首页 > 最新文献

AIMS Environmental Science最新文献

英文 中文
Effectiveness of the genus Riccia (Marchantiophyta: Ricciaceae) as a biofilter for particulate matter adsorption from air pollution 蓖麻属(Marchantiophyta: Ricciaceae)作为生物过滤器对空气污染中颗粒物的吸附效果
IF 1.4 Q3 Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023009
W. Meesang, Erawan Baothong, Aphichat Srichat, S. Mattapha, W. Kaensa, Pathomsorn Juthakanok, Wipaporn Kitisriworaphan, Kanda Saosoong
The study of plants as a biofilter is highly relevant in the field of air pollution science to ecological restoration in urban, which is connected to the ecosystem and human health. The aim of this present study was designed to evaluate the use of Riccia as a biofilter for particulate matter. The treatment box was designed using the Computational Fluid Dynamic (CFD) model. The alignment of the biofilter plant was designed and performed in three different arrangements blocking, zigzag, and parallel panels. The particulate matter was generated by simulated B7 diesel fuel combustion smoke using a smoke generator and loaded into the chamber with air velocities of 0.5, 1.0, 1.5, and 2.0 m/s via a Laser dust sensor for both inlet and outlet air. The adsorption efficiency of the PM adsorbed on the biofilter plant was calculated. The physical properties, physiological, and biochemical parameters of the study plant such as Air pollution tolerance index (APTI), Dust capturing potential were investigated. Moreover, the micromorphological details of the plant, the volatile organic compounds (VOCs), polyaromatic hydrocarbons (PAHs), and adsorbed metal were analyzed. The study revealed adsorption efficiency was in the range of 2.3%–49.6 %. The highest efficiency values for PM1, PM2.5, and PM10 were 31.4, 40.1, and 49.6, respectively, which belonged to the horizontal panel with a velocity of 2.0 m/s. The alignment of the panel and air velocities affects the efficiency. HS-GC-MS revealed that Riccia can be adsorbed the particulate matter and the quantity of Cd, Pb, and Na were 0.0044 ± 0.0069 mg/gDW, 0.0208 ± 0.0278 mg/gDW, and 0.9395 ± 0.1009 mg/gDW, respectively. The morphological study exhibited a rough surface to enhance the efficiency of the trapped particle matter. The results showed that Riccia was suitable for adsorbing the particulate matter with a diameter of 1–4 μm.
在大气污染科学领域,植物作为生物过滤器的研究与城市生态修复密切相关,关系到生态系统和人类健康。本研究的目的是评价蓖麻作为生物过滤器对颗粒物的作用。采用计算流体力学(CFD)模型设计处理箱。生物过滤装置的排列被设计成三种不同的排列方式,分别是阻挡板、之字形板和平行板。采用烟雾发生器模拟B7柴油燃烧烟气产生颗粒物,并通过激光粉尘传感器分别以0.5、1.0、1.5和2.0 m/s的风速将颗粒物加载到进风口和出风口。计算了生物滤池对PM的吸附效率。对研究植物的物理特性、耐空气污染指数(APTI)、捕尘潜力等生理生化指标进行了研究。此外,还分析了植物的微观形态细节、挥发性有机化合物(VOCs)、多芳烃(PAHs)和吸附金属。研究表明,吸附效率在2.3% ~ 49.6%之间。PM1、PM2.5和PM10的最高效率值分别为31.4、40.1和49.6,属于速度为2.0 m/s的水平面板。面板和空气速度的对齐影响效率。HS-GC-MS分析表明,枸杞对颗粒物有吸附作用,Cd、Pb和Na的吸附量分别为0.0044±0.0069 mg/gDW、0.0208±0.0278 mg/gDW和0.9395±0.1009 mg/gDW。形态学研究表明,粗糙的表面可以提高捕获粒子物质的效率。结果表明:蓖麻对粒径为1 ~ 4 μm的颗粒具有较好的吸附效果;
{"title":"Effectiveness of the genus Riccia (Marchantiophyta: Ricciaceae) as a biofilter for particulate matter adsorption from air pollution","authors":"W. Meesang, Erawan Baothong, Aphichat Srichat, S. Mattapha, W. Kaensa, Pathomsorn Juthakanok, Wipaporn Kitisriworaphan, Kanda Saosoong","doi":"10.3934/environsci.2023009","DOIUrl":"https://doi.org/10.3934/environsci.2023009","url":null,"abstract":"The study of plants as a biofilter is highly relevant in the field of air pollution science to ecological restoration in urban, which is connected to the ecosystem and human health. The aim of this present study was designed to evaluate the use of Riccia as a biofilter for particulate matter. The treatment box was designed using the Computational Fluid Dynamic (CFD) model. The alignment of the biofilter plant was designed and performed in three different arrangements blocking, zigzag, and parallel panels. The particulate matter was generated by simulated B7 diesel fuel combustion smoke using a smoke generator and loaded into the chamber with air velocities of 0.5, 1.0, 1.5, and 2.0 m/s via a Laser dust sensor for both inlet and outlet air. The adsorption efficiency of the PM adsorbed on the biofilter plant was calculated. The physical properties, physiological, and biochemical parameters of the study plant such as Air pollution tolerance index (APTI), Dust capturing potential were investigated. Moreover, the micromorphological details of the plant, the volatile organic compounds (VOCs), polyaromatic hydrocarbons (PAHs), and adsorbed metal were analyzed. The study revealed adsorption efficiency was in the range of 2.3%–49.6 %. The highest efficiency values for PM1, PM2.5, and PM10 were 31.4, 40.1, and 49.6, respectively, which belonged to the horizontal panel with a velocity of 2.0 m/s. The alignment of the panel and air velocities affects the efficiency. HS-GC-MS revealed that Riccia can be adsorbed the particulate matter and the quantity of Cd, Pb, and Na were 0.0044 ± 0.0069 mg/gDW, 0.0208 ± 0.0278 mg/gDW, and 0.9395 ± 0.1009 mg/gDW, respectively. The morphological study exhibited a rough surface to enhance the efficiency of the trapped particle matter. The results showed that Riccia was suitable for adsorbing the particulate matter with a diameter of 1–4 μm.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70231843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Advancing towards a sustainable energy model. Uncovering the untapped potential of rural areas 推进可持续能源模式。发掘农村地区未开发的潜力
IF 1.4 Q3 Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023017
Vanessa Miramontes-Viña, N. Romero-Castro, M. Ángeles López-Cabarcos
Rural areas are essential to moving towards the necessary sustainable energy transition and climate change mitigation through renewable energy (RE) technologies. However, RE planning and decision-making in rural locations have not been developed to date with a focus on the local level and accompanied by a careful and thorough assessment of the simultaneous availability of alternative RE sources in a specific territory. Quite differently, RE investments in rural locations have been primarily driven by the interests of large power utilities to exploit a particular RE source, with benefits escaping from the rural economies to end up in the income statements of those large corporations. There is a need to approach RE planning at the municipal scale considering the availability of alternative RE sources. This study suggests the development of a rural RE potential index that could help in the identification of appropriate locations for the implementation of hybrid renewable energy systems (HRESs). The construction of a composite indicator to measure rural RE potential is exemplified through a case study that deals with ten indicators in the context of Galician rural municipalities, involving different RE potentials and some technical or regulatory constraints. Equal weighting and Principal Component Analysis are considered alternative methods for the index construction. Municipalities are the relevant local decision level where energy policy should be focused in order to diversify both the RE mix and the investor base. The proposed index could be the basis for future analyses aimed at optimizing the design and implementation of HRESs in rural environments at a local-regional-national scale.
农村地区对于通过可再生能源技术实现必要的可持续能源转型和减缓气候变化至关重要。然而,迄今为止,农村地区的可再生能源规划和决策尚未以地方一级为重点,并伴随着对特定地区可替代可再生能源同时可用性的仔细和彻底的评估。完全不同的是,在农村地区的可再生能源投资主要是由大型电力公司的利益驱动的,以开发特定的可再生能源资源,这些利益从农村经济中逃脱,最终出现在这些大公司的损益表中。考虑到可替代的可再生能源的可用性,有必要在市政规模上进行可再生能源规划。该研究建议制定农村可再生能源潜力指数,以帮助确定实施混合可再生能源系统(HRESs)的适当地点。本文通过一个案例研究,阐述了衡量农村可再生能源潜力的综合指标的构建,该案例研究涉及加利西亚农村市政当局的十个指标,涉及不同的可再生能源潜力和一些技术或监管限制。等权法和主成分分析法被认为是构建指标的两种方法。市政当局是相关的地方决策层,能源政策应集中于此,以使可再生能源组合和投资者基础多样化。建议的指数可以作为未来分析的基础,目的是在地方-区域-国家范围内优化农村环境中HRESs的设计和实施。
{"title":"Advancing towards a sustainable energy model. Uncovering the untapped potential of rural areas","authors":"Vanessa Miramontes-Viña, N. Romero-Castro, M. Ángeles López-Cabarcos","doi":"10.3934/environsci.2023017","DOIUrl":"https://doi.org/10.3934/environsci.2023017","url":null,"abstract":"Rural areas are essential to moving towards the necessary sustainable energy transition and climate change mitigation through renewable energy (RE) technologies. However, RE planning and decision-making in rural locations have not been developed to date with a focus on the local level and accompanied by a careful and thorough assessment of the simultaneous availability of alternative RE sources in a specific territory. Quite differently, RE investments in rural locations have been primarily driven by the interests of large power utilities to exploit a particular RE source, with benefits escaping from the rural economies to end up in the income statements of those large corporations. There is a need to approach RE planning at the municipal scale considering the availability of alternative RE sources. This study suggests the development of a rural RE potential index that could help in the identification of appropriate locations for the implementation of hybrid renewable energy systems (HRESs). The construction of a composite indicator to measure rural RE potential is exemplified through a case study that deals with ten indicators in the context of Galician rural municipalities, involving different RE potentials and some technical or regulatory constraints. Equal weighting and Principal Component Analysis are considered alternative methods for the index construction. Municipalities are the relevant local decision level where energy policy should be focused in order to diversify both the RE mix and the investor base. The proposed index could be the basis for future analyses aimed at optimizing the design and implementation of HRESs in rural environments at a local-regional-national scale.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70232001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Reduction of carbon emissions under sustainable supply chain management with uncertain human learning 人类学习不确定的可持续供应链管理下的碳减排
Q3 Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023032
Richi Singh, Dharmendra Yadav, S.R. Singh, Ashok Kumar, Biswajit Sarkar

