in A 390 may relate to the smaller crown span and stem diameter that were caused by EOZ. Elevated O 3 can alter nutrient composition, affect allocation to different organs, and have impacts in ecological stoichiometry of trees (Li et al 2017a;Shang et al 2018Shang et al , 2019. However, in this study, the only significant effect of O 3 on leaf nutrients content was for Na content in ECM-treated plants grown in EOZ, which was approximately half of that in ECM-treated plants grown in Fig.…”

Section: Ocontrasting

confidence: 56%

Effects of soil nutrient availability and ozone on container-grown Japanese larch seedlings and role of soil microbes

et al. 2019

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other than ozone. Inoculation of roots with ectomycorrhizae had negligible influence on the effects of either soil nutrient availability or ozone. However, this lack of effect may be upon impeded formation of complete mycorrhizal root tips due to factors other than the manipulated variables. B and Na appeared to have an important role in stress responses, so further studies to examine their link with physiological mechanisms as a function of time. This study provides an important perspective for designing forestry practices to enhance seedling health.

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“…Ecological stoichiometry is an important tool for studying ecological processes and functions (Shang B et al ., 2018). Besides, it uses to explore the dynamic balance of various elements and their interactions (Moorthi S D et al ., 2016) and limitation of plant growth (Chen et al ., 2016).…”

Section: Introductionmentioning

confidence: 99%

Ecological stoichiometric characteristics of Carbon (C), Nitrogen (N) and Phosphorus (P) in leaf, root, stem, and soil in four wetland plants communities in Shengjin Lake, China

Dibar

Zhang

Yuan

et al. 2020

Preprint

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Ecological stoichiometric should be incorporated into management and nutrient impacted 32 ecosystems dynamic to understand the status of ecosystems and ecological interaction. The present study 33 focused on ecological stoichiometric characteristics of different macrophyte plants soil, leave, stem and root 34 after the removal of seine fishing since 2000 from Shengjin Lake. For C, N and P analysis from leaves, stems, 35 roots and soil to explore their stoichiometric ratio and deriving environmental forces here four dominant plant 36 communities (Zizania caduciflora, Vallisineria natans, Trapa quadrispinosa and Carex schmidtii) were 37 collected. C, N, P and C: N: P ratio in leafs, stems, roots and soil among the plant communities vary and the 38 studied plant communities had significant effect on the measured variables. There was high C: N in 39 C.schmidtii soil (7.08±1.504) but not vary significantly (P >0.05), and N: P ratio measured high in V. natans 40 (13.7±4.05) and C: P in T.quadrispinosa soil (81.14±43.88) and showed significant variation (P<0.05) 41 respectively. High leaf C: N and N: P ratio was measured in C. schmidtii and V. natans respectively. 42Nevertheless, high leaf C: P ratio was measured in Z.caduciflora. From the three studied organs leafs C: N, 43 N: P ratio showed high values compared to root and stems. The correlation analysis result showed that, at 0-44 10cm depth ranges SOC correlated negatively with stem total phosphorus (STP) ,and RTN (P<0.05) but 45 positively strongly with LTP and LTN (P<0.01) respectively. Soil total nitrogen at 0-10cm strongly positively 46 correlated with LTP (P<0.01) and positively with RN: P and LTC (P<0.05). Soil basic properties such as 47 SMC.BD and pH positively correlated with soil ecological stoichiometric characteristics. Redundancy 48 analysis (RDA) result showed pH and available phosphorus were the potential determinant of soil 49 stoichiometry. 50 51 52 53 54 55 56 57 58 Keyword: Wetland plants, Ecological stoichiometry, Shengjin Lake, Environmental variables. 59 60 61 62 63 64 3 65 66 Introduction 67 Ecological stoichiometry is an important tool for studying ecological processes and functions (Shang B et 68 al., 2018). Besides, it uses to explore the dynamic balance of various elements and their interactions (Moorthi 69 S D et al., 2016) and limitation of plant growth (Chen et al., 2016). Carbon (C), Nitrogen (N) and phosphorus 88 community type (Shang et al., 2013) can determine these nutrients and in turn it can be used for the 89 accumulation and allocation of plant biomass (Lie and Li, 2016). Because of human interference (Sardans 90 and Penuelas, 2014), climate change, hydrological fluctuation, aquatic and offshore environment wetlands 91 have been greatly affected. This is posing great impacts on vegetation and ecosystems (Qin et al.2014). C: N 92 and N: P ratio can be used as effective indicators for the health conditions and growth status of plants (Vrede 93 et al., 2004; Hessen et al., 2007) and understating the life strategies of plants (Wu ...

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Elevated ozone affects C, N and P ecological stoichiometry and nutrient resorption of two poplar clones

Cited by 55 publications

References 72 publications

Peer Review #1 of "Changes in nutrients and decay rate of Ginkgo biloba leaf litter exposed to elevated O3 concentration in urban area (v0.1)"

Peer Review #1 of "Changes in nutrients and decay rate of Ginkgo biloba leaf litter exposed to elevated O3 concentration in urban area (v0.1)"

Effects of soil nutrient availability and ozone on container-grown Japanese larch seedlings and role of soil microbes

Ecological stoichiometric characteristics of Carbon (C), Nitrogen (N) and Phosphorus (P) in leaf, root, stem, and soil in four wetland plants communities in Shengjin Lake, China

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