The impact of NOx and SO2 emissions from a magnesite processing industry on morphophysiological and anatomical features of plant bioindicators

Kateivas, Katielle Silva Brito; Cairo, Paulo Araquém Ramos; Neves, Pedro Henrique Santos; Ribeiro, Roger Sebastian Silva; Machado, Leohana Martins; Leitão, Carlos André Espolador

doi:10.1007/s11738-022-03411-9

Cited by 3 publications

(2 citation statements)

References 81 publications

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“…However, in the present study, except for the gradient changes of epidermis (epi-hypodermis) thickness under N application, we did not find significant effects of continuously increasing N concentration on leaf morphological (i.e., the leaf area, SLA and LMA of the three species) and anatomical traits (i.e., the PMT and SMT of B. platyphylla and F. mandshurica and mesophyll area of P. koraiensis ) of the three species ( Table 2 ; Table S1 ). In our results ( Table 2 ; Figure S2 ), with the decrease in R Dry/Wet , the continuous thickening of ADE in broadleaved species ( B. platyphylla and F. mandshurica ) may be a defense strategy for the leaves in response to the weak acidity of NH 4 Cl solution ( Kateivas et al., 2022 ). For coniferous species ( P. koraiensis ), the EHT increased at first and then decreased ( Table 2 ; Figure S2 ), suggesting that the needles may have the same defense strategy, but due to greater retention of wet deposition by needles, the EHT may be injured by higher doses of NH 4 Cl and then thinned.…”

Section: Discussionmentioning

confidence: 73%

Alternating processes of dry and wet nitrogen deposition have different effects on the function of canopy leaves: Implications for leaf photosynthesis

Zhou²,

Cheng³

et al. 2023

Front. Plant Sci.

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Canopy leaves are sinks of dry and wet nitrogen (N) deposition, most studies have not considered the response of canopy leaves to the alternating processes of dry and wet N deposition. We manipulated a close top chamber experiment to observe the effects of simulated N deposition with the same total deposition flux but different dry to wet ratios on leaf structure and physiology by spraying NH4Cl solution or supplying gaseous NH3 over the canopy of seedlings of three species (Betula platyphylla, Fraxinus mandshurica, Pinus koraiensis) placed in the chamber. After 32 days of N deposition and relative to the control, the leaf morphology and mesophyll tissue structure of the three species had no significant changes under all N deposition treatments. With the increase in the ratio of dry to wet N deposition, the N concentration, N metabolizing enzyme activity and soluble protein concentration in leaves of all three species increased continuously, but for the leaf light-saturated net photosynthesis rate, B. platyphylla showed a continuous increase, F. mandshurica showed a continuous decrease, and P. koraiensis showed no significant change. We found that F. mandshurica was the only species whose foliar chlorophyll and potassium concentration decreased with the increase in the ratio of dry to wet N deposition and its leaf light-saturated net photosynthesis rate was positively correlated with foliar chlorophyll and potassium concentration, respectively. Our results indicate that dry deposition is relatively more important on leaf physiological functions in alternating deposition. B. platyphylla and P. koraiensis may better acclimate to canopy NH3/NH4+ deposition than F. mandshurica. Most importantly, the results indicate that a single simulated dry and wet deposition would overestimate and underestimate the response of leaf function to atmospheric N deposition, respectively. Alternating processes of dry and wet deposition should be considered for more realistic assessments of the effects of atmospheric N deposition in forests.

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Section: Discussionmentioning

confidence: 73%

Alternating processes of dry and wet nitrogen deposition have different effects on the function of canopy leaves: Implications for leaf photosynthesis

Zhou²,

Cheng³

et al. 2023

Front. Plant Sci.

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“…Sulfur, comprising more than 30% of all minerals, is one of the essential elements in the geochemical cycle. During high-temperature pyrometallurgical operations, sulfur is oxidized to sulfur dioxide (SO 2 ) [1][2][3][4][5][6]. Statistically, the use of these minerals results in the emission of approximately 50 million tons of sulfur dioxide annually, the majority of which is used for the production of high-concentration sulfuric acid.…”

Section: Introductionmentioning

confidence: 99%

Research on the Selective Electrocatalytic Reduction of SO2 to Recover S0 by Pb Electrode

Wang

Long

et al. 2023

Metals

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Resource utilization of SO2 from flue gas is a key challenge for the green development of the smelting industry. Recovery of sulfur resources in the form of elemental sulfur (S0), which has a high market demand and is a current focus in the field of SO2 treatment, can reduce the solid waste from desulfurization. In this study, it was found that Pb as a cathode material had good catalytic activity for the electrochemical reduction of SO2 and good selectivity towards elemental sulfur. However, the cathode suffers from sulfur poisoning. The problem was resolved by introducing surfactant, specifically sodium dodecyl benzene sulfonate (SDBS), which significantly lowered the sulfur content ratio on the surface of the electrode from 31.82% to 2.17%. Through the optimization of electrocatalytic parameters, this method enables efficient conversion of SO2 to S0, achieving a selectivity of 83% at pH = 0.25 and E = −0.8 V (vs. SCE).

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VELVET: an enclosure vegetation system to measure BVOC emission fingerprints in temperate and tropical climates

Rocco,

Brugere,

Magand

et al. 2024

Front. Environ. Sci.

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The VELVET chamber, utilizing the vegetation enclosure technique, was used to measure biogenic volatile organic compound (BVOC) emissions from representative plant leaves in temperate and tropical climates. This study demonstrates the instrument’s capability, among the various measurements conducted in other studies using the vegetation enclosure technique, in qualifying and quantifying volatile organic compound (VOC) emissions from different tree species. The measurements were performed using Tenax tubes for sampling and GC/MS analysis. The use of PTR-ToF-MS for temperate species allows us to perform flux measurements in the chamber of Norway spruce (Picea abies), European beech (Fagus sylvatica), and common hazel tree (Corylus avellana) in the Puy de Dôme region (France). We found that all species are monoterpene emitters (on average 1.52 ± 0.29 ng m−2 s−1) and more particularly sesquiterpene emitters for C. avellana (7.49 ± 0.70 ng m−2 s−1). In the tropical region of Réunion Island (France), comprehensive measurements were conducted across three distinct vegetation types, on 10 of the most representative species, native and exotic to the island. The study revealed that emissions from these species were influenced by spatial variability, their environment, and the type of the forest (cloud forest, and high- and low-altitude forests). Notably, the research marked a groundbreaking achievement by capturing emissions from endemic species on the island for the first time. The collected data will be added to the biogenic emission inventory of the island, thereby enhancing model simulations by incorporating these new measurements.

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The impact of NOx and SO2 emissions from a magnesite processing industry on morphophysiological and anatomical features of plant bioindicators

Cited by 3 publications

References 81 publications

Alternating processes of dry and wet nitrogen deposition have different effects on the function of canopy leaves: Implications for leaf photosynthesis

Alternating processes of dry and wet nitrogen deposition have different effects on the function of canopy leaves: Implications for leaf photosynthesis

Research on the Selective Electrocatalytic Reduction of SO2 to Recover S0 by Pb Electrode

VELVET: an enclosure vegetation system to measure BVOC emission fingerprints in temperate and tropical climates

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