Customers' growing concern for environmentally friendly goods and services has created a competitive and environmentally responsible business scenario. This global awareness of a green environment has motivated several researchers and companies to work on reducing carbon emissions and sustainable supply chain management. This study explores a sustainable supply chain system in the context of an imperfect flexible production system with a single manufacturer and multiple competitive retailers. It aims to reduce the carbon footprints of the developed system through uncertain human learning. Three carbon regulation policies are designed to control carbon emissions caused by various supply chain activities. Despite the retailers being competitive in nature, the smart production system with a sustainable supply chain and two-level screening reduces carbon emissions effectively with maximum profit. Obtained results explore the significance of uncertain human learning, and the total profit of the system increases to 0.039% and 2.23%, respectively. A comparative study of the model under different carbon regulatory policies shows a successful reduction in carbon emissions (beyond 20%), which meets the motive of this research.

客户对环保产品和服务的日益关注创造了一个具有竞争力和对环境负责的商业场景。全球对绿色环境的意识促使一些研究人员和公司致力于减少碳排放和可持续供应链管理。本研究探讨了在单一制造商和多个竞争零售商的不完全柔性生产系统下的可持续供应链系统。它旨在通过不确定的人类学习来减少发达系统的碳足迹。三种碳调控政策旨在控制各种供应链活动造成的碳排放。尽管零售商本质上是竞争的,但具有可持续供应链和两级筛选的智能生产系统有效地减少了碳排放,实现了利润最大化。所得结果探讨了不确定人类学习的意义,系统的总收益分别提高到0.039%和2.23%。通过对模型在不同碳监管政策下的比较研究表明,该模型的碳排放量成功减少(超过20%),这符合本研究的动机。
{"title":"Reduction of carbon emissions under sustainable supply chain management with uncertain human learning","authors":"Richi Singh, Dharmendra Yadav, S.R. Singh, Ashok Kumar, Biswajit Sarkar","doi":"10.3934/environsci.2023032","DOIUrl":"https://doi.org/10.3934/environsci.2023032","url":null,"abstract":"<abstract><p>Customers' growing concern for environmentally friendly goods and services has created a competitive and environmentally responsible business scenario. This global awareness of a green environment has motivated several researchers and companies to work on reducing carbon emissions and sustainable supply chain management. This study explores a sustainable supply chain system in the context of an imperfect flexible production system with a single manufacturer and multiple competitive retailers. It aims to reduce the carbon footprints of the developed system through uncertain human learning. Three carbon regulation policies are designed to control carbon emissions caused by various supply chain activities. Despite the retailers being competitive in nature, the smart production system with a sustainable supply chain and two-level screening reduces carbon emissions effectively with maximum profit. Obtained results explore the significance of uncertain human learning, and the total profit of the system increases to 0.039% and 2.23%, respectively. A comparative study of the model under different carbon regulatory policies shows a successful reduction in carbon emissions (beyond 20%), which meets the motive of this research.</p></abstract>","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136054099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ecoexergy in the context of environmental sciences 环境科学背景下的生态能源
Q3 Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023029
Yessica Linares González, Ricardo Peña Moreno, Vladimir Serkin, Laura Morales Lara

Nowadays, it is possible to assert that the causality of environmental problems entails a complex social, economic, cultural and political background; faced with such a situation, it is essential to have an operational science that considers the human factor that is in constant interaction with the environment (socio-ecological systems), while seeking sustainable development. Because of that, it became necessary to join different disciplines in a construct called Environmental Sciences, whose main objective is to study and solve problems related to human-environment interactions.

Endorsing the concept of exergy to an interdisciplinary science implies understanding how society satisfies its needs with the natural resources provided by the various ecosystems and how they sustain demand in the man-environment interaction cycle, starting from the development of structural and functional attributes in a dynamic flow of matter and energy. This can be addressed with the first and second laws of thermodynamics by allowing the use of holistic indicators in the Environmental Sciences; one such indicator is ecoexergy, which describes the state of an ecosystem based on the biomass content and genetic information. Thus, this work presents an outline of the incursion of exergy in the context of environmental sciences, which implies that the ecosystem is an open system whose behavior adheres to the laws of thermodynamics.

& lt; abstract>如今,可以断言,环境问题的因果关系涉及复杂的社会、经济、文化和政治背景;面对这种情况,在寻求可持续发展的同时,必须有一门考虑与环境(社会生态系统)不断相互作用的人的因素的业务科学。正因为如此,有必要将不同的学科联合起来,形成一个叫做环境科学的体系,其主要目标是研究和解决与人与环境相互作用有关的问题。从物质和能量动态流动的结构和功能属性的发展出发,将能源概念纳入跨学科科学意味着理解社会如何通过各种生态系统提供的自然资源来满足其需求,以及它们如何在人与环境的相互作用循环中维持需求。这可以通过允许在环境科学中使用整体指标来解决热力学第一定律和第二定律;其中一个指标是生态能,它描述了基于生物量和遗传信息的生态系统状态。因此,这项工作概述了环境科学背景下的能量入侵,这意味着生态系统是一个开放的系统,其行为遵循热力学定律。& lt; / abstract>
{"title":"Ecoexergy in the context of environmental sciences","authors":"Yessica Linares González, Ricardo Peña Moreno, Vladimir Serkin, Laura Morales Lara","doi":"10.3934/environsci.2023029","DOIUrl":"https://doi.org/10.3934/environsci.2023029","url":null,"abstract":"<abstract> <p>Nowadays, it is possible to assert that the causality of environmental problems entails a complex social, economic, cultural and political background; faced with such a situation, it is essential to have an operational science that considers the human factor that is in constant interaction with the environment (socio-ecological systems), while seeking sustainable development. Because of that, it became necessary to join different disciplines in a construct called Environmental Sciences, whose main objective is to study and solve problems related to human-environment interactions.</p> <p>Endorsing the concept of exergy to an interdisciplinary science implies understanding how society satisfies its needs with the natural resources provided by the various ecosystems and how they sustain demand in the man-environment interaction cycle, starting from the development of structural and functional attributes in a dynamic flow of matter and energy. This can be addressed with the first and second laws of thermodynamics by allowing the use of holistic indicators in the Environmental Sciences; one such indicator is ecoexergy, which describes the state of an ecosystem based on the biomass content and genetic information. Thus, this work presents an outline of the incursion of exergy in the context of environmental sciences, which implies that the ecosystem is an open system whose behavior adheres to the laws of thermodynamics.</p> </abstract>","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135596082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Trojan horse effects of microplastics: A mini-review about their role as a vector of organic and inorganic compounds in several matrices 微塑料的特洛伊木马效应:关于它们在几种基质中作为有机和无机化合物载体的作用的综述
Q3 Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023040
Fabiana Carriera, Cristina Di Fiore, Pasquale Avino

The "Trojan horse effect" of microplastics for organic and inorganic contaminants is an interesting topic. So far, the scientific community has focused on microplastics strictly as contaminants, but their role as vectors is still undefined. Adsorption of pollutants follows the Freundlich model by physisorption mechanism. Furthermore, ages and types of microplastics influence the adsorption of pollutants onto microplastics. Moreover, natural particles, like algae particles, present in the environment can interfere in the adsorption mechanisms. Due to their chemical composition of mainly O and N, it has been suggested that natural particles have a stronger adsorption affinity for some pollutants. Furthermore, microplastic's role as vector of pollutants into organisms is controversial. In fact, it has been suggested that the release is species-specific. In T. japonicus, accumulation of Hg loaded onto microplastics increased by 2.5 times, whereas a reduction of bioavailability of Hg was observed in R. lens.

