Globally, researchers and policymakers are calling for transformative climate adaptation (TCA) to fundamentally change the attributes of social, economic, and ecological systems to deal with climate risks. However, attempts to conceptualize, assess, and implement TCA are limited and often result in vague and diffuse meanings, hindering transformative action. This study synthesizes existing literature to introduce a framework consisting of six dimensions for evaluating transformative climate adaptation actions: (1) depth, (2) scope, (3) scale, (4) speed, (5) social vulnerability, and (6) ecological vulnerability. We applied this framework to 51 climate change adaptation cases in the Netherlands. Our results show that no single case scored high on all dimensions, suggesting there are trade-offs between the six dimensions. Most trade-offs exist between depth, speed, and scale; however, they sometimes extend to the interplay between social and ecological vulnerability. We identify multiple clusters of cases that display varying degrees and characteristics of transformative change. Our results strengthen the call for a multidimensional and continuous change perspective of TCA to address the gap between transformative theory and transformative actions. The framework proposed here could guide future empirical research on the drivers of TCA and help governance actors work towards building more socially and environmentally resilient futures.
{"title":"Between theory and action: Assessing the transformative character of climate change adaptation in 51 cases in the Netherlands","authors":"Dore Engbersen, Robbert Biesbroek, Catrien J.A.M. Termeer","doi":"10.1016/j.gloenvcha.2024.102948","DOIUrl":"10.1016/j.gloenvcha.2024.102948","url":null,"abstract":"<div><div>Globally, researchers and policymakers are calling for transformative climate adaptation (TCA) to fundamentally change the attributes of social, economic, and ecological systems to deal with climate risks. However, attempts to conceptualize, assess, and implement TCA are limited and often result in vague and diffuse meanings, hindering transformative action. This study synthesizes existing literature to introduce a framework consisting of six dimensions for evaluating transformative climate adaptation actions: (1) depth, (2) scope, (3) scale, (4) speed, (5) social vulnerability, and (6) ecological vulnerability. We applied this framework to 51 climate change adaptation cases in the Netherlands. Our results show that no single case scored high on all dimensions, suggesting there are trade-offs between the six dimensions. Most trade-offs exist between depth, speed, and scale; however, they sometimes extend to the interplay between social and ecological vulnerability. We identify multiple clusters of cases that display varying degrees and characteristics of transformative change. Our results strengthen the call for a multidimensional and continuous change perspective of TCA to address the gap between transformative theory and transformative actions. The framework proposed here could guide future empirical research on the drivers of TCA and help governance actors work towards building more socially and environmentally resilient futures.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"89 ","pages":"Article 102948"},"PeriodicalIF":8.6,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In recent years, due to the rapid development of industrialisation, plasticisers can be commonly detected in the aqueous environment, and diethyl phthalate (DEP), as an o-phenyl plasticiser, is an emerging pollutant in the aqueous environment, which endangers human health and damages the environment. In this study, a double grounded dielectric barrier discharge (DBD) plasma was utilised for the degradation of DEP wastewater, and a packed-bed reactor was designed so that the degradation rate of DEP was enhanced by the enhanced discharge effect. This paper compares the investigation of the packing performance of different packing materials in the DBD plasma discharge space, optimising a conventional DBD plasma, and testing the filling of different filling materials (glass spheres and glass tubes) in a DBD reactor. Response surface method was used to determine the effect of different materials between size, packing volume and through air flow rate and optimisation experiments were carried out. When glass spheres are used as filler material, the removal rate of the response output optimum can reach 96.62%; When the glass tube is used as filler material, the response output optimum value of 89.78% removal can be achieved. The degradation of DEP by various active particles within the filled-bed DBD discharge system was investigated by free radical inhibition experiments. The removal rates were 17.81%, 48.30% and 17.81% after 40 min of discharge treatment with 5 mmoL/L IPA, BQ and PS, respectively.