& lt; abstract>微塑料对有机和无机污染物的“特洛伊木马效应”是一个有趣的话题。到目前为止,科学界一直将微塑料严格地视为污染物,但它们作为载体的作用仍未明确。污染物的吸附遵循Freundlich模型的物理吸附机理。此外,微塑料的年龄和类型影响微塑料对污染物的吸附。此外,环境中存在的天然颗粒,如藻类颗粒,会干扰吸附机制。由于天然颗粒的化学成分主要是O和N,因此有人认为天然颗粒对某些污染物具有更强的吸附亲和力。此外,微塑料作为污染物进入生物体的载体的作用是有争议的。事实上,有人认为这种释放是物种特异性的。在& lt; italic> T。在jjaponicus </斜体>中,汞在微塑料上的积累量增加了2.5倍,而Hg的生物利用度则降低了。lens< / italic>灵活;/ p>& lt; / abstract>
{"title":"Trojan horse effects of microplastics: A mini-review about their role as a vector of organic and inorganic compounds in several matrices","authors":"Fabiana Carriera, Cristina Di Fiore, Pasquale Avino","doi":"10.3934/environsci.2023040","DOIUrl":"https://doi.org/10.3934/environsci.2023040","url":null,"abstract":"<abstract> <p>The \"Trojan horse effect\" of microplastics for organic and inorganic contaminants is an interesting topic. So far, the scientific community has focused on microplastics strictly as contaminants, but their role as vectors is still undefined. Adsorption of pollutants follows the Freundlich model by physisorption mechanism. Furthermore, ages and types of microplastics influence the adsorption of pollutants onto microplastics. Moreover, natural particles, like algae particles, present in the environment can interfere in the adsorption mechanisms. Due to their chemical composition of mainly O and N, it has been suggested that natural particles have a stronger adsorption affinity for some pollutants. Furthermore, microplastic's role as vector of pollutants into organisms is controversial. In fact, it has been suggested that the release is species-specific. In <italic>T. japonicus</italic>, accumulation of Hg loaded onto microplastics increased by 2.5 times, whereas a reduction of bioavailability of Hg was observed in <italic>R. lens</italic>.</p> </abstract>","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135759430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
2019 Southeast Asia Transboundary Haze and its Influence on Particulate Matter Variations: A Case Study in Kota Kinabalu, Sabah 2019东南亚跨境雾霾及其对颗粒物变化的影响——以沙巴州哥打京那巴鲁为例
Q3 Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023031
Carolyn Payus, Siti Irbah Anuar, Fuei Pien Chee, Muhammad Izzuddin Rumaling, Agoes Soegianto

In 2019, Malaysia faced a deterioration of air quality due to transboundary haze, which brought negative implications, especially for public health. In light of the above scenario, continuous particulate matter (PM10, PM2.5 and PM1) and meteorological parameters amid the haze period were taken to unravel the influence of haze on particulate matter variations and to investigate the association between particulate matter concentrations with meteorological parameters and fire hotspots in Kota Kinabalu, where it is rarely studied. Particulate matter and the meteorological parameters were monitored during the haze season, continuously from 21 August–30 September 2019, using AirMate, a ground-based air monitoring equipment. Air mass backward trajectories were simulated using the HYSPLIT Model, and fire hotspot data was obtained from the Greenpeace Global Fire Dashboard. The results showed increasing particulate matter concentrations during the haze period, with PM2.5 exceeding the New Ambient Air Quality Standards (2020) on multiple days. For meteorological parameters, all parameters showed a significant weak positive relationship with respective particulate matter. However, the correlation between particulate matter and fire hotspots in Indonesia showed a moderate positive relationship. The backward trajectories simulated indicated the influence of south-westerly winds in transporting the pollutants from fire hotspots in the Indonesia region. Thus, we provide beneficial information about the impacted area during the 2019 transboundary haze episode, where the interactions between the particulate matter variations and the parameters studied were unraveled.