近年来，由于工业化的快速发展，水环境中普遍可以检测到增塑剂，而邻苯二甲酸二乙酯（DEP）作为一种邻苯增塑剂，是水环境中新出现的污染物，危害人类健康，破坏环境。本研究利用双接地介质阻挡放电（DBD）等离子体降解 DEP 废水，并设计了填料床反应器，通过增强放电效应提高 DEP 的降解率。本文比较研究了不同填料在 DBD 等离子体放电空间中的填料性能，优化了传统的 DBD 等离子体，并测试了不同填料（玻璃球和玻璃管）在 DBD 反应器中的填装情况。采用响应面法确定了不同材料在尺寸、填料体积和通气流速之间的影响，并进行了优化实验。当使用玻璃球作为填充材料时，响应输出最优值的去除率可达 96.62%；当使用玻璃管作为填充材料时，响应输出最优值的去除率可达 89.78%。通过自由基抑制实验研究了填充床 DBD 放电系统中各种活性颗粒对 DEP 的降解情况。使用 5 mmoL/L IPA、BQ 和 PS 进行放电处理 40 分钟后，去除率分别为 17.81%、48.30% 和 17.81%。
{"title":"Experimental Study on DEP Degradation in Water by Double Grounded Electrode DBD Reactor","authors":"Shiyue Liu, Xuhong Jin, Siyu Zhang, Cong Wang, Xinjun Shen","doi":"10.1007/s11270-024-07600-9","DOIUrl":"10.1007/s11270-024-07600-9","url":null,"abstract":"<div><p>In recent years, due to the rapid development of industrialisation, plasticisers can be commonly detected in the aqueous environment, and diethyl phthalate (DEP), as an o-phenyl plasticiser, is an emerging pollutant in the aqueous environment, which endangers human health and damages the environment. In this study, a double grounded dielectric barrier discharge (DBD) plasma was utilised for the degradation of DEP wastewater, and a packed-bed reactor was designed so that the degradation rate of DEP was enhanced by the enhanced discharge effect. This paper compares the investigation of the packing performance of different packing materials in the DBD plasma discharge space, optimising a conventional DBD plasma, and testing the filling of different filling materials (glass spheres and glass tubes) in a DBD reactor. Response surface method was used to determine the effect of different materials between size, packing volume and through air flow rate and optimisation experiments were carried out. When glass spheres are used as filler material, the removal rate of the response output optimum can reach 96.62%; When the glass tube is used as filler material, the response output optimum value of 89.78% removal can be achieved. The degradation of DEP by various active particles within the filled-bed DBD discharge system was investigated by free radical inhibition experiments. The removal rates were 17.81%, 48.30% and 17.81% after 40 min of discharge treatment with 5 mmoL/L IPA, BQ and PS, respectively.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"235 12","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vanessa Takeshita, Felipe F. Oliveira, Alvaro Garcia, Nubia Zuverza-Mena, Carlos Tamez, Brian Cintra Cardoso, Camila Werk de Pinácio, Blaire Steven, Jacquelyn LaReau, Carlos E. Astete, Christina M Sabliov, Leonardo Fernandes Fraceto, Valdemar Luiz Tornisielo, Christian Dimkpa, Jason C. White
Several studies have reported improved weed control and targeted delivery of herbicides by nanocarriers. However, the effects on crops and non-target organisms need to be considered. Here, we investigate the crop and soil health treated with metribuzin in conventional and biodegradable nanoformulations (poly-ε-caprolactone - PCL and lignin-PCL) (both at 480 g a.i. ha-1). Weed control of Amaranthus retroflexus by the nanoformulations was also evaluated as a measurement of target delivery. Soybean plants did not show any differences in photosynthetic parameters and a slight oxidative stress with nanoherbicide treatment, with biomass reduction occurred at 60 days after application. The root accumulated metribuzin formulations and translocated to the aerial part for both plant species. The polymeric nanomaterials in the soil mitigated alterations in the bacterial community. Metribuzin formulations, mainly nanoformulations even at low dose (48 g a.i. ha-1) caused severe photosynthetic damage in the weed species, with reduction of chlorophyll content (up to 2.35 time) and electron flow (up to 9.22 times), leading to eventual mortality. MTZ nanoformulations presented a greater efficacy (even in 10-fold less dose) for weed control compared to conventional formulation. These findings suggest that MTZ nanoformulations improve weed control and attenuate the negative effects on crop and soil health, offering an important nano-enabled strategy for sustainable weed management.