<abstract>< > 2019年,马来西亚因跨境雾霾而面临空气质量恶化的问题,这给公众健康带来了负面影响。根据上述情景,连续颗粒物(PM<sub>10</sub>, PM<sub>2.5</sub>和PM<sub>1</sub>)和雾霾期间的气象参数,揭示雾霾对颗粒物变化的影响,并探讨较少研究的亚打京那巴鲁地区颗粒物浓度与气象参数和火灾热点之间的关系。在2019年8月21日至9月30日的雾霾季节,使用地面空气监测设备AirMate连续监测颗粒物和气象参数。使用HYSPLIT模型模拟气团向后轨迹,并从绿色和平组织全球火灾仪表板获得火灾热点数据。结果表明:霾期颗粒物浓度呈上升趋势,PM<sub>2.5<连续多日超过《新环境空气质量标准(2020)》。在气象参数上,各参数与各颗粒物呈显著的弱正相关。然而,印度尼西亚的颗粒物与火灾热点之间的相关性显示出中度正相关。模拟的反向轨迹显示了西南风对印度尼西亚地区火区污染物输送的影响。因此,我们提供了有关2019年跨境雾霾事件期间受影响地区的有益信息,其中颗粒物变化与所研究参数之间的相互作用被揭示。</p></abstract>
{"title":"2019 Southeast Asia Transboundary Haze and its Influence on Particulate Matter Variations: A Case Study in Kota Kinabalu, Sabah","authors":"Carolyn Payus, Siti Irbah Anuar, Fuei Pien Chee, Muhammad Izzuddin Rumaling, Agoes Soegianto","doi":"10.3934/environsci.2023031","DOIUrl":"https://doi.org/10.3934/environsci.2023031","url":null,"abstract":"<abstract><p>In 2019, Malaysia faced a deterioration of air quality due to transboundary haze, which brought negative implications, especially for public health. In light of the above scenario, continuous particulate matter (PM<sub>10</sub>, PM<sub>2.5</sub> and PM<sub>1</sub>) and meteorological parameters amid the haze period were taken to unravel the influence of haze on particulate matter variations and to investigate the association between particulate matter concentrations with meteorological parameters and fire hotspots in Kota Kinabalu, where it is rarely studied. Particulate matter and the meteorological parameters were monitored during the haze season, continuously from 21 August–30 September 2019, using AirMate, a ground-based air monitoring equipment. Air mass backward trajectories were simulated using the HYSPLIT Model, and fire hotspot data was obtained from the Greenpeace Global Fire Dashboard. The results showed increasing particulate matter concentrations during the haze period, with PM<sub>2.5</sub> exceeding the New Ambient Air Quality Standards (2020) on multiple days. For meteorological parameters, all parameters showed a significant weak positive relationship with respective particulate matter. However, the correlation between particulate matter and fire hotspots in Indonesia showed a moderate positive relationship. The backward trajectories simulated indicated the influence of south-westerly winds in transporting the pollutants from fire hotspots in the Indonesia region. Thus, we provide beneficial information about the impacted area during the 2019 transboundary haze episode, where the interactions between the particulate matter variations and the parameters studied were unraveled.</p></abstract>","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135653430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microplastics in surface water and tissue of white leg shrimp, Litopenaeus vannamei, in a cultured pond in Nakhon Pathom Province, Central Thailand 泰国中部那空府一个养殖池塘中,凡纳滨对虾(Litopenaeus vannamei)表层水和组织中的微塑料
IF 1.4 Q3 Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023027
A. Vitheepradit, T. Prommi
The presence of microplastics in commercially important seafood species is a new issue of food safety concern. Although plastic debris has been found in the gastrointestinal tracts of several species, the prevalence of microplastics in edible shrimp tissues in Thailand has not yet been established. For the first time, the gastrointestinal tract (GT), heptapancreas (HEP), muscle (MU) and exoskeleton (EX) of farmed white leg shrimp (Litopenaeus vannamei) from commercial aquaculture facilities in Nakhon Pathom Province, Thailand, were analyzed for microplastics (MPs). The number of MP items per tissue was 27.36±2.28 in the GT, 17.42±0.90 in the HEP, 11.37±0.60 in the MU and 10.04±0.52 in the EX. MP concentrations were 137.78±16.48, 16.31±1.87, 1.69±0.13 and 4.37±0.27 items/gram (ww) in the GT, HEP, MU and EX, respectively. Microplastics ranged in size from < 100 to 200–250 μm, with fragment-shape (62.07%), fibers (37.31%) and blue (43.69%) was the most common. The most frequently found polymers in shrimp tissue organs and pond water were polyethylene terephthalate (PET), polyvinyl acetate (PVAc) and cellulose acetate butyrate (CAB). Shrimp consumption (excluding GT and EX) was calculated as 28.79 items/shrimp/person/day using Thailand's consumption of shrimp, MP abundance and shrimp consumption. The results of the study can be used as background data for future biomonitoring of microplastics in shrimp species that are significant from an ecological and commercial perspective. MP abundance in farmed L. vannamei may be related to feeding habits and the source of MPs could come from the aquaculture facilities operations.
微塑料在重要商业海鲜物种中的存在是一个新的食品安全问题。虽然在一些物种的胃肠道中发现了塑料碎片,但泰国食用虾组织中微塑料的普遍程度尚未确定。首次对泰国那孔府商业养殖设施养殖的凡纳滨白腿虾(Litopenaeus vannamei)的胃肠道(GT)、肝胰腺(HEP)、肌肉(MU)和外骨骼(EX)进行了微塑料(MPs)分析。每个组织的MP项目数,GT组为27.36±2.28个,HEP组为17.42±0.90个,MU组为11.37±0.60个,EX组为10.04±0.52个。MP浓度在GT、HEP、MU和EX组分别为137.78±16.48、16.31±1.87、1.69±0.13和4.37±0.27个/g (ww)。微塑料的粒径范围在< 100 ~ 200 ~ 250 μm之间,以块状(62.07%)、纤维状(37.31%)和蓝色(43.69%)最为常见。对虾组织器官和池塘水中最常见的聚合物是聚对苯二甲酸乙二醇酯(PET)、聚醋酸乙烯酯(PVAc)和醋酸丁酸纤维素(CAB)。虾的消费量(不包括GT和EX)根据泰国虾的消费量、MP丰度和虾的消费量计算为28.79只/虾/人/天。研究结果可作为未来对虾类微塑料生物监测的背景数据,具有重要的生态和商业意义。养殖的凡纳滨沼虾的MP丰度可能与摄食习性有关,MP的来源可能来自水产养殖设施的操作。