{"title":"Delivering metribuzin from biodegradable nanocarriers: Assessing herbicidal effects for soybean plant protection and weed control","authors":"Vanessa Takeshita, Felipe F. Oliveira, Alvaro Garcia, Nubia Zuverza-Mena, Carlos Tamez, Brian Cintra Cardoso, Camila Werk de Pinácio, Blaire Steven, Jacquelyn LaReau, Carlos E. Astete, Christina M Sabliov, Leonardo Fernandes Fraceto, Valdemar Luiz Tornisielo, Christian Dimkpa, Jason C. White","doi":"10.1039/d4en00784k","DOIUrl":"https://doi.org/10.1039/d4en00784k","url":null,"abstract":"Several studies have reported improved weed control and targeted delivery of herbicides by nanocarriers. However, the effects on crops and non-target organisms need to be considered. Here, we investigate the crop and soil health treated with metribuzin in conventional and biodegradable nanoformulations (poly-ε-caprolactone - PCL and lignin-PCL) (both at 480 g a.i. ha-1<small><sup></sup></small>). Weed control of Amaranthus retroflexus by the nanoformulations was also evaluated as a measurement of target delivery. Soybean plants did not show any differences in photosynthetic parameters and a slight oxidative stress with nanoherbicide treatment, with biomass reduction occurred at 60 days after application. The root accumulated metribuzin formulations and translocated to the aerial part for both plant species. The polymeric nanomaterials in the soil mitigated alterations in the bacterial community. Metribuzin formulations, mainly nanoformulations even at low dose (48 g a.i. ha-1<small><sup></sup></small>) caused severe photosynthetic damage in the weed species, with reduction of chlorophyll content (up to 2.35 time) and electron flow (up to 9.22 times), leading to eventual mortality. MTZ nanoformulations presented a greater efficacy (even in 10-fold less dose) for weed control compared to conventional formulation. These findings suggest that MTZ nanoformulations improve weed control and attenuate the negative effects on crop and soil health, offering an important nano-enabled strategy for sustainable weed management.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"97 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142594380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-05DOI: 10.1007/s11270-024-07612-5
Karine Fonseca Soares de Oliveira, Joemil Oliveira de Deus Junior, Talita Lorena dado SilvaNascimento, Raoni Batista dos Anjos, Dulce Maria de Araújo Melo, Renata Martins Braga, Marcus Antonio de Freitas Melo
One of the produced water treatment methods is adsorption, however, the use of commercial activated carbon as an adsorbent, in industrial scale, makes the process expensive. An alternative for replacing commercial activated carbon is the use of bioadsorbents, which have been gaining emphasis in recent decades, high performance, and low production costs. The objective of this work is to develop an efficient and low cost bioadsorbent by reusing the charcoal from the cashew nutshell (Anarcadium accidentale L.) for the removal of metal ions (Cu2+, Pb2+ and Cr3+), oil and grease content (OGC). The bioadsorbent was pretreated with NaOH and characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), point of zero charge (pHpzc) and Boehm titration. The adsorption tests involved adsorption kinetics and equilibrium experiments in a batch system using metallic solution and in a fixed bed column using multi-element metallic and semi-synthetic OGC solution. The characterization results revealed the presence of hydroxyl, carboxyl and carbonyl groups, as well as an irregular and heterogeneous structure, which are favorable characteristics for the adsorption process. The bioadsorbent was able to remove 98.9; 90.9, 77.1 and 100% for Cu2+, Pb2+, Cr3+ and OGC, respectively, in a fixed bed adsorption column. It is concluded that bioadsorbent developed has high potential for removing metals and OGC, in addition to being an abundant product in nature, renewable, biodegradable and its reuse contributes to reduce environmental pollution, waste production and improves the local circular economy through the recovery of the by-product.
{"title":"Charcoal Residue from Cashew Nutshells as a Bioadsorbent in Fixed Bed Column for Produced Water","authors":"Karine Fonseca Soares de Oliveira, Joemil Oliveira de Deus Junior, Talita Lorena dado SilvaNascimento, Raoni Batista dos Anjos, Dulce Maria de Araújo Melo, Renata Martins Braga, Marcus Antonio de Freitas Melo","doi":"10.1007/s11270-024-07612-5","DOIUrl":"10.1007/s11270-024-07612-5","url":null,"abstract":"<div><p>One of the produced water treatment methods is adsorption, however, the use of commercial activated carbon as an adsorbent, in industrial scale, makes the process expensive. An alternative for replacing commercial activated carbon is the use of bioadsorbents, which have been gaining emphasis in recent decades, high performance, and low production costs. The objective of this work is to develop an efficient and low cost bioadsorbent by reusing the charcoal from the cashew nutshell (<i>Anarcadium accidentale</i> L.) for the removal of metal ions (Cu<sup>2+</sup>, Pb<sup>2+</sup> and Cr<sup>3+</sup>), oil and grease content (OGC). The bioadsorbent was pretreated with NaOH and characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), point of zero charge (pHpzc) and Boehm titration. The adsorption tests involved adsorption kinetics and equilibrium experiments in a batch system using metallic solution and in a fixed bed column using multi-element metallic and semi-synthetic OGC solution. The characterization results revealed the presence of hydroxyl, carboxyl and carbonyl groups, as well as an irregular and heterogeneous structure, which are favorable characteristics for the adsorption process. The bioadsorbent was able to remove 98.9; 90.9, 77.1 and 100% for Cu<sup>2+</sup>, Pb<sup>2+</sup>, Cr<sup>3+</sup> and OGC, respectively, in a fixed bed adsorption column. It is concluded that bioadsorbent developed has high potential for removing metals and OGC, in addition to being an abundant product in nature, renewable, biodegradable and its reuse contributes to reduce environmental pollution, waste production and improves the local circular economy through the recovery of the by-product.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"235 12","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vincent Noël, Naresh Kumar, Kristin Boye, Lilia Barragan, Juan S. Lezama-Pacheco, Rosalie Chu, Nikola Tolic, Gordon E. Brown, John R. Bargar
Correction for ‘FeS colloids – formation and mobilization pathways in natural waters’ by Vincent Noël et al., Environ. Sci.: Nano, 2020, 7, 2102–2116, https://doi.org/10.1039/C9EN01427F.
{"title":"Correction: FeS colloids – formation and mobilization pathways in natural waters","authors":"Vincent Noël, Naresh Kumar, Kristin Boye, Lilia Barragan, Juan S. Lezama-Pacheco, Rosalie Chu, Nikola Tolic, Gordon E. Brown, John R. Bargar","doi":"10.1039/d4en90048k","DOIUrl":"https://doi.org/10.1039/d4en90048k","url":null,"abstract":"Correction for ‘FeS colloids – formation and mobilization pathways in natural waters’ by Vincent Noël <em>et al.</em>, <em>Environ. Sci.: Nano</em>, 2020, <strong>7</strong>, 2102–2116, https://doi.org/10.1039/C9EN01427F.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"87 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142580409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, microplastics (MPs) contaminations in Kodek Bay, North Lombok, West Nusa Tenggara, Indonesia, were investigated from water, sediment, and marine animal samples to evaluate the impact of waste discharges from anthropogenic activities and river run-off around the bay. The samples were collected from three site categories: port, residential area, and aquaculture floating net cages. Water quality in each site was also observed. Three marine animals with different feeding regimes were selected to assess MPs contamination, including pompano (Trachinotus blochii), crab (Ocypode kuhlii), and oyster (Crassostrea sp.). A series of extraction protocols followed by stereomicroscope observation were conducted to identify the MPs' abundance, form type, and color. Next, the MPs polymer type was characterized using Fourier Transform Infra Red (FT-IR) at a frequency range 4000–400 cm-1 resolution 4.0 with Bruker Alpha II spectrometer. The results showed no significant difference (P < 0.5) in MPs abundance in water (15.75–20 part.L−1) and sediment (10.25–12.3 part.kgDW−1) samples between the sites as well as between marine animals (23.20–27.03 part.ind−1). Various MPs types and color proportions were observed from water and sediment from different sampling locations and marine animal body parts. The MPs form types found include fragment (6–58%), film (7–49%), fiber (2–25%), and pellet (20–78%), while based on the MPs particle colors, the proportion were black (14–78%), yellow (7–33%), blue (2–25%), red (8–30%) and green (2–30%). Analysis of functional groups and polymers from water, sediments, and marine animal samples indicated the presence of PS (Polystyrene) and PE (Polyethylene). The study results indicated widespread MP contamination in the Kodek Bay area. The results serve as a scientific-based recommendation for policymaking to further prevent MPs contamination in the area.