{"title":"Microplastics in surface water and tissue of white leg shrimp, Litopenaeus vannamei, in a cultured pond in Nakhon Pathom Province, Central Thailand","authors":"A. Vitheepradit, T. Prommi","doi":"10.3934/environsci.2023027","DOIUrl":"https://doi.org/10.3934/environsci.2023027","url":null,"abstract":"The presence of microplastics in commercially important seafood species is a new issue of food safety concern. Although plastic debris has been found in the gastrointestinal tracts of several species, the prevalence of microplastics in edible shrimp tissues in Thailand has not yet been established. For the first time, the gastrointestinal tract (GT), heptapancreas (HEP), muscle (MU) and exoskeleton (EX) of farmed white leg shrimp (Litopenaeus vannamei) from commercial aquaculture facilities in Nakhon Pathom Province, Thailand, were analyzed for microplastics (MPs). The number of MP items per tissue was 27.36±2.28 in the GT, 17.42±0.90 in the HEP, 11.37±0.60 in the MU and 10.04±0.52 in the EX. MP concentrations were 137.78±16.48, 16.31±1.87, 1.69±0.13 and 4.37±0.27 items/gram (ww) in the GT, HEP, MU and EX, respectively. Microplastics ranged in size from < 100 to 200–250 μm, with fragment-shape (62.07%), fibers (37.31%) and blue (43.69%) was the most common. The most frequently found polymers in shrimp tissue organs and pond water were polyethylene terephthalate (PET), polyvinyl acetate (PVAc) and cellulose acetate butyrate (CAB). Shrimp consumption (excluding GT and EX) was calculated as 28.79 items/shrimp/person/day using Thailand's consumption of shrimp, MP abundance and shrimp consumption. The results of the study can be used as background data for future biomonitoring of microplastics in shrimp species that are significant from an ecological and commercial perspective. MP abundance in farmed L. vannamei may be related to feeding habits and the source of MPs could come from the aquaculture facilities operations.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70232541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Decolorization of Reactive Red 120 by a novel bacterial consortium: Kinetics and heavy metal inhibition study 一种新型细菌联合体对活性红120的脱色:动力学和重金属抑制研究
IF 1.4 Q3 Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023024
M. Manogaran, M. Halmi, A. Othman, N. A. Yasid, B. Gunasekaran, M. Shukor
Juru River is one of the most polluted rivers in Malaysia. A dye-degrading bacterial consortium has been isolated from the river's sediment. This consortium JR3 consists of Pseudomonas aeruginosa MM01, Enterobacter sp. MM05 and Serratia marcescens MM06, which were able to decolorize up to 700 ppm of the Reactive Red 120 (RR120) dye under optimal conditions with limited substrate available. Substrate inhibition kinetics were investigated, and, based on the best model, Aiba, the maximum growth rate was 0.795 h–1, while the saturation constant and inhibitory constant were 0.185% and 0.14%, respectively. In addition, the influence of various metal ions on the growth and decolorization rate of this bacterial consortium on RR120 was investigated. Chromium showed the weakest effect on the decolorization of 200 ppm RR120, with 73.5% removal and bacterial growth of 11.461 log CFU mL–1. Zinc yielded the second weakest effect, followed by silver and lead, with percentages of RR120 decolorization of 63.8%, 54.6% and 50.5%, respectively. Meanwhile, cadmium, arsenic and copper reduced the decolorization of RR120 in consortium JR3 by half. Mercury strongly inhibited decolorization by 32.5%. Based on the least inhibited heavy metal in RR120 decolorization activity of consortium JR3, the best inhibitory kinetic model was Levenspiel, with a maximum growth rate of 0.632 h–1, while the saturation constant and inhibitory constants were 15.08% and 0.5783%, respectively. The metal-tolerant azo dye-degrading bacterial consortium will be very useful in dye remediation in metal-laden polluted environments.
居鲁河是马来西亚污染最严重的河流之一。从河流的沉积物中分离出一种染料降解菌群。该联合体JR3由铜绿假单胞菌MM01,肠杆菌MM05和粘胶沙雷氏菌MM06组成,能够在有限底物的最佳条件下脱色高达700 ppm的活性红120 (RR120)染料。研究底物抑制动力学,以Aiba为最佳模型,最大生长速率为0.795 h-1,饱和常数和抑制常数分别为0.185%和0.14%。此外,还考察了不同金属离子对该菌群在RR120上的生长和脱色速率的影响。铬对200 ppm RR120的脱色效果最弱,去除率为73.5%,细菌生长为11.461 log CFU mL-1。其次是锌,其次是银和铅,RR120的脱色率分别为63.8%、54.6%和50.5%。同时,镉、砷和铜使财团JR3中RR120的脱色率降低了一半。汞强烈抑制脱色32.5%。根据JR3对重金属对RR120脱色活性抑制最小的结果,最佳抑制动力学模型为Levenspiel,最大生长速率为0.632 h-1,饱和常数为15.08%,抑制常数为0.5783%。耐金属偶氮染料降解菌群在重金属污染环境中的染料修复中具有重要的应用价值。
{"title":"Decolorization of Reactive Red 120 by a novel bacterial consortium: Kinetics and heavy metal inhibition study","authors":"M. Manogaran, M. Halmi, A. Othman, N. A. Yasid, B. Gunasekaran, M. Shukor","doi":"10.3934/environsci.2023024","DOIUrl":"https://doi.org/10.3934/environsci.2023024","url":null,"abstract":"Juru River is one of the most polluted rivers in Malaysia. A dye-degrading bacterial consortium has been isolated from the river's sediment. This consortium JR3 consists of Pseudomonas aeruginosa MM01, Enterobacter sp. MM05 and Serratia marcescens MM06, which were able to decolorize up to 700 ppm of the Reactive Red 120 (RR120) dye under optimal conditions with limited substrate available. Substrate inhibition kinetics were investigated, and, based on the best model, Aiba, the maximum growth rate was 0.795 h–1, while the saturation constant and inhibitory constant were 0.185% and 0.14%, respectively. In addition, the influence of various metal ions on the growth and decolorization rate of this bacterial consortium on RR120 was investigated. Chromium showed the weakest effect on the decolorization of 200 ppm RR120, with 73.5% removal and bacterial growth of 11.461 log CFU mL–1. Zinc yielded the second weakest effect, followed by silver and lead, with percentages of RR120 decolorization of 63.8%, 54.6% and 50.5%, respectively. Meanwhile, cadmium, arsenic and copper reduced the decolorization of RR120 in consortium JR3 by half. Mercury strongly inhibited decolorization by 32.5%. Based on the least inhibited heavy metal in RR120 decolorization activity of consortium JR3, the best inhibitory kinetic model was Levenspiel, with a maximum growth rate of 0.632 h–1, while the saturation constant and inhibitory constants were 15.08% and 0.5783%, respectively. The metal-tolerant azo dye-degrading bacterial consortium will be very useful in dye remediation in metal-laden polluted environments.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70231695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Cypermethrin insecticide residue, water quality and phytoplankton diversity in the lychee plantation catchment area 荔枝种植集水区氯氰菊酯杀虫剂残留、水质及浮游植物多样性
Q3 Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023034
Jirapa Wongsa, Ramita Liamchang, Neti Ngearnpat, Kritchaya Issakul