{"title":"Microplastics Contamination in Environment and Marine Animals at Kodek Bay, Lombok, Indonesia","authors":"Moh. Awaludin Adam, Husna Shofi Talbia, Dwi Ariyanti, Sonny Kristianto, Nadda Khalila Chairunnisa, Maya Aprilia, Muhammad Firdaus, Ramli Marzuki, Aditya Prana Iswara, Wisnu Prayogo, Tuti Mutia, Heni Masruroh","doi":"10.1007/s11270-024-07607-2","DOIUrl":"10.1007/s11270-024-07607-2","url":null,"abstract":"<div><p>In this study, microplastics (MPs) contaminations in Kodek Bay, North Lombok, West Nusa Tenggara, Indonesia, were investigated from water, sediment, and marine animal samples to evaluate the impact of waste discharges from anthropogenic activities and river run-off around the bay. The samples were collected from three site categories: port, residential area, and aquaculture floating net cages. Water quality in each site was also observed. Three marine animals with different feeding regimes were selected to assess MPs contamination, including pompano (<i>Trachinotus blochii</i>), crab (<i>Ocypode kuhlii</i>), and oyster (<i>Crassostrea</i> sp.). A series of extraction protocols followed by stereomicroscope observation were conducted to identify the MPs' abundance, form type, and color. Next, the MPs polymer type was characterized using Fourier Transform Infra Red (FT-IR) at a frequency range 4000–400 cm-1 resolution 4.0 with Bruker Alpha II spectrometer. The results showed no significant difference (P < 0.5) in MPs abundance in water (15.75–20 part.L<sup>−1</sup>) and sediment (10.25–12.3 part.kgDW<sup>−1</sup>) samples between the sites as well as between marine animals (23.20–27.03 part.ind<sup>−1</sup>). Various MPs types and color proportions were observed from water and sediment from different sampling locations and marine animal body parts. The MPs form types found include fragment (6–58%), film (7–49%), fiber (2–25%), and pellet (20–78%), while based on the MPs particle colors, the proportion were black (14–78%), yellow (7–33%), blue (2–25%), red (8–30%) and green (2–30%). Analysis of functional groups and polymers from water, sediments, and marine animal samples indicated the presence of PS (Polystyrene) and PE (Polyethylene). The study results indicated widespread MP contamination in the Kodek Bay area. The results serve as a scientific-based recommendation for policymaking to further prevent MPs contamination in the area.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"235 12","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-05DOI: 10.1007/s00114-024-01946-0
Božena Šerá, Pratik Doshi, Lubomír Věchet
Knotweed (Reynoutria sp.) plants are known in the world mainly as invasive plants. However, it is known that their rhizomes or leaves contain secondary metabolites with biological activity. Our goal was to determine which of the three knotweed plants (Reynoutria japonica, Reynoutria × bohemica, and Reynoutria sachalinensis) is most suitable for seed growth stimulation. We tested alcoholic extracts of all three knotweed species by seed priming method on wheat germination and seedling characteristics, when 12 measured characteristics were monitored. Extracts from all three species of Reynoutria sp. generally showed an improvement in wheat germination and growth compared to the control. R. × bohemica appears to be the best source for stimulating wheat growth, as seedling vigor indexes I and II, R/S dry weight, shoot and seedling lengths, root, shoot, and seedling dry weights were significantly different (ANOVA, Duncan’s test, α < 0.05). The plants Reynoutria spp. seem to be possible sources for the protection and stimulation of agriculture crops.
{"title":"Extracts from the leaves of knotweeds (Reynoutria spp.) have a stimulating effect on the germination and initial growth of wheat grains","authors":"Božena Šerá, Pratik Doshi, Lubomír Věchet","doi":"10.1007/s00114-024-01946-0","DOIUrl":"10.1007/s00114-024-01946-0","url":null,"abstract":"<div><p> Knotweed (<i>Reynoutria</i> sp.) plants are known in the world mainly as invasive plants. However, it is known that their rhizomes or leaves contain secondary metabolites with biological activity. Our goal was to determine which of the three knotweed plants (<i>Reynoutria japonica</i>, <i>Reynoutria × bohemica</i>, and <i>Reynoutria sachalinensis</i>) is most suitable for seed growth stimulation. We tested alcoholic extracts of all three knotweed species by seed priming method on wheat germination and seedling characteristics, when 12 measured characteristics were monitored. Extracts from all three species of <i>Reynoutria</i> sp. generally showed an improvement in wheat germination and growth compared to the control. <i>R.</i> × <i>bohemica</i> appears to be the best source for stimulating wheat growth, as seedling vigor indexes I and II, R/S dry weight, shoot and seedling lengths, root, shoot, and seedling dry weights were significantly different (ANOVA, Duncan’s test, <i>α</i> < 0.05). The plants <i>Reynoutria</i> spp. seem to be possible sources for the protection and stimulation of agriculture crops.</p></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"111 6","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00114-024-01946-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haotian Wu, Runduo Zhang, Bin Kang, Xiaonan Guo, Zhaoying Di, Kun Wang, Jingbo Jia, Ying Wei, Zhou-Jun Wang
Ozone is a pollutant that has received widespread attention in recent years, and manganese dioxide (MnO2) has been widely used for ozone catalytic decomposition. However, few studies have described the structural-activity correlation of different types morphological of MnO2. In this study, series of MnO2 crystals (α-, β-, γ-, δ-, ε-and λ-MnO2) were synthesized, and their catalytic activities on ozone decomposition (25 oC, dry air) were comparatively studied, which exhibited an order of ε-MnO2 > α-MnO2 > γ-MnO2 > β-MnO2 ≈ δ-MnO2 > λ-MnO2. XRD and HRTEM confirmed their diversities on the exposed crystal planes. It was confirmed that ε-MnO2 with (1 0 2) plane has the largest number of oxygen vacancies and the best oxygen mobility. These findings elucidate the favorable performance of ε-MnO2 in the aforementioned tests. DFT calculations reveal the reaction mechanism, showed that ε-MnO2 has the lowest energy barrier for the decisive speed step O22- desorption (2.04 eV). This work illustrated the crucial role of the oxygen vacancies and the mobility of lattice oxygen, which sheds light on the strategies of rational design and control synthesis of effective catalysts for ozone elimination.