Lychee plantation areas are typically located at varying elevations on mountains to ensure proper drainage. This placement has direct effects on stream and river water flows and consequently influences pesticide residue, water quality and aquatic biodiversity. This research aims to examine the relationships between cypermethrin residue, water quality and phytoplankton diversity in the lychee plantation catchment area in Phayao Province, Thailand, from January to May 2022. The study area was divided into six sampling sites. Water samples were collected for the investigation of cypermethrin residual, physicochemical and biological water quality parameters. The water quality index was used as an overall measurement of water quality. The study also examined the diversity of phytoplankton species and the relationship among cypermethrin residue, water quality and phytoplankton diversity were studied using canonical correspondence analysis. The findings revealed an increasing trend of cypermethrin residue, with the maximum concentration reaching 29.43 mg/L in March. The trend of decreasing water quality scores from Station S1 to Station S5 indicated the influence of land use changes and human activities, especially in the community area (S5), which was characterized by deterioration of water quality. A total of 174 phytoplankton species were categorized into 5 divisions, with Chlorophyta accounting for 61.49% of the total, followed by Bacillariophyta (28.16%) and Cyanophyta (6.32%). The highest Shannon's diversity index and evenness were observed at Stations S3 and S4, respectively. The canonical correspondence analysis revealed an interesting relationship among cypermethrin residue, ammonia nitrogen, chlorophyll a and three algal species: Pediastrum simplex var. echinulatum, Pediastrum duplex var. duplex and Scenedesmus acutus at Station S3. This research implies that pesticide residue and water quality have a direct impact on phytoplankton distribution, illustrating the environmental challenges that occur in various geographical areas. This information can be applied to assist in the development of future sustainable land use management initiatives.