{"title":"Morphological impact of 1-dimensional → 3-dimensional manganese dioxides on ozone catalytic decomposition correlated with crystal facet and lattice oxygen mobility","authors":"Haotian Wu, Runduo Zhang, Bin Kang, Xiaonan Guo, Zhaoying Di, Kun Wang, Jingbo Jia, Ying Wei, Zhou-Jun Wang","doi":"10.1039/d4en00857j","DOIUrl":"https://doi.org/10.1039/d4en00857j","url":null,"abstract":"Ozone is a pollutant that has received widespread attention in recent years, and manganese dioxide (MnO<small><sub>2</sub></small>) has been widely used for ozone catalytic decomposition. However, few studies have described the structural-activity correlation of different types morphological of MnO<small><sub>2</sub></small>. In this study, series of MnO<small><sub>2</sub></small> crystals (α-, β-, γ-, δ-, ε-and λ-MnO<small><sub>2</sub></small>) were synthesized, and their catalytic activities on ozone decomposition (25 <small><sup>o</sup></small>C, dry air) were comparatively studied, which exhibited an order of ε-MnO<small><sub>2</sub></small> > α-MnO<small><sub>2</sub></small> > γ-MnO<small><sub>2</sub></small> > β-MnO<small><sub>2</sub></small> ≈ δ-MnO<small><sub>2</sub></small> > λ-MnO<small><sub>2</sub></small>. XRD and HRTEM confirmed their diversities on the exposed crystal planes. It was confirmed that ε-MnO<small><sub>2</sub></small> with (1 0 2) plane has the largest number of oxygen vacancies and the best oxygen mobility. These findings elucidate the favorable performance of ε-MnO<small><sub>2</sub></small> in the aforementioned tests. DFT calculations reveal the reaction mechanism, showed that ε-MnO<small><sub>2</sub></small> has the lowest energy barrier for the decisive speed step O<small><sub>2</sub></small><small><sup>2-</sup></small> desorption (2.04 eV). This work illustrated the crucial role of the oxygen vacancies and the mobility of lattice oxygen, which sheds light on the strategies of rational design and control synthesis of effective catalysts for ozone elimination.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"138 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142580410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-04DOI: 10.1007/s11270-024-07597-1
Sin Ying Tan, Sumathi Sethupathi, Kah Hon Leong
Aquaculture wastewater (AW) is contaminated with nitrate (NO3−) and nitrite (NO2−), which can cause eutrophication if discharged without treatment. This study explores using coffee grounds biosorbent (CGB) to recover NO3− and NO2− ions from AW and reutilize the spent sorbent as a soil conditioner. The process study, adsorption isotherms and kinetics of the adsorption of NO3− and NO2− were deduced using several parameters and models. Spent sorbents were also compared with the commercial potting soil based on Okra plant growth metrics. The highest recovery efficiency for NO3− and NO2− was 98.6% and 95.0%, respectively, using 5 g/L of CGB with a 2-h contact time at pH 11. Adsorption followed the Freundlich isotherm and pseudo-first-order model, indicating multilayer adsorption on a heterogeneous surface. Optimal Okra growth was observed with 10% spent CGB (SCGB). This study highlights the potential of waste biosorbents for nutrient recovery and subsequent use as soil conditioners.
{"title":"Optimizing Nitrate and Nitrite Recovery from Aquaculture Wastewater Using Coffee Ground Biosorbent: Adsorption Mechanisms and Its Potential as Soil Conditioner","authors":"Sin Ying Tan, Sumathi Sethupathi, Kah Hon Leong","doi":"10.1007/s11270-024-07597-1","DOIUrl":"10.1007/s11270-024-07597-1","url":null,"abstract":"<div><p>Aquaculture wastewater (AW) is contaminated with nitrate (NO<sub>3</sub><sup>−</sup>) and nitrite (NO<sub>2</sub><sup>−</sup>), which can cause eutrophication if discharged without treatment. This study explores using coffee grounds biosorbent (CGB) to recover NO<sub>3</sub><sup>−</sup> and NO<sub>2</sub><sup>−</sup> ions from AW and reutilize the spent sorbent as a soil conditioner. The process study, adsorption isotherms and kinetics of the adsorption of NO<sub>3</sub><sup>−</sup> and NO<sub>2</sub><sup>−</sup> were deduced using several parameters and models. Spent sorbents were also compared with the commercial potting soil based on Okra plant growth metrics. The highest recovery efficiency for NO<sub>3</sub><sup>−</sup> and NO<sub>2</sub><sup>−</sup> was 98.6% and 95.0%, respectively, using 5 g/L of CGB with a 2-h contact time at pH 11. Adsorption followed the Freundlich isotherm and pseudo-first-order model, indicating multilayer adsorption on a heterogeneous surface. Optimal Okra growth was observed with 10% spent CGB (SCGB). This study highlights the potential of waste biosorbents for nutrient recovery and subsequent use as soil conditioners.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"235 12","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-04DOI: 10.1016/j.gloenvcha.2024.102950
Xiaojuan Hou , Ruojun Xiang , Ming Jin
Formal trust is an important formal institution that may significantly impact the environment. This study uses regional distrust environment as a reverse proxy variable for formal trust and studies the impact of formal trust on corporate sulfur dioxide emissions. This study finds that the environment of distrust significantly increases the sulfur dioxide emission levels of enterprises, which means that formal trust affects the environmental management strategies of enterprises. This study also finds that some other formal institutional factors, which include marketization, the development of intermediate organizations, the legal system environment, and GDP levels, have moderating effects on the impact of distrust environment on corporate sulfur dioxide emissions. In addition, climatic conditions including temperature, humidity, and precedence, as well as the location of the enterprise, have certain moderation effects. Mechanism analysis indicates that distrust environment affects corporate sulfur dioxide emissions through the increase in coal sulfur content in enterprise production, the decrease in exhaust gas processing capacity, the reduction in financing capacity, and the decline in social and environmental responsibilities. Finally, this study finds through further analysis that the local government appears to have noticed this negative impact, and the regions with a distrust environment tend to increase their environmental regulation intensity.
正式信任是一种重要的正式制度，可能对环境产生重大影响。本研究以地区不信任环境作为正式信任的反向替代变量，研究正式信任对企业二氧化硫排放的影响。本研究发现，不信任环境会显著增加企业的二氧化硫排放水平，这说明正式信任会影响企业的环境管理策略。本研究还发现，其他一些正式制度因素，包括市场化、中间组织发展、法律制度环境和 GDP 水平，对不信任环境对企业二氧化硫排放的影响具有调节作用。此外，气候条件包括温度、湿度、先期以及企业所在地也有一定的调节作用。机理分析表明，不信任环境通过企业生产中煤炭含硫量的增加、废气处理能力的下降、融资能力的降低、社会和环境责任的下降等途径影响企业二氧化硫排放。最后，本研究通过进一步分析发现，地方政府似乎已经注意到了这种负面影响，不信任环境地区往往会加大环境监管力度。
{"title":"Air pollution under formal institutions: The role of distrust environment","authors":"Xiaojuan Hou , Ruojun Xiang , Ming Jin","doi":"10.1016/j.gloenvcha.2024.102950","DOIUrl":"10.1016/j.gloenvcha.2024.102950","url":null,"abstract":"<div><div>Formal trust is an important formal institution that may significantly impact the environment. This study uses regional distrust environment as a reverse proxy variable for formal trust and studies the impact of formal trust on corporate sulfur dioxide emissions. This study finds that the environment of distrust significantly increases the sulfur dioxide emission levels of enterprises, which means that formal trust affects the environmental management strategies of enterprises. This study also finds that some other formal institutional factors, which include marketization, the development of intermediate organizations, the legal system environment, and GDP levels, have moderating effects on the impact of distrust environment on corporate sulfur dioxide emissions. In addition, climatic conditions including temperature, humidity, and precedence, as well as the location of the enterprise, have certain moderation effects. Mechanism analysis indicates that distrust environment affects corporate sulfur dioxide emissions through the increase in coal sulfur content in enterprise production, the decrease in exhaust gas processing capacity, the reduction in financing capacity, and the decline in social and environmental responsibilities. Finally, this study finds through further analysis that the local government appears to have noticed this negative impact, and the regions with a distrust environment tend to increase their environmental regulation intensity.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"89 ","pages":"Article 102950"},"PeriodicalIF":8.6,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142577920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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