& lt; abstract>荔枝种植区通常位于不同海拔的山上,以确保适当的排水。这种布置对溪流和河流水流有直接影响,从而影响农药残留、水质和水生生物多样性。本研究旨在研究2022年1 - 5月泰国帕瑶省荔枝种植集水区氯氰菊酯残留量与水质和浮游植物多样性之间的关系。研究区分为6个采样点。采集水样,调查氯氰菊酯残留量及理化、生物水质参数。采用水质指数作为水质的综合衡量指标。利用典型对应分析方法,研究了氯氰菊酯残留量与水质、浮游植物多样性之间的关系。氯氰菊酯残留量呈上升趋势,3月份最高达到29.43 mg/L。从S1站到S5站,水质得分呈下降趋势,表明受土地利用变化和人类活动的影响,特别是在社区区(S5),水质表现出恶化的特征。浮游植物共174种,共分为5个纲,其中绿藻纲占61.49%,硅藻纲占28.16%,蓝藻纲占6.32%。Shannon多样性指数和均匀度分别在S3和S4站点最高。典型对应分析表明,氯氰菊酯残留、氨氮、叶绿素a与3种藻类<italic>Pediastrum simplex</italic>var. <italic>echinulatum</italic>; <var。& lt; italic> duplex< / italic>and <italic>Scenedesmus acutus</italic>在S3站。该研究表明,农药残留和水质对浮游植物的分布有直接影响,说明了不同地理区域发生的环境挑战。这些资料可用于协助制订未来可持续的土地使用管理措施。& lt; / abstract>
{"title":"Cypermethrin insecticide residue, water quality and phytoplankton diversity in the lychee plantation catchment area","authors":"Jirapa Wongsa, Ramita Liamchang, Neti Ngearnpat, Kritchaya Issakul","doi":"10.3934/environsci.2023034","DOIUrl":"https://doi.org/10.3934/environsci.2023034","url":null,"abstract":"<abstract> <p>Lychee plantation areas are typically located at varying elevations on mountains to ensure proper drainage. This placement has direct effects on stream and river water flows and consequently influences pesticide residue, water quality and aquatic biodiversity. This research aims to examine the relationships between cypermethrin residue, water quality and phytoplankton diversity in the lychee plantation catchment area in Phayao Province, Thailand, from January to May 2022. The study area was divided into six sampling sites. Water samples were collected for the investigation of cypermethrin residual, physicochemical and biological water quality parameters. The water quality index was used as an overall measurement of water quality. The study also examined the diversity of phytoplankton species and the relationship among cypermethrin residue, water quality and phytoplankton diversity were studied using canonical correspondence analysis. The findings revealed an increasing trend of cypermethrin residue, with the maximum concentration reaching 29.43 mg/L in March. The trend of decreasing water quality scores from Station S1 to Station S5 indicated the influence of land use changes and human activities, especially in the community area (S5), which was characterized by deterioration of water quality. A total of 174 phytoplankton species were categorized into 5 divisions, with Chlorophyta accounting for 61.49% of the total, followed by Bacillariophyta (28.16%) and Cyanophyta (6.32%). The highest Shannon's diversity index and evenness were observed at Stations S3 and S4, respectively. The canonical correspondence analysis revealed an interesting relationship among cypermethrin residue, ammonia nitrogen, chlorophyll a and three algal species: <italic>Pediastrum simplex</italic> var. <italic>echinulatum</italic>, <italic>Pediastrum duplex</italic> var. <italic>duplex</italic> and <italic>Scenedesmus acutus</italic> at Station S3. This research implies that pesticide residue and water quality have a direct impact on phytoplankton distribution, illustrating the environmental challenges that occur in various geographical areas. This information can be applied to assist in the development of future sustainable land use management initiatives.</p> </abstract>","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135213645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Soil moisture routing modeling of targeted biochar amendment in undulating topographies: an analysis of biochar's effects on streamflow 起伏地形中目标生物炭修正的土壤水分路径模型:生物炭对水流影响的分析
Q3 Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023030
Adam O'Keeffe, Erin Brooks, Chad Dunkel, Dev S. Shrestha

The effect of biochar on hydrologic fluxes was estimated using a single hillslope version of a gridded soil moisture routing (SMR) model. Five grid cells were aligned linearly with varied slopes to simulate a small undulating hillslope with or without a restrictive layer beneath the soil profile. Biochar amendments (redwood sawdust and wheat straw biochar) at concentrations of 0%, 4%, and 7% were applied to the topmost grid-cell by mass of dry soil. Simulated streamflow hydrographs for restricted and non-restricted soil profiles were manually calibrated with measured Palouse River streamflow data. Evapotranspiration, percolation, lateral flow, baseflow, and streamflow were all modeled yearly. Two generally reported field capacities (FC) in literature at −6 and −33 kPa were considered to assess the effect of biochar. Field capacity considered at −6 kPa corresponds to higher moisture content, and hence higher moisture storage capacity between FC and permanent wilting point than at −33 kPa. At −6 kPa FC, biochar effectively increased evapotranspiration and reduced the lateral flow of the system. Increased soil porosity from biochar amendment enhanced the water holding capacity of the soil and plant available water. These mechanisms impacted the streamflow generated from the system indicating positive outcomes from biochar amendment in both restricted and non-restricted soil profiles. Biochar amendment showed an order of magnitude smaller effects with −33 kPa FC compared to −6 kPa FC; the increased porosity appeared to be less influential at lower field capacity values. Additionally, the results showed that the over-application of coarse biochar might negatively affect retaining soil moisture. These findings point to positive results for using biochar as a water management strategy if applied less than 7% in this study, but further exploration is needed to find the optimum level of biochar with different biochar and soil properties.

生物炭对水文通量的影响是使用一个单一的坡面网格土壤水分路径(SMR)模型来估计的。五个网格单元与不同的斜坡线性排列,以模拟土壤剖面下有或没有限制层的小起伏山坡。按干土质量将浓度为0%、4%和7%的生物炭改良剂(红木锯末和小麦秸秆生物炭)施用于最上面的网格细胞。模拟的受限和非受限土壤剖面的水流曲线是用实测的帕卢斯河水流数据手动校准的。蒸散发、渗透、侧流、基流和径流都是每年模拟的。文献中两个通常报道的- 6和- 33 kPa的田间容量(FC)被用来评估生物炭的效果。−6 kPa时考虑的现场容量对应较高的含水率,因此比−33 kPa时FC到永久萎蔫点之间的储水容量更高。在−6 kPa FC下,生物炭有效地增加了系统的蒸散量,减少了系统的侧流量。生物炭改性提高了土壤孔隙度,提高了土壤和植物有效水分的持水量。这些机制影响了系统产生的流量,表明生物炭在限制和非限制土壤剖面中都有积极的结果。与−6 kPa FC相比,−33 kPa FC对生物炭改性的影响要小一个数量级;在较低的现场容量值下,孔隙度增加的影响较小。此外,过量施用粗质生物炭可能对土壤水分保持产生不利影响。这些发现表明,如果在本研究中施用少于7%的生物炭作为水管理策略,将取得积极的结果,但需要进一步探索不同生物炭和土壤性质的最佳生物炭水平。</p> /abstract>
{"title":"Soil moisture routing modeling of targeted biochar amendment in undulating topographies: an analysis of biochar's effects on streamflow","authors":"Adam O'Keeffe, Erin Brooks, Chad Dunkel, Dev S. Shrestha","doi":"10.3934/environsci.2023030","DOIUrl":"https://doi.org/10.3934/environsci.2023030","url":null,"abstract":"<abstract><p>The effect of biochar on hydrologic fluxes was estimated using a single hillslope version of a gridded soil moisture routing (SMR) model. Five grid cells were aligned linearly with varied slopes to simulate a small undulating hillslope with or without a restrictive layer beneath the soil profile. Biochar amendments (redwood sawdust and wheat straw biochar) at concentrations of 0%, 4%, and 7% were applied to the topmost grid-cell by mass of dry soil. Simulated streamflow hydrographs for restricted and non-restricted soil profiles were manually calibrated with measured Palouse River streamflow data. Evapotranspiration, percolation, lateral flow, baseflow, and streamflow were all modeled yearly. Two generally reported field capacities (FC) in literature at −6 and −33 kPa were considered to assess the effect of biochar. Field capacity considered at −6 kPa corresponds to higher moisture content, and hence higher moisture storage capacity between FC and permanent wilting point than at −33 kPa. At −6 kPa FC, biochar effectively increased evapotranspiration and reduced the lateral flow of the system. Increased soil porosity from biochar amendment enhanced the water holding capacity of the soil and plant available water. These mechanisms impacted the streamflow generated from the system indicating positive outcomes from biochar amendment in both restricted and non-restricted soil profiles. Biochar amendment showed an order of magnitude smaller effects with −33 kPa FC compared to −6 kPa FC; the increased porosity appeared to be less influential at lower field capacity values. Additionally, the results showed that the over-application of coarse biochar might negatively affect retaining soil moisture. These findings point to positive results for using biochar as a water management strategy if applied less than 7% in this study, but further exploration is needed to find the optimum level of biochar with different biochar and soil properties.</p></abstract>","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135596075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
AIMS Environmental Science
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1